Finisar Watch Brocade Fabric Watch User Manual

Brocade Fabric WatchTM  
User’s Guide  
Version 3.0  
Publication Number 53-0000137-03  
 
Contents  
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Fabric Watch User’s Guide  
i
 
Preface  
Fabric Watch is an optionally licensed product, and requires a valid license key to function. It is  
supported on the SilkWorm® 3800 series of switches running Brocades Fabric OS™ v3.0.  
About This Guide  
This guide provides the following information about Fabric Watch:  
Chapter 1  
Provides an overview of Fabric Watch.  
Introducing Fabric Watch  
Chapter 2  
Provides instructions for installing Fabric Watch.  
Installing Fabric Watch  
Chapter 3  
Using Fabric Watch  
Provides information about configuring and using Fabric  
Watch.  
Related Publications  
Related product information can be found in the following Brocade publications:  
Brocade Fabric OS Procedures Guide  
Brocade Fabric OS Reference  
Brocade MIB Reference  
Brocade Web Tools Users Guide  
Brocade Zoning Users Guide  
Brocade QuickLoop Users Guide  
Brocade Fabric Watch Users Guide  
Brocade Distributed Fabrics Users Guide  
Brocade ISL Trunking Users Guide  
Brocade Advanced Performance Monitor Users Guide  
Brocade SES Users Guide  
Fabric Watch Users Guide  
iii  
 
     
Information about fibre channel standards and fibre channel in general can be found on the Fibre  
Channel Association web site, located at:  
Getting Help  
Contact your switch supplier for technical support. This includes hardware and software support,  
all product repairs, and ordering of spare components.  
Be prepared to provide the following information to support personnel:  
Switch serial number  
Switch worldwide name  
Topology configuration  
Output from the supportShowtelnet command  
Detailed description of the problem  
Troubleshooting steps already performed  
Getting Software Updates  
Contact your switch supplier for software updates and maintenance releases. New switch firmware  
can be installed from the following host operating systems:  
UNIX  
Windows NT  
Windows 98  
Windows 95  
Utility programs to facilitate loading firmware, sample Fabric Watch configurations, and MIB files  
for switch management by SNMP can be accessed on the Brocade website through the following  
steps:  
1. Open a web browser at:  
2. Click Support.  
3. Click MIBs and RSH Utilities.  
4. Click the link for the desired product.  
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Fabric Watch Users Guide  
 
       
Chapter  
Introducing Brocade Fabric Watch  
1
This chapter provides the following information:  
Overview  
Brocade Brocade Fabric WatchTM is used by SAN managers to monitor key fabric and switch  
elements, making it easy to quickly identify and escalate potential problems. It monitors each  
element for out-of-boundary values or counters and provides notification when any exceed the  
defined boundaries. The SAN manager can configure which elements, such as error, status, and  
performance counters within a SilkWorm switch, are monitored.  
Brocade Fabric WatchTM is an optionally licensed product that runs on SilkWorm 2000 series  
switches and above with Brocades Fabric OSversion v3.0. Brocade Fabric WatchTM can be  
accessed through:  
Brocade Web Tools  
A telnet interface  
A SNMP-based enterprise manager  
By modifying and uploading the Brocade Fabric WatchTM configuration file to the switch.  
Brocade Fabric WatchTM monitors the following elements:  
Fabric events (such as topology reconfigurations, zone changes)  
Switch environment (fans, power supplies, and temperature)  
Ports (state changes, errors, and performance)  
GBICs (for switches equipped with SMART GBICs.  
Example: the Finiasr SMART GBIC FTR-8519-3).  
With Brocade Fabric WatchTM installed, each switch continuously monitors error and performance  
counters against a set of defined ranges. This and other information specific to each monitored  
element is made available by Brocade Fabric WatchTM for viewing and, in some cases,  
modification. This set of information about each element is called a threshold, and the upper and  
lower limits of the defined ranges are called boundaries.  
If conditions break out of acceptable ranges, an event is considered to have occurred, and one or  
more of the following alarms (reporting mechanisms) are generated if configured for the relevant  
threshold:  
SNMP trap  
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Introducing Brocade Fabric Watch  
Entry in the switch event log  
Locking of the port log to preserve the relevant information  
RAN (Remote Asynchronous Notification) Alert.  
Note: The RAN alert is only available if the optional Fabric Access license has  
been purchased and turned on.  
Email Alert  
You can deploy Brocade Fabric WatchTM as shipped, or download a customized configuration  
profile from the following website:  
Threshold Behavior Models  
The behavior models for thresholds are:  
Range  
Rising/falling  
Change monitor  
Range Threshold  
A range threshold tracks whether a fabric element is within a specified range. It includes a  
minimum and maximum boundary for the area, with buffer zones to prevent repeated events due to  
oscillation of the value over a threshold boundary. If the value exceeds the low or high threshold  
boundary, an event is generated. Fabric Watch can also generate events while the value is outside  
the limits or when it re-enters the prescribed range.  
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Introducing Brocade Fabric Watch  
Figure 1-1 shows a typical example of an error counter with a temperature range threshold.  
Figure 1-1 Example of Range Threshold: Temperature (Celsius)  
Rising/Falling Threshold  
A rising/falling threshold tracks whether an element is on the desired side of a boundary. It includes  
an upper and lower boundary, and the buffer zones are always zero. Events can be selected for  
transitions between the boundaries. Rising/falling thresholds are typically used for rate based  
counters. Rate based counters are all counters with a time base set to something other than none,  
this includes the TX Perf and RX Perf counters.  
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Introducing Brocade Fabric Watch  
Figure 1-2 shows a typical example of an error counter with a rising/falling threshold.  
Figure 1-2 Example of Rising/Falling Threshold: Error Rate  
Change Monitor Threshold  
A change monitor threshold generates events whenever a counter value changes, regardless of the  
type of change. This type of threshold is usually used to indicate state changes, such as zoning  
changes.  
Note: The change monitor counter value displayed is the cumulative count (historical count) and  
not the delta value from the previous triggered value.  
An illustration is not provided because change monitor thresholds do not include boundaries.  
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Chapter  
Installing Fabric Watch  
2
This chapter provides the following information:  
Installing through telenet commands 2-1  
Installing through Brocade Web ToolsTM 2-2  
Each switch running Fabric Watch must have a Fabric Watch license installed on it. A license may  
have been installed in the switch at the factory. If not, contact your switch supplier to obtain a  
license key.  
Fabric Watch requires a SilkWorm 2000 series switch or above running Brocades Fabric OSTM  
3.0. A Fabric Watch license can be installed either using telnet commands or through Brocade Web  
ToolsTM  
.
Installing through Telnet  
To install Fabric Watch using telnet commands perform the following steps:  
1. Log onto the switch by telnet (refer to Brocade Fabric OS Users Guide for details), using an  
account that has administrative privileges.  
2. To determine whether a Fabric Watch license is already installed on the switch, type  
licenseShowon the telnet command line.  
A list displays all the licenses currently installed on the switch.  
Example:  
admin> licenseShow  
1A1AaAaaaAAAA1a:  
Release v3.0  
Web license  
Zoning license  
SES license  
QuickLoop license  
If the Fabric Watch license is not included in the list or is incorrect, continue with step [3].  
3. Enter the following on the command line:  
licenseAdd “key”  
where keyis the license key provided to you, surrounded by double quotes. The license key  
is case sensitive and must be entered exactly as given.  
4. Verify the license was added by entering the following on the command line:  
licenseShow  
If the license is not listed, repeat step [3].  
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Installing Fabric Watch  
Installing through Brocade Web Tools  
To install Fabric Watch using Web Tools, perform the following steps:  
1. Launch the web browser, enter the switch name or IP address in the Location/Address field  
(for example: http://111.222.33.1), and press Enter.  
Brocade Web ToolsTM launches, displaying the Fabric View.  
2. Click the Admin button on the relevant switch panel.  
The logon window displays.  
3. Enter a logon name and password with administrative privileges and press Enter.  
The Administration View displays.  
4. Select the License Admin tab, enter the license key in the License Key: field, and click Add  
License.  
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Chapter  
Using Fabric Watch  
3
This chapter provides the following information:  
Overview  
Fabric Watch provides the following information about each out-of-boundary condition discovered:  
Name of threshold  
Current value of element counter  
Unit of measurement (for example, degrees Celsius, RPM, or unit of time)  
Time base for counter, used to compute rate of change (for example, events per minute)  
Historical information about the last alarmed event generated  
User Interfaces  
Use either Brocade Web ToolsTM, telnet interface, an SNMP-based enterprise manager, or the  
configuration file to view and modify Fabric Watch settings.  
Brocade Web Tools  
Through Brocade Web ToolsTM, you can:  
View fabric and switch events through the fabric-wide Event View.  
View and modify threshold and alarm configurations through the Fabric Watch View.  
Upload and download the configuration file through the Config Admin tab in the Switch  
Admin window.  
Refer to the Brocade Web Tools Users Guide for information on using Brocade Web ToolTM  
.
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Using Fabric Watch  
Telnet Interface  
You can do the following using a telnet interface:  
Query fabric and switch events through the telnet command fwShow.  
Query and modify threshold and alarm configurations. Use the the telnet command  
fwConfigure to view the default and customized settings.  
Upload and download the configuration file through the commands configUploadand  
configDownload.  
SNMP-Based Enterprise Managers  
The Fabric Watch configuration information is stored as MIB variables, allowing you to do the  
following:  
Query the MIB variable for individual fabric and switch elements.  
Query and modify threshold and alarm configurations.  
Receive generated SNMP traps when threshold conditions are met.  
Configuration File  
You can view and modify the threshold and alarm configurations by uploading the configuration  
file from the switch to the host, editing it in a text editor, then downloading the modified file back  
to the switch. You can then ensure a uniform configuration throughout the fabric by distributing the  
configuration file to all the switches in the fabric.  
The configuration file can be uploaded and downloaded through either Brocade Web ToolsTM (the  
Config Admin tab in the Switch Admin window) or the telnet commands configUpload and  
configDownload. After downloading the file back to the switch, you must either reboot the  
switch or use the telnet command fwConfigReloadto reload the configuration file.  
Profiles  
Each Fabric Watch profile contains a unique threshold and alarm settings. Current profiles are  
divided into:  
debug  
workgroup errlog  
workgroup snmp  
enterprise errlog  
enterprise snmp  
In addition, a Fabric Watch profile specific to your environment can be downloaded to the switch to  
customize the configuration.  
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Using Fabric Watch  
Several customized profiles for Fabric Watch are available at the following website:  
Each profile is for a different purpose, and contains only the configuration information that is  
different from the default configuration.  
The intention is to have distinct configuration setting for enterprise SAN and a workgroup SANs  
are left for individual users.  
The default information is always preserved. After loading the profile, you can specify whether the  
default or the profile information is used.  
A profile may contain the following information:  
Threshold values:  
- Unit string  
- Time base  
- Lower boundary  
- Upper boundary  
- Buffer size  
Alarm values  
- Change  
- Exceed  
- Below  
- Above  
- In-between  
- Behavior type  
Classes  
Fabric and switch elements are organized into classes (also known as Agents), which are groupings  
of closely related elements. There major classes are:  
Fabric  
Monitors key fabric resources, such as fabric reconfiguration,  
zoning changes, new fabric logins  
Environmental  
Monitors switch environment functions, such as temperature,  
power supply, fan status  
Port  
Monitors port error and performance counters  
E_Port  
Monitors E_Port error and performance counters  
F/FL_Port (Optical)  
F/FL_Port (Copper)  
GBIC  
Monitors optical FL/F_Port error and performance counters  
Monitors copper FL/F_Port error and performance counters  
Monitors operational values for FINISAR smart GBICs  
ALPA  
Note: The ALPA class is only available if the optional  
Performance Monitoring license has been purchased and  
turned on.  
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Using Fabric Watch  
Monitors ALPA devices of Loop ports (currently CRC error of  
ALPA device only).  
End-to-End  
1 - Monitors transmitting performance predefined by the  
SID-DID pair. Configurable with either telnet commands or  
Web Tools at run time.  
2 - Monitors receiving performance predefined by the SID-DID  
pair. Configurable with either telnet commands or Web Tools  
at run time.  
3 - Monitors CRC errors of prefedined SID-DID pair.  
Configurable with either telnet commands or Web Tools at run  
time.  
The configuration information of the End-to-End class is lost when  
the switch is rebooted or fast booted.  
Note: The End-to-End class is only available if the optional  
Performance Monitoring license has been purchased and  
turned on.  
Note: The EE filter is preconfigured with either a telnet command  
or Web Tools at run time.  
Filter  
Monitors the filter counter for a given port. Provides the following  
types of information about the filter hit:  
1 - Read command  
2 - SCSI or IP traffic  
3 - SCSI Read/Write  
Note: The Filter class is only available if the optional  
Performance Monitoring license has been purchased and  
turned on.  
Note: The type of filter is predefined by configuring it with either  
a telnet command or Web Tools at run time.  
In addition, each class is subdivided into areas, as listed in the following table.  
Table 3-1  
Fabric Watch Classes and Areas  
Class  
Area  
Description  
Fabric  
Loss of E_Port  
Monitors E_Port status.  
Fabric reconfiguration  
Monitors fabric configuration  
changes.  
Segmentation changes  
Domain ID changes  
Monitors segmentation changes.  
Monitors forcible DOMAIN ID  
changes.  
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Class  
Area  
Description  
Fabric  
Zoning changes  
Monitors changes to currently  
enabled zoning configuration.  
Continued  
Fabric to QuickLoop  
changes  
Monitors ports to detect changes from  
fabric to QuickLoop or QuickLoop to  
fabric.  
Fabric logins  
Monitors number of host device  
fabric logins (flogi).  
GBIC change  
Temperature  
Fan  
Monitors insertion/removal of GBIC.  
Monitors switch temperature.  
Environmental  
Monitors operation of switch fans.  
Monitors status of each power supply.  
Power supply  
Port  
Link failure count  
Monitors link failure count for each  
port.  
Loss of synchronization  
count  
Monitors port sync loss.  
Loss of signal count  
Monitors port signal loss.  
Primitive sequence  
protocol error  
Monitors port protocol errors.  
Invalid transmission word Monitors port invalid words.  
Invalid CRC count  
Receive performance  
Transmit performance  
State changes  
Monitors port CRC errors.  
Monitors port receive performance.  
Monitors port transmit performance.  
Monitors port state changes.  
E_Port  
Link failure count  
Monitors link failure of each E_port.  
Monitors E_port sync loss.  
Loss of synchronization  
count  
Loss of signal count  
Monitors E_port signal loss.  
Primitive sequence  
protocol error  
Monitors E_port protocol errors.  
Invalid transmission word Monitors E_port invalid words.  
Invalid CRC count  
Monitors E_port CRC errors.  
Receive performance  
Monitors E_port receive  
performance.  
Transmit performance  
State changes  
Monitors E_port transmit  
performance.  
Monitors E_port state changes.  
F/FL_Port  
(Optical)  
Link failure count  
Monitors link failure of each optical  
F/FL_port.  
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Class  
Area  
Description  
Loss of synchronization  
count  
Monitors optical F/FL_port sync loss.  
Loss of signal count  
Monitors optical F/FL_port signal  
loss.  
Primitive sequence  
protocol error  
Monitors optical F/FL_port protocol  
errors.  
Invalid transmission word Monitors optical F/FL_port invalid  
words.  
Invalid CRC count  
Receive performance  
Transmit performance  
State changes  
Monitors optical F/FL_port CRC  
errors.  
Monitors optical F/FL_port receive  
performance.  
Monitors optical F/FL_port transmit  
performance.  
Monitors optical F/FL_port state  
changes.  
F/FL_Port  
(Copper)  
Link failure count  
Monitors link failure of each copper  
F/FL_port.  
Loss of synchronization  
count  
Monitors copper F/FL_port sync loss.  
Loss of signal count  
Monitors copper F/FL_port signal  
loss.  
Primitive sequence  
protocol error  
Monitors copper F/FL_port protocol  
errors.  
Invalid transmission word Monitors copper F/FL_port invalid  
words.  
Invalid CRC count  
Receive performance  
Transmit performance  
State changes  
Monitors copper F/FL_port CRC  
errors.  
Monitors copper F/FL_port receive  
performance.  
Monitors copper F/FL-port transmit  
performance.  
Monitors copper F/FL_port state  
changes.  
GBIC  
Temperature  
Monitors GBIC temperature.  
(FINISAR Smart  
GBIC)  
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Class  
Area  
Description  
GBIC  
Receiver power  
Monitors GBIC receiver power.  
(FINISAR Smart  
GBIC)  
Continued  
Transmitter power  
Current  
Monitors GBIC transmitter power.  
Monitors GBIC current.  
ALPA  
CRC Counter  
Monitors all active ALPA devices on  
loop ports.  
End-to-End  
CRC - Counter  
Monitors CRC errors of a predefined  
SID-DID pair at a given port.  
Transmit performance  
Receive performance  
Monitors transmit performance of  
predefined SID-DID pair at a given  
port.  
Monitors receive performance of a  
predefined SID-DID pair at a given  
port.  
Filter  
Customer defined fibre  
channel word.  
Monitors the filter counter for a given  
port. Provides the following types of  
information about the filter hit:  
1 - Read command  
2 - SCSI or IP traffic  
3 - SCSI Read/Write  
Threshold Naming Conventions  
All threshold names consist of the following three items, with no separators:  
Abbreviation for the class name (alpha characters, lower case), as follows:  
Class  
Abbreviation  
fabric  
Fabric  
Environment  
Port  
env  
port  
E_Port  
eport  
F/FL_Port (Optical) fopport  
F/FL_Port (Copper) fcuport  
GBIC  
gbic  
alpa  
ee  
ALPA  
End-to-End  
Filter  
flt  
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Abbreviation for the area name (alpha characters, title case). For example, Tempfor the  
Temperature area.  
Index number for the number of the item within the series. Consists of three numbers, for  
example: 000 for the first port, 001 for the next, etc. Index numbers for the Fabric, Port, E_Port,  
F/FL_Port (Optical), F/FL_Port (Copper), and GBIC classes begin with 000, and index numbers  
for the Environment class begin with 001.  
Example of a Threshold Name:  
The threshold corresponding to the first thermometer in the switch is in the Environment class,  
Temperature area, and is therefore named envTemp001.  
Events  
An event is generated each time a boundary, as defined by the threshold, is crossed. Boundaries are  
not inclusive, so events are generated only when a boundary is exceeded, not when the monitored  
value has only reached them. If the event has an assigned alarm, an alarm is also generated. The  
alarm can be designated as an SNMP trap, an entry in the switch error log, locking of the port log,  
or a combination of these options.  
When an item such as an E_Port, F/FL_Port (optical), F/FL_Port (copper), FINISAR Smart GBIC,  
fan, or power supply is removed, Fabric Watch may raise an event (such as a below event), then the  
threshold is hidden and disabled. When an item is added, the threshold is displayed and enabled,  
and Fabric Watch may raise an event.  
Event policies control the generation of events, and can be configured for either triggered events or  
continuous events.  
Triggered Events  
A triggered event results in a single event when a boundary is exceeded. The event is not generated  
again until the threshold value has returned within the boundaries and then once again exceeded  
them. For example, if the switch temperature exceeds the upper boundary, a triggered event is  
generated at the point the boundary is crossed, but is not repeated while the temperature remains  
above the upper boundary.  
The following events can be generated as triggered events:  
Started  
Below  
No alarm is generated.  
Counter is below the lower boundary. Must be preceded by a start, above, or in-  
between event.  
Above  
Counter is above the upper boundary. Must be preceded by a start, below, or in-  
between event.  
Exceeded  
Counter is below the lower boundary or above the upper boundary. Accompanies  
a below or above event.  
Changed  
Counter value has changed.  
In-between  
Counter falls below the upper boundary minus buffer, or rises above the lower  
boundary plus buffer. Must be preceded by an above or below event. If the buffer  
is set to zero, this event is suppressed.  
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Continuous Events  
A continuous event results in an event at each time interval from when the boundary is initially  
exceeded until the threshold value has returned within the boundaries. For example, if port  
utilization is above the upper boundary, a new event is generated at each behavior interval until  
utilization falls below the upper boundary. The following events can be generated as continuous  
events:  
Started  
Below  
No alarm is generated.  
Counter is below the lower boundary.  
Counter is above the upper boundary.  
Above  
Exceeded  
Counter is below the lower boundary or above the upper boundary.  
Accompanies a below or above event.  
Changed  
Counter value has changed.  
Alarms  
Each event can generate one or more alarms. Fabric Watch supports the following types of alarms:  
SNMP trap  
Switch event log entry  
Locking of the port log  
RAN  
Email  
SNMP Trap  
The following information is forwarded to an SNMP management station:  
Name of the element  
Class, area, and index of the threshold  
Type of event generated  
Element value  
New state of element  
Error Log Entry  
The internal error log maintains a record of the event, up to a maximum of 64 entries. If configured  
to do so, error log entries are forwarded to the SYSLOGD facility.  
Locking the Port Log  
Locking the Port Log freezes the switch port log to retain detail information about a problem. It is  
typically used in conjunction with the error log entry.  
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RAN  
RAJ sends alarm messages to the remote agent proxy server.  
Note: The RAN alert is only available if the optional Fabric Access license has been purchased  
and turned on.  
Email Alert  
The Email Alert sends alarms to the corresponding email addresses at run time. The configured  
email address applies to all areas within a class. See fwMailCfg in the Fabric OS Reference Guide.  
Note: This alert only works with firmware images that supports Web Tools.  
Note: Whenever the switch is fastbooted or rebooted the Email alert is disabled. The Email Alert  
must be reset after the switch is fastbooted or rebooted.  
Configuring Thresholds and Alarms  
The configuration of thresholds and alarms can be divided into two categories: threshold values and  
threshold area values.  
Note: Timebase changes to thresholds in Env and GBIC agents are disabled. Non-factory  
timebase settings in configuration files for both of these thresholds will not have any effect.  
The factory timebase will be used.  
Threshold Values  
Threshold values apply to the specific threshold. They are not stored in the configuration file, and  
return to the default values if the switch is rebooted. The following threshold values can be  
modified:  
Status  
Can be enabled or disabled. Enabled by default.  
Behavior type  
Allows setting of the event policy to triggered or continuous. Set to  
triggered by default.  
Behavior interval  
The interval between the same type of alarm. Applies only to  
continuous events. The default interval is 1 second.  
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Threshold Area Values  
Threshold area values include boundaries and alarms, and apply to all the thresholds within an area.  
Changes are stored in the configuration file.  
Boundaries  
The following boundary information can be modified:  
Unit string  
Represents unit value. Only the default unit strings are supported by  
Fabric Watch.  
Time base  
Time period within which a specified event is measured. Can be  
from one second to one day. Shorter time periods are more sensitive  
to fluctuations and therefore will provide more detailed  
information.  
Note: The Time base boundary can only be modified through a  
telnet command. The Time base bounder does not apply to  
the:  
- Transmit performance area  
- Receive performance area  
- Filter class  
Low boundary  
High boundary  
Buffer size  
Minimum value. An event is generated if the element value falls  
below this boundary.  
Maximum value. An event is generated if the element value rises  
above this boundary.  
Size of buffer set up to decrease generation of in-between events  
due to oscillation of the element value over a boundary.  
Alarms  
The following alarms can be added or deleted:  
ERRLOG  
Logs errors to switch. If configured properly, sends message to  
syslog on daemon.  
SNMP-TRAP  
Sends trap to SNMP agent.  
PORT-LOG-LOCK  
Freezes port log to preserve log information generated at time of  
event, for diagnostic purposes.  
RAN  
Sends alarm messages to remote agent.  
Note: The RAN alert is only available if the optional Fabric Access  
license has been purchased and turned on.  
Email Alert  
Sends alarm messages to the corresponding mail address.  
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Appendix  
Example Error Message  
A
This appendix provides an example Errlog message.  
Overview  
Figure A-1 shows a typical Fabric Watch Errlog message.  
Threshold  
Names  
Threshold  
Labels  
Severity of Error  
Message  
Index  
Numbers  
3 = Warning  
4= Informational  
0x1003f2d0 (tThad): May 22 19:20:23  
Error FW BELOW- , 3, fopportState003  
(
3 ) is below low boundary  
Change(s)/minute. (normal)  
. current value : 0  
0x1003f2d0 (tThad): May 22 19:13:57  
(
) is above high boundary.  
Error FW ABOV-E, 3, fopportCRCs007  
7
)
current value : 5 Error(s)/minute. (  
faulty  
0x1003f2d0 (tThad): May 22 17:31:33  
Error FW-ABOVE, 3, fopportSync003  
value : 3 Error(s)/minute. (faulty)  
(
) is above high boundary. current  
) is above high boundary.  
3
0x1003f2d0 (tThad): May 22 17:31:33  
-
Error FW ABOVE, 3, fopportLink003  
3
current value : 1 Error(s)/minute  
(faulty)  
-
0x1003f2d0 (tThad): May 22 17:31:33  
(
Error FW CHANGED, 4, fabricFL000  
4
) value has changed. current  
-
value : 23 Login(s). (info)  
0x1003f2d0 (tThad): May 22 17:17:33  
Error FW ABOVE, 3, alpaPerfCRC004  
(faulty)  
4) is above high boundary.  
States  
Figure A-1 Typical Fabric Watch Errlog Message  
Fabric Watch Users Guide  
A-1  
 
   
A
Example Error Message  
Note: Threshold name = class name + area name + element index.  
Example: FopportLink003, fabricFL000, alpaPerfCRC004  
Example 1:  
class name = env,  
area name = Fan,  
element index = 000-002  
threshold name is envFan000 envFan002  
Example 2:  
class name = gbic,  
area name = Temp  
element index = 001-00x  
threshold name is gbicTemp001-gbicTemp00x  
Table A-1 Fabric Watch Threshold Class / Area Abbreviation Table  
Class name: class abbreviation  
Area name: area abbreviation  
Environment: env  
Power supply: PS  
Temperature (sensor): Temp  
Fan speed sensor: Fan  
Temperature (sensor): Temp  
Receiver power: RXP  
Transmitter power: TXP  
Current: Crnt  
Gigabit Interface Converter: gbic  
A-2  
Fabric Watch Users Guide  
 
A
Example Error Message  
Expansion port: eport  
Port: port  
Invalid CRCs: CRCs  
Link Failures: Link  
Fabric copper port: fcuport  
Fabric optical port: fopport  
Protocol Errors: ProtoErr  
RX Performance: RXPerf  
Loss of Signal: Signal  
State Changes: State  
Loss of Sync: Sync  
TX Performance: TXPerf  
Invalid Words: Words  
Domain ID: DI  
Fabric: fabric  
E-port down: ED  
Fabric login: FL  
Fabric<->QL: FQ  
Reconfigure: FR  
GBIC change: GS  
Segmentation: SC  
Zoning change: ZC  
Name server login: NL  
Name server request: NR  
Invalid CRCs: PerfCRC  
Invalid CRCs: PerfCRC  
TX Performance: PerfTX  
RX Performance: PerfRX  
Filter frame counter: PerfPT  
Performance alpa monitor: alpa  
Performance end to end monitor: EE  
Performance filter monitor: filter  
Fabric Watch Users Guide  
A-3  
 
A
Example Error Message  
A-4  
Fabric Watch Users Guide  
 
Glossary  
8b/10b  
Encoding  
An encoding scheme that converts each 8-bit byte into 10 bits. Used to balance  
ones and zeros in high-speed transports.  
Address  
Identifier  
A 24-bit or 8-bit value used to identify the source or destination of a frame.  
AL_PA  
Arbitrated Loop Physical Address; a unique 8-bit value assigned during loop  
initialization to a port in an arbitrated loop.  
Alias Address  
Identifier  
An address identifier recognized by a port in addition to its standard identifier. An  
alias address identifier may be shared by multiple ports.  
Alias AL_PA  
An AL_PA value recognized by an L_Port in addition to the AL_PA assigned to  
the port. See also AL_PA.  
Alias Server  
ANSI  
A fabric software facility that supports multicast group management.  
American National Standards Institute; the governing body for fibre channel  
standards in the U.S.A.  
API  
Application Programming Interface; defined protocol that allows applications to  
interface with a set of services.  
Arbitrated  
Loop  
A shared 100 MBps fibre channel transport structured as a loop. Can support up  
to 126 devices and one fabric attachment. See also Topology.  
ASIC  
ATM  
Application Specific Integrated Circuit.  
Asynchronous Transfer Mode; a transport used for transmitting data over LANs  
or WANs that transmit fixed-length units of data. Provides any-to-any  
connectivity, and allows nodes to transmit simultaneously.  
AW_TOV  
Arbitration Wait Time-out Value; the minimum time an arbitrating L_Port waits  
for a response before beginning loop initialization.  
Bandwidth  
The total transmission capacity of a cable, link, or system. Usually measured in  
bps (bits per second). May also refer to the range of transmission frequencies  
available to a network. See also Throughput.  
BB_Credit  
Buffer-to-buffer credit; the number of frames that can be transmitted to a directly  
connected recipient or within an arbitrated loop. Determined by the number of  
receive buffers available. See also Buffer-to-buffer Flow Control, EE_Credit.  
Beginning  
Running  
Disparity  
The disparity at the transmitter or receiver when the special character associated  
with an ordered set is encoded or decoded. See also Disparity.  
BER  
Bit Error Rate; the rate at which bits are expected to be received in error.  
Expressed as the ratio of error bits to total bits transmitted. See also Error.  
Block  
As applies to fibre channel, upper-level application data that is transferred in a  
single sequence.  
Fabric Watch Users Guide  
Glossary-1  
 
 
Broadcast  
The transmission of data from a single source to all devices in the fabric,  
regardless of zoning. See also Multicast, Unicast.  
Brocade®  
Distributed  
Fabrics  
The combined manual for the software products Brocade Extended Fabrics and  
Brocade Remote Switch (Distributed Fabricsis not a software product). See  
also Brocade Extended Fabrics, Brocade Remote Switch.  
Brocade  
Extended  
FabricsTM  
A Brocade product that runs on Fabric OS and allows creation of a fibre channel  
fabric interconnected over distances of up to 100 kilometers. See also Brocade  
Distributed Fabrics.  
Brocade Fabric  
AccessTM  
A Brocade product that consists of a set of APIs that allow third party applications  
to interface with Fabric OS.  
Brocade Fabric  
AssistTM  
A Brocade feature that enables private and public hosts to access public targets  
anywhere on the fabric, provided they are in the same Fabric Assist zone. This  
feature is available only when both Brocade QuickLoop and Brocade Zoning are  
installed on the switch.  
Brocade Fabric  
ManagerTM  
A Brocade product that works in conjunction with Web Tools to provide a  
graphical user interface for managing switch groups (such as the SilkWorm 6400)  
as a single unit, instead of as separate switches. Fabric Manager is installed on  
and run from a computer workstation.  
Brocade Fabric  
WatchTM  
A Brocade product that runs on Fabric OS and allows monitoring and  
configuration of fabric and switch elements.  
Brocade ISL  
TrunkingTM  
A Brocade feature that enables distribution of traffic over the combined  
bandwidth of up to four ISLs (between adjacent switches), while preserving in-  
order delivery. A set of trunked ISLs is called a trunking group; each port  
employed in a trunking group is called a trunking port. See also Master Port.  
Brocade  
Performance  
MonitoringTM  
A Brocade product that provides error and performance information to the  
administrator and end user for use in storage management.  
Brocade  
QuickLoopTM  
A Brocade product that makes it possible to allow private devices within loops to  
communicate with public and private devices across the fabric through the  
creation of a larger loop.  
May also refer to the arbitrated loop created using this software. A QuickLoop  
can contain a number of devices or looplets; all devices in the same QuickLoop  
share a single AL_PA space.  
Brocade  
Remote  
SwitchTM  
A Brocade product that runs on Fabric OS and enables two SilkWorm 2000 fabric  
switches to be connected over an ATM (asynchronous transfer mode) connection.  
This requires a compatible fibre channel to ATM gateway, and can have a distance  
of up to 10 kilometers between each switch and the respective ATM gateway. See  
also Brocade Distributed Fabrics.  
Brocade SESTM A Brocade product that runs on Fabric OS and allows monitoring, configuring,  
and maintenance of the Brocade SilkWorm Switch family using SCSI-3  
Enclosure Services.  
Brocade Web  
ToolsTM  
A Brocade product that runs on Fabric OS and provides a graphical interface to  
allow monitoring and management of individual switches or entire fabrics from a  
standard workstation.  
Glossary-2  
Fabric Watch Users Guide  
 
Brocade  
ZoningTM  
A Brocade product that runs on Fabric OS and allows partitioning of the fabric  
into logical groupings of devices. Devices in a zone can only access and be  
accessed by devices in the same zone. See also Zone.  
Buffer-to-buffer  
Flow Control  
Management of the frame transmission rate in either a point-to-point topology or  
in an arbitrated loop. See also BB_Credit.  
Cascade  
Two or more interconnected fibre channel switches. SilkWorm 2000 switches can  
be cascaded up to 239 switches, with a recommended maximum of seven  
interswitch links (no path longer than eight switches). See also Fabric, ISL.  
Chassis  
Circuit  
The metal frame in which the switch and switch components are mounted.  
An established communication path between two ports. Consists of two virtual  
circuits capable of transmitting in opposite directions. See also Link.  
Class 1  
Class 2  
Class 3  
Service that provides a dedicated connection between two ports (also called  
connection-oriented service), with notification of delivery or nondelivery.  
Service that provides multiplex and connectionless frame switching service  
between two ports, with notification of delivery or nondelivery.  
Service that provides a connectionless frame switching service between two ports,  
without notification of delivery or nondelivery of data. Can also be used to  
provide a multicast connection between the originator and recipients, with  
notification of delivery or nondelivery.  
Class F  
Connectionless service for control traffic between switches, with notification of  
delivery or nondelivery of data between the E_Ports.  
Class of  
Service  
A specified set of delivery characteristics and attributes for frame delivery.  
Comma  
A unique pattern (either 1100000 or 0011111) used in 8B/10B encoding to specify  
character alignment within a data stream. See also K28.5.  
Community  
(SNMP)  
A relationship between a group of SNMP managers and an SNMP agent, in which  
authentication, access control, and proxy characteristics are defined. See also  
SNMP.  
CRC  
Cyclic Redundancy Check; a check for transmission errors included in every data  
frame.  
Credit  
As applies to fibre channel, the number of receive buffers available for  
transmission of frames between ports. See also BB_Credit, EE_Credit.  
Cut-through  
Data Word  
A switching technique that allows the route for a frame to be selected as soon as  
the destination address is received. See also Route.  
Type of transmission word that occurs within frames. The frame header, data  
field, and CRC all consist of data words. See also Frame, Ordered set,  
Transmission Word.  
Defined Zone  
Configuration  
The set of all zone objects defined in the fabric. May include multiple zone  
configurations. See also Enabled Configuration, Zone Configuration.  
Disparity  
The relationship of ones and zeros in an encoded character. Neutral disparity”  
means an equal number of each, positive disparitymeans a majority of ones,  
and negative disparitymeans a majority of zeros.  
DLS  
Dynamic Load Sharing; dynamic distribution of traffic over available paths.  
Allows for recomputing of routes when an Fx_Port or E_Port changes status.  
Fabric Watch Users Guide  
Glossary-3  
 
Domain ID  
E_D_TOV  
As applies to SilkWorm switches, a unique number between 1 and 239 that  
identifies the switch to the fabric and is used in routing frames. Usually  
automatically assigned by the switch, but can be manually assigned.  
Error Detect Time-out Value; the minimum amount of time a target waits for a  
sequence to complete before initiating recovery. Can also be defined as the  
maximum time allowed for a round-trip transmission before an error condition is  
declared. See also R_A_TOV, RR_TOV.  
E_Port  
Expansion Port; a type of switch port that can be connected to an E_Port on  
another switch to create an ISL. See also ISL.  
EE_Credit  
End-to-end Credit; the number of receive buffers allocated by a recipient port to  
an originating port. Used by Class 1 and 2 services to manage the exchange of  
frames across the fabric between source and destination. See also End-to-end  
Flow Control, BB_Credit.  
EIA Rack  
A storage rack that meets the standards set by the Electronics Industry  
Association.  
Enabled Zone  
Configuration  
The currently enabled configuration of zones. Only one configuration can be  
enabled at a time. See also Defined Configuration, Zone Configuration.  
End-to-end  
Governs flow of class 1 and 2 frames between N_Ports. See also EE_Credit.  
Flow Control  
Error  
As applies to fibre channel, a missing or corrupted frame, time-out, loss of  
synchronization, or loss of signal (link errors). See also Loop Failure.  
Exchange  
The highest level fibre channel mechanism used for communication between  
N_Ports. Composed of one or more related sequences, and can work in either one  
or both directions.  
F_Port  
Fabric  
Fabric Port; a port that is able to transmit under fabric protocol and interface over  
links. Can be used to connect an N_Port to a switch. See also FL_Port, Fx_Port.  
A fibre channel network containing two or more switches in addition to hosts and  
devices. May also be referred to as a switched fabric. See also Topology, SAN,  
Cascade.  
Fabric Name  
The unique identifier assigned to a fabric and communicated during login and  
port discovery.  
Fabric OSTM  
FC-AL-3  
The proprietary operating system on Brocade switches.  
The Fibre Channel Arbitrated Loop standard defined by ANSI. Defined on top of  
the FC-PH standards.  
FC-FLA  
FCP  
The Fibre Channel Fabric Loop Attach standard defined by ANSI.  
Fibre Channel Protocol; mapping of protocols onto the fibre channel standard  
protocols. For example, SCSI FCP maps SCSI-3 onto fibre channel.  
FC-PH-1, 2, 3  
FC-PI  
The Fibre Channel Physical and Signalling Interface standards defined by ANSI.  
The Fibre Channel Physical Interface standard defined by ANSI.  
FC-PLDA  
The Fibre Channel Private Loop Direct Attach standard defined by ANSI. Applies  
to the operation of peripheral devices on a private loop.  
Glossary-4  
Fabric Watch Users Guide  
 
FC-SW-2  
The second generation of the Fibre Channel Switch Fabric standard defined by  
ANSI. Specifies tools and algorithms for the interconnection and initialization of  
fibre channel switches in order to create a multi-switch fibre channel fabric.  
Fibre Channel  
Transport  
A protocol service that supports communication between fibre channel service  
providers. See also FSP.  
Fill Word  
An IDLE or ARB ordered set that is transmitted during breaks between data  
frames to keep the fibre channel link active.  
Firmware  
FL_Port  
The basic operating system provided with the hardware.  
Fabric Loop Port; a port that is able to transmit under fabric protocol and also has  
arbitrated loop capabilities. Can be used to connect an NL_Port to a switch. See  
also F_Port, Fx_Port.  
FLOGI  
Frame  
Fabric Login; the process by which an N_Port determines whether a fabric is  
present, and if so, exchanges service parameters with it. See also PLOGI.  
The fibre channel structure used to transmit data between ports. Consists of a  
start-of-frame delimiter, header, any optional headers, the data payload, a cyclic  
redundancy check (CRC), and an end-of-frame delimiter. There are two types of  
frames: Link control frames (transmission acknowledgements, etc.) and data  
frames.  
FRU  
FS  
Field-replaceable Unit; a component that can be replaced on site.  
Fibre Channel Service; a service that is defined by fibre channel standards and  
exists at a well-known address. For example, the Simple Name Server is a fibre  
channel service. See also FSP.  
FSP  
Fibre Channel Service Protocol; the common protocol for all fabric services,  
transparent to the fabric type or topology. See also FS.  
FSPF  
Fabric Shortest Path First; Brocades routing protocol for fibre channel switches.  
Full-duplex  
A mode of communication that allows the same port to simultaneously transmit  
and receive frames. See also Half-duplex.  
Fx_Port  
G_Port  
A fabric port that can operate as either an F_Port or FL_Port. See also F_Port,  
FL_Port.  
Generic Port; a port that can operate as either an E_Port or F_Port. A port is  
defined as a G_Port when it is not yet connected or has not yet assumed a specific  
function in the fabric.  
GBIC  
Gigabit Interface Converter; a removable serial transceiver module that allows  
gigabaud physical-level transport for fibre channel and gigabit ethernet.  
Gbps  
Gigabits per second (1,062,500,000 bits/second).  
GigaBytes per second (1,062,500,000 bytes/second).  
GBps  
Half-duplex  
A mode of communication that allows a port to either transmit or receive frames  
at any time, but not simultaneously (with the exception of link control frames,  
which can be transmitted at any time). See also Full-duplex.  
Hard Address  
HBA  
The AL_PA that an NL_Port attempts to acquire during loop initialization.  
Host Bus Adapter; the interface card between a server or workstation bus and the  
fibre channel network.  
Fabric Watch Users Guide  
Glossary-5  
 
Hub  
A fibre channel wiring concentrator that collapses a loop topology into a physical  
star topology. Nodes are automatically added to the loop when active and  
removed when inactive.  
Idle  
Continuous transmission of an ordered set over a fibre channel link when no data  
is being transmitted, to keep the link active and maintain bit, byte, and word  
synchronization.  
Initiator  
A server or workstation on a fibre channel network that initiates communications  
with storage devices. See also Target.  
Integrated  
Fabric  
The fabric created by a SilkWorm 6400, consisting of six SilkWorm 2250  
switches cabled together and configured to handle traffic as a seamless group.  
IOD  
ISL  
In-order Delivery; a parameter that, when set, guarantees that frames are either  
delivered in order or dropped.  
Interswitch Link; a fibre channel link from the E_Port of one switch to the E_Port  
of another. See also E_Port, Cascade.  
Isolated  
E_Port  
An E_Port that is online but not operational due to overlapping domain IDs or  
nonidentical parameters (such as E_D_TOVs). See also E_Port.  
IU  
Information Unit; a set of information as defined by either upper-level process  
protocol definition or upper-level protocol mapping.  
JBOD  
K28.5  
Just a Bunch Of Disks; indicates a number of disks connected in a single chassis  
to one or more controllers. See also RAID.  
A special 10-bit character used to indicate the beginning of a transmission word  
that performs fibre channel control and signaling functions. The first seven bits of  
the character are the comma pattern. See also Comma.  
L_Port  
Loop Port; a node port (NL_Port) or fabric port (FL_Port) that has arbitrated loop  
capabilities. An L_Port can be in one of two modes:  
Fabric mode Connected to a port that is not loop capable, and using fabric  
protocol.  
Loop mode In an arbitrated loop and using loop protocol. An L_Port in loop  
mode can also be in participating mode or non-participating mode.  
See also Non-participating Mode, Participating Mode.  
Latency  
Link  
The period of time required to transmit a frame, from the time it is sent until it  
arrives.  
As applies to fibre channel, a physical connection between two ports, consisting  
of both transmit and receive fibres. See also Circuit.  
Link Services  
LIP  
A protocol for link-related actions.  
Loop Initialization Primitive; the signal used to begin initialization in a loop.  
Indicates either loop failure or resetting of a node.  
LM_TOV  
Loop Master Time-out Value; the minimum time that the loop master waits for a  
loop initialization sequence to return.  
Loop Failure  
Loss of signal within a loop for any period of time, or loss of synchronization for  
longer than the time-out value.  
Loop  
Initialization  
The logical procedure used by an L_Port to discover its environment. Can be used  
to assign AL_PA addresses, detect loop failure, or reset a node.  
Glossary-6  
Fabric Watch Users Guide  
 
Loop_ID  
A hex value representing one of the 127 possible AL_PA values in an arbitrated  
loop.  
Looplet  
LPSM  
A set of devices connected in a loop to a port that is a member of another loop.  
Loop Port State Machine; the logical entity that performs arbitrated loop  
protocols and defines the behavior of L_Ports when they require access to an  
arbitrated loop.  
LWL  
Long Wavelength; a type of fiber optic cabling that is based on 1300mm lasers  
and supports link speeds of 1.0625 Gbps. May also refer to the type of GBIC or  
SFP. See also SWL.  
Master Port  
As relates to trunking, the port that determines the routing paths for all traffic  
flowing through the trunking group. One of the ports in the first ISL in the  
trunking group is designated as the master port for that group. See also Brocade  
ISL Trunking.  
MIB  
Management Information Base; an SNMP structure to help with device  
management, providing configuration and device information.  
Multicast  
The transmission of data from a single source to multiple specified N_Ports (as  
opposed to all the ports on the network). See also Broadcast, Unicast.  
Multimode  
N_Port  
A fiber optic cabling specification that allows up to 500 meters between devices.  
Node Port; a port on a node that can connect to a fibre channel port or to another  
N_Port in a point-to-point connection. See also NL_Port, Nx_Port.  
Name Server  
NL_Port  
Frequently used to indicate Simple Name Server. See also SNS.  
Node Loop Port; a node port that has arbitrated loop capabilities. Used to connect  
an equipment port to the fabric in a loop configuration through an FL_Port. See  
also N_Port, Nx_Port.  
Node  
A fibre channel device that contains an N_Port or NL_Port.  
Node Name  
The unique identifier for a node, communicated during login and port discovery.  
Non-  
participating  
Mode  
A mode in which an L_Port in a loop is inactive and cannot arbitrate or send  
frames, but can retransmit any received transmissions. This mode is entered if  
there are more than 127 devices in a loop and an AL_PA cannot be acquired. See  
also L_Port, Participating Mode.  
Nx_Port  
A node port that can operate as either an N_Port or NL_Port.  
Ordered Set  
A transmission word that uses 8B/10B mapping and begins with the K28.5  
character. Ordered sets occur outside of frames, and include the following items:  
Frame delimiters Mark frame boundaries and describe frame contents.  
Primitive signals Indicate events.  
Primitive sequences Indicate or initiate port states.  
Ordered sets are used to differentiate fibre channel control information from data  
frames and to manage the transport of frames.  
Packet  
A set of information transmitted across a network. See also Frame.  
Participating  
Mode  
A mode in which an L_Port in a loop has a valid AL_PA and can arbitrate, send  
frames, and retransmit received transmissions. See also L_Port, Non-  
participating Mode.  
Fabric Watch Users Guide  
Glossary-7  
 
Path Selection  
The selection of a transmission path through the fabric. Brocade switches use the  
FSPF protocol.  
Phantom  
Address  
An AL_PA value that is assigned to an device that is not physically in the loop.  
Also known as phantom AL_PA.  
Phantom  
Device  
A device that is not physically in an arbitrated loop but is logically included  
through the use of a phantom address.  
PLOGI  
Port Login; the port-to-port login process by which initiators establish sessions  
with targets. See also FLOGI.  
Point-to-point  
Port_Name  
POST  
A fibre channel topology that employs direct links between each pair of  
communicating entities. See also Topology.  
The unique identifier assigned to a fibre channel port. Communicated during  
login and port discovery.  
Power On Self-Test; a series of tests run by a switch after it is turned on.  
Private  
NL_Port  
An NL_Port that communicates only with other private NL_Ports in the same  
loop and does not log into the fabric.  
Private Device  
A device that supports arbitrated loop protocol and can interpret 8-bit addresses,  
but cannot log into the fabric.  
Private Loop  
Protocol  
An arbitrated loop that does not include a participating FL_Port.  
A defined method and a set of standards for communication.  
Public  
NL_Port  
An NL_Port that logs into the fabric, can function within either a public or a  
private loop, and can communicate with either private or public NL_Ports.  
Public Device  
Public Loop  
R_A_TOV  
RAID  
A device that supports arbitrated loop protocol, can interpret 8-bit addresses, and  
can log into the fabric.  
An arbitrated loop that includes a participating FL_Port, and may contain both  
public and private NL_Ports.  
Resource Allocation Time-out Value; the maximum time a frame can be delayed  
in the fabric and still be delivered. See also E_D_TOV, RR_TOV.  
Redundant Array of Independent Disks; a collection of disk drives that appear as  
a single volume to the server and are fault tolerant through mirroring or parity  
checking. See also JBOD.  
Request Rate  
Route  
The rate at which requests arrive at a servicing entity. See also Service Rate.  
As applies to a fabric, the communication path between two switches. May also  
apply to the specific path taken by an individual frame, from source to  
destination. See also FSPF.  
Routing  
RR_TOV  
The assignment of frames to specific switch ports, according to frame destination.  
Resource Recovery Time-out Value; the minimum time a target device in a loop  
waits after a LIP before logging out a SCSI initiator. See also E_D_TOV,  
R_A_TOV.  
RSCN  
SAN  
Registered State Change Notification; a switch function that allows notification of  
fabric changes to be sent from the switch to specified nodes.  
Storage Area Network; a network of systems and storage devices that  
communicate using fibre channel protocols. See also Fabric.  
Glossary-8  
Fabric Watch Users Guide  
 
Sequence  
Service Rate  
SFP  
A group of related frames transmitted in the same direction between two N_Ports.  
The rate at which an entity can service requests. See also Request Rate.  
Small Form Factor Pluggable; optical transceiver used to convert signals between  
optical fiber cables and switches.  
SI  
Sequence Initiative.  
SilkWorm  
Single Mode  
The brand name for Brocades family of switches  
The fiber optic cabling standard that corresponds to distances of up to 10 km  
between devices.  
SNMP  
Simple Network Management Protocol. An internet management protocol that  
uses either IP for network-level functions and UDP for transport-level functions,  
or TCP/IP for both. Can be made available over other protocols, such as UDP/IP,  
because it does not rely on the underlying communication protocols. See also  
Community (SNMP).  
SNS  
Simple Name Server; a switch service that stores names, addresses, and attributes  
for up to 15 minutes, and provides them as required to other devices in the fabric.  
SNS is defined by fibre channel standards and exists at a well-known address.  
May also be referred to as directory service. See also FS.  
Switch  
Hardware that routes frames according to fibre channel protocol and is controlled  
by software.  
Switch Name  
Switch Port  
SWL  
The arbitrary name assigned to a switch.  
A port on a switch. Switch ports can be E_Ports, F_Ports, or FL_Ports.  
Short Wavelength; a type of fiber optic cabling that is based on 850mm lasers and  
supports 1.0625 Gbps link speeds. May also refer to the type of GBIC or SFP. See  
also LWL.  
Target  
A storage device on a fibre channel network. See also Initiator.  
Tenancy  
The time from when a port wins arbitration in a loop until the same port returns to  
the monitoring state. Also referred to as loop tenancy.  
Throughput  
Topology  
The rate of data flow achieved within a cable, link, or system. Usually measured  
in bps (bits per second). See also Bandwidth.  
As applies to fibre channel, the configuration of the fibre channel network and the  
resulting communication paths allowed. There are three possible topologies:  
Point to point - A direct link between two communication ports.  
Switched fabric - Multiple N_Ports linked to a switch by F_Ports.  
Arbitrated loop - Multiple NL_Ports connected in a loop.  
Translative  
Mode  
A mode in which private devices can communicate with public devices across the  
fabric.  
Transmission  
Character  
A 10-bit character encoded according to the rules of the 8B/10B algorithm.  
Transmission  
Word  
A group of four transmission characters.  
Trap (SNMP)  
The message sent by an SNMP agent to inform the SNMP management station of  
a critical error. See also SNMP.  
Fabric Watch Users Guide  
Glossary-9  
 
Tunneling  
U_Port  
A technique for enabling two networks to communicate when the source and  
destination hosts are both on the same type of network, but are connected by a  
different type of network.  
Universal Port; a switch port that can operate as a G_Port, E_Port, F_Port, or  
FL_Port. A port is defined as a U_Port when it is not connected or has not yet  
assumed a specific function in the fabric.  
UDP  
User Datagram Protocol; a protocol that runs on top of IP and provides port  
multiplexing for upper-level protocols.  
ULP  
Upper-level Protocol; the protocol that runs on top of fibre channel. Typical  
upper-level protocols are SCSI, IP, HIPPI, and IPI.  
ULP_TOV  
Unicast  
Upper-level Time-out Value; the minimum time that a SCSI ULP process waits  
for SCSI status before initiating ULP recovery.  
The transmission of data from a single source to a single destination. See also  
Broadcast, Multicast.  
Well-known  
Address  
As pertaining to fibre channel, a logical address defined by the fibre channel  
standards as assigned to a specific function, and stored on the switch.  
Workstation  
WWN  
A computer used to access and manage the fabric. May also be referred to as a  
management station or host.  
Worldwide Name; an identifier that is unique worldwide. Each entity in a fabric  
has a separate WWN.  
Zone  
A set of devices and hosts attached to the same fabric and configured as being in  
the same zone. See also Brocade Zoning. Devices and hosts within the same zone  
have access permission to others in the zone, but are not visible to any outside the  
zone.  
Zone  
A specified set of zones. Enabling a configuration enables all zones in that  
Configuration  
configuration. See also Defined Configuration, Enabled Configuration.  
Glossary-10  
Fabric Watch Users Guide  
 
Index  
A
E
alarms  
E_Port class 3-5  
Environmental class 3-5  
error log entry 3-10  
events  
adding or deleting 3-11  
configuring 3-10  
error log entry 3-10  
locking port log 3-10  
SNMP trap 3-9  
continuous 3-9  
definition of 1-1  
discussion of 3-8  
triggered 3-8  
B
boundaries  
F
definition of 1-1  
modifying 3-11  
F/FL_Port (copper) class 3-6  
F/FL_Port (optical) class 3-6  
Fabric class 3-4  
BROCADE WEB TOOLS  
installing by 2-2  
using to access Fabric Watch 3-1  
C
G
change monitor thresholds 1-4  
classes  
GBIC (FINISAR Smart GBIC) class 3-7  
definition of 3-3  
list of classes and areas 3-3  
classes with list of areas  
I
installation 2-1  
E_Port 3-5  
Environmental 3-5  
F/FL_Port (copper) 3-6  
F/FL_Port (optical) 3-6  
Fabric 3-4  
GBIC (FINISAR Smart GBIC) 3-7  
Port 3-5  
by BROCADE WEB TOOLS 2-2  
by telnet 2-1  
K
configuring  
key, license 2-1  
modifying the configuration file 3-2  
thresholds and alarms 3-10  
continuous events 3-9  
L
license key 2-1  
locking of port log 3-10  
Fabric Watch Users Guide  
Index-1  
 
 
P
Port class 3-5  
profiles  
availability of customized profiles 3-3  
definition 3-2  
R
range thresholds 1-2  
requirements, Fabric Watch 1-1  
rising/falling thresholds 1-3  
S
SNMP  
using to access Fabric Watch 3-2  
SNMP trap 3-9  
support, technical iv  
supportShow telnet command iv  
T
technical support iv  
telnet  
accessing Fabric Watch by 3-2  
installing by 2-1  
telnet commands  
supportShow iv  
thresholds  
behavior models 1-2  
change monitor 1-4  
configuring 3-10  
definition of 1-1  
naming conventions 3-8  
range thresholds 1-2  
rising/falling thresholds 1-3  
triggered events 3-8  
U
user interfaces 3-1  
Index-2  
Fabric Watch Users Guide  
 
 

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