About Link State Records; Configuring Fspf On A Vsan - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual

FSPF Global Configuration
S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m

About Link State Records

Each time a new switch enters the fabric, a link state record (LSR) is sent to the neighboring switches,
and then flooded throughout the fabric.
Table 40-1
Table 40-1
LSR Option
Acknowledgment
interval (RxmtInterval)
Refresh time
(LSRefreshTime)
Maximum age (MaxAge) 60 minutes The time a switch waits before dropping the LSR from the
The LSR minimum arrival time is the period between receiving LSR updates on this VSAN. Any LSR
updates that arrive before the LSR minimum arrival time are discarded.
The LSR minimum interval time is the frequency at which this switch sends LSR updates on a VSAN.

Configuring FSPF on a VSAN

To configure an FSPF feature for the entire VSAN, perform this task:
Command
Step 1
switch# configuration terminal
Step 2
switch(config)# fspf config vsan vsan-id
Step 3
switch-config-(fspf-config)# spf static
Step 4
switch-config-(fspf-config)# spf
hold-time value
Step 5
switch-config-(fspf-config)# region
region-id
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
40-4
displays the default settings for switch responses.
LSR Default Settings
Default
5 seconds
30 minutes The time a switch waits before sending an LSR refresh
Chapter 40 Configuring Fibre Channel Routing Services and Protocols
Description
The time a switch waits for an acknowledgment from the LSR
before retransmission.
transmission.
database.
Purpose
Enters configuration mode.
Enters FSPF global configuration mode for the
specified VSAN.
Forces static SPF computation for the dynamic
(default) incremental VSAN.
Configures the hold time between two route
computations in milliseconds (msec) for the entire
VSAN. The default value is 0.
Note If the specified time is shorter, the routing is
faster. However, the processor consumption
increases accordingly.
Configures the autonomous region for this VSAN and
specifies the region ID.
OL-16597-01