Cisco Nexus 5000 Series Switch CLI Software Configuration Guide, NX-OS 4.0(1a)N1 (OL-16597-01, January 2009)

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40-4
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 40 Configuring Fibre Channel Routing Services and Protocols
FSPF Global Configuration
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 displays the default settings for switch responses.
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:
Table 40-1 LSR Default Settings
LSR Option Default Description
Acknowledgment
interval (RxmtInterval)
5 seconds The time a switch waits for an acknowledgment from the LSR
before retransmission.
Refresh time
(LSRefreshTime)
30 minutes The time a switch waits before sending an LSR refresh
transmission.
Maximum age (MaxAge) 60 minutes The time a switch waits before dropping the LSR from the
database.
Command Purpose
Step 1
switch# configuration terminal
Enters configuration mode.
Step 2
switch(config)# fspf config vsan vsan-id
Enters FSPF global configuration mode for the
specified VSAN.
Step 3
switch-config-(fspf-config)# spf static
Forces static SPF computation for the dynamic
(default) incremental VSAN.
Step 4
switch-config-(fspf-config)# spf
hold-time value
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.
Step 5
switch-config-(fspf-config)# region
region-id
Configures the autonomous region for this VSAN and
specifies the region ID.