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FSPF Global Configuration
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Table 21-1
PortChannel Scenario
Switch 1
110 ms (~2K frame drops)
100 ms (hold time when a signal loss is reported as mandated by the standard)
Table 21-2
PortChannel Scenario
Switch 1
~0 ms (~8 frame drops) 110 ms (~2K frame drops) 130 ms+ (~4K frame drops)
No hold time needed
FSPF Global Configuration
By default, FSPF is enabled on switches in the Cisco MDS 9000 Family.
Some FSPF features can be globally configured in each VSAN. By configuring a feature for the entire
VSAN, you do not have to specify the VSAN number for every command. This global configuration
feature also reduces the chance of typing errors or other minor configuration errors.
FSPF is enabled by default. Generally, you do not need to configure these advanced features.
Note
Caution
The default for the backbone region is 0 (zero). You do not need to change this setting unless your region
is different from the default. If you are operating with other vendors using the backbone region, you can
change this default to be compatible with those settings.
Global FSPF Configuration
To configure a FSPF feature for the entire VSAN, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fspf config vsan 1
Step 3
switch-config-(fspf-config)# spf static
Cisco MDS 9000 Family Configuration Guide
21-4
Physically Removing the Cable for the SmartBits Scenario
Switch 2
Shutting Down the Switch for the SmartBits Scenario
Switch 2
Signal loss on switch 1
Chapter 21
Configuring Fibre Channel Routing Services and Protocols
FSPF Scenario (Equal cost ISL)
Switch 1
130 ms+ (~4k frame drops)
FSPF Scenario (Equal cost ISL)
Switch 1
No hold time needed
Purpose
Enters configuration mode.
Enters FSPF global configuration mode for the
specified VSAN.
Forces static SPF computation for the dynamic
(default) incremental VSAN.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Switch 2
Switch 2
Signal loss on switch 1
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