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11-30
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 11 Troubleshooting VSANs, Domains, and FSPF
FSPF Issues
Timer intervals configured, Hello 20 s, Dead 80 s, Retransmit 5 s <-----1
FSPF State is INIT <-----2
Statistics counters :
Number of packets received : LSU 0 LSA 0 Hello 2 Error packets 1
Number of packets transmitted : LSU 0 LSA 0 Hello 4 Retransmitted LSU 0
Number of times inactivity timer expired for the interface = 0
1. The neighbor FSPF Hello interval is set to the default (20 seconds).
2. FSPF is not in full state, indicating a problem.
Step 6 Use the interface command and then the fspf hello-interval command in interface mode to change the
default Hello interval.
Resolving a Mismatched Retransmit Interval on an ISL Using Device Manager
To resolve a mismatched retransmit interval on an ISL using Device Manager, follow these steps:
Step 1 Choose FC > Advanced > FSPF and select the Interfaces tab to verify that the FSPF parameters are
correct for each interface and check the Retransmit interval column and the State column.
• The Intervals column shows the configured FSPF timers for this interface, which must match on both
sides.
• The State column shows the full or adjacent state if the interface has sent and received all database
exchanges and required Acks. The port is now ready to route frames.
Step 2 Repeat Step 1 to determine the value of the retransmit interval on the adjacent switch.
Step 3 Fill in the Retransmit field to change the retransmit interval and click Apply.
Resolving a Mismatched Retransmit Interval on an ISL Using the CLI
To resolve a mismatched retransmit interval on an ISL using the CLI, follow these steps:
Step 1 Use the show fspf vsan vsan-id interface command to view the FSFP configuration.
switch1# show fspf vsan 1 interface fc1/16
FSPF interface fc1/16 in VSAN 1
FSPF routing administrative state is active
Interface cost is 500
Timer intervals configured, Hello 5 s, Dead 80 s, Retransmit 10 s <-----1
FSPF State is INIT <-----2
Statistics counters :
Number of packets received : LSU 0 LSA 0 Hello 2 Error packets 1
Number of packets transmitted : LSU 0 LSA 0 Hello 4 Retransmitted LSU 0
Number of times inactivity timer expired for the interface = 0
1. The retransmit interval is not set to the default, so you should check the neighbor configuration to
make sure it matches.
2. FSPF is not in FULL state, indicating a problem.
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