Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 94

FC Services
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
%FSPF-3-BAD_FC2_PKT: %$VSAN 200%$ Received bad FC2 packet on interface san-port-channel
<channel-id>
Solution
To identify a region mismatch problem on a switch using the NX-OS CLI, perform the following.
Use the show fspf vsan <vsan-id> command to display the currently configured region in a VSAN.
Step 1
Example (region value is 2; default region value is 0):
switch# show fspf vsan 200
FSPF routing for VSAN 200
FSPF routing administration status is enabled
FSPF routing operational status is UP
It is an intra-domain router
Autonomous region is 2
SPF hold time is 0 msec
MinLsArrival = 1000 msec , MinLsInterval = 2000 msec
Local Domain is 0x22(34)
Number of LSRs = 1, Total Checksum = 0x00000c10
Protocol constants :
LS_REFRESH_TIME = 30 minutes (1800 sec)
MAX_AGE
Statistics counters :
Number of LSR that reached MaxAge = 0
Number of SPF computations
Number of Checksum Errors
Number of Transmitted packets :
Number of received packets :
Use the debug fspf all command and look for nonexistent region messages.
Step 2
Example:
fspf: Hello timer reached for interface san-port-channel 200 in VSAN 200
fspf: FC2 packet received for non existant region 0 in VSAN 200
fspf: FC2 packet received for non existant region 0 in VSAN 200
The neighboring switch-advertising region is 0. FSPF is in the init state for each ISL.
Example:
switch# show fspf vsan 200 interface san-port-channel 200
FSPF interface san-port-channel 200 in VSAN 200
FSPF routing administrative state is active
Interface cost is 125
Timer intervals configured, Hello 20 s, Dead 80 s, Retransmit 5 s
FSPF State is INIT
Statistics counters :
Number of packets received : LSU
Number of packets transmitted : LSU
Number of times inactivity timer expired for the interface = 9
Use the undebug all command to turn off debugging.
Step 3
Use the show fspf vsan <vsan-id> command to show FSPF configuration and check the autonomous
Step 4
region.
Example:
switch# show fspf vsan 200
Cisco Nexus 5000 Series Troubleshooting Guide
5-22
: Packet received for non existant region in VSAN
= 60 minutes (3600 sec)
LSU 0 LSA 0 Hello 19 Retranmsitted LSU 0
LSU 0 LSA 0 Hello 0 Error packets 18
Chapter 5
= 0
= 0
0 LSA 0 Hello 0 Error packets 0
0 LSA 0 Hello 49
Troubleshooting SAN Switching Issues
Retransmitted LSU 0
OL-25300-01