Cisco N5K-C5010P-BF Troubleshooting Guide - Page 94

Solution, show fspf vsan, debug fspf all, undebug all, Step 1

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FC Services Chapter 5 Troubleshooting SAN Switching Issues Send document comments to [email protected]. %FSPF-3-BAD_FC2_PKT: %$VSAN 200%$ Received bad FC2 packet on interface san-port-channel : Packet received for non existant region in VSAN Solution To identify a region mismatch problem on a switch using the NX-OS CLI, perform the following. Step 1 Use the show fspf vsan command to display the currently configured region in a VSAN. 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 = 60 minutes (3600 sec) Statistics counters : Number of LSR that reached MaxAge = 0 Number of SPF computations = 0 Number of Checksum Errors = 0 Number of Transmitted packets : LSU 0 LSA 0 Hello 19 Retranmsitted LSU 0 Number of received packets : LSU 0 LSA 0 Hello 0 Error packets 18 Step 2 Use the debug fspf all command and look for nonexistent region messages. 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 0 LSA 0 Hello 0 Error packets 0 Number of packets transmitted : LSU 0 LSA 0 Hello 49 Retransmitted LSU 0 Number of times inactivity timer expired for the interface = 9 Step 3 Step 4 Use the undebug all command to turn off debugging. Use the show fspf vsan command to show FSPF configuration and check the autonomous region. Example: switch# show fspf vsan 200 5-22 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01

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Send document comments to [email protected].
5-22
Cisco Nexus 5000 Series Troubleshooting Guide
OL-25300-01
Chapter 5
Troubleshooting SAN Switching Issues
FC Services
%FSPF-3-BAD_FC2_PKT: %$VSAN 200%$ Received bad FC2 packet on interface san-port-channel
<channel-id>
: Packet received for non existant region in VSAN
Solution
To identify a region mismatch problem on a switch using the NX-OS CLI, perform the following.
Step 1
Use the
show fspf vsan
<vsan-id>
command to display the currently configured region in a VSAN.
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
= 60 minutes (3600 sec)
Statistics counters :
Number of LSR that reached MaxAge = 0
Number of SPF computations
= 0
Number of Checksum Errors
= 0
Number of Transmitted packets :
LSU 0 LSA 0 Hello 19 Retranmsitted LSU 0
Number of received packets :
LSU 0 LSA 0 Hello 0 Error packets 18
Step 2
Use the
debug fspf all
command and look for nonexistent region messages.
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
0
LSA
0
Hello 0
Error packets 0
Number of packets transmitted : LSU
0
LSA
0
Hello 49
Retransmitted LSU
0
Number of times inactivity timer expired for the interface = 9
Step 3
Use the
undebug all
command to turn off debugging.
Step 4
Use the
show fspf vsan
<vsan-id>
command to show FSPF configuration and check the autonomous
region.
Example:
switch# show fspf vsan 200