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FS#9630 — FS#13486 — gra1-24a-n56

Attached to Project— Network
Incident
GRA-1
CLOSED
100%
The N5 rebooted:

Device name: gra1-24a-n56
bootflash: 7864320 kB

Kernel uptime is 0 day(s), 0 hour(s), 15 minute(s), 0 second(s)

Last reset at 652672 usecs after Sat May 30 17:01:35 2015

Reason: Reset triggered due to HA policy of Reset
System version: 7.0(3)N1(1)
Service: pfstat hap reset

This is the 1st time I've seen this as the reason for a Nexus reboot/crash.
Communicated to Cisco.

The traffic was taken over by gra1-24b-n56 during the reboot.
However, there's a lot of inconsistency on the VPC after switching back.

gra1-24b-n56# sh vpc | i fail
101377 Eth100/1/2 up failed Compatibility check failed -
101380 Eth100/1/5 up failed Compatibility check failed -
101383 Eth100/1/8 up failed Compatibility check failed -
101384 Eth100/1/9 up failed Compatibility check failed -
101395 Eth100/1/20 up failed Compatibility check failed -

gra1-24b-n56# sh vpc | i fail | count
390

1/3 of the ports are impacted...

It's caused by a known bug which causes the 2 switches to not see the port at the same speed. It was patched in the latest version of NXOS.


gra1-24b-n56# sh vpc consistency-parameters interface Eth120/1/39

Legend:
Type 1 : vPC will be suspended in case of mismatch

Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
Speed 1 10 Mb/s 1000 Mb/s <<<<<<<
Duplex 1 full full
Port Mode 1 trunk trunk
Native Vlan 1 6 6
MTU 1 1500 1500
Admin port mode 1 pvlan trunk sec pvlan trunk sec
Shut Lan 1 No No
vPC card type 1 Empty Empty
Allowed VLANs - 101,413 101,413
Local suspended VLANs - 101,413 -

I will update all the ports to fix the issue.
Date:  Monday, 01 June 2015, 12:04PM
Reason for closing:  Done
Comment by OVH - Monday, 01 June 2015, 12:04PM

gra1-24a-n56# sh vpc | i fail | count
228


Comment by OVH - Monday, 01 June 2015, 12:04PM

gra1-24a-n56# sh vpc | i fail | count
93


Comment by OVH - Monday, 01 June 2015, 12:04PM

gra1-24a-n56# sh vpc | i fail | count
0

all done