topic RE: Both nodes in a 2 switch stack show Role as Master in ExtremeSwitching (EXOS/Switch Engine)

Both nodes in a 2 switch stack show Role as Master

Terry_Jacobs — Wed, 15 Nov 2017 22:25:00 GMT

Switch 2, previously with Role Backup, is now showing at Role Master. Switch 1 is still actively the Master. All ports on Switch 2 are now showing as Ready. Devices connected to Switch 2 are no longer responding.

RE: Both nodes in a 2 switch stack show Role as Master

Patrick_Voss — Wed, 15 Nov 2017 22:28:00 GMT

Can you send a "show switch" and "show slot"?

RE: Both nodes in a 2 switch stack show Role as Master

Terry_Jacobs — Wed, 15 Nov 2017 22:28:00 GMT

Show switch displays only switch 1. Here's output from show slot:
Slot-1 SJCO-DMZ-X460-48T-2.23 # sh slot
Slots Type Configured State Ports
--------------------------------------------------------------------
Slot-1 X460-48t X460-48t Operational 58
Slot-2 X460-48t X460-48t Failed 58
Slot-3 Empty 0

RE: Both nodes in a 2 switch stack show Role as Master

Terry_Jacobs — Wed, 15 Nov 2017 22:28:00 GMT

version 12.5.4.5
Slot-2 information:
State: Failed
Download %: 100
Restart count: 1 (limit 5)
Serial number: 800322-00-07 1151G-82157
Hw Module Type: X460-48t
SW Version: 15.2.3.2
SW Build: v1523b2-patch1-12
Configured Type: X460-48t
Ports available: 58
Recovery Mode: Reset
Node MAC: 02:04:96:83:9E:27
Current State: FAIL
Image Selected: secondary
Image Booted: secondary
Primary ver: 12.6.4.1
Secondary ver: 15.2.3.2
Config Selected: primary.cfg

RE: Both nodes in a 2 switch stack show Role as Master

Terry_Jacobs — Wed, 15 Nov 2017 22:28:00 GMT

Sorry, 15.2.3.2 is the active version.

RE: Both nodes in a 2 switch stack show Role as Master

Patrick_Voss — Wed, 15 Nov 2017 22:39:00 GMT

Can you send a "show slot 2 detail" and also what version of code is running on this stack? The "show switch" should provide that with the patch.

RE: Both nodes in a 2 switch stack show Role as Master

Patrick_Voss — Wed, 15 Nov 2017 22:46:00 GMT

I am sure a reboot of slot 2 will resolve this. As for why there might be something in the logs. Do we know when this happened?

On the other side I would recommend upgrading this stack to the latest of 16.2. In 15.4 some changes were made to the stacking libraries in the code and it prevented these dual master situations.

RE: Both nodes in a 2 switch stack show Role as Master

Terry_Jacobs — Wed, 15 Nov 2017 22:46:00 GMT

Rebooting the slot resolved the issue. It's back online. Once again, thanks for the help.

RE: Both nodes in a 2 switch stack show Role as Master

Terry_Jacobs — Wed, 15 Nov 2017 22:49:00 GMT

Log states Backup Node Down. Log entries go back only to 06:00 PST this morning. That's the first indication.
I'll reboot Node 2. Thanks very much for responding.