05-27-2024 01:28 AM
Hi guys,
I am i need of your assistance. We have two C9200L running on IOS version:
122 426931224 Jul 29 2021 03:22:26.0000000000 +00:00 cat9k_lite-rpbase.17.03.03.SPA.pkg
When the Active switch went down due to onsite power issues, the second unit did not take over rolls as the active switch to pass traffic. What unit 2 did instead, it got stuck in Rommon mode. We had to physically reboot the switch to go back to a normal operational state.
Below is the "show switch" output:
sh switch:
Switch/Stack Mac Address : a478.0628.2700 - Local Mac Address
Mac persistency wait time: Indefinite
H/W Current
Switch# Role Mac Address Priority Version State
-------------------------------------------------------------------------------------
*1 Active a478.0628.2700 15 V02 Ready
2 Member e8eb.34a9.6c00 1 V01 Ready
Please advise how we can change the switch role of unit 2 from "Member" to Standby. I believe that will resolve the issue when the Active switch goes down, the standby switch should take over.
Solved! Go to Solution.
05-27-2024 02:05 AM - edited 05-27-2024 02:06 AM
what IOS XE code running :
By default, the priority is 1 for all switches; hence it falls back to the MAC address to determine the ACTIVE switch if a priority is not defined explicitly.
as per your output it says member ready, not standby ready. may be check #show redundancy
Also follow below guide and make necessary changes to be standby.
05-27-2024 02:05 AM - edited 05-27-2024 02:06 AM
what IOS XE code running :
By default, the priority is 1 for all switches; hence it falls back to the MAC address to determine the ACTIVE switch if a priority is not defined explicitly.
as per your output it says member ready, not standby ready. may be check #show redundancy
Also follow below guide and make necessary changes to be standby.
06-05-2024 02:40 AM
Hi Balaji, yes the issue was with the second unit marked as a "member" not "standby. We changed the roles by using the following command: switch 2 role standby. I could now see the 2nd unit when issuing the #show redundancy
Thank you.
06-05-2024 11:31 PM - edited 06-05-2024 11:32 PM
So the issue is resolve - as per your testing ?
06-06-2024 03:40 AM
Yes that is correct. Issue is resolved after being able to change the roles of the member switch to standby.
#show redundancy
Redundant System Information :
------------------------------
Available system uptime = 1 week, 1 day, 12 hours, 26 minutes
Switchovers system experienced = 0
Standby failures = 0
Last switchover reason = none
Hardware Mode = Duplex
Configured Redundancy Mode = sso
Operating Redundancy Mode = sso
Maintenance Mode = Disabled
Communications = Up
Current Processor Information :
-------------------------------
Active Location = slot 1
Current Software state = ACTIVE
Uptime in current state = 1 week, 1 day, 12 hours, 26 minutes
Image Version = Cisco IOS Software [Amsterdam], Catalyst L3 Switch Software (CAT9K_LITE_IOSXE), Version 17.3.3, RELEASE SOFTWARE (fc7)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2021 by Cisco Systems, Inc.
Compiled Thu 04-Mar-21 08:48 by mcpre
BOOT = flash:packages.conf;
Configuration register = 0x102
Peer Processor Information :
----------------------------
Standby Location = slot 2
Current Software state = STANDBY HOT
Uptime in current state = 1 week, 1 day, 12 hours, 23 minutes
Image Version = Cisco IOS Software [Amsterdam], Catalyst L3 Switch Software (CAT9K_LITE_IOSXE), Version 17.3.3, RELEASE SOFTWARE (fc7)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2021 by Cisco Systems, Inc.
Compiled Thu 04-Mar-21 08:48 by mcpre
BOOT = flash:packages.conf;
Configuration register = 0x102
05-27-2024 02:10 AM
@AJ07 wrote:
What unit 2 did instead, it got stuck in Rommon mode.
This behaviour has nothing to do with switch priority. It is a different thing.
Post the complete output to the command "sh boot".
06-05-2024 02:38 AM
Hi all, my apologies for the late response. A lot has been happening.
Anyway, I found a simple command to use to change the unit roles. The command is: switch 2 role standby
After a few minutes, the roles where changed without even needing a reboot. We also tested the "failover", powered down the Active unit, and the 2nd unit (standby) took over transmission of traffic as the configs were synced between the two units.
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