04-18-2017 08:22 AM - edited 03-08-2019 10:14 AM
I have multiple 4510 switches with dual SUP8 modules running at a new campus site. The site has frequent power outages and every time this happens, one of the switches boots to ROMMON and needs to be manually booted back into service. All of the other switches come back without issue. I don't see anything obvious with the config to understand why this is happening. Anyone have any experience with this and have any suggestions for resolution? Thanks in advance.
04-18-2017 08:30 AM
Can you post the output of "sh redundancy" from that switch.
HTH
04-18-2017 11:03 AM
Redundant System Information :
------------------------------
Available system uptime = 5 weeks, 8 hours, 19 minutes
Switchovers system experienced = 0
Standby failures = 0
Last switchover reason = none
Hardware Mode = Duplex
Configured Redundancy Mode = Stateful Switchover
Operating Redundancy Mode = Stateful Switchover
Maintenance Mode = Disabled
Communications = Up
Current Processor Information :
------------------------------
Active Location = slot 5
Current Software state = ACTIVE
Uptime in current state = 5 weeks, 8 hours, 17 minutes
Image Version = Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500es8-UNIVERSAL-M), Version 03.07.01.E RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Tue 28-Apr-15 10:05 by prod
BOOT = bootflash:packages.conf,1;slavebootflash:packages.conf,1;
Configuration register = 0x102
Peer Processor Information :
------------------------------
Standby Location = slot 6
Current Software state = STANDBY HOT
Uptime in current state = 5 weeks, 8 hours, 11 minutes
Image Version = Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500es8-UNIVERSAL-M), Version 03.07.01.E RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Tue 28-Apr-15 10:05 by pr
BOOT = bootflash:packages.conf,1;slavebootflash:packages.conf,1;
Configuration register = 0x102
04-18-2017 11:11 AM
Can you change the configuration resister to 0x2102 and reload?
Everything else looks good. If this does not resolve it, you may want to open a ticket with TAC.
HTH
04-18-2017 12:03 PM
Reza.....I think this is going to be the solution. As soon as I looked at that compared to the others, it was obvious. I will let you know if it works, I can't reload the switch right now as it is in production.
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