4500X Standby Switch in disable mode

shaharshad · ‎11-08-2015

Hi,

My Secondary Switch is in disable state despite its in SSO mode. What can be the reason.

#sh redundancy
Redundant System Information :

------------------------------
Available system uptime = 1 year, 7 weeks, 1 day, 2 hours, 8 minutes
Switchovers system experienced = 0
Standby failures = 0
Last switchover reason = none

Hardware Mode = Simplex
Configured Redundancy Mode = Stateful Switchover
Operating Redundancy Mode = Stateful Switchover
Maintenance Mode = Disabled
Communications = Down Reason: Simplex mode

Current Processor Information :
------------------------------
Active Location = slot 1/1
Current Software state = ACTIVE
Uptime in current state = 1 year, 7 weeks, 1 day, 9 hours, 5 minutes
Image Version = Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.04.04.SG RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 16-May-14 12:29 by prod_r
BOOT = bootflash:cat4500e-universal.SPA.03.04.04.SG.151-2.SG4.bin,1;bootflash:cat4500e-universal.SPA.03.03.02.SG.151-1.SG2.bin,1;
Configuration register = 0x2102

Peer (slot: 1/10) information is not available because it is in 'DISABLED' state

JMDCSW01#sh redundancy sta
JMDCSW01#sh redundancy states
my state = 13 -ACTIVE
peer state = 1 -DISABLED
Mode = Simplex
Unit = Primary
Unit ID = 1

Redundancy Mode (Operational) = Stateful Switchover
Redundancy Mode (Configured) = Stateful Switchover
Redundancy State = Non Redundant
Manual Swact = disabled (system is simplex (no peer unit))

Communications = Down Reason: Simplex mode

client count = 72
client_notification_TMR = 240000 milliseconds
keep_alive TMR = 9000 milliseconds
keep_alive count = 0
keep_alive threshold = 18
RF debug mask = 0

===========================================================

#sh module
Switch Number: 1 Role: Virtual Switch Active

Chassis Type : WS-C4500X-16

Power consumed by backplane : 0 Watts

Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 16 4500X-16 10GE (SFP+) WS-C4500X-16 JAE18220189

M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 88f0.3103.ad38 to 88f0.3103.ad47 1.1 15.0(1r)SG10 03.04.04.SG Ok

Mod Redundancy role Operating mode Redundancy status
----+-------------------+-------------------+----------------------------------
1 Active Supervisor SSO Active

Switch Number: 2 Role: Virtual Switch Standby

Chassis Type : WS-C4500X-16

Power consumed by backplane : 0 Watts

Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 16 4500X-16 10GE (SFP+)

M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 5087.89ad.8540 to 5087.89ad.854f Provision

Mod Redundancy role Operating mode Redundancy status
----+-------------------+-------------------+----------------------------------

irfan1729 · ‎11-08-2015

Hi shaharshad,

Check the software versions in both supervisors from output of "show module". Also the communication seems to be "Simplex". It should be Duplex mode. I have a 4500 series switch with SSO. Below is the output of various commands.

L3_SW#sh redundancy
Redundant System Information :
------------------------------
Available system uptime = 6 weeks, 4 days, 18 hours, 12 minutes
Switchovers system experienced = 1
Standby failures = 0
Last switchover reason = active unit failed

Hardware Mode = Duplex
Configured Redundancy Mode = Stateful Switchover
Operating Redundancy Mode = Stateful Switchover
Maintenance Mode = Disabled
Communications = Up

Current Processor Information :
-------------------------------
Active Location = slot 2
Current Software state = ACTIVE
Uptime in current state = 6 weeks, 4 days, 18 hours, 12 minutes
Image Version = Cisco IOS Software, Catalyst 4500 L3 Switch Sof
tware (cat4500-ENTSERVICESK9-M), Version 15.0(2)SG5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 31-Jul-12 03:44 by prod_rel_team
BOOT = bootflash:cat4500-entservicesk9-mz.150-2.SG5.bi
n,12;
Configuration register = 0x2102

Peer Processor Information :
----------------------------
Standby Location = slot 1
Current Software state = STANDBY HOT
Uptime in current state = 3 weeks, 1 day, 13 hours, 3 minutes
Image Version = Cisco IOS Software, Catalyst 4500 L3 Switch Sof
tware (cat4500-ENTSERVICESK9-M), Version 15.0(2)SG5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 31-Jul-12 03:44 by p
BOOT = bootflash:cat4500-entservicesk9-mz.150-2.SG5.bi
n,12;
Configuration register = 0x2102

L3_SW#sh redundancy states
my state = 13 -ACTIVE
peer state = 8 -STANDBY HOT
Mode = Duplex
Unit = Secondary
Unit ID = 2

Redundancy Mode (Operational) = Stateful Switchover
Redundancy Mode (Configured) = Stateful Switchover
Redundancy State = Stateful Switchover
Maintenance Mode = Disabled
Manual Swact = enabled
Communications = Up

client count = 60
client_notification_TMR = 240000 milliseconds
keep_alive TMR = 9000 milliseconds
keep_alive count = 1
keep_alive threshold = 18
RF debug mask = 0x0

shaharshad · ‎11-09-2015

iOS version is same in both

thanks

Ibrahim Khatib · ‎08-29-2018

Simplex mode is the SYMPTOM of the problem. When the peer is down or Disabled, the active unit automatically goes to Simplex mode (because who would it fail over TO?)

MMstre · ‎11-01-2018

Check and make sure the standby is not stuck on ROMMON