Re: VSS configuration

leyakhath muhammed · ‎01-04-2018

Hi,

I have a chassis Cisco 6506 and using SUP 720.I am getting an error during the boot process, after changed confireg, I can boot normally.But I need to change the switch ID 1 Active and switch ID 2 standby please advice me

Warning: rommon NVRAM area is corrupted. Initialize the area to default values

Cat6-SUP720/RP

rommon 1> confreg 0x2142

rommon 2> reload

SW001#sh switch virtual redundancy
My Switch Id = 2
Peer Switch Id = 1
Last switchover reason = active unit removed
Configured Redundancy Mode = sso
Operating Redundancy Mode = sso

Switch 2 Slot 5 Processor Information :
-----------------------------------------------
Current Software state = ACTIVE
Uptime in current state = 43 weeks, 4 days, 3 hours, 21 minutes
Image Version = Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(33)SXJ1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Wed 22-Jun-11 18:03 by prod_rel_team
BOOT = Configuration register = 0x2102
Fabric State = ACTIVE
Control Plane State = ACTIVE

Switch 1 Slot 5 Processor Information :
-----------------------------------------------
Current Software state = STANDBY HOT (switchover target)
--More-- Uptime in current state = 43 weeks, 3 days, 18 hours, 9 minutes
Image Version = Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(33)SXJ1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Wed 22-Jun-11 18:03 by prod_rel_team
Configuration register = 0x2102
Fabric State = ACTIVE
Control Plane State = STANDBY

SW001#sh switch virtual role

Switch Switch Status Priority Role Session ID
Number Oper(Conf) Local Remote
------------------------------------------------------------------
LOCAL 2 UP 100(100) ACTIVE 0 0
REMOTE 1 UP 110(110) STANDBY 7549 9579

Thanks.

Mark Malone · ‎01-04-2018

if your trying to make one of the switches more preferred you need to alter the priority in switch domain section this will cause a failover , if you need to do it on the non active switch you can access it like below by sending remote command or login in and change it on standby switch

xxxxxxxx#remote ?
command Remote command execution
login Remote console loginstan

remote login standby

switch virtual domain 100
switch mode virtual
switch 1 priority 200
mac-address use-virtual

leyakhath muhammed · ‎01-04-2018

Thank you, Mark Malone
Warning: rommon NVRAM area is corrupted. Initialize the area to default values
Cat6-SUP720/RP

rommon 1> confreg 0x2142

rommon 2> reload
After doing this, I can boot normally.
How can I check whether NVRAM is got any problem in REMOTE 1(SW)
Thanks

Mark Malone · ‎01-04-2018

LOGIN REMOTELY USING COMMAND BELOW FROM ACTIVE SWITCH AND RUN DIR NVRAM: , SEE WHAT IT RETURNS , IT WINT BE ON TACACS AS ITS THE STANDBY IF THATS IN PLACE YOU WILL NEED TO USE THE LOCAL AUTHENTICATION PASSWORDS

xxxxxxxx#remote login standby
Trying Switch ...
Entering CONSOLE for Switch
Type "^C^C^C" to end this session

Username: xxxxxxxx
Password:

xxxxxxxxxx-sdby>en
Password:
xxxxxxxxxx-sdby#dir nvr
xxxxxxxxxx-sdby#dir nvram:
Directory of nvram:/

2544 -rw- 67066 Jan 4 2018 00:00:14 +00:00 startup-config
2545 -rw- 4022 Jan 4 2018 00:00:14 +00:00 private-config
2546 -rw- 67066 Jan 4 2018 00:00:14 +00:00 underlying-config
4 -rw- 465 Jun 7 2017 00:00:08 +00:00 persistent-data
5 -rw- 0 Aug 10 2003 19:08:50 +00:00 rf_cold_starts
6 -rw- 18520 Jan 4 2018 00:00:12 +00:00 ifIndex-table

2552192 bytes total (2446528 bytes free)
xxxxxxxxxx-sdby#

leyakhath muhammed · ‎01-05-2018

Hi,
SW001#remote login switch-id 1 module 5
Trying Switch ...
Entering CONSOLE for Switch
Type "^C^C^C" to end this session
i already checked NVRAM of standby switch.....pls check whether any problem is there...
SW001-sdby-sp# dir nvram
1918 -rw- 49113 <no date> startup-config
1919 ---- 2106 <no date> private-config
1920 -rw- 49113 <no date> underlying-config
1 ---- 370 <no date> persistent-data
2 ---- 0 <no date> rf_cold_starts
3 -rw- 0 <no date> ifIndex-table
4 -rw- 13 <no date> snmpid-file
5 -rw- 574 <no date> IOS-Self-Sig#3901.cer
1964024 bytes total (1907633 bytes free)

SW001-sdby-sp# show startup-config
Using 49113 out of 1964024 bytes
!
! Last configuration change at 10:41:10 Thu May 26 2016 by ADMIN
! NVRAM config last updated at 10:41:11 Thu May 26 2016 by ADMIN
!
version 12.2
service timestamps debug datetime msec
Thanks

pigallo · ‎01-04-2018

Hi,

if you want to force a "switchover" on a VSS you can also configure the command "redundancy force-switchover" on the active switch which causes the active device to switch with the standby immediately. If you change the priorities, bear in mind that it will not cause a preemptive effect on the role status of the two machines, you should restart the device in order for the command to take effect.