CISCO 4500E with Dual Sup VSS upgrade

[nibinrodrigues]

Dear All,

I am having 2 cisco WS-C4507R+E running in VSS mode. Both the switch is having 2 supervisor each. (Total 4 sup). How can I upgrade the switches without downtime,

show module
Switch Number: 1 Role: Virtual Switch Active

Chassis Type : WS-C4507R+E

Power consumed by backplane : 40 Watts

Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 48 10/100/1000BaseT EEE (RJ45) WS-X4748-RJ45-E
2 48 10/100/1000BaseT EEE (RJ45) WS-X4748-RJ45-E 
3 4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP) WS-X45-SUP7-E 
4 4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP)
5 18 10GE (X2), 1000BaseX (SFP) WS-X4606-X2-E 
6 24 1000BaseX (SFP) WS-X4624-SFP-E 

M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 bc16.65f7.db54 to bc16.65f7.db83 1.1 Ok
2 e02f.6d31.1478 to e02f.6d31.14a7 1.1 Ok
3 885a.92d1.8280 to 885a.92d1.8283 2.1 15.0(1r)SG7 03.05.01.E Ok
4 885a.92d1.8284 to 885a.92d1.8287 Provision
5 e4c7.22df.6036 to e4c7.22df.6047 2.0 Ok
6 e4c7.22e4.6510 to e4c7.22e4.6527 2.0 Ok

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

Switch Number: 2 Role: Virtual Switch Standby

Chassis Type : WS-C4507R+E

Power consumed by backplane : 40 Watts

Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 48 10/100/1000BaseT EEE (RJ45) WS-X4748-RJ45-E 
2 48 10/100/1000BaseT EEE (RJ45) WS-X4748-RJ45-E 
3 4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP) WS-X45-SUP7-E 
4 4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP)
5 18 10GE (X2), 1000BaseX (SFP) WS-X4606-X2-E 
6 24 1000BaseX (SFP) WS-X4624-SFP-E 

M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 885a.92b0.c46c to 885a.92b0.c49b 1.1 Ok
2 acf2.c5cf.9ef0 to acf2.c5cf.9f1f 1.1 Ok
3 78da.6e09.cfc0 to 78da.6e09.cfc3 2.1 15.0(1r)SG7 03.05.01.E Ok
4 78da.6e09.cfc4 to 78da.6e09.cfc7 Provision
5 c067.af1d.9032 to c067.af1d.9043 2.0 Ok
6 885a.92b5.5360 to 885a.92b5.5377 2.0 Ok

Mod Redundancy role Operating mode Redundancy status
----+-------------------+-------------------+----------------------------------
3 Standby Supervisor SSO Standby hot

Thanks

[InayathUlla Sharieff]

Step 1: copy the IOS image to the bootflash of active and the standby.
Switch# copy tftp: bootflash:<image>
Switch# copy tftp: slavebootflash:<image>

Step 2: Set the boot variable pointing to new image. Saving the running config on active
switch will synchronize the boot variable to the standby as well.
Switch# boot system flash bootflash:<image>
Switch# wr mem

Step 3: Upgrade the Standby switch at first. Standby switch will reload and it will come
with new image. There will not be any downtime as the active will be up and running.
Standby will come in RPR mode as there will be software version mismatch between Active
and standby switches.
Switch# redundancy peer reload

Step 4: Failover to standby which will reload the active and it will come up with new
version and it will be in SSO standby Hot. In this process, there will be downtime of 2-3
minutes.
Switch# redundancy force-switchover

HtH

Regards

Inayath

[nibinrodrigues]

Dear Leo/Inayath,

Thanks for the prompt response as always. But both of you mentioning coping files to bootflash: and slavebootflash: but in my case as I have 4 supervisor so do I only need to copy to primary sup of both the chassis.

Secondary sup on both chassis is in  "Provision" mode so if i copy to bootflash: and slavebootflash: will these also take image.

Thanks

[Leo Laohoo]

so do I only need to copy to primary sup of both the chassis.

Of course, the IOS needs to be copied to all the supervisor cards, both primaries and both secondaries.  

[Leo Laohoo]

Read THIS.