Changing 4510-SUP-6E Redundant mode To Share-Backplane mode

[sadik.bash]

Hello,

I received the following info from Cisco's TAC and wanted to inquire further before I start reconfiguring the switch:

In a redundant Sup-6E setup, the following configuration is supported :

- 1 TenGig uplink on Active Sup and 1 TenGig uplink on Standby Sup

- 1 TenGig uplink on Active Sup and 2 Gig uplinks on Standby Sup

- 2 Gig uplinks on Active Sup and 1 TenGig uplink on Standby Sup

- 2 Gig uplink on Active Sup and 2 Gig uplinks on Standby Sup

If you invoke shared backplane mode, the following configuration can also be supported:

- 2 TenGig uplinks(blocking) on Active Sup and 2 TenGig uplinks on Standby Sup

- 2 TenGig uplink(blocking) on Active Sup and 4 Gig uplinks on Standby Sup

- 4 Gig uplinks on Active Sup and 2 TenGig uplinks(blocking) on Standby Sup

- 4 Gig uplink on Active Sup and 4 Gig uplinks on Standby Sup

Here's the command and information about the "shared-backplane" mode :-

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/52sg/configuration/guide/sw
_int.html#wp1102563

Currently, we have 2  SUP 6-Es(Module 5 - Active and Module 6 - Stand-by) setup in a redundent mode. I am planning on changing the redundent mode to the shared backplane mode so I can use 2 TenGig converters to uplink 2 access-switches. We purchased 2 TenGig converters and here is how I am planning on using them:

           1- One will be used  to uplink to two 3750 switches(stacked)

           2- One will be used to uplink to a 2960 using a Gig SFP

          My questions are:

                    1- Do I have to install the 2 TenGig converters(4-Gig Uplinks) in the same Module? Or can I use one one in module 5 and the second one in module 6?

                     2- Will chaning the redundent mode to the shared backplane mode require rebooting the switch or disrupt the funtionality of the other linecards?

Thanks in advance!

Best, ~sK       

[Reza Sharifi · Accepted solution]

Hi,

1-Yes, you can use all ports on active and stand-by Sup.

all 8 Gigabit Ethernet SFP ports, 4 on the active  supervisor and 4 on the standby supervisor engine. This capability is  supported on all Catalyst 4500 and 4500E series chassis.

2-Yes it is distruptive. When you change to shared-mode, you have to reboot the active Sup.

HTH

[sadik.bash]

Got it!

Thanks much for the prompt response.

Best, ~sK