06-15-2006 09:19 AM
Hi,
My 2 6513s each have 2 Sup 2 cards in them. The slot 1 Sup card in both 6513s is the active one and Gi1/1 on each connects the 2 6513s together.
Tonight I want to pull the active Sup 2 card from the secondary 6513. If I move the cable in the secondary 6513 from Gi1/1 to Gi2/1, will I still have connectivity between the 2 6513s?
In other words, are the interfaces on the standby Sup 2 card available for use when the card is in standby mode or does it only work when it becomes active?
The configuration of ports 1/1 and 2/1 of the 2nd 6513 are below.
Also, is there a document that delineates how these 2 Sup cards on these 2 6513s should be configured for highest availability (ie. Sup card failure on either 6513)? I looked high and low on Cisco's Web site but could not find one.
Thanks, Ian.
interface GigabitEthernet1/1
description Link to COBCore1
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 80,99,100,110,111,113,120-123,130,131,133,140
switchport trunk allowed vlan add 141,153,155,165,181-186,189,200,210,212,231
switchport trunk allowed vlan add 500
switchport mode trunk
spanning-tree link-type point-to-point
!
interface GigabitEthernet1/2
no ip address
shutdown
!
interface GigabitEthernet2/1
description Link to COBCore1
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 80,99,100,110,111,113,120-123,130,131,133,140
switchport trunk allowed vlan add 141,153,155,165,181-186,189,200,210,212,231
switchport trunk allowed vlan add 500
switchport mode trunk
spanning-tree link-type point-to-point
06-15-2006 01:49 PM
the GB interfaces on the standby 6500 supervisor are active, even if the sup is in standby mode.
configure your switch to use the 1/2 GB interface and make the link connection. verify the link is up and you can pass traffic.
then you can adjust your 1/1 interface without causing downtime.
(if you create an etherchannel of the two, this will allow you to remove 1/1 and not lose any connectivity)
for high availability, i use the practice of:
switch1-sup1 gb 1/1 >> switch2-sup2 gb 1/1
switch1-sup1 gb 1/2 >> switch2-sup1 gb 1/2
switch1-sup2 gb 1/1 >> switch2-sup1 gb 1/1
switch1-sup2 gb 1/2 >> switch2-sup2 gb 1/2
this allows for a fully meshed configuration for highest available redundancy.
06-16-2006 05:42 AM
Thanks for your reply. It's just the information I was looking for. I performed the Sup 2 DRAM memory upgrades on the Sup 2 blades and it went just fine.
Thanks again for your helpful reply, Ian.
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