Cisco 3925 and trunking

[j44mistry]

Hello,

I have a Cisco 3925 router and would like to configure 2 x dot1q trunks connecting to two seperate 6500 Core switches but using the same layer2  vlan (110) on both trunks ?

The layer 3 vlans for vlan 110 are configured on the cores usin HSRP.

6509 Core 1

interface Vlan110

description Infrastructure

ip address 10.171.110.2 255.255.255.0

no ip redirects

no ip unreachables

no ip proxy-arp

no mop enabled

standby 1 ip 10.171.110.1

standby 1 preempt

end

6909 Core 2

interface Vlan110

description Infrastructure

ip address 10.171.110.3 255.255.255.0

no ip redirects

no ip unreachables

no ip proxy-arp

no mop enabled

standby 1 ip 10.171.110.1

standby 1 preempt

end

Is this possible ?

Regards,

[InayathUlla Sharieff]

Hi Jaya,

Check this out;

http://www.cisco.com/en/US/docs/routers/access/interfaces/software/feature/guide/geshwic_cfg.pdf

HTH

Regards

Inayath

[j44mistry]

Yes but not sure if will working using same vlan id on trunk also is this same for Cisco 2911 ?

[InayathUlla Sharieff]

Hi Jaya,

I am totally stuck today hence dont have chance to test this.

But have a look at below thread for cisco 2911 vlan:

https://supportforums.cisco.com/thread/2026152

HTH

Regards

Inayath

*Plz dont forget to rate all usefull posts.

[j44mistry]

Sorry I have seen this thread before it does not answer my question ?

[Steven Clinton]

It should be fine if everything is connecting L2 from the 3925 to the 6500s, to avoid issues with spanning tree i would have a routed link between the 6500s though.

Sent from Cisco Technical Support iPad App

[j44mistry]

Ok thank you !