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New Member

ISR G2s Trunk between Enhanced EtherSwitch modules?

I've used enhanced Etherswitch modules before but never in the way I am thinking for a solution for a customer. 

They want a data center in a box solution so I am spec'ing out 1 3945 with UCS/CUCME/Unity/etc plus a 24 port PoE Etherswitch (

SM-ES3G-24-P)

.

For server redundancy, I am also putting in a 2921 router with a UCS blade and another 24 port PoE Etherswitch.

My question is this.  Can I build and SVI on both routers for say VLAN20 running HSRP and then trunk the 2 routers together using a port on the Etherswitches just like I could do if I had a couple of normal switches?  Or is this configuration not supported?

My goal is to try and design a solution using just the routers without purchasing separate external switches but the 2 Etherswitches in the router would need to be trunked and talk just like 2 external switches could.

Thanks for any help!

Chris

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Cisco Employee

Re: ISR G2s Trunk between Enhanced EtherSwitch modules?

Hi Chris,

I didn't test, but I cannot think any reason why it won't work.

HTH,
Lei Tian

Sent from Cisco Technical Support iPhone App

2 REPLIES
Cisco Employee

Re: ISR G2s Trunk between Enhanced EtherSwitch modules?

Hi Chris,

I didn't test, but I cannot think any reason why it won't work.

HTH,
Lei Tian

Sent from Cisco Technical Support iPhone App

New Member

ISR G2s Trunk between Enhanced EtherSwitch modules?

Lei, thanks for the reply.  I agree in theory.  But more than once I've been in front of a customer doing an install for something that should work only to find out that in 1 document out of the 500 online, there is a single sentence that states that what I'm trying to do is unsupported and won't work.  Does anyone have any experience doing the above?

Thanks again.

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