jpv wrote:
I have a 2911 connecting to the Net via one of its Gigabit ports.
Is there a way I can leverage the other two Gig ports to provide some redundancy for the connectivity back to the stack of 3750s?
--I thought etherchannel, but it does not look like the feature works with the onboard ports.
The 3750s have a Internet VLAN, which facilitates the connection to a pair of ASAs:
|--------- ASA--------|
Router ------ Stack (VLAN public)--- | | ---- Stack (VLAN transition)
|--------- ASA--------|
Thanks!
jpv
JPV
You could use IRB on the 2 interfaces on the router. That way you can have one IP address assigned to a BVI group and then the 2 gig interfaces are made part of the bridge group assigned to the BVI. One link would block but you only want redundancy as far as i can tell.
Edit - another alternative may be to run 2 routed links between the 2900 to the 3750 stack using private addressing. You then have an SVI for the public vlan on the 3750 and this is default-gateway for the ASA firewalls. Then run a routing protocol between the 3750 stack and the 2900 or use static routes.
Jon
