[c-nsp] L3 vs. L2 trunk connections to a 6509 core.Easyrouter-head question.

[Brad Henshaw]

Grant Moerschel wrote:

> Therefore is it accurate to say that if I want the 3560
> to be a Layer 2 device only I have to:
> - disable ip routing and eigrp
> - define a management interface (the current VLAN1 SVI)
> - default-gateway for the management vlan on the 3560
> - trunk as described above

Yes.

> Or if I want the 3560 to be a Layer 3 device I have to:
> - enable IP routing
> - enable EIGRP consistent with the core router
> - choose an completely different VLAN for the access
> switches and give them an SVI at the access switch and
> let EIGRP handle the routing (??)

This would work, or you could run a hybrid setup with some
switched VLANs and some routed VLANs.

IMNSHO, KISS. If you want Layer 2 to the edge then unless
you have a compelling reason to do otherwise, disable routing
on the 3560.

Regards,
Brad