[c-nsp] 7600/6500 L3 vs SVI

[Jon Lewis]

On Fri, 5 Aug 2005, Dale W. Carder wrote:

> Maybe you don't need to trunk to your 3550?

I don't need/want trunking in this case.

> vlan 2000
> name Foo-lan
>
> int vlan 2000
> ip addr 10.0.0.1
>
> interface gi1/49
> no ip addr
> switchport
> switchport mode access
> switchport access vlan 2000

That's what I'd done.  When I configured int vlan1 on the 3550 (btw, an 
ancient one with code from 2002 IIRC, that didn't seem to support any L3 
(can't no switchport an interface, can't enable ip routing, etc.)) it 
I got errors about mismatching vlan numbers.

If I configure the port on the 6500 as a L3 interface (no switchport\nip 
addr ...), the 3550 works just fine with int vlan 1 configured with an 
appropriate IP.

The idea is, as a customer connection (customer little switch connecting 
to our 6500), I'd prefer the customer just use vlan1 or configure a L3 
port (if their switch can do L3) to talk to us and not need any knowledge 
of what vlan it is on our 6500.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                | 
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