Re: 3550 SVI and routed port

From: Scott Thornton (scthornton@gmail.com)
Date: Tue Aug 23 2005 - 16:55:18 GMT-3

Ed:

HTH

"A VLAN bridge domain is represented with switch virtual interface
(SVI). A set of SVIs and routed ports (which do not have any VLANs
associated with them) can be configured (grouped together) to form a
bridge group. Recall that an SVI represents a VLAN of switch ports as
one interface to the routing or bridging function in the system. You
associate only one SVI with a VLAN, and you configure an SVI for a
VLAN only when you want to route between VLANs, to fallback-bridge
nonroutable protocols between VLANs, or to provide IP host
connectivity to the switch. A routed port is a physical port that acts
like a port on a router, but it is not connected to a router. A routed
port is not associated with a particular VLAN, does not support VLAN
subinterfaces, but behaves like a normal routed interface."

""www.cisco.com

On 8/23/05, Ed Tan <tytanx@gmail.com> wrote:
> Hi group,
>
> I have a router connected to a 3550 back to back. I am trying to
> configure RIP and enable authentication. I would like to know what is
> the different between the SVI and routed port? I tried both
> configuration and both are working? (interface F0/2 is in vlan82)
>
> interface FastEthernet0/2
> no switchport
> ip address 192.10.1.8 255.255.255.0
> ip rip authentication mode md5
> ip rip authentication key-chain RIPkey
> !
>
> OR
>
> interface Vlan82
> ip address 192.10.1.8 255.255.255.0
> ip rip authentication mode md5
> ip rip authentication key-chain RIPkey
> !
>
> router rip
> version 2
> network 192.10.1.0
> no auto-summary
> !
>
> Thanks,
> Ed
>
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-- 
Scott C Thornton

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