From: Forest Riek (forestr@xxxxxxx)
Date: Tue Aug 15 2000 - 05:36:13 GMT-3
DLSW+ will 'bridge' any protocol on a LAN interface that routing is not
currently enabled on. When you enable DLSW+ in a router, you are creating a
virtual interface that you use to bridge to. Then DLSW+ will encapsulate the
traffic and forward it across the network to the designated peer.
For example, ethernet interface with IP address. You also have IPX on the
ethernet segment, but the router is not configured for IPX. The router will
route the IP traffic and DLSW+ will 'bridge' the IPX to the peer router. (I
know, it happened to me.)
You can filter the DLSW+ traffic to prevent the IPX from being 'bridged', but a
quick and dirty solution is to enable IPX routing just on the ethernet
interface.
I hope this helps.
Forest Riek
Data Sales Engineer (CCIE in training)
Verizon Enterprise Solutions
Simon Baxter wrote:
> Since when??
>
> IRB and DLSW operate independently. You can have DLSW + irb or DLSW + crb
> or DLSW on it's own....
>
> Like I said, DLSW is a nice way to bridge non-routable protocols - why would
> it automatically IRB or CRB??? There's no 'R' !!
>
> -----Original Message-----
> From: Earl Aboytes [mailto:earl@linkline.com]
> Sent: Tuesday, August 15, 2000 5:06 PM
> To: Matt Lachberg 3; ccielab@groupstudy.com
> Subject: RE: bridge question
>
> When you turn on dlsw it enables irb.
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Earl Aboytes CCIE #6097
> Senior Technical Conultant
> GTE Managed Solutions
> 805-381-8817
> earl.aboytes@verizon.com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of Matt
> Lachberg 3
> Sent: Monday, August 14, 2000 11:19 AM
> To: ccielab@groupstudy.com
> Subject: FW: bridge question
>
> Theoretically, why don't you need to enable crb with dlsw+. Or does the
> enabling dlsw+ somehow create the bridging / routing capability in the
> router?
> Matthew Lachberg, CCNP, CCDP, MSCE
> -----Original Message-----
> From: Simon Baxter [mailto:Simon.Baxter@au.logical.com]
> Sent: Monday, August 14, 2000 11:02 PM
> To: Cisco@datastreet.com; ccielab@groupstudy.com
> Subject: RE: bridge question
>
> It will enable the ieee spanning tree protocol and enable bridging on the
> ethernet. If you're routing IP somewhere else on the box you'll need to run
> concurrent routing and bridging and define ip as a bridged protocol. This
> will be the same for any other routable protocols (protocols with a layer 3
> structure).
> In the most basic sense, yes, your config will enable bridging.
> -----Original Message-----
> From: Cisco@datastreet.com [mailto:Cisco@datastreet.com]
> Sent: Tuesday, August 15, 2000 2:36 AM
> To: ccielab@groupstudy.com
> Subject: bridge question
>
> Will this configuration bridge on Ethernet 0 or must I add "no ip routing"
> globally in order to enable bridging?
> interface ethernet 0
> no ip address
> bridge-group 1
> !
> bridge-group 1 protocol ieee
> Matthew Lachberg, CCNP, CCDP, MSCE
>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:24:25 GMT-3