From: Peter van Oene (pvo@usermail.com)
Date: Fri Mar 14 2003 - 23:51:58 GMT-3
At 04:05 PM 3/14/2003 -0500, Paul Lalonde wrote:
>Hi all,
>
>Does anybody know if Cisco currently offers (or plans to offer) the
>equivalent functionality of 3Com's XRN switch technology?
>
>As I understand it, XRN allows a cluster of switches to be configured as a
>single switch fabric and perform layer 2 and layer 3 link resiliency and
>load balancing across disparate switches and paths.
>
>In essence, XRN allows a collection of 3Com switches to work together to
>provide a central spanning tree process and EtherChannel-like functionality
>across distributed links (sort of like Multichassis Multilink PPP) while, at
>the same time, offering VRRP (ie. HSRP) between disparate layer 3 switches.
>
>I like to think of it as MPLS for a switched LAN core.
Are you referring to VPLS? If so, do you have any gear that currently
supports it?
>I know this can be done on a per-VLAN basis, but it's tedious and has to be
>done on every single switch.
>
>Does anybody know if Cisco plans to offer something like this? In the
>meantime, I don't know of any other way to get multiple Cisco switches to
>take advantage of multiple layer 2 paths because STP runs separately between
>them.
>
>Paul Lalonde
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