[c-nsp] Layer 2 VLAN advice..

Peter Kranz pkranz at unwiredltd.com
Tue Feb 2 13:13:03 EST 2010

The network is composed of 6509-e chassis with SUP 720 3BXL cards at all

So far respondents have recommended the following options; (so many ways to
skin this cat..!)

Cisco Resilient Ethernet Protocol (REP)
802.17 (RPR)
Spatial Reuse Protocol (SRP)

Peter Kranz
Founder/CEO - Unwired Ltd
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkranz at unwiredltd.com

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Phil Mayers
Sent: Tuesday, February 02, 2010 1:26 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Layer 2 VLAN advice..

On 02/01/2010 08:59 PM, Peter Kranz wrote:
> Currently in our network we use dot1Q trunks to forward 
> end-user/customer VLANs from Site A to Site B to provide them virtual 
> point-to-point circuits between data centers without the overhead of some
type of VPN tunnel.
> However if one of our backhauls between data centers fails, we would 
> desire these VLAN's to forward via an alternative backhaul path (All 
> of our data centers have at least 2 exits to other datacenters in our 
> network, and are meshed via OSPF/BGP)

What equipment are you running the network on?

EoMPLS occurs as an option, buf of course requires enabling MPLS.
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