[c-nsp] Alternative to AToM Tunnel Select?
adam at thepub.cx
Fri Oct 15 14:06:57 EDT 2004
I have a small scale AToM configuration that uses the "AToM Tunnel Select"
feature to force a specific path through the network per subscriber
without any fallback/re-routing. Specifically we have ..
preferred-path interface Tunnel1 disable-fallback
encapsulation dot1q 3
xconnect <IP> <VC ID> pw-class Path1
[where Tunnel1 is built with an explicit path]
This works well but gives 2 problems that I'm considering before a wider
scale deployment ...
1) The "AToM Tunnel Select" is limited to 12.0S right now that limits our
PE platform choice [we use 7200s with L2 VLAN handoff via some cheap
2) Our NOC would find it easier to manage without the L2 VLAN handoff ...
so ideally we'd like a solution where we could deploy something like
the 3750 Metro switch as the PE.
Does anyone here have ideas [or ideally experience] of building a
moderately large scale deployment of AToM where each path is explicitly
configured and failover is disabled without using "AToM tunnel select"
and/or using a small L3 switch as a PE? If so, PLEASE point me in the
More information about the cisco-nsp