[nsp] 7401

[Burns, Keith]

This is a little misleading.

Essentially the "stackable" LNS solution was to use a Cisco 6500 doing SLB
in front of the LNS network element stack.

An IE2100 (configuration engine) kept LDAP templates of the generic
configuration and specifics between LNS-A, LNS-B etc were stored as LDAP
variables.

Say you were to have "m" active LNS, and kept 1 for standby (m:1
redundancy), the IE2100 keeps a session with each LNS and if one becomes
"inactive" it is taken out of the pool and the standby LNS is instantiated
with the failed LNS' LDAP variables (so for all intensive purposes it looks
like the failed LNS).

We bid this when I was at Cisco very early this year, and it was very
immature then but has probably improved dramatically.

The idea is a nice one and at the time Cisco was looking at extending the
LNS Network Element to include 10Ks as well as 7400/7200s - not sure where
its at at the moment.

Hope that helps.

Keith Burns
Principal Network Architect
ICG Telecommunications
IP Ph: 303-414-5385
Cell:   303-912-3777 

"The dogs may bark, but the caravan rolls on...."


> -----Original Message-----
> From: Mark [mailto:netw2004 at hotmail.com]
> Sent: Tuesday, December 16, 2003 4:49 AM
> To: cisco-nsp at puck.nether.net
> Subject: [nsp] 7401
> 
> 
> Hi all!
> 
>             I was looking for scalable LNS solutions and I 
> found this on a Cisco paper 
> 
>  "The Cisco 7401 ASR-BB has a one-rack unit (RU) form factor. 
> With front-to-back airflow and all equipment-handling options 
> on the front, 40 chassis can be physically stacked in a 
> 7-foot rack (80 in a back-to-back configuration), enabling 
> them to be remotely configured and managed as 1 logical router."
> 
> I haven´t found information about how to manage and configure 
> the routers as a single logical one. Is it posible or am I 
> misunderstanding the sentence?
> 
> Thank you!!
> 
> Mark
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