[c-nsp] acl on bvi in ios xr (9k) 4.1.2

Łukasz Bromirski lukasz at bromirski.net
Sat Jul 21 11:27:42 EDT 2012


On 7/19/12 9:45 PM, Mack McBride wrote:

> If cisco deploys FIB compression it might solve some of those
 > concerns but the feedback is that the development on that has stopped
 > or is at least not on the road map.

Why? FIB compression is bad. For convergence, for scalability, for
anything other than synthetic testing. Some competitors learned this
in a hard way, customers also.

> The ASR 9K is a great box but without decent switching support and
 > rapid-pvst it doesn't work well in a managed services/colocation
 > environment.

"decent switching support" means...?

ASR 9k supports MST which uses the RSTP. You can also do multi-chassis
LAG for redundancy if needed to external boxes.

> The Nexus 7K is stuck at the same place the 6500 and 7600 are
 > routing table wise and lack of MPLS support is still a concern.

7k offers MPLS support:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/mpls/configuration/guide/mp_mpls_overview.html

In terms of FIB size, what is the size you need?

> The Juniper MX series can handle switching and rapid-pvst and upwards to 4 million routes (usual division of IPv4/IPv6 applies but is dynamic)
> and we are currently testing it for a replacement for the 6500/7600.

Good luck.

-- 
"There's no sense in being precise when |               Łukasz Bromirski
  you don't know what you're talking     |      jid:lbromirski at jabber.org
  about."               John von Neumann |    http://lukasz.bromirski.net


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