[c-nsp] mpls performance on 7500/7200

[Jon Lewis]

On Fri, 20 Jan 2006, matthew zeier wrote:

>> 7500 a little bit similar, but to watch out for considering most of the
>> line being EOL/EOS.
>>
>> Again, beg the question, what do you want to run them as P or PE ?
>
> PE - trying to build a centralized firewall solution for leased line
> customers.  I enabled two mpls interfaces on a 7200 yesterday and immediately
> started getting calls on performance which went away as soon as I did a "no
> tag-switching ip'.  I hadn't even configured any vrfs.

What kind of interfaces, and had you set tag-switching mtu?

We run tag-swtiching (for mpls vpn) on lots of 7200s and a few 7500s.  The 
only serious problems we've had have been dCEF bugs on the 7500s causing 
random forwarding failures for specific src/dst pairs.  "ip cef <long 
pause> ip cef dist" normally fixes it.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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