[c-nsp] Strange ME3400 PPS Limit

Jean-Francois Levesque jf at fibrenoire.ca
Wed Apr 14 13:59:02 EDT 2010


What is the output of

# sh sdm prefer

JF


Everton da Silva Marques wrote:
> On Wed, Apr 14, 2010 at 12:40:46PM -0400, Jeremy Parr wrote:
>> On 14 April 2010 11:57, Jeremy Parr <jeremyparr at gmail.com> wrote:
>>> I have an ME3400 running 12.2(46)SE that will not pass (much) more
>>> than 1000pps through its copper gig port. The interface counters hover
>>> around 1000pps tx/rx, while the bps rate fluctuates (presumable due to
>>> the variable packet sizes getting thrown at it). There are no service
>>> policys or rate limits applied to any of the interfaces. Any thoughts?
>>>
>>> ?5 minute input rate 1681000 bits/sec, 879 packets/sec
>>> ?5 minute output rate 7545000 bits/sec, 1012 packets/sec
>> I am also seeing the following in the logs....
>>
>> %PLATFORM_UCAST-6-PREFIX:  One or more, more specific prefixes could
>> not be programmed into TCAM and are being covered by a less specific
>> prefix
> 
> I hit that warning as well, IOS is 12.2(53)SE,
> and the routing table is not huge. If you ever
> find a clue, let me know...
> 
> ME3400#sh ip route summary
> IP routing table name is Default-IP-Routing-Table(0)
> IP routing table maximum-paths is 32
> Route Source    Networks    Subnets     Overhead    Memory (bytes)
> connected       1           3           256         608
> static          0           2           192         304
> internal        3                                   3516
> Total           4           5           448         4428
> ME3400#
> 
> ME3400#sh ip cef summary
> IPv4 CEF is enabled for distributed and running
> VRF Default:
>  30 prefixes (30/0 fwd/non-fwd)
>  Table id 0
>  Database epoch:        2 (30 entries at this epoch)
> 
> ME3400#
> 
> Cheers,
> Everton
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