[c-nsp] Understanding ASR1k / ESP40 capacity

[Ruslan Pustovoytov]

Think not only throughput but about pps also.
According to cisco doc ESP40 has ~20Mpps capacity, ESP20 has the same 
limitation.
So, you pick out all resources from QFP.
RA write the report where you can see this limitation - 
http://www.slideshare.net/RouterAnalysis/cisco-asr-1000-series-testing-results-and-analysis


04.10.2014 18:56, Pete Lumbis пишет:
> All,
> >
> >I'm banging my head against a brick wall trying to get sensible answers
> >from
> >Cisco TAC, so thought I'd ask the educated masses who may have come across
> >this before...
> >
> >I've got a Cisco ASR1004 with RP2, ESP40, 2 * SIP40's, and 8 * 10GE ports.
> >
> >A snapshot of usage on these ports at peak is:
> >
> >Interface         RxBps     RxPps          TxBps     TxPps
> >Te0/0/0   4,385,563,000   515,508    906,118,000   339,997
> >Te0/1/0   3,942,338,000   419,696    984,150,000   358,436
> >Te0/2/0   3,949,993,000   425,192    933,257,000   349,145
> >Te0/3/0   4,375,526,000   512,858    873,284,000   334,751
> >Te1/0/0   1,186,440,000   454,714  5,474,029,000   630,916
> >Te1/1/0     622,154,000   244,056  3,181,689,000   338,190
> >Te1/2/0     711,493,000   253,275  3,211,560,000   340,950
> >Te1/3/0   1,218,873,000   437,195  4,831,708,000   568,488
> >
> >TOTAL    20,392,380,000 3,262,494 20,395,795,000 3,260,873
> >
> >I'm seeing throughput issues on a portchannel consisting of Te0/0/0 and
> >Te0/3/0
> >(it won't go over 10Gbps aggregate)
> >
> >Cisco TAC are telling me if I add TxBps and RxBps totals together, I get
> >40Gbps,
> >so I've reached capacity of the QFP (i.e. ESP40).
> >
> >My arguement against this is that a packet which enters the router on
> >Te0/0/0,
> >goes through the SIP40 in slot 0, through the ESP40, through the SIP40 in
> >slot
> >1, and out through Te1/0/0 is still just one packet, so should only need
> >to be
> >counted once through the ESP, and once for each SIP. Hence, the throughput
> >on
> >the ESP is only 20.3Gbps on those numbers above.
> >
> >If I poll ceqfpUtilProcessingLoad by SNMP, I see peaks of around 65%, which
> >would correlate with this level of throughput.
> >
> >I'm assuming there are others of you using this platform. What sort of
> >throughput are you seeing? Am I right, or is the Cisco TAC engineer?
> >
> >TIA,
> >
> >Simon