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<p>Hi</p>
<p>we see similar problems on ASR1006-X with ESP100 and MIP100. At
about ~45 Gbit/s of traffic (on ~30k PPPoE Sessions and ~700k CGN
sessions) the QFP utilization skyrockets from ~45 % straight to
~95 % :(<br>
I don't know if it's the CGN sessions or the traffic/packets
causing the load increase, the datasheet says it supports
something like 10M sessions.... but maybe not if you really intend
to push packets through it?<br>
We have not seen such spikes with way higher pps, but lower CGN
session count, when we had DDoS Attacks against end customers.<br>
</p>
<p>Fiona<br>
</p>
<div class="moz-cite-prefix">On 11/26/21 20:09, Colin Legendre
wrote:<br>
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cite="mid:CAO+dc2g78A+xCc76=y9uLVKKUiDHieHFVPNXi4V4XZc1+X8hxQ@mail.gmail.com">
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<div dir="ltr">Hi,
<div><br>
<div>We have ...</div>
<div><br>
</div>
<div>ASR1006 that has following cards...</div>
<div>1 x ESP40</div>
<div>1 x SIP40</div>
<div>4 x SPA-1x10GE-L-V2</div>
<div>1 x 6TGE</div>
<div>1 x RP2</div>
<div><br>
</div>
<div>We've been having latency and packet loss during peak
periods...</div>
<div><br>
</div>
<div>We notice all is good until we reach 50% utilization on
output of...</div>
<div><br>
</div>
'show platform hardware qfp active datapath utilization
summary'</div>
<div><br>
</div>
<div>Literally ... 47% good... 48% good... 49% latency to next
hop goes from 1ms to 15-20ms... 50% we see 1-2% packet-loss
and 30-40ms latency... 53% we see 60-70ms latency and 8-10%
packet loss.</div>
<div><br>
</div>
<div>Is this expected... the ESP40 can only really push 20G and
then starts to have performance issues?</div>
<div><br>
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---<br>
Colin Legendre<br>
<br>
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