<div dir="auto"><div>Have you checked dm pstat to see what kind of traffic is hitting the CPU? Just wondering if this is something related to the customer and not the fact that the port was in a LAG. We usually find that high lp CPU utilization is caused by multicast issues in our environment.<div dir="auto"><br></div><div dir="auto">dm pstat will show various packet counts per lp since the last run, I usually ignore the first run.</div><div dir="auto"><br></div><div dir="auto">-- </div><div dir="auto">Eldon Koyle</div><br><br><div class="gmail_quote"><div dir="ltr">On Thu, Apr 12, 2018, 08:16 Alexander Shikoff <<a href="mailto:minotaur@crete.org.ua">minotaur@crete.org.ua</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello!<br>
<br>
I've run in strange issue on my MLXe-16: traffic on port which formerly <br>
had been in LACP LAG and was removed from it hits LP CPU.<br>
<br>
I have a LAG of 12 ports:<br>
<br>
=== LAG "asw1-gdr-temp" ID 44 (dynamic Deployed) ===<br>
LAG Configuration:<br>
Ports: e 2/3 e 3/8 e 4/2 e 7/11 e 7/14 e 8/3 e 9/8 e 10/2 e 11/4 e 13/5 e 14/12 e 14/14<br>
Port Count: 12<br>
Primary Port: 2/3<br>
Trunk Type: hash-based<br>
<br>
I removed port eth 14/14 from LAG and assigned it to another customer,<br>
and now the traffic on it is being forwarded by LP CPU:<br>
<br>
<a href="http://telnet@lsr1-gdr.ki#show" rel="noreferrer noreferrer" target="_blank">telnet@lsr1-gdr.ki#show</a> cpu-utilization lp <br>
<br>
16:51:20 GMT+02 Thu Apr 12 2018<br>
<br>
SLOT #: LP CPU UTILIZATION in %:<br>
in 1 second: in 5 seconds: in 60 seconds: in 300 seconds:<br>
1: 1 1 1 1 <br>
2: 1 1 1 1 <br>
3: 1 1 1 1 <br>
4: 1 1 1 1 <br>
5: 1 1 1 1 <br>
6: 1 1 1 1 <br>
7: 1 2 1 1 <br>
8: 1 1 1 1 <br>
9: 1 1 1 1 <br>
10: 1 1 1 1 <br>
11: 1 1 1 1 <br>
12: 2 3 2 2 <br>
13: 1 1 1 1 <br>
14: 21 22 17 16 <br>
15: 1 1 1 1 <br>
16: 1 1 1 1 <br>
<br>
LACP LAG contains ports on mix of BR-MLX-10Gx20 and NI-MLX-10Gx8-D<br>
cards. Port 14/14 is on BR-MLX-10Gx20 card. A box runs IronWare ver. 5.9.00be.<br>
<br>
Did anyone run into the same issue? Is there a way to fix that without<br>
un-deploying LACP LAG?<br>
<br>
Thanks in advance!<br>
<br>
-- <br>
MINO-RIPE<br>
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</blockquote></div></div></div>