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Beginner

Tx-Bcst is 100 % + port channel + nexus 5596

HI All ,

 

Arista switches are connected to nexus 5k switches and am seeing Tx-Bcst as 100 % on port 1/39 as below.

 

show port-channel traffic interface port-channel 38
ChanId      Port Rx-Ucst Tx-Ucst Rx-Mcst Tx-Mcst Rx-Bcst Tx-Bcst
------ --------- ------- ------- ------- ------- ------- -------
   38  Eth1/36  28.17%  25.48%  23.76%  32.78%  27.60%    0.0%
   38   Eth1/37  21.54%  24.88%  19.64%   0.07%  22.10%    0.0%
   38   Eth1/38  24.72%  25.77%  38.61%   0.07%  29.92%    0.0%
   38   Eth1/39  25.55%  23.85%  17.97%  67.06%  20.36% 100.00%

 

I would like to know the reason for 100  % of Tx-Bcst ..any comments which shows the culprit for broadcast traffic ?  

out of four bundled links why are we seeing Tx-Bcst as 100 only on Eth 1/39 ? 

 

 

4 REPLIES 4
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Cisco Employee

HI @kmothukuri,

 

At the same time what you see in below output: 

#show int e1/36 - 39 | in broadcast

 

Regards,

MJ

Highlighted

Hi Mojafri ,

 

here is the show int eth 1/36 - 39 | in broadcast output.

 

# sh int eth 1/36 - 39 | in broadcast
7649896549 unicast packets 1053805 multicast packets 1850580 broadcast packets
5572185826 unicast packets 14283 multicast packets 0 broadcast packets
7446695445 unicast packets 1344418 multicast packets 1736082 broadcast packets
5935971829 unicast packets 14283 multicast packets 0 broadcast packets
7990893416 unicast packets 2094362 multicast packets 2232599 broadcast packets
6685141808 unicast packets 16307 multicast packets 0 broadcast packets
6524484933 unicast packets 1503192 multicast packets 1915603 broadcast packets
6074553763 unicast packets 13058606 multicast packets 7157779 broadcast packets

 

# sh int eth 1/36 | in broadcast
7650806318 unicast packets 1053991 multicast packets 1850859 broadcast packets
5573137552 unicast packets 14284 multicast packets 0 broadcast packets

 

# sh int eth 1/37 | in broadcast
7447143508 unicast packets 1344927 multicast packets 1736477 broadcast packets
5937680491 unicast packets 14285 multicast packets 0 broadcast packets

 

# sh int eth 1/38 | in broadcast
7991513160 unicast packets 2095137 multicast packets 2233216 broadcast packets
6686783035 unicast packets 16309 multicast packets 0 broadcast packets

 

# sh int eth 1/39 | in broadcast
6525077805 unicast packets 1503577 multicast packets 1916150 broadcast packets
6076812945 unicast packets 13061602 multicast packets 7159326 broadcast packets

 

Many Thanks..

Highlighted
Beginner

I'm seeing this as well on my nexus 9k. has anyone figured out why?

Highlighted

Better open a new thread for this, so if the solution is found, to be able to accept it as solution and be visible for everyone.

 

Stay safe,

Sergiu

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