• Author : SIDDARTHA BANSAL

 
 

Taking packet captures on Arista devices

Control-plane packet capture TCPDUMP on physical ports and SVIs. This will help in capturing only control plane traffic but no data plane traffic. Running tcpdump natively in EOS #tcpdump interface Management1 filter ether proto 0x88cc tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ma1, link-type EN10MB (Ethernet), capture size 65535 bytes 11:33:47.750573 00:1c:73:00:44:d5 (oui Arista Networks) > 01:80:c2:00:00:0e (oui Unknown), ethertype LLDP (0x88cc), length 187: LLDP, length 173: s7151.lab.local Running tcpdump from bash bash ifconfig et1       Link encap:Ethernet  HWaddr 00:1C:73:00:44:D6         UP BROADCAST MULTICAST  MTU:9214 Metric:1         RX packets:0 errors:0 dropped:0 overruns:0 frame:0         TX packets:0 errors:0...
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