Arista EOS: VARP - GARP

If you have the following VARP configuration:

ip virtual-router mac-address 00:00:33:33:44:44
ip virtual-router mac-address advertisement-interval 1
interface Vlan2000
   ip address 20.0.134.14/16
   ip virtual-router address 20.0.134.1

You will see the incoming GARP every 1 sec (collecting by "bash tcpdump -nvvi vlan2000 -w arp.cap")



Arista EOS

• Use opcode=2 (reply) as GARP 
• SrcMAC = vMAC, DstMAC = all FF
• Send/Target MAC/IP = vMAC/vIP
• You see 2 GARP in 1 sec because of 2 mlag peers