As part of
There is a minor difference between
In both cases, the L2 tables of attached switches are updated; however in the case of SBC SWe, the routers' ARP tables must be updated as well.
Configuring Routers in SBC SWe Network
If a router in an
For example, the received Gratuitous ARP reply on a Juniper SRX device does not update the ARP cache by default. You must configure the router to enable ARP table update for switch-over to work properly.
A knowledge base article on how to enable the updating of the ARP cache for received gratuitous ARP replies is located here: