Network Interface bonding and ARP

Network Interface bonding and ARP

[murthy kn]

Hello,

   I have the following question on the interaction between 
bonding/etherchannel (bonding.c)
and the ARP cache.

1. Assume Machine B has N bonded Ethernet cards ( all of the them have the 
same IP address ).
Example Scenario : Etherchannel/trunking/bonding.

In this case, supposing a machine A does an ARP request for B, will it get 
all
the MAC addresses of the N cards.

Does the ARP cache store all the mappings.

2. If not, from what I understand, while doing certain types of scheduling 
(like Round Robin
implemented in bonding.c), we will need to send  packets to the same 
destination
in a round robin manner - first packet on first card, second on second and 
so on.

If the ARP cache stores only one MAC to IP mapping, we cannot send the 
packet
over the second card as the second card on the destination (machine B) will 
not receive
packets destined to first card (on machine B) because it is typically not in 
a
promiscuous mode.

How is this handled?

Kindly CC the replies to my account.

			Thanks,
			Murthy.


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