Vadim Goncharov wrote:
Is multicast and multipath routing the same?
No. They are currently orthogonal.
However it makes sense to merge the multicast and unicast forwarding
code as currently MROUTING is limited to a fan-out of 32 next-hops only.
In multicast, next-hops are normally just interfaces.
Also the IETF MANET ad-hoc IP is going to need hooks there; multicast in
MANET needs to address its next-hops by their unicast address, and
encapsulate the traffic with a header. This is not true link layer
multicast -- although it might use link layer multicast to leverage the
hash filters in 802.11 MACs.
As regards getting ARP out of forwarding tables, this should have
happened a long time ago...
BMS
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