resend: multiple routing table roadmap (format fix)

[Bruce M. Simpson]

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