Multiple tables support

[pedrofran12]

PIM-DM v1.1.1 supports the definition of multiple routing tables.

Unicast routing table:

• By default, RPF checks and unicast metric information is obtained from the default unicast routing table (id 254). If intended this information can be obtained from a different table just by setting the expected table id at startup with -uvrf UNICAST_TABLE_ID.

Multicast routing table:

• By default, all multicast trees are set on the default multicast routing table (id 0). If intended trees can be set on a different table by setting the expected table id at startup with -mvrf MULTICAST_TABLE_ID.
• If the multicast routing table is different from the default one, multicast rules are automatically defined for all interfaces that are added to the protocol process. If interface eth0 is added to the protocol and the multicast routing table id is 5, the rules that are automatically defined are:

$ ip mrule add iif eth0 lookup 5
$ ip mrule add oif eth0 lookup 5