Scenario:
Full mesh of PVCs between 3 routers: R4 R5 and R6
Frame-relay map statements DO NOT have broadcast statement
Adjacencies do not form.
This is from debug ip packet on R6:
R6#debug ip packet
IP packet debugging is on
*Mar 1 01:00:26.367: IP: s=172.12.45.6 (local), d=224.0.0.5 (Serial1/1), len 76, sending broad/multicast
*Mar 1 01:00:26.371: IP: s=172.12.45.6 (local), d=224.0.0.5 (Serial1/1), len 76, encapsulation failed
After enabling broadcast on the frame maps, adjacencies came up
Solution:
Point-to-multipoint ospf networks need broadcast keyword on frame-relay map.
Without it you will see "encapsulation failed" when the router tries to send multicast hellos.
Full mesh of PVCs between 3 routers: R4 R5 and R6
Frame-relay map statements DO NOT have broadcast statement
Adjacencies do not form.
This is from debug ip packet on R6:
R6#debug ip packet
IP packet debugging is on
*Mar 1 01:00:26.367: IP: s=172.12.45.6 (local), d=224.0.0.5 (Serial1/1), len 76, sending broad/multicast
*Mar 1 01:00:26.371: IP: s=172.12.45.6 (local), d=224.0.0.5 (Serial1/1), len 76, encapsulation failed
After enabling broadcast on the frame maps, adjacencies came up
Solution:
Point-to-multipoint ospf networks need broadcast keyword on frame-relay map.
Without it you will see "encapsulation failed" when the router tries to send multicast hellos.
