Hi guys,
The solution guide says:
"RIP routes leaked from R6 into the EIGRP domain will be redistributed into OSPF with the AD of 110. As a result, R1 and R2 will prefer reaching the RIP routes via OSPF, which will result in a loop."
But if I perform mutual redistribution on R1 and R2 without any safeguards:
router eigrp 100
redistribute ospf 1 metric 10000 10 255 1 1500
router ospf 1
redistribute eigrp 100 subnets
I don't see any loop.
Traceroute from R5 looks like this:
Rack1R5# traceroute 30.0.0.1
Type escape sequence to abort.
Tracing the route to 30.0.0.1
1 136.1.15.1 0 msec 0 msec 4 msec
2 136.1.136.6 4 msec 4 msec 4 msec
3 204.12.1.254 8 msec * 8 msec
I tried shutting down links, clearing OSPF process both on R1 and R2, but in the end I always get such a result.
Has anybody seen this loop in their lab? Should I expect a loop in a data plane or some kind of route oscillation?
Can somebody explain the mechanism how does this loop form?