Hey all,
The solution guide os quite different from my solution:
INE Q)ensure traffic between R1 & R5 takes the optimal (direct) path.
INE A)The incorrect Frame Relay mapping on R1 prevents the OSPF adjacency from
coming up.
R1:
interface Serial 0/0.15
frame-relay map ip 10.1.0.11 105 broadcast
no frame-relay map ip 10.1.0.10 105
I disagree, yes the frame relay link need fixing, is did this a different way:
!!!R1
interface serial 0/1/0.15
no frame-rel map ip 10.1.0.10 105
frame0relay interface-dlci 105
This was only half the puzzle, the question says take the optimal (direct) path. to me thats over this frame-relay link right?
So with the links fixed the routes to R5 are still via the best path, which is over the fastethenet link (R5-S1-R1)
Rack1R1#show ip route 10.1.5.5
Routing entry for 10.1.5.5/32
Known via "ospf 1", distance 110, metric 3, type intra area
Last update from 10.1.0.13 on FastEthernet0/0, 00:00:00 ago
Routing Descriptor Blocks:
* 10.1.0.13, from 10.1.5.5, 00:00:00 ago, via FastEthernet0/0
Route metric is 3, traffic share count is 1
This is because the default serial cost is 64:
Rack1R1#show ip ospf interface serial 0/1/0.15 | include Cost
Process ID 1, Router ID 10.1.1.1, Network Type POINT_TO_POINT, Cost: 64
Whereas the Q is asking for the direct path, so to achive this i tweeked the link costs:
!!R1 & R5
int ser x/y/z.xxx
ip ospf cost 1
Now we use the direct path as requested.
Rack1R1#show ip route 10.1.5.5
Routing entry for 10.1.5.5/32
Known via "ospf 1", distance 110, metric 2, type intra area
Last update from 10.1.0.11 on Serial0/1/0.15, 00:00:05 ago
Routing Descriptor Blocks:
* 10.1.0.11, from 10.1.5.5, 00:00:05 ago, via Serial0/1/0.15
Route metric is 2, traffic share count is 1
So this could go two ways, either I am correct or infact the statement "ensure traffic between R1 & R5 takes the optimal (direct) path" should omint the (direct) keyword, as this contridicts the 'optimal path'?
Cheers all, I now open this up for assasination! (I accept my faults in the form of typos.. :)
Sam.