OSPF inter-area learned routes [7:22268]

2001-10-05 Thread Ian Schorr
Okay, I've been beating my head over this one for a week, and finally give up: I'm trying to understand the logic behind OSPF's and Cisco's routing selection behavior in this instance: I have 6 routers, segmented into 3 areas - areas 0, 1, and 2. Routers A1 and A2, which sit in area 1, have fas

Re: [OSPF inter-area learned routes [7:22268]

2001-10-05 Thread Curtis Call
Are you sure that the B1 Network Summary LSA had a lower cost then the B2 Summary LSA? According to how I understood your topology, B1 should advertise a cost of 65 to reach network C and B2 should advertise a cost of 2. So they should both use the T1 link to B2 to exit the area. The reason for

Re: OSPF inter-area learned routes [7:22268]

2001-10-05 Thread EA Louie
/3304_c1_sec2.pdf p 16 hth... -e- - Original Message - From: "Ian Schorr" To: Sent: Friday, October 05, 2001 1:49 PM Subject: OSPF inter-area learned routes [7:22268] > Okay, I've been beating my head over this one for a week, and finally give > up: > > I'm tryin

Re: OSPF inter-area learned routes [7:22268]

2001-10-05 Thread Priscilla Oppenheimer
I sketched your network and it made me wonder if the path you think is "shortest" really is shortest. To get to the C routers in Area 2, the Area 1 A routers have four possible paths: 1. A1---T3---B1---B2---T3---C2 2. A1---T3---B1---T1---C1 3. A2---T1---B2---T3---C2 4. A2---T1---B2---B1---T1--

Re: [Re: [OSPF inter-area learned routes [7:22268]

2001-10-05 Thread Curtis Call
Sorry, I meant to say that I would have expected B2's cost to be 3 not 2. Curtis Call wrote: > Are you sure that the B1 Network Summary LSA had a lower cost then the B2 > Summary LSA? According to how I understood your topology, B1 should advertise > a cost of 65 to reach network C and B2 shoul