From: Mark, Detrick (mdetrick@xxxxxxxxx)
Date: Mon May 17 1999 - 17:42:56 GMT-3
Title: OSPF Trivia
Your multipoint interface needs to use maps and not interface-dlci
statements.
Mark Detrick
DSL Business Unit
Cisco Systems
2569 McCabe Way
Irvine, CA 92614
----- Original Message -----
From: John Howell
To: GroupStudy (E-mail)
Sent: Monday, May 17, 1999 1:21 PM
Subject: OSPF Trivia
I thought that I would change the subject since we have beat IPX to
death. Below is a setup for a multipoint Frame network. Why does
router R2 loose all OSPF routes when the PVC to R6 comes up? Why
does R3 and R6 maintain routes from OSPF?
R6 (hub)
interface Serial0
no ip address
encapsulation frame-relay
!
interface Serial0.1 multipoint
ip address 170.100.2.1 255.255.255.0
frame-relay interface-dlci 202
frame-relay interface-dlci 203
interface Ethernet0
ip address 170.100.70.1 255.255.255.0
router ospf 100
network 170.100.2.0 0.0.0.255 area 0
neighbor 170.100.2.3
neighbor 170.100.2.2
R2 (spoke)
interface Serial0
ip address 170.100.2.2 255.255.255.0
encapsulation frame-relay
frame-relay map ip 170.100.2.1 102 broadcast
interface Ethernet0
ip address 170.100.82.1 255.255.255.192
interface TokenRing0
ip address 170.100.81.1 255.255.255.0
router ospf 100
network 170.100.2.0 0.0.0.255 area 0
network 170.100.82.0 0.0.0.63 area 2
network 170.100.81.0 0.0.0.255 area 5
R3 (spoke)
interface Serial0
ip address 170.100.2.3 255.255.255.0
encapsulation frame-relay
frame-relay map ip 170.100.2.1 103 broadcast
interface Async1
ip address 170.100.90.1 255.255.255.248
encapsulation ppp
async default routing
async dynamic routing
async mode dedicated
interface Ethernet0
ip address 170.100.82.2 255.255.255.192
router ospf 100
network 170.100.2.0 0.0.0.255 area 0
network 170.100.82.0 0.0.0.63 area 2
network 170.100.90.0 0.0.0.7 area 3
area 3 virtual-link 170.100.101.1
Thanks,
John T. Howell
Cohesive Technology Solutions
Senior Consultant/Engineer
CCNP/CCDP, MCSE+I, MCNE
225-751-6100
225-751-6200 (fax)
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