Virtual Link Problem [7:69640]
Hey Team, I cannot figure this out. I've configured lots of virtual links, but no matter what I do this isn't working. I had md5 authentication configured for Area 0, but to isolate the problem, I removed authentication and the virtual link still isn't up. I need another set of eyes (or two) looking at this. Please help if you can! Here's the topology: Area 2 (Loopback 0) | R2 \ \ FR Area 1 /\ R5R6 \/ Area 0 Ethernet Here are the salient config snippets: R2 ! interface Loopback0 ip address 192.168.2.2 255.255.255.255 ip ospf network point-to-point ! interface Serial1.256 multipoint ip address 172.16.56.2 255.255.255.248 ip ospf priority 255 frame-relay map ip 172.16.56.2 105 frame-relay map ip 172.16.56.5 105 broadcast frame-relay map ip 172.16.56.6 106 broadcast no frame-relay inverse-arp ! router ospf 1 log-adjacency-changes area 1 virtual-link 192.168.5.5 area 1 virtual-link 192.168.6.6 network 172.16.56.0 0.0.0.7 area 1 network 192.168.2.2 0.0.0.0 area 2 ! R5 interface Ethernet0 ip address 172.16.200.5 255.255.255.128 ip ospf hello-interval 15 ! interface Serial0 ip address 172.16.56.5 255.255.255.248 encapsulation frame-relay ip ospf network point-to-multipoint frame-relay map ip 172.16.56.2 501 broadcast frame-relay map ip 172.16.56.5 501 frame-relay map ip 172.16.56.6 501 broadcast no frame-relay inverse-arp frame-relay lmi-type cisco ! router ospf 1 log-adjacency-changes area 1 virtual-link 192.168.2.2 network 172.16.56.0 0.0.0.7 area 1 network 172.16.200.0 0.0.0.127 area 0 network 192.168.5.5 0.0.0.0 area 5 ! R6 interface Serial0 ip address 172.16.56.6 255.255.255.248 encapsulation frame-relay ip ospf network point-to-multipoint frame-relay map ip 172.16.56.2 601 broadcast frame-relay map ip 172.16.56.5 601 broadcast frame-relay map ip 172.16.56.6 601 no frame-relay inverse-arp frame-relay lmi-type cisco ! interface FastEthernet0 ip address 172.16.200.6 255.255.255.128 ip ospf hello-interval 15 half-duplex ! router ospf 1 log-adjacency-changes area 1 virtual-link 192.168.2.2 network 172.16.56.0 0.0.0.7 area 1 network 172.16.200.0 0.0.0.127 area 0 network 192.168.6.6 0.0.0.0 area 6 ! R2#sh ip ospf vir Virtual Link OSPF_VL5 to router 192.168.5.5 is down Run as demand circuit DoNotAge LSA allowed. Transit area 1, Cost of using 65535 Transmit Delay is 1 sec, State DOWN, Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 Virtual Link OSPF_VL4 to router 192.168.6.6 is down Run as demand circuit DoNotAge LSA allowed. Transit area 1, Cost of using 65535 Transmit Delay is 1 sec, State DOWN, Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 R2# Trust me on the router-IDs for the virtual link statements - I have triple-checked them. I have reloaded the routers with no luck. What am I missing here?! Thanks! Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69640&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Virtual Link Problem [7:69640]
I cant see a problem here, but I have been caught on this one before when using MD5 authentication. Remember when using MD5 authentication in Area 0 the R2 will have a direct connection into Area 0 after the virtual link has been made so needs to have MD5 authentication as well. You can also do MD5 authentication on the virtual link itself, this was what I was trying to do and got confused with the MD5 authentication between R2 and Area 0. When I removed all the MD5 authentication it still would come up. In the end I removed the config and started again, bingo it came up - Original Message - From: "Kevin Love" To: Sent: Wednesday, May 28, 2003 5:37 AM Subject: Virtual Link Problem [7:69640] > Hey Team, > > I cannot figure this out. I've configured lots of virtual links, but no > matter what I do this isn't working. I had md5 authentication configured > for Area 0, but to isolate the problem, I removed authentication and the > virtual link still isn't up. I need another set of eyes (or two) looking at > this. Please help if you can! > > Here's the topology: > > Area 2 (Loopback 0) > | > R2 >\ > \ > FR >Area 1 > /\ > R5R6 > \/ >Area 0 > Ethernet > > Here are the salient config snippets: > > R2 > ! > interface Loopback0 > ip address 192.168.2.2 255.255.255.255 > ip ospf network point-to-point > ! > interface Serial1.256 multipoint > ip address 172.16.56.2 255.255.255.248 > ip ospf priority 255 > frame-relay map ip 172.16.56.2 105 > frame-relay map ip 172.16.56.5 105 broadcast > frame-relay map ip 172.16.56.6 106 broadcast > no frame-relay inverse-arp > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.5.5 > area 1 virtual-link 192.168.6.6 > network 172.16.56.0 0.0.0.7 area 1 > network 192.168.2.2 0.0.0.0 area 2 > ! > > R5 > > interface Ethernet0 > ip address 172.16.200.5 255.255.255.128 > ip ospf hello-interval 15 > ! > interface Serial0 > ip address 172.16.56.5 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 501 broadcast > frame-relay map ip 172.16.56.5 501 > frame-relay map ip 172.16.56.6 501 broadcast > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.5.5 0.0.0.0 area 5 > ! > > R6 > > interface Serial0 > ip address 172.16.56.6 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 601 broadcast > frame-relay map ip 172.16.56.5 601 broadcast > frame-relay map ip 172.16.56.6 601 > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > interface FastEthernet0 > ip address 172.16.200.6 255.255.255.128 > ip ospf hello-interval 15 > half-duplex > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.6.6 0.0.0.0 area 6 > ! > > R2#sh ip ospf vir > Virtual Link OSPF_VL5 to router 192.168.5.5 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 > Virtual Link OSPF_VL4 to router 192.168.6.6 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 > R2# > > Trust me on the router-IDs for the virtual link statements - I have > triple-checked them. I have reloaded the routers with no luck. What am I > missing here?! > > Thanks! > Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69653&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Virtual Link Problem [7:69640]
Dont really have time at the moment to look into this, but something that you may want to investigate is the different LSA adverts sent out by different interface types in OSPF. Depending on the type of interface OSPF behaves different;y, ie different HELO timers, differnet DEAD timers etc. You need to ensure that all neighbors within the area are using the same type. You can change this using the interface command ip ospf network Full details of of various interface types and how they affect OSPF can be found on http://www.chuckslongroad.info/OSPF_Frame_Reference.htm Kevin Love wrote: > > Hey Team, > > I cannot figure this out. I've configured lots of virtual > links, but no matter what I do this isn't working. I had md5 > authentication configured for Area 0, but to isolate the > problem, I removed authentication and the virtual link still > isn't up. I need another set of eyes (or two) looking at > this. Please help if you can! > > Here's the topology: > > Area 2 (Loopback 0) > | > R2 >\ > \ > FR >Area 1 > /\ > R5R6 > \/ >Area 0 > Ethernet > > Here are the salient config snippets: > > R2 > ! > interface Loopback0 > ip address 192.168.2.2 255.255.255.255 > ip ospf network point-to-point > ! > interface Serial1.256 multipoint > ip address 172.16.56.2 255.255.255.248 > ip ospf priority 255 > frame-relay map ip 172.16.56.2 105 > frame-relay map ip 172.16.56.5 105 broadcast > frame-relay map ip 172.16.56.6 106 broadcast > no frame-relay inverse-arp > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.5.5 > area 1 virtual-link 192.168.6.6 > network 172.16.56.0 0.0.0.7 area 1 > network 192.168.2.2 0.0.0.0 area 2 > ! > > R5 > > interface Ethernet0 > ip address 172.16.200.5 255.255.255.128 > ip ospf hello-interval 15 > ! > interface Serial0 > ip address 172.16.56.5 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 501 broadcast > frame-relay map ip 172.16.56.5 501 > frame-relay map ip 172.16.56.6 501 broadcast > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.5.5 0.0.0.0 area 5 > ! > > R6 > > interface Serial0 > ip address 172.16.56.6 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 601 broadcast > frame-relay map ip 172.16.56.5 601 broadcast > frame-relay map ip 172.16.56.6 601 > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > interface FastEthernet0 > ip address 172.16.200.6 255.255.255.128 > ip ospf hello-interval 15 > half-duplex > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.6.6 0.0.0.0 area 6 > ! > > R2#sh ip ospf vir > Virtual Link OSPF_VL5 to router 192.168.5.5 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, > Retransmit 5 > Virtual Link OSPF_VL4 to router 192.168.6.6 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, > Retransmit 5 > R2# > > Trust me on the router-IDs for the virtual link statements - I > have triple-checked them. I have reloaded the routers with no > luck. What am I missing here?! > > Thanks! > Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69663&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Virtual Link Problem [7:69640]
Hi Kevin, can you set the default values for ospf hello interval. can you post the result of "show ip ospf int" and "show ip ospf data" from all the three routers. NetChild, ""Kevin Love"" wrote in message news:[EMAIL PROTECTED] > Hey Team, > > I cannot figure this out. I've configured lots of virtual links, but no > matter what I do this isn't working. I had md5 authentication configured > for Area 0, but to isolate the problem, I removed authentication and the > virtual link still isn't up. I need another set of eyes (or two) looking at > this. Please help if you can! > > Here's the topology: > > Area 2 (Loopback 0) > | > R2 >\ > \ > FR >Area 1 > /\ > R5R6 > \/ >Area 0 > Ethernet > > Here are the salient config snippets: > > R2 > ! > interface Loopback0 > ip address 192.168.2.2 255.255.255.255 > ip ospf network point-to-point > ! > interface Serial1.256 multipoint > ip address 172.16.56.2 255.255.255.248 > ip ospf priority 255 > frame-relay map ip 172.16.56.2 105 > frame-relay map ip 172.16.56.5 105 broadcast > frame-relay map ip 172.16.56.6 106 broadcast > no frame-relay inverse-arp > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.5.5 > area 1 virtual-link 192.168.6.6 > network 172.16.56.0 0.0.0.7 area 1 > network 192.168.2.2 0.0.0.0 area 2 > ! > > R5 > > interface Ethernet0 > ip address 172.16.200.5 255.255.255.128 > ip ospf hello-interval 15 > ! > interface Serial0 > ip address 172.16.56.5 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 501 broadcast > frame-relay map ip 172.16.56.5 501 > frame-relay map ip 172.16.56.6 501 broadcast > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.5.5 0.0.0.0 area 5 > ! > > R6 > > interface Serial0 > ip address 172.16.56.6 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 601 broadcast > frame-relay map ip 172.16.56.5 601 broadcast > frame-relay map ip 172.16.56.6 601 > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > interface FastEthernet0 > ip address 172.16.200.6 255.255.255.128 > ip ospf hello-interval 15 > half-duplex > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.6.6 0.0.0.0 area 6 > ! > > R2#sh ip ospf vir > Virtual Link OSPF_VL5 to router 192.168.5.5 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 > Virtual Link OSPF_VL4 to router 192.168.6.6 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 > R2# > > Trust me on the router-IDs for the virtual link statements - I have > triple-checked them. I have reloaded the routers with no luck. What am I > missing here?! > > Thanks! > Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69679&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Virtual Link Problem [7:69640]
R2#sh ip ospf int Serial1.256 is up, line protocol is up Internet Address 172.16.56.2/29, Area 1 Process ID 1, Router ID 192.168.2.2, Network Type NON_BROADCAST, Cost: 64 Transmit Delay is 1 sec, State DR, Priority 255 Designated Router (ID) 192.168.2.2, Interface address 172.16.56.2 Backup Designated router (ID) 192.168.6.6, Interface address 172.16.56.6 Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 Hello due in 00:00:07 Index 1/3, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 2, maximum is 8 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 192.168.5.5 Adjacent with neighbor 192.168.6.6 (Backup Designated Router) Suppress hello for 0 neighbor(s) Loopback0 is up, line protocol is up Internet Address 192.168.2.2/32, Area 2 Process ID 1, Router ID 192.168.2.2, Network Type POINT_TO_POINT, Cost: 1 Transmit Delay is 1 sec, State POINT_TO_POINT, Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Index 1/4, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 0, maximum is 0 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 0, Adjacent neighbor count is 0 Suppress hello for 0 neighbor(s) R2#sh ip ospf data OSPF Router with ID (192.168.2.2) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 192.168.2.2 192.168.2.2 803 0x8015 0x0079D8 0 Router Link States (Area 1) Link ID ADV Router Age Seq# Checksum Link count 192.168.2.2 192.168.2.2 284 0x8017 0x00A072 1 192.168.5.5 192.168.5.5 268 0x8016 0x004A3C 2 192.168.6.6 192.168.6.6 612 0x8016 0x004C34 2 Net Link States (Area 1) Link ID ADV Router Age Seq# Checksum 172.16.56.2 192.168.2.2 284 0x8015 0x003C32 Summary Net Link States (Area 1) Link ID ADV Router Age Seq# Checksum 172.16.56.5 192.168.6.6 11300x8014 0x00F0C8 172.16.56.6 192.168.5.5 777 0x8014 0x004E63 172.16.69.0 192.168.5.5 777 0x8014 0x006B02 172.16.69.0 192.168.6.6 613 0x8015 0x00F77C 172.16.90.128 192.168.5.5 777 0x8014 0x009A3F 172.16.90.128 192.168.6.6 613 0x8015 0x0027B9 172.16.200.0192.168.5.5 528 0x801C 0x004757 172.16.200.0192.168.6.6 875 0x801A 0x00E3C3 192.168.5.5 192.168.5.5 269 0x8015 0x00033E 192.168.5.5 192.168.6.6 11310x8014 0x00023D 192.168.6.6 192.168.5.5 777 0x8014 0x0054E1 192.168.6.6 192.168.6.6 613 0x8015 0x00E05C Summary ASB Link States (Area 1) Link ID ADV Router Age Seq# Checksum 192.168.9.9 192.168.5.5 777 0x8014 0x007F70 192.168.9.9 192.168.6.6 613 0x8015 0x000CEA Router Link States (Area 2) Link ID ADV Router Age Seq# Checksum Link count 192.168.2.2 192.168.2.2 287 0x8016 0x00854D 1 Type-5 AS External Link States Link ID ADV Router Age Seq# Checksum Tag 11.4.102.4 192.168.2.2 806 0x8013 0x004F58 0 11.4.104.4 192.168.2.2 807 0x8013 0x00396C 0 172.16.10.0 192.168.2.2 546 0x8013 0x00B21A 0 172.16.12.0 192.168.2.2 546 0x8013 0x009C2E 0 172.16.24.0 192.168.2.2 807 0x8013 0x00FC52 0 192.16.40.0 192.168.2.2 807 0x8013 0x0059CE 0 192.168.9.9 192.168.9.9 464 0x8015 0x00CEC6 0 R2# R5#sh ip ospf int Ethernet0 is up, line protocol is up Internet Address 172.16.200.5/25, Area 0 Process ID 1, Router ID 192.168.5.5, Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State DROTHER, Priority 1 Designated Router (ID) 192.168.7.7, Interface address 172.16.200.7 Backup Designated router (ID) 192.168.6.6, Interface address 172.16.200.6 Timer intervals configured, Hello 15, Dead 60, Wait 60, Retransmit 5 Hello due in 00:00:02 Index 2/3, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 3, maximum is 4 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 192.168.7.7 (Designated Router) Adjacent with neighbor 192.168.6.6 (Backup Designated Router) Suppress hello for 0 neighbor(s) Serial0 is up, line protocol is up Internet Address 172.16.56.5/29, Area 1 Process ID 1, Router ID 192.168.5.5, Network Type POINT_TO_MULTIPOINT, Cost: 6 4 Transmit Delay is 1 sec, St
Re: Virtual Link Problem [7:69640]
Kevin, It might just be an oversight, but R5 and R6 don't seem to have a loopback or explicit router ID defined. Also, what is the OSPF network type on R2? It's set manually on R5 and R6, but left to the default on R2. I believe (but haven't verified) the default would be non-broadcast not point-to-multipoint. - Tom Kevin Love wrote: > Hey Team, > > I cannot figure this out. I've configured lots of virtual links, but no > matter what I do this isn't working. I had md5 authentication configured > for Area 0, but to isolate the problem, I removed authentication and the > virtual link still isn't up. I need another set of eyes (or two) looking at > this. Please help if you can! > > Here's the topology: > > Area 2 (Loopback 0) > | > R2 >\ > \ > FR >Area 1 > /\ > R5R6 > \/ >Area 0 > Ethernet > > Here are the salient config snippets: > > R2 > ! > interface Loopback0 > ip address 192.168.2.2 255.255.255.255 > ip ospf network point-to-point > ! > interface Serial1.256 multipoint > ip address 172.16.56.2 255.255.255.248 > ip ospf priority 255 > frame-relay map ip 172.16.56.2 105 > frame-relay map ip 172.16.56.5 105 broadcast > frame-relay map ip 172.16.56.6 106 broadcast > no frame-relay inverse-arp > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.5.5 > area 1 virtual-link 192.168.6.6 > network 172.16.56.0 0.0.0.7 area 1 > network 192.168.2.2 0.0.0.0 area 2 > ! > > R5 > > interface Ethernet0 > ip address 172.16.200.5 255.255.255.128 > ip ospf hello-interval 15 > ! > interface Serial0 > ip address 172.16.56.5 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 501 broadcast > frame-relay map ip 172.16.56.5 501 > frame-relay map ip 172.16.56.6 501 broadcast > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.5.5 0.0.0.0 area 5 > ! > > R6 > > interface Serial0 > ip address 172.16.56.6 255.255.255.248 > encapsulation frame-relay > ip ospf network point-to-multipoint > frame-relay map ip 172.16.56.2 601 broadcast > frame-relay map ip 172.16.56.5 601 broadcast > frame-relay map ip 172.16.56.6 601 > no frame-relay inverse-arp > frame-relay lmi-type cisco > ! > interface FastEthernet0 > ip address 172.16.200.6 255.255.255.128 > ip ospf hello-interval 15 > half-duplex > ! > router ospf 1 > log-adjacency-changes > area 1 virtual-link 192.168.2.2 > network 172.16.56.0 0.0.0.7 area 1 > network 172.16.200.0 0.0.0.127 area 0 > network 192.168.6.6 0.0.0.0 area 6 > ! > > R2#sh ip ospf vir > Virtual Link OSPF_VL5 to router 192.168.5.5 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 > Virtual Link OSPF_VL4 to router 192.168.6.6 is down > Run as demand circuit > DoNotAge LSA allowed. > Transit area 1, Cost of using 65535 > Transmit Delay is 1 sec, State DOWN, > Timer intervals configured, Hello 10, 40, Wait 40, Retransmit 5 > R2# > > Trust me on the router-IDs for the virtual link statements - I have > triple-checked them. I have reloaded the routers with no luck. What am I > missing here?! > > Thanks! > Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69720&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Virtual Link Problem [7:69640]
Check your network types on the connections between r2 and r5 and r2 and r6. Cheers, Scott ""Kevin Love"" wrote in message news:[EMAIL PROTECTED] > R2#sh ip ospf int > Serial1.256 is up, line protocol is up > Internet Address 172.16.56.2/29, Area 1 > Process ID 1, Router ID 192.168.2.2, Network Type NON_BROADCAST, Cost: 64 > Transmit Delay is 1 sec, State DR, Priority 255 > Designated Router (ID) 192.168.2.2, Interface address 172.16.56.2 > Backup Designated router (ID) 192.168.6.6, Interface address 172.16.56.6 > Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 > Hello due in 00:00:07 > Index 1/3, flood queue length 0 > Next 0x0(0)/0x0(0) > Last flood scan length is 2, maximum is 8 > Last flood scan time is 0 msec, maximum is 0 msec > Neighbor Count is 2, Adjacent neighbor count is 2 > Adjacent with neighbor 192.168.5.5 > Adjacent with neighbor 192.168.6.6 (Backup Designated Router) > Suppress hello for 0 neighbor(s) > Loopback0 is up, line protocol is up > Internet Address 192.168.2.2/32, Area 2 > Process ID 1, Router ID 192.168.2.2, Network Type POINT_TO_POINT, Cost: 1 > Transmit Delay is 1 sec, State POINT_TO_POINT, > Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 > Index 1/4, flood queue length 0 > Next 0x0(0)/0x0(0) > Last flood scan length is 0, maximum is 0 > Last flood scan time is 0 msec, maximum is 0 msec > Neighbor Count is 0, Adjacent neighbor count is 0 > Suppress hello for 0 neighbor(s) > R2#sh ip ospf data > > OSPF Router with ID (192.168.2.2) (Process ID 1) > > Router Link States (Area 0) > > Link ID ADV Router Age Seq# Checksum Link count > 192.168.2.2 192.168.2.2 803 0x8015 0x0079D8 0 > > Router Link States (Area 1) > > Link ID ADV Router Age Seq# Checksum Link count > 192.168.2.2 192.168.2.2 284 0x8017 0x00A072 1 > 192.168.5.5 192.168.5.5 268 0x8016 0x004A3C 2 > 192.168.6.6 192.168.6.6 612 0x8016 0x004C34 2 > > Net Link States (Area 1) > > Link ID ADV Router Age Seq# Checksum > 172.16.56.2 192.168.2.2 284 0x8015 0x003C32 > > Summary Net Link States (Area 1) > > Link ID ADV Router Age Seq# Checksum > 172.16.56.5 192.168.6.6 11300x8014 0x00F0C8 > 172.16.56.6 192.168.5.5 777 0x8014 0x004E63 > 172.16.69.0 192.168.5.5 777 0x8014 0x006B02 > 172.16.69.0 192.168.6.6 613 0x8015 0x00F77C > 172.16.90.128 192.168.5.5 777 0x8014 0x009A3F > 172.16.90.128 192.168.6.6 613 0x8015 0x0027B9 > 172.16.200.0192.168.5.5 528 0x801C 0x004757 > 172.16.200.0192.168.6.6 875 0x801A 0x00E3C3 > 192.168.5.5 192.168.5.5 269 0x8015 0x00033E > 192.168.5.5 192.168.6.6 11310x8014 0x00023D > 192.168.6.6 192.168.5.5 777 0x8014 0x0054E1 > 192.168.6.6 192.168.6.6 613 0x8015 0x00E05C > > Summary ASB Link States (Area 1) > > Link ID ADV Router Age Seq# Checksum > 192.168.9.9 192.168.5.5 777 0x8014 0x007F70 > 192.168.9.9 192.168.6.6 613 0x8015 0x000CEA > > Router Link States (Area 2) > > Link ID ADV Router Age Seq# Checksum Link count > 192.168.2.2 192.168.2.2 287 0x8016 0x00854D 1 > > Type-5 AS External Link States > > Link ID ADV Router Age Seq# Checksum Tag > 11.4.102.4 192.168.2.2 806 0x8013 0x004F58 0 > 11.4.104.4 192.168.2.2 807 0x8013 0x00396C 0 > 172.16.10.0 192.168.2.2 546 0x8013 0x00B21A 0 > 172.16.12.0 192.168.2.2 546 0x8013 0x009C2E 0 > 172.16.24.0 192.168.2.2 807 0x8013 0x00FC52 0 > 192.16.40.0 192.168.2.2 807 0x8013 0x0059CE 0 > 192.168.9.9 192.168.9.9 464 0x8015 0x00CEC6 0 > R2# > > > R5#sh ip ospf int > Ethernet0 is up, line protocol is up > Internet Address 172.16.200.5/25, Area 0 > Process ID 1, Router ID 192.168.5.5, Network Type BROADCAST, Cost: 10 > Transmit Delay is 1 sec, State DROTHER, Priority 1 > Designated Router (ID) 192.168.7.7, Interface address 172.16.200.7 > Backup Designated router (ID) 192.168.6.6, Interface address 172.16.200.6 > Timer intervals configured, Hello 15, Dead 60, Wait 60, Retransmit 5 > Hello due in 00:00:02 > Index 2/3, flood queue length 0 > Next 0x0(0)/0x0(0) > Last flood scan length is 3, maximum is 4 > Last flood scan time is 0 msec, maximum is 0 msec > Neighbor Count is 2, Adjacent neighbor count is 2 > Adjace
Re: Virtual Link Problem [7:69640]
Tom, Congratulations, it appears that you hit the nail right on the head. Router ID was not an issue - I just failed to show you the loopback interfaces. The issue was apparently network type. As soon as I hard-set R2s network type to point-to-multipoint (it was, as you correctly pointed out, non-broadcast by default), the virtual link came up. What I now don't understand is why I had a full neighbor relationship before I changed the network type. Shouldn't the mismatch have caused my neighbor relationship to be affected? Thanks for the tip! Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69730&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Virtual Link Problem [7:69640]
Hi, Congratulation that you solve it out. > network type. Shouldn't the mismatch have caused my neighbor relationship > to be affected? Since OPSF network type was non-broadcast network, the hello interval is 30 second and the dead interval is 120. These interval times match the point-to-multipoint and this meet the need to form neighboring relationship. However, these will not help to run OSPF correctly. The behavior of non-broadcast is different that point-to-multipoint. Example, From the result of "show ip ospf int" The network was nonbroadcast and there is BDR. In point-to-multipoint there is no DR/BDR. Please correct me if I'm wrong, Netchild, ""Kevin Love"" wrote in message news:[EMAIL PROTECTED] > Tom, > > Congratulations, it appears that you hit the nail right on the head. Router > ID was not an issue - I just failed to show you the loopback interfaces. > The issue was apparently network type. As soon as I hard-set R2s network > type to point-to-multipoint (it was, as you correctly pointed out, > non-broadcast by default), the virtual link came up. What I now don't > understand is why I had a full neighbor relationship before I changed the > network type. Shouldn't the mismatch have caused my neighbor relationship > to be affected? > > Thanks for the tip! > Kevin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69766&t=69640 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
