From: Paul Borghese (pborghese@groupstudy.com)
Date: Thu Aug 25 2005 - 15:46:16 GMT-3
Sounds like an OSPF network type mismatch.
What OSPF network type do you have configured on the interfaces?
Take care,
Paul Borghese
> Sergio,
>
> I'm just guessing but I suspect this problem might have something to do
> with
> the fact you have a trunk between R2 and R3 instead of an etherchannel.
>
> By having a trunk, spanning tree will block all but one of the physical
> links.
>
> Without more detail, I can't be certain but that's my thinking.
>
> HTH, Tim
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Sergio Jiminez A
> Sent: Thursday, August 25, 2005 2:39 PM
> To: ccielab@groupstudy.com
> Subject: PROBLEM WITH " Adv Router is not-reachable " OSPF DATABASE ROUTER
>
> Hi Group,,,
>
>
>
> I have the following problem: SOME OSPF ROUTES ARE IN THE DATABASE BUT
> NOT
> IN THE IP ROUTING TABLE
>
>
>
>
>
> Topology:
>
>
>
>
>
> R1----L3-----R2------TRK/Dot1q--------R3-----L3-----R4
>
>
>
>
>
> Each router has a int loopback 0, this is the router ID.
>
>
>
> R2 and R3 run OSPF in four SVI. All routers are in AREA 0.
>
>
>
>
>
> The problem is that R1 and R2 have the R4 IP Loopback 0(216.230.136.238)
> in
> the database but not in the IP Routing table. R3 has the R4 IP Loopback 0
> (216.230.136.238) in both. Also the subnet between R3 and R4 (/30) isn4t
> in
> the routing table.
>
>
>
> All routers have the same configuration,,,, Also R2, R3 and R4 has the
> Loopbacks of R1.
>
>
>
>
>
>
>
> I verified this document, but It doesn4t have the solution.
>
> http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009481a
> .shtml
>
>
>
>
>
> I really appreciated your help,,,
>
>
>
>
>
> Rgds,,,
>
>
>
>
>
> Sergio Jiminez Arguedas.
>
>
>
>
>
> COMMANDS applied in the routers:
>
>
>
> ___________________________________________________________
>
>
>
> R3#sh ip ospf database router 216.230.136.238
>
>
>
> OSPF Router with ID (216.230.136.227) (Process ID 100)
>
>
>
> Router Link States (Area 0)
>
>
>
> Routing Bit Set on this LSA
>
> LS age: 340
>
> Options: (No TOS-capability, DC)
>
> LS Type: Router Links
>
> Link State ID: 216.230.136.238
>
> Advertising Router: 216.230.136.238
>
> LS Seq Number: 800016CF
>
> Checksum: 0x68A9
>
> Length: 60
>
> Area Border Router
>
> AS Boundary Router
>
> Number of Links: 3
>
>
>
> Link connected to: a Stub Network
>
> (Link ID) Network/subnet number: 10.13.0.0
>
> (Link Data) Network Mask: 255.255.0.0
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 10
>
>
>
> Link connected to: a Transit Network
>
> (Link ID) Designated Router address: 216.230.136.30
>
> (Link Data) Router Interface address: 216.230.136.29
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 10
>
>
>
> Link connected to: a Stub Network
>
> (Link ID) Network/subnet number: 10.12.37.24
>
> (Link Data) Network Mask: 255.255.255.252
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 100
>
>
>
> R3#sh ip route 216.230.136.238
>
> Routing entry for 216.230.136.238/32
>
> Known via "ospf 100", distance 110, metric 20
>
> Tag 238, type extern 2, forward metric 10
>
> Last update from 216.230.136.29 on GigabitEthernet1/13, 01:54:37 ago
>
> Routing Descriptor Blocks:
>
> * 216.230.136.29, from 216.230.136.238, 01:54:37 ago, via
> GigabitEthernet1/13
>
> Route metric is 20, traffic share count is 1
>
> _____________________________________________________________________
>
>
>
> R2#sh ip ospf database router 216.230.136.238
>
>
>
> OSPF Router with ID (216.230.136.226) (Process ID 100)
>
>
>
> Router Link States (Area 0)
>
>
>
> Adv Router is not-reachable
>
> LS age: 893
>
> Options: (No TOS-capability, DC)
>
> LS Type: Router Links
>
> Link State ID: 216.230.136.238
>
> Advertising Router: 216.230.136.238
>
> LS Seq Number: 800016CF
>
> Checksum: 0x68A9
>
> Length: 60
>
> Area Border Router
>
> AS Boundary Router
>
> Number of Links: 3
>
>
>
> Link connected to: a Stub Network
>
> (Link ID) Network/subnet number: 10.13.0.0
>
> (Link Data) Network Mask: 255.255.0.0
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 10
>
>
>
> Link connected to: a Transit Network
>
> (Link ID) Designated Router address: 216.230.136.30
>
> (Link Data) Router Interface address: 216.230.136.29
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 10
>
>
>
> Link connected to: a Stub Network
>
> (Link ID) Network/subnet number: 10.12.37.24
>
> (Link Data) Network Mask: 255.255.255.252
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 100
>
>
>
> R2#sh ip route 216.230.136.238
>
> % Subnet not in table
>
>
>
> _______________________________________________________
>
>
>
>
>
>
>
> R1#sh ip ospf database router 216.230.136.238
>
>
>
> OSPF Router with ID (172.19.100.5) (Process ID 110)
>
>
>
>
>
> OSPF Router with ID (216.230.136.237) (Process ID 100)
>
>
>
>
>
> Router Link States (Area 0)
>
>
>
> Adv Router is not-reachable
>
> LS age: 1056
>
> Options: (No TOS-capability, DC)
>
> LS Type: Router Links
>
> Link State ID: 216.230.136.238
>
> Advertising Router: 216.230.136.238
>
> LS Seq Number: 800016CF
>
> Checksum: 0x68A9
>
> Length: 60
>
> Area Border Router
>
> AS Boundary Router
>
> Number of Links: 3
>
>
>
> Link connected to: a Stub Network
>
> (Link ID) Network/subnet number: 10.13.0.0
>
> (Link Data) Network Mask: 255.255.0.0
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 10
>
>
>
> Link connected to: a Transit Network
>
> (Link ID) Designated Router address: 216.230.136.30
>
> (Link Data) Router Interface address: 216.230.136.29
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 10
>
>
>
> Link connected to: a Stub Network
>
> (Link ID) Network/subnet number: 10.12.37.24
>
> (Link Data) Network Mask: 255.255.255.252
>
> Number of TOS metrics: 0
>
> TOS 0 Metrics: 100
>
>
>
> R1#sh ip route 216.230.136.238
>
> % Subnet not in table
>
> _______________________________________________________________________
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>
> _______________________________________________________________________
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