Description
Juniper router not receiving the proper TLVs for specific prefix from the Huawei device in the TED database
Symptoms
Huawei was sending two ISIS LSP’s from the same node i.e one is for IPv4 topology and another for IPv6 topology.
The router-id which is sent by the above two System ID’s of Huawei is similar. Ideally it should not be the case, it’s like two nodes within the network have same router-id.
lab@lab> show isis database level 2
IS-IS level 2 link-state database:
LSP ID Sequence Checksum Lifetime Attributes
A.00-00 0xa43 0xb05f 991 L1 L2
A.00-01 0x9fb 0x9019 991 L1 L2
A.00-02 0x9fe 0x5207 991 L1 L2
x.y.z.00-00 0xa78 0xcc63 991 L1 L2
x.y.z.00-01 0x9e4 0x10c2 991 L1 L2
lab@lab> show isis database extensive x.y.z.00 | match router
Allocated length: 382 bytes, Router ID: x.y.z.6
IP router id: x.y.z.6
Allocated length: 284 bytes, Router ID: 0.0.0.0
lab@lab> show isis database extensive A.00-00 | match router
Allocated length: 915 bytes, Router ID: x.y.0.z.6
IPv6 TE Router ID: a:b:c:d::
Solution
Need to check in the network if it is having duplicate router-id, once correcting that it should resolve the above mentioned issue.
Modification History
2023-12-11 : Article Created
Juniper router not receiving the proper TLVs for specific prefix from the Huawei device in the TED database