Tip

This is the documentation for the 19.12 version. Looking for the documentation of the latest version? Have a look here.

OSPF Status¶

TNSR supports several commands to display information about the OSPF daemon configuration and its status.

Configuration Information¶

To view the OSPF configuration:

tnsr(config)# show route dynamic ospf config
interface GigabitEthernet3/0/0
    ip ospf area 0.0.0.0
exit
interface TenGigabitEthernet6/0/0
    ip ospf area 0.0.0.0
    ip ospf cost 10
exit
router ospf
    ospf router-id 10.2.0.1
    passive-interface GigabitEthernet3/0/0

Status Information¶

To view the OSPF database:

tnsr(config)# show route dynamic ospf database

       OSPF Router with ID (10.2.0.1)

                Router Link States (Area 0.0.0.0)

Link ID         ADV Router      Age  Seq#       CkSum  Link count
10.2.0.1        10.2.0.1         129 0x80000005 0x6808 2
10.25.0.1       10.25.0.1        157 0x80000005 0x45ce 2

                Net Link States (Area 0.0.0.0)

Link ID         ADV Router      Age  Seq#       CkSum
203.0.113.25    10.25.0.1        158 0x80000001 0x2e80

Additional more specific information is available by adding a keyword onto the end of the command show route dynamic ospf database <name> where <name> is one of the following choices:

asbr-summary:: Autonomous System Boundary Router (ASBR) database summary.
external:: External link state information.
max-age:: Link State Advertisement (LSA) entries in MaxAge list.
network:: Network link states.
nssa-external:: Not-so-stubby-area external link states.
opaque-area:: Link area Opaque-LSA.
opaque-as:: Link AS Opaque-LSA.
opaque-link:: Link local Opaque-LSA.
router:: Router link states.
self-originate:: Link states originated from this router.
summary:: Network summary link states.

To view information about interfaces participating in OSPF:

tnsr(config)# show route dynamic ospf interface
GigabitEthernet3/0/0 is up
  ifindex 22, MTU 1500 bytes, BW 0 Mbit <UP,RUNNING>
  Internet Address 10.2.0.1/24, Broadcast 10.2.0.255, Area 0.0.0.0
  MTU mismatch detection: enabled
  Router ID 10.2.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  No backup designated router on this network
  Multicast group memberships: <None>
  Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5
    No Hellos (Passive interface)
  Neighbor Count is 0, Adjacent neighbor count is 0
TenGigabitEthernet6/0/0 is up
  ifindex 23, MTU 1500 bytes, BW 0 Mbit <UP,RUNNING>
  Internet Address 203.0.113.2/24, Broadcast 203.0.113.255, Area 0.0.0.0
  MTU mismatch detection: enabled
  Router ID 10.2.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State Backup, Priority 1
  Backup Designated Router (ID) 10.2.0.1, Interface Address 203.0.113.2
  Multicast group memberships: OSPFAllRouters OSPFDesignatedRouters
  Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5
    Hello due in 8.281s
  Neighbor Count is 1, Adjacent neighbor count is 1

To view information about current OSPF neighbors and adjacencies:

tnsr(config)# show route dynamic ospf neighbor

Neighbor ID     Pri State           Dead Time Address         Interface                               RXmtL RqstL DBsmL
10.25.0.1         1 Full/DR           39.774s 203.0.113.25    TenGigabitEthernet6/0/0:203.0.113.2     0     0     0

For more detailed neighbor information, use show route dynamic ospf neighbor detail.

To view information about current OSPF routes:

tnsr(config)# show route dynamic ospf route
============ OSPF network routing table ============
N    10.2.0.0/24           [10] area: 0.0.0.0
                           directly attached to GigabitEthernet3/0/0
N    10.25.0.0/24          [20] area: 0.0.0.0
                           via 203.0.113.25, TenGigabitEthernet6/0/0
N    203.0.113.0/24        [10] area: 0.0.0.0
                           directly attached to TenGigabitEthernet6/0/0

============ OSPF router routing table =============

============ OSPF external routing table ===========

To view information about this OSPF router:

tnsr(config)# show route dynamic ospf router-info
--- Router Information parameters ---
  Router Capabilities: 0x10000000

To view information about all OSPF Area Border Routers (ABR) and Autonomous System Boundary Routers (ASBR):

tnsr(config)# show route dynamic ospf border-routers
============ OSPF router routing table =============
R    10.25.0.1             [10] area: 0.0.0.0, ABR
                           via 203.0.113.25, TenGigabitEthernet6/0/0