show ip ospf database
Shows OSPFv2 database information.
Syntax
Parameters
- database-summary
- Displays how many link state advertisements (LSAs) of each type exist for each area, as well as total number of LSAs.
- external-link-state
- Displays information by external link state, based on the following parameters:
- advertise index
- Displays the hexadecimal data in the specified LSA packet. The index parameter identifies the LSA packet by its position in the router’s External LSA table. To determine an LSA packet’s position in the table, enter the show ip ospf external-link-state command.
- extensive
- Displays LSAs in decrypt format. Do not use this parameter in combination with other display parameters because the entire database is displayed.
- link-state-id id
- Displays external LSAs for the LSA source that you specify.
- router-id router-id
- Displays external LSAs for the advertising router that you specify.
- sequence-number num
- Displays the External LSA entries for the hexadecimal LSA sequence number that you specify.
- link-state
- Displays the link state, based on the following parameters:
- adv-router router-id
- Displays the link state for the advertising router that you specify.
- advertise index
- Displays the hexadecimal data in the specified LSA packet. The index parameter identifies the LSA packet by its position in the router’s external-LSA table. To determine an LSA packet’s position in the table, enter the show ip ospf external-link-state command.
- asbr
- Displays autonomous system boundary router (ASBR) LSAs.
- extensive
- Displays LSAs in decrypt format. Do not use this parameter in combination with other display parameters because the entire database is displayed.
- link-state-id id
- Displays LSAs for the LSA source that you specify.
- network
- Displays either all network LSAs or the LSAs for a network that you specify.
- nssa
- Displays either all NSSA LSAs or the LSAs for a not-so-stubby area (NSSA) that you specify.
- router
- Displays LSAs by router link.
- router-id router-id
- Displays LSAs for the advertising router that you specify.
- self-originate
- Displays self-originated LSAs.
- sequence-number
- Displays the LSA entries for the hexadecimal LSA sequence number that you specify.
- summary
- Displays summary information. You can specify link-state ID or advertising router ID.
- adv-router router-id
- Displays the link state for the advertising router that you specify.
Modes
User EXEC mode
Command Output
The show ip ospf database command displays the following information:
Output field |
Description |
---|---|
Index |
ID of the entry |
Area ID |
ID of the OSPF area |
Type |
Link state type of the route. |
LS ID |
The ID of the link-state advertisement from which the router learned this route. |
Adv Rtr |
ID of the advertised route. |
Seq(Hex) |
The sequence number of the LSA. The OSPF neighbor that sent the LSA stamps the LSA with a sequence number. This number enables the device and other OSPF routers to determine which LSA for a given route is the most recent. |
Age |
The age of the LSA in seconds. |
Chksum |
The checksum for the LSA packet. The checksum is based on all the fields in the packet except the age field. The device uses the checksum to verify that the packet is not corrupted. |
SyncState |
This field indicates whether the synchronization is complete or not. |
Examples
The following example shows output for the show ip ospf database command.
device> show ip ospf database Index Area ID Type LS ID Adv Rtr Seq(Hex) Age Cksum SyncState 1 0.0.0.200 Rtr 192.168.98.111 192.168.98.111 8000003b 626 0xf885 Done 2 0.0.0.200 Rtr 192.168.98.213 192.168.98.213 800000c9 963 0x209c Done 3 0.0.0.200 Rtr 192.168.98.113 192.168.98.113 80000028 169 0x0275 Done 4 0.0.0.200 Rtr 192.168.98.112 192.168.98.112 8000002d 226 0x1c03 Done 5 0.0.0.200 Net 193.113.111.113 192.168.98.113 8000001f 1132 0x353d Done 6 0.0.0.200 Net 192.213.111.213 192.168.98.213 8000002d 1683 0x17bc Done
The following example shows output for the show ip ospf database command when the link-state parameter is used.
device> show ip ospf database link-state Index Area ID Type LS ID Adv Rtr Seq(Hex) Age Cksum SyncState 1 0 Rtr 10.1.10.1 10.1.10.1 800060ef 3 0x4be2 Done 2 0 Rtr 10.65.12.1 10.65.12.1 80005264 6 0xc870 Done 3 0 Net 10.1.64.2 10.65.12.1 8000008c 1088 0x06b7 Done 4 0 Net 10.1.167.2 10.65.12.1 80000093 1809 0x86c8 Done 5 0 Net 10.1.14.2 10.65.12.1 8000008c 1088 0x2ec1 Done 6 0 Net 10.1.117.2 10.65.12.1 8000008c 1087 0xbccb Done 7 0 Net 10.1.67.2 10.65.12.1 8000008c 1088 0xe4d5 Done 8 0 Net 10.1.170.2 10.65.12.1 80000073 604 0xa5c6 Done 9 0 Net 10.1.17.2 10.65.12.1 8000008c 1088 0x0ddf Done 10 0 Net 10.1.120.2 10.65.12.1 8000008c 1087 0x9be9 Done 11 0 Net 10.1.70.2 10.65.12.1 8000008c 1088 0xc3f3 Done 12 0 Net 10.1.173.2 10.65.12.1 80000017 1087 0x3d88 Done 13 0 Net 10.1.20.2 10.65.12.1 8000008c 1088 0xebfd Done 14 0 Net 10.1.123.2 10.65.12.1 8000008c 1087 0x7a08 Done 15 0 Net 10.1.73.2 10.65.12.1 8000008c 1088 0xa212 Done 16 0 Net 10.1.176.2 10.65.12.1 80000025 1087 0xffb4 Done 17 0 Net 10.1.23.2 10.65.12.1 8000008c 1088 0xca1c Done 18 0 Net 10.1.126.2 10.65.12.1 8000008c 1087 0x5926 Done
The following example shows output for the show ip ospf database command when the external-link-state parameter is used.
device> show ip ospf database external-link-state Index Age LS ID Router Netmask Metric Flag Fwd Address SyncState 1 591 10.65.13.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done 2 591 10.65.16.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done 3 591 10.65.14.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done 4 591 10.65.17.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done 5 592 10.65.12.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done 6 592 10.65.15.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done 7 592 10.65.18.0 10.65.12.1 ffffff00 8000000a 0000 0.0.0.0 Done
The following example shows output for the show ip ospf database command when the database-summary parameter is used.
device> show ip ospf database database-summary Area ID Router Network Sum-Net Sum-ASBR NSSA-Ext Opq-Area Subtotal 0.0.0.0 104 184 19 42 0 0 349 AS External 308 Total 104 184 19 42 0 0 657