Displays information about the entries in the LSP database.
Privileged EXEC mode
IS-IS is supported only on devices based on the DNX chipset family. For a list of such devices, see "Supported Hardware".
The show isis database command displays the following information:
|
Output field |
Description |
|---|---|
|
LSPID |
The LSP ID, which consists of the source ID (6 bytes), the pseudonode (1 byte), and LSPID (1 byte). Note: If the address has an asterisk ( * ) at the end, this indicates that the LSP is locally originated.
|
|
LSP Seq Num |
The sequence number of the LSP. |
|
LSP Checksum |
The checksum calculated by the device that sent the LSP and used by the device to verify that the LSP was not corrupted during transmission over the network. |
|
LSP Holdtime |
The maximum number of seconds during which the LSP will remain valid. Note: The IS that originates the LSP sets the timer for the LSP. As a result, LSPs do not all have the same amount of time remaining when they enter the device‘s LSP database.
|
|
ATT |
A 4-bit value extracted from bits 4 - 7 in the Attach field of the LSP. |
|
P |
The value in the Partition option field of the LSP. The field can have one of the following values:
|
|
OL |
The value in the LSP database overload field of the LSP. The field can have one of the following values:
|
|
NLPID |
The Network Layer Protocol Identifier (NLPID), which specifies the protocol the IS that sent the LSP is using. Usually, this value is "CC(IP)". |
|
IP address |
The IP address of the interface that sent the LSP. The device can use this address as the next hop in routes to the addresses listed in the rows below. |
|
Destination addresses |
The rows of information below the IP address row are the destinations advertised by the LSP. The device can reach these destinations by using the IP address listed above as the next hop. Each destination entry contains the following information:
|
|
Flooding to num interface: |
Identifies the number of interfaces on which the specific LSP entry will be flooded and identifies the interfaces. |
|
Acking to num interface: |
Identifies the number of interfaces on which the specific LSP entry will be acknowledged and identifies the interfaces. |
The following is sample output for the show isis database command when no argument or keyword is used.
device# show isis database IS-IS Level-1 Link State Database LSPID Seq Num Checksum Holdtime ATT/P/OL R1.00-00* 0x00000030 0x163a 394 0/0/0 IS-IS Level-2 Link State Database LSPID Seq Num Checksum Holdtime ATT/P/OL R1.00-00* 0x00000030 0xc865 394 0/0/0
The following is sample output for the show isis database command when the detail keyword is used.
device# show isis database detail IS-IS Level-1 Link State Database LSPID Seq Num Checksum Holdtime ATT/P/OL R1.00-00* 0x00000038 0x0642 1095 0/0/0 Area Address: 11 NLPID: IP Hostname: R1 Metric: 10 IP-Internal 1.2.3.4/32 Up: 0 Metric: 10 IP-Internal 11.2.1.16/30 Up: 0 Metric: 10 IP-Internal 11.2.1.0/30 Up: 0 Metric: 10 IP-Internal 11.2.1.8/30 Up: 0 Metric: 10 IP-Internal 11.2.1.4/30 Up: 0 Metric: 10 IP-Internal 11.2.1.12/30 Up: 0 Metric: 10 IP-Internal 11.2.1.24/30 Up: 0 Metric: 10 IP-Internal 11.2.1.20/30 Up: 0 Metric: 10 IP-Internal 11.2.1.32/30 Up: 0 Metric: 10 IP-Internal 11.2.1.28/30 Up: 0 Metric: 10 IP-Internal 11.2.1.36/30 Up: 0 Metric: 10 IS 76:8e:f8:5:58:12. 2 Metric: 10 IS 76:8e:f8:5:58:12. 3 Metric: 10 IS 76:8e:f8:5:58:12. 4 Metric: 10 IS 76:8e:f8:5:58:12. 5 Metric: 10 IS 76:8e:f8:5:58:12. 6 Metric: 10 IS 76:8e:f8:5:58:12. 7 …