display isis lsdb history

Function

The display isis lsdb history command displays information about a backup LSDB.

Format

display isis [ process-id ] lsdb [ { level-1 | level-2 } | verbose [ no-name ] ] ^* history history-id

Parameters

Parameter	Description	Value
process-id	Specifies the ID of an IS-IS process.	The value is an integer ranging from 1 to 4294967295.
level-1	Displays information about a backup Level-1 LSDB.	-
level-2	Displays information about a backup Level-2 LSDB. If no level is specified, information about Level-1 and Level-2 LSDBs is displayed.	-
verbose	Displays detailed information about a backup LSDB.	-
no-name	Displays detailed information about the LSDB, without the alias information.	-
history history-id	Specifies the number of times an LSDB is backed up.	The value is 1 or 2.

Views

All views

Default Level

3: Management level

Task Name and Operations

Task Name	Operations
isis	debug

Usage Guidelines

Usage Scenario

If IS-IS LSPs are purged, you can run the display isis lsdb history command to assist troubleshooting.

If IS-IS LSPs are purged, the current LSDB may be incomplete. In this case, you can run the display isis lsdb history command to check information about a backup LSDB. The command output helps with troubleshooting.
All local LSPs are backed up, and the LSPs received from other devices that have neighbors are also backed up.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display detailed information about a backup LSDB.

<HUAWEI> display isis lsdb verbose history 1
Backup Time : 2016-09-24 07:57:32                         
                        Database information for ISIS(1)
                        -----------------------------------
                        Level-1 Link State Database
LSPID                  Seq Num    Checksum   HoldTime       Length   ATT/P/OL
-----------------------------------------------------------------------------
0000.0000.0001.00-00*  0x00000019 0x5bb7     920            87       0/0/0
  SOURCE       router1wwwww.00
  HOST NAME    router1wwwww
  NLPID        IPV4
  NLPID        IPV6
  AREA ADDR    01
  INTF ADDR    1.1.1.1
  Topology     Standard
  NBR  ID      0000.0000.0002.01  COST: 10
  IP-Internal  1.1.1.0         255.255.255.0    COST: 10

0000.0000.0002.00-00   0x00000019 0xc561     922            89       0/0/0
  SOURCE       0000.0000.0002.00
  NLPID        IPV4
  NLPID        IPV6
  AREA ADDR    01
  INTF ADDR    1.1.1.2
  INTF ADDR    2.2.2.2
  Topology     Standard
  NBR  ID      0000.0000.0002.01  COST: 10
  IP-Internal  1.1.1.0         255.255.255.0    COST: 10
  IP-Internal  2.2.2.0         255.255.255.0    COST: 10

0000.0000.0002.01-00   0x00000016 0x6580     922            56       0/0/0
  SOURCE       0000.0000.0002.01
  NLPID        IPV4
  NLPID        IPV6
  NBR  ID      0000.0000.0002.00  COST: 0
  NBR  ID      router1wwwww.00  COST: 0

Total LSP(s): 3
    *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),
           ATT-Attached, P-Partition, OL-Overload

# Display information about a backup LSDB.

<HUAWEI> display isis lsdb history 1
Backup Time : 2016-09-24 07:57:32                         
                        Database information for ISIS(1)                        
-------------------------------------------------------------------------------
                          Level-1 Link State Database
LSPID                 Seq Num      Checksum      HoldTime      Length  ATT/P/OL
-------------------------------------------------------------------------------
router1wwwww.00-00*   0x00000019   0x5bb7        920           87      0/0/0   
0000.0000.0002.00-00  0x00000019   0xc561        922           89      0/0/0   
0000.0000.0002.01-00  0x00000016   0x6580        922           56      0/0/0   
Total LSP(s): 3    *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),
           ATT-Attached, P-Partition, OL-Overload

**Table 1** Description of the **display isis lsdb history** command output
Item	Description
Backup Time	Backup time.
LSPID	ID of an LSP.
Seq Num	Sequence number of an LSP.
Checksum	Checksum of an LSP.
HoldTime	Hold time of an LSP.
Length	LSP length.
ATT/P/OL	Attach bit (ATT). Partition bit (P). Overload bit (OL).
SOURCE	System ID of the source node.
HOST NAME	Dynamic hostname.
NLPID	Network protocol supported.
AREA ADDR	Area address.
INTF ADDR	IPv4 address of an interface.
Topology	Topology type.
NBR ID	System ID of a neighbor.
IP-Internal	Intra-area IPv4 route information.
Total LSP(s)	Total number of LSPs.
*(In TLV)	leaked route.
*(By LSPID)	Local LSP.
Len	Authentication password length.
COST	Cost.