display mpls ldp event adjacency-down

Function

The display mpls ldp event adjacency-down command displays information about Down adjacencies.

Format

display mpls ldp event adjacency-down [ interface { interface-type interface-num | interface-name } | remote ] [ peer peer-id ]

display mpls ldp event adjacency-down [ interface { interface-type interface-num | interface-name } | remote ] [ peer peer-id ] verbose

display mpls ldp event adjacency-down vpn-instance vpn-instance-name [ interface { interface-type interface-num | interface-name } ] [ peer peer-id ]

display mpls ldp event adjacency-down vpn-instance vpn-instance-name [ interface { interface-type interface-num | interface-name } ] [ peer peer-id ] verbose

Parameters

Parameter	Description	Value
interface interface-type interface-num	Specifies the type and number of an interface to display the event that an LDP adjacency goes Down on a specified interface.	-
interface-name	Specifies interface name to display the event that an LDP adjacency goes Down on a specified interface.	-
remote	Specifies the LSR ID of a remote LDP peer. If the parameter is specified, the event that an LDP adjacency with a specified remote peer goes Down is displayed.	-
peer peer-id	Specifies the LSR ID of an LDP peer. If the parameter is specified, the event that an LDP adjacency with a specified peer goes Down is displayed.	The value is in dotted decimal notation.
verbose	Displays detailed information.	-
vpn-instance vpn-instance-name	Displays events that LDP adjacencies in a specified VPN instance go Down.	The value is a string of 1 to 31 case-sensitive characters. It cannot contain spaces. The VPN instance name cannot be <b>_public_</b>. However, the character string can contain spaces if it is enclosed with double quotation marks (").

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
mpls-ldp	read

Usage Guidelines

Usage Scenario

To view the event that an LDP adjacency went Down, run the display mpls ldp event adjacency-down command. The information includes the time, reason, and duration of the LDP adjacency.

Precautions

A maximum of 1024 events can be displayed.

Example

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

# Display detailed information about an LDP adjacency that went Down.

<HUAWEI> display mpls ldp event adjacency-down verbose
LDP Adjacency Down Information
--------------------------------------------------------------------------------
 SN                          : 1
 PeerID                      : 2.2.2.2:0
 VrfIndex                    : 0
 Down Time                   : 2011-09-29 05:52:24
 Duration Time               : 0 days, 01:17:55
 MaxInterval Time(sec)       : 6
 Reason                      : Interface Down
 Type                        : IPv4/Local Adjacency
 Discovery Source            : GigabitEthernet0/1/17
--------------------------------------------------------------------------------
 SN                          : 2
 PeerID                      : 2.2.2.2:0
 VrfIndex                    : 0
 Down Time                   : 2011-09-29 06:11:04
 Duration Time               : 0 days, 00:14:14
 MaxInterval Time(sec)       : 5
 Reason                      : Interface Down
 Type                        : IPv4/Local Adjacency
 Discovery Source            : GigabitEthernet0/1/17
--------------------------------------------------------------------------------
 SN                          : 3
 PeerID                      : 2.2.2.2:0
 VrfIndex                    : 0
 Down Time                   : 2011-09-29 12:32:58
 Duration Time               : 0 days, 01:19:00
 MaxInterval Time(sec)       : 5
 Reason                      : Interface Down
 Type                        : IPv6/Local Adjacency
 Discovery Source            : GigabitEthernet0/1/16
--------------------------------------------------------------------------------
 SN                          : 4
 PeerID                      : 3.3.3.3:0
 VrfIndex                    : 0
 Down Time                   : 2011-09-13 04:23:32
 Duration Time               : 0 days, 00:00:47
 MaxInterval Time(sec)       : 0
 Reason                      : IGP delete the RLFA IID
 Type                        : Remote Adjacency
 Discovery Source            : -
--------------------------------------------------------------------------------
 TOTAL: 4 Record(s) Found, 3 IPv4 Record(s), 1 IPv6 Record(s).

# Display information about an LDP adjacency that went Down.

<HUAWEI> display mpls ldp event adjacency-down
LDP Adjacency Down Information
--------------------------------------------------------------------------------
 PeerID            Down Date  Down Time              Duration Time    Reason
--------------------------------------------------------------------------------
 2.2.2.2:0         2011-09-13 04:23:17               0 days, 00:01:07 C
 2.2.2.2:0         2011-09-13 04:23:32               0 days, 00:00:12 C
 2.2.2.2:0         2011-09-16 02:52:55               2 days, 22:29:09 C
 3.3.3.3:0         2011-09-13 04:23:32               0 days, 00:00:47 O
--------------------------------------------------------------------------------
 TOTAL: 3 Record(s) Found
 A : The Adjacency is down because Hello Timer Expired.
 C : The administrator configuration to trigger.
 O : Other reason.

**Table 1** Description of the **display mpls ldp event adjacency-down** command output
Item	Description
Down Date	Date when an LDP adjacency went Down.
Down Time	Time when an LDP adjacency went Down.
SN	-
PeerID	IP address of a peer.
VrfIndex	ID of a VPN instance.
Duration Time	Time elapsed since an LDP adjacency was established.
MaxInterval Time(sec)	Maximum interval at which Hello messages are sent.
Reason	Reason why a neighbor went Down: A: The Hello timer expired. C: The configuration was modified by the user. O: other reasons.
Reason	Reason why a neighbor went Down: Hello Timer Expired: The Hello timer expired. LDP Interface Disable: LDP was disabled on the interface. Remote Peer Delete: The remote peer configuration was deleted. Transport Address Delete: The transport address was deleted. Adjacency Stale: The adjacency aged. Interface Down: The interface went Down. IGP delete the RLFA IID:IGP: The RLFA IID was deleted.
Type	Neighbor type: IPv4/Local Adjacency: adjacency on an IPv4 direct link. IPv6/Local Adjacency: adjacency on an IPv6 direct link. Remote Adjacency: adjacency on an indirect link.
Discovery Source	Interface on which an LDP peer is discovered.