display mpls last-info lsp-down

Function

The display mpls last-info lsp-down command displays information about LSPs in Down state.

Format

display mpls last-info lsp-down [ protocol ldp ] [ verbose ]

Parameters

Parameter	Description	Value
protocol ldp	Displays information about LSPs in Down state.	-
verbose	Displays detailed information about LDP LSPs.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

If LSPs fail and enter the Down state, run the display mpls last-info lsp-down command to view the faults that cause the latest 64 LSPs to go Down.

Example

# Display brief information about LDP LSPs that just enter the Down state.

<HUAWEI> display mpls last-info lsp-down
-------------------------------------------------------------------------------
                 LDP LSP Information: Host Address
-------------------------------------------------------------------------------
FEC                In/Out Label  Out Interface       Down Reason
10.12.12.12/32     1029/3        vlanif10            route changed
10.12.12.12/32     NULL/3        vlanif10            route changed
10.11.11.11/32     1034/3        vlanif10            cannot recovery from GR
10.11.11.11/32     NULL/3        vlanif10            cannot recovery from GR
10.11.11.11/32     1033/3        vlanif10            DS lost
10.11.11.11/32     NULL/3        vlanif10            DS lost

**Table 1** Description of the display mpls last-info lsp-down command output
Item	Description
FEC	Forwarding equivalence class.
In/Out Label	Values of the incoming and outgoing labels.
Out Interface	Outbound interface.
Down Reason	LSPs go Down due to the following causes: route changed: A route was changed. adjacency changed: An adjacency was changed. cannot recovery from GR: The LDP LSP failed to be reestablished during GR. recv release msg: A Release message was received. recv withdraw msg: A Withdraw message was received. US lost: The session with the upstream node went Down. DS lost: The session with the downstream node went Down. policy changed: The policy to establish LSPs was changed (Generally, configurations of the policy was changed). reach paf limit: PAF resources are insufficient. GR aging: The LSP aged after GR. others

# Display detailed information about LDP LSPs that just enter the Down state.

<HUAWEI> display mpls last-info lsp-down protocol ldp verbose
-------------------------------------------------------------------------------
                 LDP LSP Information: Host Address
-------------------------------------------------------------------------------
  No                  :  1
  VrfIndex            :
  Fec                 :  10.1.1.1/32
  Nexthop             :  127.0.0.1
  In-Label            :  3
  Out-Label           :  NULL
  Out-Interface       :  vlanif13
  LspIndex            :  6144
  Token               :  0x0
  LsrType             :  Egress
  Outgoing token      :  0x0
  Label Operation     :  POP
  Down Time           :  2011/11/08 16:39:59+00:00
  Exist time          :  14sec
  Down Reason         :  policy changed

  No                  :  2
  VrfIndex            :
  Fec                 :  10.2.2.2/32
  Nexthop             :  10.1.2.2
  In-Label            :  NULL
  Out-Label           :  3
  Out-Interface       :  vlanif13
  LspIndex            :  6146
  Token               :  0x1
  LsrType             :  Ingress
  Outgoing token      :  0x0
  Label Operation     :  PUSH
  Down Time           :  2011/11/08 16:51:26+00:00
  Exist time          :  5sec
  Down Reason         :  route changed

**Table 2** Description of the display mpls last-info lsp-down protocol ldp verbose command output
Item	Description
No	Record No.
VrfIndex	Index of a VRF instance.
Fec	Forwarding equivalence class.
Nexthop	Next hop IP address.
In-Label	Value of the incoming label.
Out-Label	Value of the outgoing label.
Out-Interface	Outbound interface.
LspIndex	Index of an LSP.
Token	Token value, in the hexadecimal format.
LsrType	Type of an LSR on an LSP, which can be ingress, transit, or egress.
Outgoing token	Outgoing token value, in the hexadecimal format.
Label Operation	Label operation, which can be PUSH, POP, SWAP, or SWAPPUSH.
Down Time	Time when an LSP goes Down.
Exist time	Existing period of an LDP LSP, in seconds.
Down Reason	LSPs go Down due to the following causes: route changed: A route was changed. adjacency changed: An adjacency was changed. cannot recovery from GR: The LDP LSP failed to be reestablished during GR. recv release msg: A Release message was received. recv withdraw msg: A Withdraw message was received. US lost: The session with the upstream node went Down. DS lost: The session with the downstream node went Down. policy changed: The policy to establish LSPs was changed (Generally, configurations of the policy was changed). reach paf limit: PAF resources are insufficient. GR aging: The LSP aged after GR. others