display isis ldp-sync interface

Function

The display isis ldp-sync interface command displays information about LDP and IS-IS synchronization on an interface.

Format

display isis [ process-id | vpn-instance vpn-instance-name ] ldp-sync interface

Parameters

Parameter	Description	Value
process-id	Specifies the IS-IS process ID.	The value is an integer ranging from 1 to 65535.
vpn-instance vpn-instance-name	Specifies the VPN instance name.	The value must be an existing VPN instance name.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

For all the interfaces that are enabled with LDP and IS-IS synchronization, run the display isis ldp-sync command to view information about LDP and IS-IS synchronization.

Example

# Display information about LDP and IS-IS synchronization on an interface.

<HUAWEI> display isis ldp-sync interface

                   Ldp Sync interface information for ISIS(1)
                   ------------------------------------------
Interface    HoldDownTimer    HoldMaxCostTimer   LDP State   Sync State
Vlanif100     10               10                 Down        Init

**Table 1** Description of the display isis ldp-sync interface command output
Item	Description
Interface	Interface connected to neighbors.
HoldDownTimer	Interval during which the interface waits for the LDP session establishment and does not create the IS-IS neighbor relationship. The default value is 10 seconds. You can set this value using the isis timer ldp-sync hold-down command.
HoldMaxCostTimer	Interval for IS-IS to notify the local device of the maximum metric in the link state PDU (LSP). The default value is 10 seconds. You can set this value using the isis timer ldp-sync hold-max-cost command. NOTE: If the value of this field is infinite, IS-IS permanently notifies the local device of the maximum metric in the LSP before an LDP session is established.
LDP State	LDP session status, which can be: Up: The LDP session is normal. Down: The LDP session is disconnected. GR: The LDP session is in GR state. If the interface is maintaining the session before GR, the LDP status is displayed as GR state during GR.
Sync State	Status of synchronization between LDP and IS-IS: Sync-Achieved: The creation of an LDP session and establishment of the IS-IS neighbor relationship are synchronized. HoldDown: indicates the state in which the interface waits to create an LDP session without creating the IS-IS neighbor relationship. HoldMaxCost: indicates the state in which IS-IS advertises the maximum metric in LSPs sent by the local device. Init: indicates the initial state.