show mpls ldp

show mpls ldp

Description

Displays summary configuration and status information for LDP. Global status of LDP, LDP session timer configuration, loop detection, and label advertisement status are included in the display output.

Syntax Description

This command has no arguments or variables.

Default

N/A.

Usage Guidelines

This command displays the global status of LDP, LDP session timer configuration, loop detection, label advertisement, and LDP-enabled VLANs.

The following table describes the display fields that appear when this command is entered.

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show mpls ldp Field Definitions

Field Definition
LDP Admin Status LDP Admin Status shows whether LDP has been administratively Enabled or Disabled.
LDP Oper Status LDP Oper Status shows whether LDP is operating (Enabled) or not (Disabled).
Protocol Version Protocol Version specifies the LDP protocol version number.
Label Retention Mode Label Retention Mode is either Conservative or Liberal, as described in RFC 3036, LDP Specification. The ExtremeXOS software only supports Liberal mode. In Liberal mode, a label switch router maintains all received label-to-FEC mapping advertisements.
Label Distribution Method Label Distribution Method is either Downstream Unsolicited or Downstream On Demand, as described in RFC 3036, LDP Specification. The ExtremeXOS software only supports Downstream Unsolicited mode. In Downstream Unsolicited mode, a label switch router distributes label bindings to peer label switch routers without waiting for the bindings to be requested.
Label Distribution Control Mode Label Distribution Control Mode is either Independent or Ordered, as described in RFC 3036, LDP Specification. The ExtremeXOS software only supports Ordered mode. In Ordered control mode, a label switch router only creates a binding of a label-to-FEC when it is the egress router or it has received a label binding for that FEC from the next hop router for that FEC.
LDP BGP LSPs LDP BGP LSPs shows whether LDP uses BGP routes. When the displayed value is Enabled, LDP accepts BGP routes and stores them in the LDP internal routing table. When the displayed value is Disabled, LDP does not accept BGP routes, which reduces memory requirements when LSPs based on BGP routes are not desired. Note that when Disabled is displayed, no LDP LSPs are established to prefixes for which BGP is the preferred routing protocol.
LDP Loop Detection LDP Loop Detection displays the LDP loop detection configuration.
LDP Targeted Timers LDP Targeted Timers displays the LDP timer configuration used for LDP targeted adjacencies and sessions.
LDP Link Timers LDP Link Timers displays the LDP timer configuration used for LDP link adjacencies and sessions.

Example

The following command displays summary configuration and status information for LDP:

* BD-10K.25 # show mpls ldp
LDP Admin Status                    : Enabled
LDP Oper Status                     : Enabled
Protocol Version                    : v1*
Label Retention Mode                : Liberal*
Label Distribution Method           : Downstream Unsolicited*
Label Distribution Control Mode     : Ordered*
LDP BGP LSPs                        : Enabled
LDP Loop Detection
Status            : Disabled
Hop-Count Limit   : 255
Path-Vector Limit : 255
LDP Targeted Timers
Hello Hold      : 45 seconds
Keep Alive Hold : 60 seconds
LDP Link Timers
Hello Hold      : 15 seconds
Keep Alive Hold : 40 seconds
Label Advertisement
Direct : Matching LSR-ID Only
Rip    : None
Static : None
LDP VLANs  : vlan1
: vlan2
: vlan3
* Indicates parameters that cannot be modified
# show mpls ldp
LDP Admin Status                    : Enabled
LDP Oper Status                     : Disabled
Protocol Version                    : v1*
Label Retention Mode                : Liberal*
Label Distribution Method           : Downstream Unsolicited*
Label Distribution Control Mode     : Ordered*
LDP BGP LSPs                        : Disabled
LDP Loop Detection
Status            : Disabled
Hop-Count Limit   : 255
Path-Vector Limit : 255
LDP Targeted Timers
Hello Hold      : 45 seconds
Keep Alive Hold : 60 seconds
LDP Link Timers
Hello Hold      : 15 seconds
Keep Alive Hold : 40 seconds
Label Advertisement
Direct : Matching LSR-ID Only
Rip    : None
Static : None
LDP VLANs  : karen
: lb
CES Pseudo Wire Parameter Mismatch Recovery : Auto
* Indicates parameters that cannot be modified

History

This command was first available in ExtremeXOS 11.6.

Platform Availability

This command is available only on the platforms that support MPLS as described in the Feature License Requirements document.