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.
This command has no arguments or variables.
N/A.
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.
| 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. |
The following command displays summary configuration and status information for LDP:
# 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 * Indicates parameters that cannot be modified
This command was first available in ExtremeXOS 11.6.
This command is available only on the platforms that support MPLS as described in the Switch Engine v33.1.1 Licensing Guide document.