Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

MPLS LDP 6MPLS LDPBrocade devices support the Label Distribution Protocol (LDP) for setting up non-traffic-engineeredtunnel LSPs in an MPLS network.When used to create tunnel LSPs, LDP allows a set of destination IP prefixes (known as aForwarding Equivalence Class or FEC) to be associated with an LSP. Each label switch router (LSR)establishes a peer relationship with its neighboring LDP-enabled routers and exchanges labelmapping information, which is stored in an LDP database.The result of an LDP configuration is a full mesh of LSPs in an MPLS network, with eachLDP-enabled router a potential ingress, transit, or egress LSR, depending on the destination.MPLS LDP show commandsYou can display the following information about LDP:• The LDP version number, as well as the LSR’s LDP identifier and loopback number• Information about active LDP-created LSPs on the device• Information about LDP-created tunnel LSPs for which this device is the ingress LER• The contents of the LDP database• Information about the LDP session between this LSR and its LDP peers• Information about the connection between this LSR and its LDP peers• Information about LDP-enabled interfaces on the LSRshow mpls ldpSyntax: show mpls ldpTo display the LDP version number, the LSR’s LDP identifier and loopback number, and the LDPhello interval and hold time, enter the show mpls ldp command.Brocade# show mpls ldpLabel Distribution Protocol version 1LSR ID: 2.2.2.2, using Loopback 1 (deleting it will stop LDP)Hello interval: Link 5 sec, Targeted 15 secHold time value sent in Hellos: Link 15 sec, Targeted 45 secKeepalive interval: 6 sec, Hold time multiple: 6 intervalsshow mpls ldp pathSyntax: show mpls ldp pathUse the show mpls ldp path command to display information about active LDP-created LSPs forwhich the device is an ingress, transit, or egress LSR.Brocade# show mpls ldp pathDestination route Upstr-session(label) Downstr-session(label, intf)2.2.2.2/32 1.1.1.1:0(3)1.1.1.1/32 1.1.1.1:0(3, e1/1)1.1.1.1:0(3, e1/2)3.3.3.3/32 3.3.3.3:0(5050) 4.4.4.4:0(2057,gre-tnl200)Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide 21553-1002426-02