nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

N7k-1(config)# router ospf 1
N7k-1(config-router)# mpls ldp sync
Example 12-14 shows several useful LDP operational commands. The first command, show
mpls ldp bindings, shows the IP prefixes with their corresponding MPLS labels, which is
called the Label Information Base (LIB). The local binding shows the label assigned by the
router, which is, in turn, advertised to neighbors. The remote binding refers to a label-prefix
learned via LDP from a neighbor. The command show mpls ldp discovery enables the
network administrator to easily verify if LDP is running correctly. This command lists the
interfaces in which LDP is running and also verifies that the interfaces are transmitting and
receiving LDP Hello packets. Lastly, the command show mpls ldp neighbor displays useful
information about the status of LDP peers, including the neighborship state and operation
LDP discovery sources.
Example 12-14. Important LDP Operational Commands
Click here to view code image
N7k-1# sh mpls ldp bindings
lib entry: 1.1.1.1/32, rev 2
local binding: label: imp-null
remote binding: lsr: 2.2.2.2:0, label: 16
lib entry: 2.2.2.2/32, rev 6
local binding: label: 16
remote binding: lsr: 2.2.2.2:0, label: imp-null
N7k-1# sh mpls ldp discovery
Local LDP Identifier:
1.1.1.1:0
Discovery Sources:
Interfaces:
Ethernet10/18 (ldp): xmit/recv
LDP Id: 2.2.2.2:0
N7k-1# sh mpls ldp neighbor
Peer LDP Ident: 2.2.2.2:0; Local LDP Ident 1.1.1.1:0
TCP connection: 2.2.2.2.56735 - 1.1.1.1.646
State: Oper; Msgs sent/rcvd: 8/10; Downstream
Up time: 00:02:50
LDP discovery sources:
Ethernet10/18, Src IP addr: 192.168.0.2
Addresses bound to peer LDP Ident: