Specifications

show mpls ldp discovery
MP-664
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
LDP Id: 10.10.10.10:0
Src IP addr: 172.140.0.1; Transport IP addr: 10.10.10.10
Hold time: 15 sec; Proposed local/peer: 15/15 sec
Table 114 describes the significant fields shown in the display.
Ta b l e 114 show mpls ldp discovery detail Field Descriptions
Field Description
Local LDP Identifier The LDP identifier for the local router. An LDP identifier is a 6-byte
co
nstruct displayed in the form “IP address:number.”
By convention, the first four bytes of the LDP identifier constitute the
ro
uter ID; integers, starting with 0, constitute the final two bytes of the IP
a
ddress:number construct.
Interfaces Lists the interfaces that are engaging in LDP discovery activity:
• The xmit field—Indicates that the interface is sending LDP discovery
hello packets.
• The recv field—Indicates that the interface is receiving LDP discovery
hello packets.
• The (LDP) or (TDP) field—Indicates the Label Distribution Protocol or
Tag Distribution Protocol configured for the interface.
The LDP (or TDP) identifiers indicate the LDP (or TDP) neighbors
d
iscovered on the interface.
Interface config, IGP
co
nfig;
Describes how LDP is enabled:
• Interface config—Enabled by the mpls ip command.
• IGP config—Enabled by the mpls ldp autoconfig command.
• Interface config, IGP config;—Enabled by the mpls ip command and the
mpls ldp autoconfig command.
Hello interval Period of time (in milliseconds) between the sending of consecutive hello
m
essages.
Transport IP addr Specifies that the interface address should be advertised as the transport
ad
dress in the LDP discovery hello messages.
LDP Id LDP ID of the peer router.
Src IP addr Source IP address of the local router.
Transport IP addr Specifies that the named IP address should be advertised as the transport
ad
dress in the LDP discovery hello messages sent on an interface.
Hold time Period of time (in seconds) a discovered LDP neighbor is remembered
with
out receipt of an LDP hello message from the neighbor.
Proposed local/peer Hold times (in seconds) proposed for LDP hello timer by the local router and
th
e peer router. LDP uses the lower of these two values as the hold time.