ESR series service routers.ESR-Series. User manual
ESR# show running-config mpls
mpls
 ldp
 router-id 4.4.4.4
  keepalive 30// set in the global LDP configuration
 neighbor 1.1.1.1
  keepalive 55// set to neighbor with the 1.1.1.1 address
 exit
exit
ESR# sh mpls ldp neighbor 1.1.1.1
Peer LDP ID: 1.1.1.1; Local LDP ID 4.4.4.4
 State: Operational
 TCP connection: 1.1.1.1:646 - 4.4.4.4:56668
 Messages sent/received: 401/401
 Uptime: 02:00:24
 Peer holdtime: 55
 Keepalive interval: 18
 LDP discovery sources:
12.2.1  Algorithm for setting Hello holdtime and Hello interval in the global LDP configuration
Step Description Command Keys
1 Configure the LDP (see section LDP configuration).
2 In the LDP configuration mode, set 
Hello holdtime.
esr(config-ldp)# discovery hello 
holdtime <TIME>
<TIME> — Time in seconds in 
the range of [3..65535].
Default value: 15.
3 In the LDP configuration mode, set 
Hello interval.
esr(config-ldp)# discovery hello 
interval <TIME>
<TIME> — Time in seconds in 
the range of [3..65535].
Default value: 5.
12.2.2  Algorithm for setting Hello holdtime and Hello interval for address family
Step Description Command Keys
1 Configure the LDP (see section LDP configuration).
2 In the LDP address family configuration 
mode, set Hello holdtime on the 
specified interface.
esr(config-ldp-af-ipv4-if)# 
discovery hello holdtime <TIME>
<TIME>— time in the range of 
[3..65535] seconds.
Default value: 15.