ESR series service routers.ESR-Series. User manual
Solution:
ESR(config)# mpls
ESR(config-mpls)# ldp
ESR(config-ldp)# discovery hello holdtime 40
ESR(config-ldp)# discovery hello interval 10
ESR(config-ldp)# neighbor 1.1.1.1
ESR(config-ldp-neig)# keepalive 150
Check:
To view hello parameters:
ESR# sh mpls ldp discovery detailed
Local LDP ID: 4.4.4.4
Discovery sources:
    Interfaces:
        gigabitethernet 1/0/4:
            Hello interval:       10 seconds
            Transport IP address: 4.4.4.4
            LDP ID:               1.1.1.1
                Source IP address:    10.10.10.1
                Transport IP address: 1.1.1.1
                Hold time:            15 seconds
                Proposed hold time:   40/15 (local/peer) seconds
To view parameter of the established TCP session:
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 - 4.4.4.4:45414
    Messages sent/received: 15/15
    Uptime:                 00:06:31
    Peer holdtime:          150
    Keepalive interval:     50
    LDP discovery sources: