ELTEX ESR-21 - Page 318

ESR series service routers.ESR-Series. User manual
318
ESR routers have the ability to flexibly configure Hello holdtime, Hello interval and Keepalive holdtime settings.
Example of configuring Hello holdtime for an LDP session:
ESR# show run mpls
mpls
 ldp
 router-id 4.4.4.4
  discovery hello holdtime 40
 address-family ipv4
 interface gigabitethernet 1/0/4
      discovery hello holdtime 60
 exit
 exit
 enable
exit
If the Hello Holdtime and Hello Interval parameters are not specified, the default values are used. If parameters
are specified, the priority of values for address-family will be higher than for globally configured values.
ESR# show mpls ldp discovery detailed
Local LDP ID: 4.4.4.4
Discovery sources:
 Interfaces:
 gigabitethernet 1/0/4:
   Hello interval: 5 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: 60 /15 (local/peer) seconds
The parameters configured in address-family can be configured for each individual interface participating in
the LDP process.
ESR# show running-config mpls
mpls
 ldp
 router-id 4.4.4.4
 discovery hello holdtime 50
 discovery hello interval 10
 address-family ipv4
      interface gigabitethernet 1/0/1
        discovery hello holdtime 60
        discovery hello interval 20
 exit
      interface gigabitethernet 1/0/4
        discovery hello holdtime 30
        discovery hello interval 10
 exit
 exit
 enable
exit
For a TCP session, Keepalive holdtime is also a matching parameter similar to Hold timer. Keepalive interval is
calculated automatically and equals Keepalive holdtime/3. Keepalive holdtime can be set globally as well as
for each neighbor. The timer set for a particular neighbor is a higher priority.