Setting hold time and interval globallySet LDP hold time and Hello interval globally. For an LDP session between routers, you must configure LDP on an interface to allow the device to advertise its loopback interface to the peers. To set the hold time and interval included in LDP Hello messages globally perform the following steps. Set the hold time globally. vyatta@R1# set protocols mpls-ldp discovery interfaces hello-holdtime 30 Set the interval globally. vyatta@R1# set protocols mpls-ldp discovery interfaces hello-interval 10