{ "ldp": {} }

Attribute	Description	Default
instance-id	LDP instance identifier
keepalive-time	LDP session keepalive time in seconds	15
hold-time	LDP hello hold time in seconds	15
hostname	LDP hostname	bngblaster
lsr-id	LDP LSR identifier	10.10.10.10
teardown-time	LDP teardown time in seconds	5
ipv6-transport-address	LDP transport IPv6 address
ipv4-transport-address	LDP transport IPv6 address	lsr-id
no-ipv4-transport	Disable/discard IPv4 LDP hello messages
prefer-ipv4-transport	Prefer IPv4 transport even if IPv6 is enabled	false
raw-update-file	LDP RAW update file

The keepalive-time defines the local LDP session keepalive timeout. Each LDP peer must calculate the effective keepalive timeout by using the smaller of its locally defined and received timeout in the PDU. The value chosen indicates the maximum number of seconds that may elapse between the receipt of successive PDUs from the LDP peer on the session TCP connection. The keepalive timeout is reset each time a PDU arrives. The BNG Blaster will send keepalive messages at an interval calculated by using the effective keepalive time divided by 3. Assuming an effective keepalive time of 15 seconds results in a keepalive interval of 5 seconds.

Setting a valid ipv6-transport-address enables LDP IPv6 hello and transport. According to RFC7552, IPv6 is preferred over IPv4 which can be changed with prefer-ipv4-transport.