MPLS Guide Label Distribution Protocol
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Table 46 LDP Parameters Field Descriptions
Label Description
Graceful Restart Parameters
Nbor Liveliness Time The neighbor liveness time
Max Recovery Time The local maximum recovery time
IPv4 Interface Parameters
IPv6 Interface Parameters
Keepalive Timeout The time interval, in seconds, that LDP waits before tearing down
a session. If no LDP messages are exchanged during this time
interval, the LDP session is torn down. Generally the value is
configured to be three times the keepalive time (the time interval
between successive LDP keepalive messages).
Keepalive Factor The value by which the keepalive timeout should be divided to
give the keepalive time; that is, the time interval, in seconds,
between LDP keepalive messages. LDP keepalive messages are
sent to keep the LDP session from timing out when no other LDP
traffic is being sent between the neighbors.
Hold Time The time interval, in seconds, that LDP waits before declaring a
neighbor to be down. Hold time (also known as Hello time) is local
to the system and is sent in the hello messages to a neighbor.
Hello Factor The value by which the hello timeout should be divided to give the
hello time; that is, the time interval, in seconds, between LDP
Hello messages. LDP uses hello messages to discover neighbors
and to detect loss of connectivity with its neighbors.
Propagate Policy Specifies whether the LSR should generate FECs and which
FECs it should generate
system — indicates that the LDP will distribute label bindings only
for the router’s system IP address
interface — indicates that the LDP will distribute label bindings for
all LDP interfaces
all — indicates that the LDP will distribute label bindings for all
prefixes in the routing table
none — indicates that the LDP will not distribute any label
bindings
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