Execution Flow
Page 524 7450 ESS MPLS Guide
Execution Flow
LDP activity in the operating system is limited to service-related signaling. Therefore, the
configurable parameters are restricted to system-wide parameters, such as hello and keepalive
timeouts.
Initialization
LDP makes sure that the various prerequisites, such as ensuring the system IP interface is
operational, the label manager is operational, and there is memory available, are met. It then
allocates itself a pool of memory and initializes its databases.
Session Lifetime
In order for a targeted LDP (T-LDP) session to be established, an adjacency must be created. The
LDP extended discovery mechanism requires hello messages to be exchanged between two peers
for session establishment. After the adjacency establishment, session setup is attempted.
Adjacency Establishment
To Next Page
Loading...
