|
A detailed description of MPLS is beyond the scope
of this application note, and there are many documents
on this topic.
It is important, however, to understand that one of
the key features of MPLS technology is that it has two
distinct functional components - a control component
and a forwarding component. The control component uses
standard routing protocols (i.e. RSVP-TE, CR-LDP) to
exchange routing data with other routers to build and
maintain a forwarding table. The forwarding component,
on the other hand, searches the forwarding table for
a match of the arriving packets and directs them from
the input interface to the output interface across the
router ¦s switch fabric.
This application note focuses on the forwarding capabilities
of MPLS technologies.
|
Network Services 
