An MPLS TE LSP is setup by using RSVP with TE extensions.
CSPF builds a topology that is aware of current usage level (RSVP resources) used on each link for each direction. (reservations are unidrectional)
The first node sends an RSVP message to the next router to the destination of the tunnel.
Note that the destination can only be the MPLS TE Router-ID of the destination PE node.
In CSPF each node is associated with a single IPv4 address.
So the first router, the headend, builds an RSVP message (PAth) with the required specs BW and sends out of a link that has enough resources to allocate the request. The next router will do the same until to reach the destination node (if reachable). If everything is ok another set of messages are sent hop to hop back to the headend to perform the real resources reservations RSVP (RESV). (RSVP is receveir focused)
With XR 4.2.0 the ASR9000 is releasing a new line of hardware models. This amongst others is the RSP440, the next generation RSP with faster switch fabric along with Typhoon based Linecards, the next generation network processor.
The Cisco EPN system incorporates a network architecture designed to consolidate multiples services on a single Multiprotocol Label Switching (MPLS) transport network. This network is designed primarily based on...
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