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... RSVP for establishing label switched
paths (LSPs) in MPLS networks.
Several of the new features described in this document were motivated
...
... LSP tunnels allow the implementation of a variety of policies related
to network performance optimization. For example, LSP tunnels can be
...
... performance optimization. For example, LSP tunnels can be
automatically or manually routed away from network failures,
congestion, and bottlenecks. Furthermore, multiple parallel LSP
tunnels ...
... traffic engineering (that is, performance
optimization of operational networks) is expected to be an important
application of this specification, the extended RSVP protocol can be
...
... QoS and policy requirements, taking into
consideration the prevailing network state. In general, path
computation can be control-driven or data-driven. The mechanisms,
...
... domain can control the path through which traffic traverses from
itself, through the MPLS network, to an egress node. Explicit
routing ...
... node. Explicit
routing can be used to optimize the utilization of network resources
and enhance traffic oriented performance characteristics ...
... LABEL_REQUEST object indicates that a label binding for this path is
requested and also provides an indication of the network layer
protocol that is to be carried over this path. The reason for this
is that the network layer protocol sent down an LSP ...
... requested and also provides an indication of the network layer
protocol that is to be carried over this path. The reason for this
is that the network layer protocol sent down an LSP cannot be assumed
to be IP ...
... QoS requirements, or that makes efficient use
of network resources, or that satisfies some policy criteria, the
node can decide to use the route ...
... and the paths taken by the senders can converge and diverge at any
point in the network topology. When Path messages have differing
EXPLICIT_ROUTE objects ...
... In general, it is highly desirable not to disrupt traffic, or
adversely impact network operations while TE tunnel rerouting is in
...
... arise because the old and new LSP tunnels might compete with each
other for resources on network segments which they have in common.
Depending on availability of resources, this competition can cause
...
... label binding for this path is requested and provides an indication
of the network layer protocol that is to be carried over this path.
This permits non-IP network layer protocols ...
... of the network layer protocol that is to be carried over this path.
This permits non-IP network layer protocols to be sent down an LSP.
...
...
An explicit route is a particular path in the network topology.
Typically, the explicit route is determined by a node ...
... node and its preceding node MUST include
only network nodes from the strict node and its preceding abstract
...
... node and its preceding node MAY include
other network nodes that are not part of the strict node or its
...
... destinations. The second class of forwarding loop is
the permanent loop, which normally results from network mis-
configuration.
...
... Wroclawski, J., "Specification of the Controlled-Load Network Element Service", RFC 2211prop, September 1997. ...
...
Daniel O. Awduche
Movaz Networks, Inc.
7926 Jones Branch Drive, Suite 615
McLean, VA 22102
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...
Lou Berger
Movaz Networks, Inc.
7926 Jones Branch Drive, Suite 615
McLean, VA 22102
...