Protocols And Standards; Mpls Te Configuration Task List - HP MSR2000 Configuration Manual

During the delivery of the Resv message, a CRLSP in the other direction is established. The CRLSPs
of a bidirectional MPLS TE tunnel established in co-routed mode use the same path.
Associated mode—In this mode, you establish a bidirectional MPLS TE tunnel by binding two
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unidirectional CRLSPs in opposite directions. The two CRLSPs can be established in different modes
and use different paths. For example, one CRLSP is established statically and the other CRLSP is
established dynamically by RSVP-TE.
For more information about establishing MPLS TE tunnel through RSVP-TE, the Path message, and the Resv
message, see "Configuring RSVP."

Protocols and standards

• RFC 2702, Requirements for Traffic Engineering Over MPLS
RFC 3564, Requirements for Support of Differentiated Service-aware MPLS Traffic Engineering
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RFC 3812, Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information
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Base (MIB)
RFC 4124, Protocol Extensions for Support of Diffserv-aware MPLS Traffic Engineering
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RFC 4125, Maximum Allocation Bandwidth Constraints Model for Diffserv-aware MPLS Traffic
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Engineering
• RFC 4127, Russian Dolls Bandwidth Constraints Model for Diffserv-aware MPLS Traffic Engineering
ITU-T Recommendation Y.1720, Protection switching for MPLS networks
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MPLS TE configuration task list

To configure an MPLS TE tunnel to use a static CRLSP, complete the following tasks:
1. Enable MPLS TE on each node and interface that the MPLS TE tunnel traverses.
2. Create a tunnel interface on the ingress node of the MPLS TE tunnel, and specify the tunnel
destination address—the address of the egress node.
3. Create a static CRLSP on each node that the MPLS TE tunnel traverses.
For information about creating a static CRLSP, see "Configuring a static CRLSP."
4. On the ingress node of the MPLS TE tunnel, configure the tunnel interface to reference the created
static CRLSP.
5. On the ingress node of the MPLS TE tunnel, configure static routing, PBR, or automatic route
advertisement to direct traffic to the MPLS TE tunnel.
To configure an MPLS TE tunnel to use a CRLSP dynamically established by RSVP-TE, complete the
following tasks:
6. Enable MPLS TE and RSVP on each node and interface that the MPLS TE tunnel traverses.
For information about enabling RSVP, see "Configuring RSVP."
7. Create a tunnel interface on the ingress node of the MPLS TE tunnel, specify the tunnel destination
address—the address of the egress node, and configure the MPLS TE tunnel constraints (such as
the tunnel bandwidth constraints and affinity) on the tunnel interface.
8. Configure the link TE attributes (such as the maximum link bandwidth and link attribute) on each
interface that the MPLS TE tunnel traverses.
9. Configure an IGP on each node that the MPLS TE tunnel traverses, and configure the IGP to support
MPLS TE, so that the nodes advertise the link TE attributes through the IGP.
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