1358
C
77: MPLS TE C
HAPTER
Protocols and Standards
MPLS TE
Configuration Task
List
ONFIGURATION
Essentially, what DS-TE does is to map traffic trunks with LSPs, making each traffic
trunk traverse the constraints-compliant path.
DS-TE involves two concepts:
Class type (CT): The set of traffic trunks crossing a link that is governed by a
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specific set of Bandwidth constraints. CT is used for purposes of link bandwidth
allocation, constraint based routing, and admission control. A given traffic
trunk belongs to the same CT on all links.
Bandwidth constraints (BCs): Different BC models can be created to control
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CTs. A BC model is broken down into maximum number of BCs (MaxBC), and
mappings between BCs and CTs.
n
Currently, DiffServ-Aware TE is not supported.
RFC 2702 Requirements for Traffic Engineering Over MPLS
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RFC 3212 Constraint-Based LSP Setup using LDP
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RFC 2205 Resource ReSerVation Protocol
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RFC 3209 RSVP-TE: Extensions to RSVP for LSP Tunnels
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RFC 2961 RSVP Refresh Overhead Reduction Extensions
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RFC 3564 Requirements for Support of Differentiated Service-aware MPLS
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Traffic Engineering
Complete these tasks to configure MPLS TE:
Configuration task
"Configuring MPLS TE Basic Capabilities" on page 1359
Configuring an
MPLS TE tunnel
"Configuring RSVP-TE Advanced Features" on page 1366
"Tuning CR-LSP Setup" on page 1370
"Tuning MPLS TE Tunnel Setup" on page 1372
"Configuring Traffic Forwarding" on page
1374
"Configuring Traffic Forwarding Tuning Parameters" on page 1377
"Creating MPLS TE Tunnel over Static CR-LSP" on
page 1360
"Configuring MPLS TE Tunnel with Dynamic
Signaling Protocol" on page 1361
"Forwarding traffic along
MPLS TE tunnels using
static routes" on page
1374
"Forwarding traffic along
MPLS TE tunnels using
policy routing" on page
1375
"Forwarding traffic along
MPLS TE tunnels through
automatic route
advertisement" on page
1376
Remarks
Required
Required
Use either
approach
Optional
Optional
Optional
Required
Use any approach
Optional
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