Configuring An Ietf Ds-Te Tunnel Using Rdm - Cisco NCS 5500 Series Configuration Manual

Mpls ios xr release 6.2.x

Hide thumbs Also See for NCS 5500 Series:

Table of Contents

Implementing MPLS Traffic Engineering

two DS-TE modes: Pre-standard and IETF. Pre-standard DS-TE uses the Cisco proprietary mechanisms for

RSVP signaling and IGP advertisements. This DS-TE mode does not interoperate with third-party vendor

equipment. Pre-standard DS-TE is enabled only after configuring the sub-pool bandwidth values on

MPLS-enabled interfaces.

Pre-standard Diff-Serve TE mode supports a single bandwidth constraint model a Russian Doll Model (RDM)

with two bandwidth pools: global-pool and sub-pool.

Before You Begin

The following prerequisites are required to configure a Pre-standard DS-TE tunnel.

• You must have a router ID for the neighboring router.

• Stable router ID is required at either end of the link to ensure that the link is successful. If you do not

assign a router ID to the routers, the system defaults to the global router ID. Default router IDs are subject

to change, which can result in an unstable link.

Configuration Example

This example configures a pre-standard DS-TE tunnel.

RP/0/RP0/CPU0:router # configure

RP/0/RP0/CPU0:router(config)# rsvp interface HundredGigabitEthernet 0/0/0/3

RP/0/RP0/CPU0:router(config-rsvp-if)# bandwidth 100 150 sub-pool 50

RP/0/RP0/CPU0:router(config-rsvp-if)# exit

RP/0/RP0/CPU0:router(config)# interface tunnel-te 2

RP/0/RP0/CPU0:router(config-if)# signalled bandwidth sub-pool 10

RP/0/RP0/CPU0:router(config)# commit

Verification

Use the show mpls traffic-eng topology command to verify the pre-standard DS-TE tunnel configuration.

Configuring an IETF DS-TE Tunnel Using RDM

IETF DS-TE mode uses IETF-defined extensions for RSVP and IGP. This mode interoperate with third-party

vendor equipment.

IETF mode supports multiple bandwidth constraint models, including Russian Doll Model (RDM) and

Maximum Allocation Model (MAM), both with two bandwidth pools. In an IETF DS-TE network, identical

bandwidth constraint models must be configured on all nodes.

Before you Begin

The following prerequisites are required to create a IETF mode DS-TE tunnel using RDM:

MPLS Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x

Configuring MPLS-TE

Table of Contents