Huawei AR1200 Series - Overview of Static Lsps; Static Lsps Features Supported by the AR1200; Configuring Static Lsps; Establishing the Configuration Task

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1.1 Overview of Static LSPs

The static LSP cannot be set up using a label distribution protocol but can be set up by an

administrator. The static LSP applies to a stable and small-scaled network with the simple

topology.

When configuring a static LSP, the administrator must manually allocate labels for each LSR

by following the rule that the value of the outgoing label of the previous node is equal to the

value of the incoming label of the next node. Each LSR on the static LSP cannot detect the

changes of other LSRs on the LSP. Therefore, the static LSP is a local concept.

A static LSP is set up without using label distribution protocols, and does not need to exchange

control packets. Therefore, the static LSP consumes few resources and applies to small-scale

networks with simple and stable topology. A static LSP cannot vary with the network topology

dynamically. The administrator must adjust the static LSP according to the network topology.

1.2 Static LSPs Features Supported by the AR1200

Static LSPs

Static LSPs must be configured manually by the administrator. Each LSR on the static LSP

cannot sense the status of the entire LSP, because the static LSP is a local concept. A static LSP

cannot vary with the change in a route dynamically. The administrator must adjust the static

LSP.

1.3 Configuring Static LSPs

A static LSP can be set up only after each LSR is manually configured.

1.3.1 Establishing the Configuration Task

Before configuring a static LSP, familiarize yourself with the applicable environment, complete

the pre-configuration tasks, and obtain the required data.

Applicable Environment

A static LSP works properly only after all the LSRs along the LSP are configured.

The setup of static LSPs does not require the label distribution protocol or exchange any control

packets. Therefore, the static LSPs consume a few resources and apply to small-scale networks

with a simple and stable topology. The static LSPs cannot vary with the network topology

dynamically. The administrator, therefore, needs to adjust the static LSPs according to the

network topology.

Static LSPs are used over MPLS L2VPNs.

For information about the MPLS L2VPN configuration, refer to the Huawei AR1200 Series

Enterprise Routers Configuration Guide - VPN.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - MPLS 1 Static LSPs Configuration

Issue 01 (2011-12-30) Huawei Proprietary and Confidential

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