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OSN 9800 V100 Configuration Guide 03

This document introduces service configuration process for OSN 9800.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring an MPLS Tunnel

Configuring an MPLS Tunnel

On a PSN network, the multi-protocol label switching (MPLS) tunnel carries PWs where various services are encapsulated. In this manner, data packets can be transparently transmitted between NEs. One MPLS tunnel can carry several PWs. Before configuring a service, you need to configure the MPLS tunnel for carrying the service.

Context

NOTE:

You are advised to configure bidirectional MPLS tunnels to facilitate tunnel management and maintenance, improving OAM resource utilization efficiency.

For unidirectional MPLS tunnels, the forward MPLS tunnel and reverse MPLS tunnel are created separately. For a forward MPLS tunnel, either its mapping reverse MPLS tunnel or another MPLS reverse tunnel can be configured to transmit BDI packets during MPLS-TP OAM configuration, or be configured as the protection reverse tunnel during configuration of MPLS tunnel APS.

For bidirectional MPLS tunnels, a forward MPLS tunnel is bound with a specific reverse MPLS tunnel. For a forward MPLS tunnel, only its mapping reverse MPLS tunnel can be configured to transmit BDI packets during MPLS-TP OAM configuration, or be configured as the protection reverse tunnel during configuration of MPLS tunnel APS.

Before configuring MPLS tunnels, refer to the number of MPLS tunnels recorded in "Functions and Features" under "Packet Boards" in the Hardware Description for MPLS tunnel planning.

Configuring LSR ID

In the Basic Configuration interface, you can set LSR (Label Switch Router) ID.

Prerequisites

You must be an NM user with "NE operator" authority or higher.

Precautions

NOTE:

When planning LSR IDs, adhere to the following principles:

  • An LSR ID can be an IP address of standard class A, B, or C, that is, an IP address within the range from 1.0.0.1 to 223.255.255.254. An LSR ID cannot be a broadcast address (*.*.*.255), multicast address (224.0.0.0 to 239.255.255.255), reserved address (240.0.0.0 to 255.255.255.255), network address (*.*.*.0), zero address (0.*.*.*), loopback address (127.*.*.*), or subnet address (192.168.*.*, 192.169.*.*).
  • Each NE must have an independent and globally unique LSR ID on a network.
  • The LSR ID and IP address of an NE must be different from each other and must belong to different network segments.
  • The LSR ID of an NE and the IP addresses of service ports on the NE must belong to different network segments.

Procedure

  1. In the NE Explorer, select the NE and choose Configuration > Packet Configuration > MPLS Management > Basic Configuration from the Function Tree.
  2. Set LSR ID.

    NOTE:
    • When the LSR ID is specified for the first time, no warm-reset occurs on the NE. If the specified LSR ID is then changed, a warm-reset occurs on the NE but does not affect services.
    • If any tunnel exists, do not change the LSR ID.
    NOTE:

    For OTN equipment transmission, retain the default value for MPLS Label start. For interconnection with other equipment, ensure that the values configured at two ends are consistent.

Configuring a Bidirectional Static MPLS Tunnel on a Per-NE Basis

You can configure an end-to-end bidirectional MPLS tunnel on a per-NE basis. You need to configure the MPLS tunnel on each node that the MPLS tunnel traverses.

Prerequisites

  • You must be an NM user with "NE operator" authority or higher.

  • You must complete the correct configuration of the port attributes.
  • You must complete the correct setting of the LSR ID for each NE.

Procedure

  1. In the NE Explorer, select the source NE of the MPLS tunnel and choose Configuration > Packet Configuration > MPLS Management > Unicast Tunnel Management from Function Tree.
  2. Click the Static Tunnel tab and click Create. Then, the Static Tunnel dialog box is displayed.
  3. Set the parameters of the bidirectional MPLS tunnels. For details about the parameters, see Parameters for Configuring a Static Tunnel (on a Per-NE Basis).

    NOTE:
    • When IsrRole is set to Transit, the incomingIfName, forwardInlable, backwardOutlabel, backwardNextHop, outgoingIfName, forwardOutlabel, backwardInlabel, and forwardNextHop parameters need to be set for the tunnel.
    • When IsrRole is set to Egress, the incomingIfName, forwardInlable, backwardOutlabel, and backwardNextHop parameters need to be set for the tunnel.

  4. Click OK to complete the configuration of the static MPLS tunnel.
  5. Refer to Steps 1 - 4 to configure the static MPLS tunnels on the intermediate NEs and sink NE.
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Updated: 2019-09-05

Document ID: EDOC1100033663

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