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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 02

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Configuring the LSR ID for an NE

Configuring the LSR ID for an NE

Label switch router (LSR) IDs are used to identify nodes on the MPLS network. In the MPLS network, LSR IDs are configured for identifying source and sink nodes of MPLS tunnels.


You are an NM user with Administrators rights or higher.


When planning the LSR ID for an NE, adhere to the following principles:

  • The IP address of an NNI port can be an IP address of standard class A, B, or C (namely, an IP address within the range from to The IP address of an NNI port cannot be a broadcast address (*.*.*.255), multicast address ( to, reserved address ( to, network address (*.*.*.0), zero address (0.*.*.*), loopback address (127.*.*.*) or subnet address (192.168.*.* or 192.169.*.*). The network segment is recommended.
  • Each NE must have an independent and globally unique LSR ID on a network.
  • The LSR ID of an NE and the IP address of the NE must be different from each other and must be in different network segments.
  • The SLR ID of an NE must be in a different network segment from the IP address of any service port on the NE.


  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.

    For details about LSR ID, see Basic Configuration.

    • 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 suggest to change the LSR ID.

Updated: 2019-01-21

Document ID: EDOC1100020976

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