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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R011C10

This document describes IP Unicast Routing configurations supported by the switch, including the principle and configuration procedures of IP Routing Overview, Static Route, RIP, RIPng, OSPF, OSPFv3, IS-IS(IPv4), IS-IS(IPv6), BGP, Routing Policy ,and PBR, and provides configuration examples.

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Configuring a Device Level

Configuring a Device Level


Configure a device level according to network planning requirements:
  • A Level-1 device can establish neighbor relationships with only Level-1 and Level-1-2 routers in the same area and maintains only Level-1 LSDBs.
  • A Level-2 device can establish neighbor relationship with Level-2 routers in the same area or different areas and with Level-1-2 routers in different areas and maintain only Level-2 LSDB.
  • A Level-1-2 device can establish neighbor relationships with Level-1 and Level-2 routers and maintain Level-1 and Level-2 LSDBs.

If the levels of IS-IS devices are changed during network operation, the IS-IS process will be restarted, and IS-IS neighbor relationships will be disconnected. Setting the levels of devices when configuring IS-IS is recommended.


  1. Run system-view

    The system view is displayed.

  2. Run isis [ process-id ]

    The IS-IS process view is displayed.

  3. Run is-level { level-1 | level-1-2 | level-2 }

    A level is configured for the switch.

    By default, the level of the switch is Level-1-2.

Updated: 2020-02-04

Document ID: EDOC1000178324

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