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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R013C00

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, IP Routing Table Management, and PBR.
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Configuring an Interval for Retransmitting LSAs Between Adjacent Switches

Configuring an Interval for Retransmitting LSAs Between Adjacent Switches

Context

After a switch sends an LSA to its neighboring switch, the switch waits for a response within an interval. If no response is received within the interval, the switch retransmits the LSA to the neighboring switch.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The OSPF interface view is displayed.

  3. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

  4. Run ospf timer retransmit interval

    An interval at which LSAs are retransmitted between adjacent switches is set.

    By default, the interval is 5s.

    NOTE:

    Generally, the interval at which LSAs are retransmitted between adjacent switches must be greater than the round trip time of a packet transmitted between the two switches. Otherwise, some LSAs are retransmitted unnecessarily.

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Updated: 2019-04-08

Document ID: EDOC1100065744

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