Configuring The Default Lacp Short Period Time Interval - Cisco NCS 5500 Series Configuration Manual
Interface and hardware component configuration
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Configuring the Default LACP Short Period Time Interval
When the short period time interval is not configured, LACP packets are transmitted over a member link every
30 seconds by default.
When the short period time interval is configured, LACP packets are transmitted over a member link once
every 1000 milliseconds (1 second) by default. Optionally, both the transmit and receive intervals can be
configured to less than 1000 milliseconds, independently or together, in increments of 100 milliseconds (100,
200, 300, and so on).
When you configure a custom LACP short period transmit interval at one end of a link, you must configure
the same time period for the receive interval at the other end of the link.
Note
You must always configure the transmit interval at both ends of the connection before you configure the
receive interval at either end of the connection. Failure to configure the transmit interval at both ends first
results in route flapping (a route going up and down continuously). When you remove a custom LACP
short period, you must do it in reverse order. You must remove the receive intervals first and then the
transmit intervals.
Configuring the Default LACP Short Period Time Interval
This section describes how to configure the default short period time interval for sending and receiving LACP
packets on a Gigabit Ethernet interface. This procedure also enables the LACP short period.
SUMMARY STEPS
1. configure
2. interface HundredGigEinterface-path
3. bundle id number mode active
4. lacp period short
5. end or commit
DETAILED STEPS
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters global configuration mode.
Step 2
interface HundredGigEinterface-path
Example:
RP/0/RP0/CPU0:router(config)# interface HundredGigE 0/1/0/1
Creates a Gigabit Ethernet interface and enters interface configuration mode.
Step 3
bundle id number mode active
Interface and Hardware Component Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release
6.1.x
106
Configuring Link Bundling
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