Configuring Vlacp Flap Detect And Damping - Avaya 8600 Configuration Manual

Variable
PortState

Configuring VLACP flap detect and damping

Configure VLACP flap detect and damping to automatically shut down a VLACP link that is
flapping.
Prerequisites
• Make sure that the VLACP flap interval is long enough to recognize that a port is flapping.
(The default settings may not allow enough time.) A VLACP down event does not occur until
the receiving side has not seen a VLACP PDU for a number of seconds (Timout x
TimeoutScale). Then this has to happen several times (FlapFrequency) within a specified
period of time (FlapInterval).
To ensure that the interval is long enough, use the following formula:
FlapInterval > FlapFrequency x Timout x TimeoutScale
The FlapInterval and FlapFrequency commands are described in this procedure.
Note:
VLACP flap detect is also triggered when there is a physical link down event on the
underlying Ethernet port. This replaces the link-flap-detect global functionality, which is by
default enabled.
For information on the Timout and TimeoutScale commands, see
a port on page 81.
Procedure steps
1. On the Device Physical View, select a port.
2. In the navigation tree, open the following folders: Configuration > Edit > Port.
3. Click General.
4. Click the VLACP tab.
5. Configure the remaining fields as required.
6. Click Apply.
Configuration — Link Aggregation, MLT, and SMLT
Specifies the VLACP port state.
Configuring VLACP flap detect and damping
Value
Configuring VLACP on
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