Avaya Configuring ATM Services User Manual Page 107

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Customizing LAN Emulation Clients
117374-A Rev. A 8-7
Setting the Forward Delay Time
While there are no changes occurring in the network topology, the Forward Delay
Time parameter defines the maximum amount of time that a LEC can maintain an
entry in its LE ARP cache without having to verify the relationship of that entry.
By default, the LEC maintains entries for 15 seconds, so long as the network
topology does not change. However, you can set the Forward Delay Time
parameter to a value from 4 to 30 seconds.
Defining the Expected LE_ARP Response Time
The Expected LE_ARP Response Time parameter defines the amount of time that
the LEC expects an ARP request and ARP response cycle to take. The LEC uses
this value during retries and verifications.
By default, the LEC expects an ARP request and ARP response cycle to take a
maximum of 3 seconds. However, you can set the LE_ARP Response Time to a
value from 1 to 30 seconds.
Setting the Path Switching Delay
The Path Switching Delay parameter defines the amount of time that the LEC
waits after sending a frame over an old VCC before it switches to a new VCC (this
applies to multicast and data direct VCCs).
You can use the Path Switching Delay parameter to bypass the Flush protocol.
When you disable the Flush protocol, the data for a specific MAC address
automatically begins flowing over a new VC when the path switching delay time
elapses.
By default, the LEC waits a maximum of 6 seconds after sending a frame over an
old VCC before it switches to a new VCC. However, you can set the Path
Switching Delay parameter to a value from 1 to 8 seconds.
Appendix , “Forward Delay Time
Appendix , “Expected LE_ARP Response Time
Appendix , “Path Switching Delay
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