Configuring The Amap Common Timeout Interval; Displaying Amap Information - Alcatel OmniSwitch 6624 Network Configuration Manual
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Configuring AMAP
Configuring the AMAP Common Timeout Interval
The common timeout interval is used only in the common transmission state to determine the time inter-
val between sending Hello update packets. A switch sends an update for a port just before or after the
common timeout interval expires.
Note. Switches avoid synchronization by jittering the common timeout interval plus or minus 10 percent
of the configured value. For example, if the default common timeout interval is used (300 seconds), the
jitter is plus or minus 30 seconds.
When a Hello packet is received from an adjacent switch before the common timeout interval expires, the
switch sends a Hello reply and restarts the common transmission timer.
The common timeout interval is set to 300 seconds by default. To display the current common timeout
interval, enter the following command:
-> show amap
To change the common timeout interval, use either of these forms of the command with the desired value
(any value between 1 and 65535). Note that use of the time command keyword is optional. For example:
-> amap common 600
-> amap common time 600
Displaying AMAP Information
Use the
show amap
interfaces, VLANs, and IP addresses. For remote switches that stop sending Hello packets and that are
connected via a hub, entries may take up to three times the common timeout intervals to age out of this
table.
The following example shows three interfaces on a local AMAP switch (4/1, 5/1, 7/1) connected to inter-
faces on two remote switches. Interface 5/1 is connected to a remote switch through a hub.
-> show amap
AMAP is currently enabled,
AMAP Common Phase Timeout Interval (seconds) = 300,
AMAP Discovery Phase Timeout Interval (seconds) = 30
Remote Host Description = Switch B
Remote Host Base MAC = 00:20:da:03:2c:40
Local Interface = 4/1, VLAN = 1
Remote Interface = 2/1, VLAN = 2
Remote IP Address Configured = 4
18.1.1.1
27.0.0.2
192.168.10.1
192.206.184.40
Remote Host Description = Switch C
Remote Host Base MAC = 00:20:da:99:96:60
Local Interface = 5/1, VLAN = 1
Remote Interface = 1/8, VLAN = 7
Remote IP Address Configured = 1
192.206.184.20
page 8-6
command to view a list of adjacent switches and their associated MAC addresses,
OmniSwitch 6624/6648 Network Configuration Guide
Using Interswitch Protocols
April 2004
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