
Configuring and Customizing IGMP
117355-C Rev 00
3-21
Specifying the Lifetime of an Mtrace Cache Entry
IGMP creates entries in the forwarding cache specifically for the Mtrace utility.
By default, IGMP keeps these entries in the forwarding cache for a maximum of
30 seconds.
You can use the BCC or Site Manager to specify a different lifetime value from 30
to 8192 seconds.
Using the BCC
Navigate to the IGMP prompt for the interface and enter:
mtrace-lifetime
<seconds>
seconds
is an integer from 30 to 8192 seconds.
For example, the following command sets the Mtrace cache entry lifetime to 60
seconds:
igmp/2.2.2.2/3#
mtrace-lifetime 60
igmp/2.2.2.2/3#
Using Site Manager
To specify the lifetime of an Mtrace cache entry:
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose
Protocols
.
The Protocols menu opens.
2. Choose
IP
. The IP menu opens.
3. Choose
Multicast
. The Multicast menu opens.
4. Choose
IGMP/IGMP Relay
. The IGMP menu opens.
5. Choose
Interfaces
. The IGMP Interface Parameters window
opens.
6. Set the
Mtrace Entry Lifetime
parameter.
Click on
Help
or see the parameter
description on page A-23.
7. Click on
Apply
, and then click on
Done
. You return to the Configuration Manager
window.
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