Allied Telesis AT-GS950/48, Руководство пользователя

Страница: 145 / 410

AT-GS950/48 Web Interface User Guide
145
5. To set the Age-Out Timer , type the number of seconds you want the
switch to wait before it purges an inactive dynamic MAC address.
The range of this parameter is from 280 to 420 seconds.
6. To enable the IGMP Snooping Querier, select Enabled from the pull-
down menu next to Querier Status .
If you want to disable the IGMP Snooping Querier, select Disabled .
7. To set the IGMP Snooping Query Interval , set the timer from 60 to
600 seconds.
8. To set the Max. Response Time for query messages, set the timer
from 10 to 25 seconds.
9. To set the robustness value for the VLANs, set the Robustness
Variable from 2 to 255. The robustness variable is an integer used
during IGMP snooping calculations for IGMP messages to allow for
expected packet loss.
10. To set the Last Member Query Interval , type the number of seconds
you want the switch to wait before it removes the group from the
associated VLAN port if no hosts respond to an IGMP query message.
The range of this parameter is from 1 to 25 seconds.
11. To set the aging time of the router port, set the Router Timeout
parameter from 120 to 12000 seconds.
12. Click Apply .
13. The IGMP Snooping Page is updated with active Multicast Group
addresses. See Figure 50 on page 146.
Note
The Multicast Group Address table contains MAC addresses of
nodes that are active members of multicast groups. To set a static
Multicast Group Address, see “Static Multicast Address
Configuration” on page 136.