TP-Link T2700G-28TQ T2700G-28TQ User Guide V1 - Page 244

Interface State, Send Router Alert

Page 244 highlights

Robustness: Query Interval: Query Max Response Time: Startup Query Interval: Startup Query Count: Last Member Query Interval: Last Member Query Count: Querier Timeout: Require Router Alert: Send Router Alert: Specify the robustness of the selected interface, ranging from 1 to 255. The default is 2. The robustness variable determines the aging time of the member port after it receives the report message. The aging time = robustness* general-query-interval + query-max-response-time. Specify the IGMP query interval at which IGMP router sends out a general query, ranging from 1 to 3600. The default is 60. When IGMP router sends out a query packet, the host should response within the specified Query Max Response Time, ranging from 1 to 25 seconds. The default is 10 seconds. When IGMP router starts up, it will send out a general query every Startup Query Interval, ranging from 1 to 300. The default is 15. The number of general queries to be sent on startup, ranging from 1 to 20. The default is 2. When the last member leaves a multicast group, IGMP router will send out a specific query every Last Member Query Interval, ranging from 1 to 5. The default is 1. The number of queries to be sent on receiving a leave group report, ranging from 1 to 20. The default is 2. Specify the time for Querier Timeout. A non-querier IGMP router will become a querier again after the specified timeout if no query report is received, ranging from 60 to 300. The default is 120. When Require Router Alert is enabled, the IGMP router will drop IGMP packets without router alert option. When Send Router Alert is enabled, the IGMP router will add router-alert-option to the query packets. 11.2.2 Interface State Choose the menu Multicast Routing→IGMP→Interface State to load the following page. Figure 11-6 Interface State The following entries are displayed on this screen:  Search Option Interface VLAN: Loopback: Enter the VLAN ID the desired entry must carry. Enter the Loopback ID the desired entry must carry. 232

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232
Robustness:
Specify the robustness of the selected interface, ranging from
1 to 255. The default is 2. The robustness variable determines
the aging time of the member port after it receives the report
message. The aging time = robustness* general-query-interval
+ query-max-response-time.
Query Interval:
Specify the IGMP query interval at which IGMP router sends
out a general query, ranging from 1 to 3600. The default is 60.
Query Max
Response Time:
When IGMP router sends out a query packet, the host should
response within the specified Query Max Response Time,
ranging from 1 to 25 seconds. The default is 10 seconds.
Startup Query
Interval:
When IGMP router starts up, it will send out a general query
every Startup Query Interval, ranging from 1 to 300. The
default is 15.
Startup Query
Count:
The number of general queries to be sent on startup, ranging
from 1 to 20. The default is 2.
Last Member Query
Interval:
When the last member leaves a multicast group, IGMP router
will send out a specific query every Last Member Query
Interval, ranging from 1 to 5. The default is 1.
Last Member Query
Count:
The number of queries to be sent on receiving a leave group
report, ranging from 1 to 20. The default is 2.
Querier Timeout:
Specify the time for Querier Timeout. A non-querier IGMP
router will become a querier again after the specified timeout if
no query report is received, ranging from 60 to 300. The
default is 120.
Require Router
Alert:
When Require Router Alert is enabled, the IGMP router will
drop IGMP packets without router alert option.
Send Router Alert:
When Send Router Alert is enabled, the IGMP router will add
router-alert-option to the query packets.
11.2.2 Interface State
Choose the menu
Multicast Routing→IGMP→
Interface State
to load the following page.
Figure 11-6 Interface State
The following entries are displayed on this screen:
Search Option
Interface VLAN:
Enter the VLAN ID the desired entry must carry.
Loopback:
Enter the Loopback ID the desired entry must carry.