Avaya Configuring IP Multicasting and Multimedia Services Uživatelský manuál stáhnout pdf (Strana 69)

100

101

Configuring and Customizing IGMP

117355-D Rev 00

3-19

Specifying a Query Rate

By default, IGMP sends a group membership query on the interface every 120

seconds (2 minutes). You can use the BCC or Site Manager to disable queries or to

specify a query rate from 1 through 4096 seconds (1 hour, 8 minutes, and 16

seconds).

Specifying 0 disables queries only. The router still forwards multicast datagrams

on this circuit.

Using the BCC

To specify a query rate or to disable queries, navigate to the IGMP prompt for the

interface (for example,

box; ethernet/2/1; ip/2.2.2.2/255.255.255.0; igmp

) and

enter:

query-rate

<rate>

rate

is the number of seconds from 0 (disabling queries) through 4096.

For example, the following command specifies a query rate of 300 seconds

(5 minutes):

igmp/2.2.2.2/3#

query-rate 300

igmp/2.2.2.2/3#

Note:

If another IGMP router on this network has assumed the query role, this

router will not send out queries unless it has not heard of any queries within

the number of seconds specified by the designated router timeout parameter

(see “

Specifying a Designated Router Timeout Interval” on page 3-22).

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