MitraStar Movistar GPT-2541GNAC, Руководство пользователя

Страница: 139 / 226

Table 83 Multicast
LABEL DESCRIPTION
Multicast
Precedence
Set the Router’s multicast precedence (1 to 9) or disable multicast on the Router. The
lower the number, the higher the Router’s multicast priority.
IGMP/MLD Configuration
Default Version Enter the version of IGMP (1~3) and MLD (1~2) that you want the Router to use on the
WAN.
Query Interval Specify how many seconds since the last query the Router waits before it queries all
directly connected networks to gather multicast group membership.
Query Response
Interval
Enter the maximum number of seconds the Router can wait to receive a General
Query message. Multicast routers use general queries to learn which multicast
groups have members.
Last Member
Query Interval
Enter the maximum number of seconds the Router can wait for receiving a response
to a Group-Specific Query message. Multicast routers use group-specific queries to
learn whether any member remains in a specific multicast group.
Robustness Value Enter the number of times (1~7) the Router can resend a packet if packet loss occurs
due to network congestion.
Maximum
Multicast Groups
Enter a number to limit the number of multicast groups an interface on the Router is
allowed to join. Once a multicast member is registered in the specified number of
multicast groups, any new IGMP or MLD join report frames are dropped by the
interface.
Maximum
Multicast Data
Sources
Enter a number to limit the number of multicast data sources (1-24) a multicast group
is allowed to have. Note: The setting only works for IGMPv3 and MLDv2.
Maximum
Multicast Group
Members
Enter a number to limit the number of multicast members a multicast group can
have.
Fast Leave Enable Select this option to set the Router to remove a port from the multicast tree
immediately (without sending an IGMP or MLD membership query message) once it
receives an IGMP or MLD leave message. This is helpful if a user wants to quickly
change a TV channel (multicast group change) especially for IPTV applications.
Apply/Save Click this button to save your changes.
Chapter 19 Multicast 139
s: My Network Places: Properties: Example