ZyXEL Communications GS2220 Series - MLD Snooping-Proxy VLAN

Chapter 24 Multicast
GS2220 Series User’s Guide
235
24.4.2 MLD Sno o ping - pro xy VLAN
Click the VLAN link in the Adva nc e d Applic a tio n > Multic a st > IPv6 Multic a st > MLD Snoo ping - pro xy
screen to display the screen as shown. See Section 24.1 on page 223 for more information on
multicasting.
Fig ure 180 Advanced Application > Multicast > IPv6 Multicast > MLD Snooping-proxy > VLAN
The following table describes the fields in the above screen.
Table 103 Advanced Application > Multicast > IPv6 Multicast > MLD Snooping-proxy > VLAN
LABEL DESCRIPTIO N
VID Enter the ID number of the VLAN on which you want to enable MLD snooping-proxy and
configure related settings.
Upstream
Query Interval Enter the amount of time (in miliseconds) between general query messages sent by the
router connected to the upstream port. This value should be exactly the same as what is
configured in the connected multicast router.
This value is used to calculate the amount of time an MLD snooping membership entry
(learned only on the upstream port) can remain in the forwarding table.
When an MLD Report message is received, the Switch sets the timeout period of the entry
to be T = (QI*RV) + MRD, where T = Timeout, QI = Query Interval, RV = Robustness Variable,
and MRD = Maximum Response Delay.
Maximum Response
Delay
Enter the amount of time (in miliseconds) the router connected to the upstream port waits
for a response to an MLD general query message. This value should be exactly the same
as what is configured in the connected multicast router.
This value is used to calculate the amount of time an MLD snooping membership entry
(learned only on the upstream port) can remain in the forwarding table.
When an MLD Report message is received, the Switch sets the timeout period of the entry
to be T = (QI*RV) + MRD, where T = Timeout, QI = Query Interval, RV = Robustness Variable,
and MRD = Maximum Response Delay.
When an MLD Done message is received, the Switch sets the entry’s lifetime to be the
product of La st Me mb e r Q ue ry Inte rva l and Ro bustne ss Va ria ble .