Allied Telesis AT-S63 - Manual (Page 353)

AT-S63 Management Software Command Line Interface User’s Guide
Section III: IGMP Snooping, MLD Snooping, and RRP Snooping 353
for queries from the router. If the switch does
not detect any queries from a multicast
router during the specified time interval, the
router is assumed to be no longer active on
the port.
The actual timeout may be ten seconds less
that the specified value. For example, a
setting of 25 seconds can result in the switch
classifying a host node or multicast router as
inactive after just 15 seconds. A setting of 10
seconds or less can result in the immediate
timeout of an inactive host node or router.
numbermulticastgroups Specifies the maximum number of multicast
addresses the switch can learn. This
parameter is useful with networks that
contain a large number of multicast groups.
You can use the parameter to prevent the
switch’s MAC address table from filling up
with multicast addresses, leaving no room
for dynamic or static MAC addresses. The
range is 0 to 255 addresses; the default is
64 addresses.
Note
The combined maximum number of multicast address groups for
IGMP and MLD snooping cannot exceed 255.
routerport Specifies the port(s) on the switch
connected to a multicast router. Options are:
port Specifies the router port(s)
manually.
all Specifies all of the switch ports.
none Sets the mode to manual
without any router ports
specified.
auto Activates auto-detect, where
the switch automatically
determines the ports with
multicast routers.
Description
This command configures the IGMP snooping parameters.