DES-3550 Layer 2
Fast Ethernet Switch User’s Guide
49
Parameter
Description
VLAN ID
This is the
VLAN ID
that, along with the VLAN name, identifies the VLAN
that the user wishes to modify the IGMP Snooping Settings for.
VLAN Name
This is the
VLAN Name
that, along with the VLAN ID, identifies the VLAN
that the user wishes to modify the IGMP Snooping Settings for.
Query Interval
The
Query Interval
field is used to set the time (in seconds) between
transmitting IGMP queries. Entries between 1 and 65535 seconds are
allowed. Default = 125.
Max Response Time
This determines the maximum amount of time in seconds allowed before
sending an IGMP response report. The
Max Response Time
field allows an
entry between 1 and 25 (seconds). Default = 10.
Robustness Variable
Adjust this variable according to expected packet loss. If packet loss on the
VLAN is expected to be high, the
Robustness Variable
should be increased
to accommodate increased packet loss. This entry field allows an entry of 1
to 255. Default = 2.
Last Member Query
Interval
Specifies the maximum amount of time between group-specific query
messages, including those sent in response to leave group messages.
Default = 1.
Host Timeout
This is the maximum amount of time in seconds allowed for a host to
continue membership in a multicast group without the Switch receiving a
host membership report. Default = 260.
Route Timeout
This is the maximum amount of time in seconds a route is kept in the
forwarding table without receiving a membership report. Default = 260.
Leave Timer
This specifies the maximum amount of time in seconds between the Switch
receiving a leave group message from a host, and the Switch issuing a
group membership query. If no response to the membership query is
received before the
Leave Timer
expires, the (multicast) forwarding entry for
that host is deleted.
Querier State
Choose
Enabled
to enable transmitting IGMP Query packets or
Disabled
to
disable. The default value is
Disabled
.
State
Select
Enabled
to implement IGMP Snooping. This field is
Disabled
by
default.
Click
Apply
to implement the new settings. Click the
Show All IGMP Group Entries
link to
return to the
Current IGMP Snooping Group Entries
window.
Static Router Ports
A static router port is a port that has a multicast router attached to it. Generally, this router
would have a connection to a WAN or to the Internet. Establishing a router port will allow
multicast packets coming from the router to be propagated through the network, as well as
allowing multicast messages (IGMP) coming from the network to be propagated to the router.
A router port has the following behavior:
Содержание DES-3550
Страница 1: ...D Link DES 3550 Managed 48 port 10 100Mbps and 2GE ports Layer 2 Ethernet Switch Manual...
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Страница 72: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 72 Figure 6 24 Bandwidth Settings and Port Bandwidth Table...
Страница 77: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 77 Figure 6 27 Port Security Settings window...
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Страница 107: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 107 Figure 6 58 802 1X Authenticator Settings window...
Страница 110: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 110 Figure 6 60 802 1x Capability Settings and Table window...