Multicast Routing
406
M4300 Series and M4300-96X Fully Managed Switches User Manual
Multicast Overview
Multicast is best suited for video and audio traffic requiring multicast packet control for
optimal operation. Multicast includes support for IGMPv2 and IGMPv3. Communication from
point to multipoint is called multicasting. The source host (point) transmits a message to a
group of zero or more hosts (multipoint) that are identified by a single IP destination address.
Although the task can be accomplished by sending unicast (point-to-point) messages to each
of the destination hosts, multicasting is the more desirable method for this type of
transmission. A multicast message is delivered to all members of its destination host group
with the same best-efforts reliability as regular unicast IP messages. The message is not
guaranteed to arrive intact at all members of the destination group or in the same order
relative to other messages.
View the Multicast Mroute Table
To view the Mroute Table:
1. Launch a web browser.
2. In the address field of your web browser, enter the IP address of the switch.
The login window opens.
3. Enter the user name and password.
The default admin user name is
admin and the default admin password is blank, that is,
do not enter a password.
4. Click the Login button.
The System Information page displays.
5. Select Routing > Multicast > Mroute T
able.
6. To refresh the page with the latest information on the switch, click the Update button.
The following table describes the nonconfigurable information that is displayed.
Table 149. Multicast Mroute Table
Field Description
Group IP The destination group IP address.
Source IP The IP address of the multicast packet source to be combined with the
group IP to fully identify a single route whose Mroute table entry.
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