VLANs are assigned.

x IGMP Snooping relates to the protocol IGMP. IGMP enables routers to create lists of devices that are members of multicast groups. A multicast group might consist of all users that want to see the company yearly meeting on video.

Video is a multicast application. IGMP snooping enables the switch to monitor the flow of queries from the devices and the routers. IGMP snooping improves the switches' performance by restricting the flow of multicast packets to only those switch ports, which have devices receiving the multicast (video).

x IGMP Snooping Table Aging Time is the time the switch will maintain its multicast group(s). It controls how frequently the switch expects to see information from devices that stay members of multicast groups and process leaving requests.

Switch Port Configuration

Figure 4-11. Port Administration in Switch Port Configuration Menu

The ports are divided and displayed in three separate pages. In the Port Administrative Configuration menu, select the port to configure the characteristics such as speed, flow control, and VLAN ID as well as the following features provided with the system:

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Milan Technology MIL-S3580 manual VLANs are assigned