Intel ZT8101 user manual DVMRP Interface Configurations, To configure IGMP for an IP interface

Using the Web Console

To configure IGMP for an IP interface

1.In the left panel, click Layer 3 IP Networking.

2.In the top panel under IP Multicast Routing Protocols, click IGMP Interface Configurations.

3.Select an interface and click Edit.

4.Configure these fields.

Field	Description
Version	Specifies the version number of IGMP to be used with the IP interface.
	Select between 1 and 2.
Query Interval	Specifies the time (in seconds) between the transmission of IGMP query
	packets. Enter a value between 1— 65535 seconds. The default is 125.
Max Response Time	Specifies the maximum time the switch can wait for reports from members.
	Enter a value between 1— 25. The default is 10 seconds.
Robustness Variable	Specifies the permitted packet loss on a link. Enter a value between 1— 255.
	The default is 2.
State	Enables or disables IGMP on this IP interface.

5. Click Apply.

DVMRP Interface Configurations

The Distance Vector Multicast Routing Protocol (DVMRP) is a hop-based method of building multicast delivery trees from multicast sources to all nodes of a network. Because the delivery trees are “pruned” and use the “shortest path,” DVMRP is relatively efficient. Because multicast group membership information is forwarded by a distance-vector algorithm, propagation is slow. DVMRP is optimized for high delay (high latency) and relatively low-bandwidth networks, and it can be considered as a “best-effort” multicasting protocol.

To configure DVMRP for an IP interface

1.In the left panel, click Layer 3 IP Networking.

2.In the top panel, click DVMRP Interface Configurations.

3.Select the interface and click Edit.

4.Configure these fields.

Field	Description
	Specifies the maximum interval the switch will wait to hear from a neighbor.
Neighbor Timeout Interval	If this interval expires, the switch assumes that this neighbor is down. Enter
	a value from 1— 65535. The default is 35.
	Specifies the interval between probes. A probe is a query to other routers to
Probe Interval	determine if a multicast group is present on a given router subnetwork.
	Enter a value from 1— 65535 seconds. The default is 10.
	Specifies cost for this path. The higher the assigned cost, the less likely it is
Metric	that multicast packets will be routed over this interface (provided that other
	path options exist). Enter a value between 1— 31. The default is 1.
State	Enables or disables DVMRP for this interface.

118 ZT8101 Users Guide