Intel ZT 8101 10/100 user manual PIM-DMSetup, Static Router Port Settings, Using the Web Console

Using the Web Console

5. Click Apply.

PIM-DM Setup

The Protocol Independent Multicast - Dense Mode (PIM-DM) protocol should be used in networks with a low delay (low latency) and high bandwidth because PIM-DM is optimized to guarantee delivery of multicast packets, not to reduce overhead.

To configure PIM-DM for an IP interface

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

2.In the top panel, click PIM-DIM Interface Configurations.

3.Select the interface and click Edit.

4.Configure these fields.

Field	Description
	Specifies the interval between sending Hello packets to other routers on the
	network. The Hello messages are used by the router to determine whether it
Hello Interval	is the root router on the delivery tree or not. If the router does not receive a
	Hello message within the Hello Interval, it will begin transmitting Hello
	messages to advertise its availability to become the root router. The range is
	between 1—65535 seconds. The default is 30 seconds.
	Specifies the interval for performing these tasks:
	• Removing prune information from a branch of a multicast delivery tree.
Join/Prune Interval	• Flooding multicast messages to all branches of that delivery tree.
	These two actions are equivalent. The range is between 1— 65535
	seconds. The default is 60 seconds.
State	Disables or enables PIM-DM for this IP interface. The default is Disabled.

5. Click Apply.

Static Router Port Settings

A static router port allows UDP multicast and IGMP packets to be forwarded to a designated port regardless of VLAN configuration.

A router port functions within Layer 2 of the OSI model. A static router port is a port that has a 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. It also allows multicast messages coming from the network to be propagated to the router.

The purpose of a router port is to enable UDP multicast packets and IGMP multicast group membership messages to reach multiple ports of a multi-port router. Routers do not implement IGMP snooping or transmit/forward IGMP report packets. Thus, forwarding all IP UDP multicast packets to a static router port on the ZT 8101 switch guarantees that all ports of a multi-port router, which are attached to the switch, can reach all multicast group members through the attached router's other ports.

A router port interacts with multicast packets in these ways:

130 Intel® NetStructure™ ZT 8101 10/100 Ethernet Switch User’s Manual