D-Link 3312SR - Switch Spécifications télécharger pdf (Page 79)

DGS-3212SR Stackable Gigabit Layer 2 Switch

Static Router Ports Entry

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:

• All IGMP Report packets will be forwarded to the router port.

• IGMP queries (from the router port) will be flooded to all ports.

• All UDP multicast packets will be forwarded to the router port. Because routers do not send IGMP reports or

implement IGMP snooping, a multicast router connected to the router port of the Layer 3 Switch would not be

able to receive UDP data streams unless the UDP multicast packets were all forwarded to the router port.

A router port will be dynamically configured when IGMP query packets, RIPv2 multicast, DVMRP multicast, and PIM-

DM multicast packets are detected flowing into a port.

Open the IGMP Snooping folder and then click on the Static Router Ports Entry link to open the Current Static

Router Ports Entries window, as shown below.

Figure 4- 30. Current Static Router Port Entries window

The window displays all of the current entries to the Switch’s static router port table. To modify an entry, click the Modify

button. This will open the Static Router Ports Settings window, as shown below.

Figure 4- 31. Static Router Ports Settings window

To configure a static router port(s):

1. Select the Unit containing the static router port.

2. Select the Port or Ports that will become static router ports.

3. Click Apply to let the changes take effect.

The following parameters are listed in the Static Router Port windows.

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 223 224

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D-Link 3312SR - Switch Spécifications Page 79