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DES-3010F/DES-3010FL/DES-3010G/DES-3016/DES-3018/DES-3026 Fast Ethernet Switch Manual
99
Static Router Ports Settings
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 a 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 or PIM-DM multicast packets are detected flowing into a port.
To view this window click, L2 Features > IGMP Snooping > Static Router Ports Settings
Figure 7- 14. Static Router Ports Settings window
The Static Router Ports Settings page (shown above) 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 - Modify page, as shown below.
Figure 7- 15. Static Router Ports Settings - Modify window
The following parameters can be set:
Parameter Description
VID
This is the VLAN ID that, along with the VLAN Name, identifies the VLAN where the multicast
router is attached.
VLAN Name
This is the name of the VLAN where the multicast router is attached.
Member Ports
These are the ports on the Switch that will have a multicast router attached to them.
Click Apply to implement the new settings, Click the Show All Static Router Port Entries link to return to
the Current Static Router Port Entries window.