
Data Link Switching Overview
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Figure 1-2. Receiving a Message Addressed to a Multicast Group
You can use Site Manager to specify an IP multicast group address and associate it
with a DLSw slot or slots. For instructions, see “Configuring DLSw for IP
Multicasting” in page 4-35.
Sample Connection Using DLSw and IP Multicasting
Figure 1-3 shows a pair of routers running DLSw in RFC 2166 mode. On router
A, IP and DVMRP are running on slot 2, and DLSw is running on slot 3. On
router B, DLSw is running on slot 2, and IP and DVMRP are running on slot 3.
Router A connects to end station 1 through a DLSw interface on slot 3. Router A
has an IP interface on slot 2 to the IP multicast network. Routers B and C are
configured identically. Both connect to hosts through a DLSw interface on slot 2.
Both have an interface to the IP network on slot 3.
On router A, the network administrator has assigned IP multicast group address
224.0.10.0 to DLSw slot 3. On router B, the network administrator has assigned
group address 224.0.10.0 to DLSw slot 2
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