Juniper JUNOSE 11.1.X MULTICAST ROUTING, Руководство по настройке

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slot—Number of the chassis slot in the range 0–6 (ERX7xx models) or
0–13 (ERX14xx models)
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port—Port number on the I/O module
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limit—Maximum number of MLD groups that the port can accept. A value
of –1 indicates that no limit has been specified.
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count—Actual number of MLD groups the port has accepted
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Example
host1:boston# show multicast group limit
Port limit count
--------- ----- -----
2/0 5 0
2/1 -1 1
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See show multicast group limit.
MLD Proxy Overview
MLD proxy enables the router to issue MLD host messages on behalf of hosts that
the router discovered through standard MLD interfaces. The router acts as a
proxy
for its hosts. The E Series router supports MLD proxy versions 1 and 2.
Figure 20 on page 209 shows a router in an MLD proxy configuration. You enable
MLD proxy on one interface, which connects to a router closer to the root of the tree.
This interface is the
upstream interface . The attached upstream router on the upstream
interface should be running MLD.
You enable MLD on the interfaces that connect the router to its hosts that are farther
away from the root of the tree. These interfaces are known as
downstream interfaces .
Figure 20: Upstream and Downstream Interfaces
MLD Proxy Overview
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Chapter 6: Configuring Multicast Listener Discovery