Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - MULTICAST ROUTING CONFIGURATION GUIDE 2010-10-07 Configuration Manual page 226

JunosE 11.3.x Multicast Routing Configuration Guide
show multicast group limit
MLD Proxy Overview
204
Group Address : ff3e::1
Source List
See show ipv6 mld ssm-mapping.
Use to display the number of MLD groups that ports have accepted and, if configured,
the maximum number of groups that ports can accept.
A value of –1 indicates that no port group limit is configured.
Only ports that have accepted MLD groups and ports for which you have configured a
limit for the number of MLD groups appear in this display.
Field descriptions
Port—Identifier of the port in slot/port format
slot—Number of the chassis slot in the range 0–6 (ERX7xx models) or 0–13
(ERX14xx models)
port—Port number on the I/O module
limit—Maximum number of MLD groups that the port can accept. A value of –1
indicates that no limit has been specified.
count—Actual number of MLD groups the port has accepted
Example
host1:boston#show multicast group limit
Port limit count
--------- ----- -----
2/0 5
2/1 -1
See show multicast group limit.
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 205 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.
: 2001::1
: 2001::2
0
1
Copyright © 2010, Juniper Networks, Inc.