HP 2920 Series User Manual

Example 12 Showing active IGMP proxy entries
HP Switch(config)# show igmp-proxy entries
Total number of multicast routes: 2
Multicast Address Border Address VID Multicast Domain
----------------- -------------- ----- ------
234.43.209.12 192.168.1.1 1 George
235.22.22.12 15.43.209.1 1 SAM
226.44.3.3 192.168.1.1 2 George
Example 13 Showing IGMP proxy domains
HP Switch(config)# show igmp-proxy domains
Total number of multicast domains: 5
Multicast Domain Multicast Range Border Address Active entries
---------------- ----------------------- -------------- --------------
George 225.1.1.1/234.43.209.12 192.168.1.1 2
SAM 235.0.0.0/239.1.1.1 15.43.209.1 1
Jane 236.234.1.1/236.235.1.1 192.160.1.2 0
Bill ALL 15.43.209.1 0
Example 14 Showing active IGMP proxy VLANs
HP Switch(config)# show igmp-proxy vlans
IGMP PROXY VLANs
VID Multicast Domain Active entries
------ ---------------- --------------
1 George 1
1 Sam 1
1 Jane 0
2 George 1
4 George 0
4 Bill 0
Operating notes for IGMP proxy forwarding
• You can configure up to 12 multicast domains, which indicate a range of multicast addresses
and the IP address of the PIM-SM/PIM-DM border router.
• You must give each domain a unique name, up to 20 characters.
• The domains may have overlapping multicast ranges.
• The IP address of the border router may be the same or different in each configured domain.
• Duplicate IGMP joins are automatically prevented, or leaves that would remove a flow currently
joined by multiple hosts.
• Range overlap allows for redundant connectivity and the ability for multicasts to arrive from
different border routers based on the shortest path back to the source of the traffic.
• The configured domain names must be associated with one or more VLANs for which the
proxy joins are to be done.
• All routers in the path between the edge router receiving the initial IGMP packets and the
border router have to be configured to forward IGMP using IGMP proxy.
• All upstream and downstream interfaces using IGMP proxy forwarding require IGMP and PIM
to be enabled.
22 Multimedia Traffic Control with IP Multicast (IGMP)

HP 2920 Series Specifications

General

Brand	HP
Model	2920 Series
Category	Switch
Language	English