Operating Notes For Igmp Proxy Forwarding - HP ProCurve 2910al Switch Manual

Multimedia Traffic Control with IP Multicast (IGMP)
How IGMP Operates
2-24
ProCurve(config)# show igmp-proxy vlans
IGMP PROXY VLANs
VID Multicast Domain
------ ----------------
1 George
1 Sam
1 Jane
2 George
4 George
4 Bill
Figure 2-9. Example Showing Active IGMP Proxy VLANs

Operating Notes for IGMP Proxy Forwarding

You can configure up to 12 multicast domains. These domains will 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 long.
■ 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 mul­
■
ticasts 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.
■ You must remove all VLAN associations with the domain name before that
domain name can be removed.
Active entries
--------------
1
1
0
1
0
0