HP ProCurve 2910al Switch User Manual

Multimedia Traffic Control with IP Multicast (IGMP)
How IGMP Operates
How IGMP Proxy Forwarding Works
The following steps illustrate how to flood a flow from the PIM-SM domain
into the PIM-DM domain when an IGMP join for that flow occurs in the
PIM-DM domain (refer to figure 2-4).
1. Routing Switch 1 is configured with the IGMP proxy forwarding function
to forward joins towards Border Router 1. Routing Switch 1 is also
configured to forward joins from VLAN 1 toward Border Router 2, as is
VLAN 4 on Routing Switch 3.
2. VLAN 2 on Routing Switch 2 is configured to forward joins toward Border
Router 1.
3. When the host connected in VLAN 1 issues an IGMP join for multicast
address 235.1.1.1, the join is proxied by Routing Switch 1 onto VLAN 2 and
onto VLAN 4. The routing information table in Routing Switch 1 indicates
that the packet to Border Router 1 and Border Router 2 is on VLAN 2 and
VLAN 4, respectively.
2-19

HP ProCurve 2910al Switch Specifications

General

Model	HP ProCurve 2910al Switch
Layer	Layer 3
Jumbo Frame Support	Yes
Power Device	Internal power supply
VLAN Support	Yes
Power Supply	100-240 VAC, 50/60 Hz
Ports	24 or 48 x 10/100/1000 ports
Uplink Ports	4 x SFP (mini-GBIC)
Stacking	Yes
MAC Address Table Size	32000 entries
Routing Protocol	RIP, OSPF, BGP, IGMP
Remote Management Protocol	SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, TFTP
Features	VLAN, QoS, IPv6, ACLs
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3af
Operating Temperature	0 to 45°C
Operating Humidity	15% to 95% (noncondensing)
Power over Ethernet (PoE)	PoE+ (802.3at) on PoE+ models, PoE (802.3af) on PoE models