Internet Group Management Protocol (Igmp) Querier; Internet Group Management Protocol (Igmp) Version 3 Snooping And Proxy; Ip Phone Automatic Poe Changes; Layer 3 Brouter Port - Avaya 4550T-PWR+ Fundamentals

New in this release

Internet Group Management Protocol (IGMP) Querier

When you configure IGMP Querier the system sends IGMP general queries to designated
sources when the switch or VLANs operate in Layer 2 mode. IGMP Querier sends IGMP
general queries to all ports, Multi-Link Trunks (MLT), Distributed Multi-Link Trunks (DMLT), and
Link Aggregation Groups (LAG) on the configured VLAN.
Internet Group Management Protocol (IGMP) version 3 Snooping
and Proxy
From Release 5.6 and up the switch supports full IGMPv3 Snooping and Proxy. IGMPv3
Snooping provides the ability to pack multiple group members in a single report message to
reduce the amount ot network traffic. When you enable IGMPv3 Snooping, you can use IGMP
proxy to receive and consolidate multiple reports for the same multicast group.

IP Phone automatic PoE changes

PoE settings and IP Phone discovery have been enhanced to allow the provision of PoE priority
levels and power limits when the system discovers an IP Phone.

Layer 3 Brouter Port

From Release 5.6 and up, the switch supports the configuration of brouter ports. A brouter port
is a single-port VLAN that can route IP packets as well as bridge all non-routable traffic. An
advantage of this feature is that it eliminates interruptions caused by Spanning Tree Protocol
recalculations in routed traffic.

Many to Many Port Mirroring

You can use Many to Many Port Mirroring to monitor more than one traffic pattern because
you can use multiple instances of port mirroring simultaneously. In a network that supports a
variety of complex scenarious, when you can monitor multiple traffic patterns you can, for
example, set up one port mirror to allow duplication of VoIP traffic for call recording processes
and use another instance for intrusion detection while additional instances remain available
for other activities or network troubleshooting.
6 Fundamentals
Comments? infodev@avaya.com
December 2011