Avaya P332G-ML Port Classification, Network Time Acquiring Protocols, Link Aggregation Group LAG

Chapter 1 Overview

Port Classification

With the P332G-ML, you can classify any port as regular or valuable. Setting a port to valuable means that a link fault trap can be sent even when the port is disabled. This feature is particularly useful for the link/intermodule redundancy application, where you need to be informed about a link failure on the dormant port.

Network TIME Acquiring Protocols

The P332G-ML supports the SNTP Protocol over UDP port 123. You can choose between SNTP or TIME protocol over UDP port 37.

Link Aggregation Group (LAG)

LAG provides increased bandwidth and redundancy for critical high-bandwidth applications such as inter-stack links and connections to servers. With the P332G- ML you can aggregate the bandwidth of groups of up to four 1000Base-X ports in a LAG, or pairs of adjacent 1000Base-X ports within a group, for a maximum of 6 LAGs per switch.

IP Multicast Filtering

IP Multicast allows you to send a single copy of an IP packet to multiple destinations, and can be used for various applications including video streaming and video conferencing.

On LANs, IP Multicast packets are transmitted in MAC Multicast frames. Traditional LAN switches flood these Multicast packets to all stations in the VLAN. Multicast filtering functions may be added to the Layer 2 switches to avoid sending Multicast packets where they are not required. Layer 2 switches capable of Multicast filtering send the Multicast packets only to ports that connect members of that Multicast group. In order for this feature to operate correctly, you need in your network a router issuing IGMP queries.

Note: IP Multicast filtering will function only based on the port's VLAN ID and not based on any VLAN bound to the port.

P332G-ML User’s Guide 5