Avaya X330WAN manual Sample Applications, Branch Office Connectivity to Headquarters

Chapter 1 Introduction

•Weighted Random Early Detection (WRED) - X330WAN uses WRED on its ingress and egress queues in order to improve the performance of the network when overloaded. The purpose of WRED is to indicate to transmitting hosts to reduce their transmission speed when the ingress X330WAN queues are congested. For more detailed information, refer to "Frame Relay Encapsulation" on page 46.

•Policy - Each Serial interface, the Fast Ethernet port, and the FabricFastEthernet interface can have an ingress and egress active Policy list. X330WAN can enforce QoS Policy on routed packets and change their 802.1p priority, according to the packet characteristics.

X330WAN allows changing the DSCP value in the IP header of a packet based on packet characteristics (DSCP coloring).

In addition, X330WAN supports Access Control policies that define which packets should be forwarded or denied access to the network. For more detailed information, refer to "Policy" on page 48.

•RTP Header Compression - X330WAN saves up to 60% of the bandwidth necessary using RTP compression. It also enhances the efficiency of voice transmission over the network by compressing the headers of Real Time Protocol (RTP) packets, thereby minimizing the overhead and the delays involved in RTP implementation. For more detailed information, refer to "RTP Header Compression (cRTP)" on page 53.

Sample Applications

The primary uses of the X330WAN are:

•Branch Office connectivity to Headquarters.

•Small/Medium Business connectivity directly to an ISP (Internet Service Provider).

For illustrations and configuration examples of common applications, refer to Chapter 4: Operational Concepts and Configuration Examples.

Branch Office Connectivity to Headquarters

X330WAN enables connecting branch office LANs, based on the P330 switch, to a central office to access the corporate WAN. Each branch office in this solution is connected to the headquarters office via a leased line or Frame Relay service, and therefore uses the Internet services supplied via the headquarters ISP. The branch office can also connect directly to the Internet, independent of the headquarters office.

Installing an X330WAN Access Router in an Avaya G700 Media Gateway provides cost-effective and space-saving IP Telephony and WAN routing for SMEs (Small/Medium Enterprises).

4 Avaya X330WAN User’s Guide