Functional Concepts; Wan Access; Routing; Security - Avaya X330W2-DS1 User Manual

Chapter 1 Overview

Functional Concepts

One basis for success in today's business world is combining resources. The
X330WAN supplies you with combined required access functionality for branch
offices and SMEs. The X330WAN was designed and developed to include all of the
functions necessary for branch offices and SMEs.
The following sections describe the overall concepts that together comprise the
functioning of the X330WAN access router.
For examples of common configurations using the following concepts, refer to
Chapter 4: Common Configurations.

WAN Access

WAN access provides a link for routing packets between their WAN and
Ethernet/LAN interfaces, enabling heavy data transfer. WAN access can connect
branch offices to headquarters, and provide fast access to the Internet and e-mail.
When combined with the Avaya G700 Gateway or to the Avaya DEFINITY VoIP
services are provided.

Routing

The X330WAN access router modules provides routing capabilities in a P330
device. They route packets between their WAN and Ethernet/LAN interfaces.The
X330WAN access router modules' routing software is based on the routing software
of the Avaya P333R and P333R-LB. It provides support for the major routing
protocols. It also provides a L3/L4 Policy classifier working per Layer 2
interface/direction, controlling access and QoS (tagging and mapping to internal
queuing mechanism). The X330WAN independently controls all traffic flow in the
P330 from the LAN to the WAN.

Security

The X330WAN currently contains the infrastructure for all security functionality
planned for future releases, such as Firewall and VPN. Licenses will be issued for
different security options, when development is completed.
Security currently can be achieved with the X330WAN for the initial release by
connecting the Fast Ethernet port of the X330WAN via an external firewall to a port
on the P330 switch. The X330WAN module is connected to the Internet via it's
WAN ports.

Convergence

The X330WAN enables a combined data and VoIP solution when used in
conjunction with a VoIP gateway, such as the G700. This is achieved by connecting
the G700 to the LAN's P330 stack, and inserting the X330WAN in one of the
2 Avaya X330W-2DS1 User's Guide