Chapter 29: Multilink Frame Relay - Avaya 1000 Series Configuration Manual

Chapter 29: Multilink Frame Relay

Frame Relay service providers can use Avaya products to offer multimegabit service of 3 to 24 Mb/s using
standard T1 local loops. These services can be used for both Intranet and Internet applications. Depending
on the needs of the customer, Avaya products can perform router functionality or be installed simply as a
Multilink Frame Relay multiplexer in front of an existing router. This application describes both
configurations.
Features:
• Low cost and scalable multimegabit access using standard T1 access
• Flexible feature support (NAT, packet filtering, CBQ, routing) depending on customer needs
• Internet and Intranet access supported in one box
• Command Line Interface (CLI) and SNMP support for easy management
• Aggregation of FT1, T1, and NxT1 customers using PPP/MLPPP, HDLC, and Frame Relay/MFR in
one product
• Low cost aggregation for remote POPs in emerging markets
Figure 29: Multilink Frame Relay Switching
The illustration above shows a customer with three sites being served by a frame relay provider. The site in
Madison requires only one T1, and it relies on Lansing for Internet access. At Lansing, the Secure Router
provides MFR access to the Internet as well as a PVC to the other sites. Dayton has an existing router
and needs the Secure Router to provide NxT1 access. By using IP multiplexing, the Secure Router can
transparently provide access to the router while also performing CPU intensive tasks such as packet
filtering, NAT, or CBQ.
Avaya Secure Router 1000 Series Configuration Guide December 2010 187