ADTRAN Express XLT Probe/Update Window, Connection List/PPP, PPP/Multilink, Multilink/Mode

Models: Express XLT Express XL

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Chapter 3: Terminal Menu Operation and Structure

Probe/Update Window

Write security: 3; Read security: 5

This is the time the Express XL/XLT stays connected during a probe. Normal- ly route and service tables are exchanged immediately after connection. How- ever, some routers could wait until their regular RIP or SAP time period has been reached before they advertise their routes or services to the Express XL/ XLT. The value is in seconds and ranges from 5 to 180. The default is 5 seconds and assumes that a routing update is received upon connection.

Connection List/PPP

The Express XL/XLT supports the IETF standards for the Point-to-Point Pro- tocol. The PPP state machine running in the Express XL/XLT can be fine- tuned to support many applications that can be employed. The configurable items under this menu can be changed from their default values forspecialcases.

PPP/Multilink

Multilink PPP allows the two B-channels to be used together for increased bandwidth.

Multilink/Mode

Write security: 3; Read security: 5

When this item is set to On (def), Multilink PPP is negotiated with the PPP peer. When Off, the Express XL/XLT will only allow one B-channel for this connection.

Multilink/Fragment Write security: 3; Read security: 5

When this item is set to Yes (def), the Express XL/XLT will split outgoing packets greater than 128 bytes into two Multilink fragments and simulta- neously transmit them one per B-channel. The receiving PPP peer will then re- assemble them. This decreases the transport delay. However, some legacy equipment might have trouble handling fragmented packets, in which case this option should be set to No.

Multilink/BACP

Write security: 3; Read security: 5

The Bandwidth Allocation Control Protocol (BACP) and Bandwidth Alloca- tion Protocol (BAP) are used to enhance Multilink PPP. Together, they allow

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Express XL/XLT User Manual

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ADTRAN Express XLT user manual Probe/Update Window, Connection List/PPP, PPP/Multilink, Multilink/Mode, Multilink/BACP

Express XLT, Express XL specifications

ADTRAN has established itself as a leading provider of telecommunications solutions, and among its impressive lineup, the ADTRAN Express XL and Express XLT stand out as robust offerings designed for the evolving demands of modern networks. These devices cater to service providers and enterprises looking to enhance their broadband delivery capabilities while ensuring cost-efficiency and reliability.

The ADTRAN Express XL is a high-capacity, next-generation fiber optic access platform. It is engineered to support a wide array of technologies, including Passive Optical Network (PON) standards such as GPON and XGSPON. The Express XL's architecture allows for seamless scalability, making it a perfect fit for both small-scale deployments and expansive network rollouts. What sets it apart is its ability to deliver ultra-fast broadband services to residential, business, and mobile backhaul customers with its impressive throughput capabilities.

On the other hand, the Express XLT builds upon the success of the Express XL by incorporating advanced features aimed at maximizing operational efficiency. It supports technologies including Active Ethernet and offers flexible network configurations to meet specific service requirements. Both models utilize ADTRAN’s innovative Dynamic Bandwidth Allocation technology, which dynamically allocates bandwidth to users based on real-time demand, ensuring optimal performance and user satisfaction.

A key characteristic of both ADTRAN Express XL and XLT is their energy efficiency. Designed to minimize operational costs, these units use power-saving technologies that reduce energy consumption without compromising performance. Furthermore, they include built-in support for network functions virtualization (NFV) and software-defined networking (SDN), providing operators with the agility to adapt their networks in response to changing market conditions.

In addition to their advanced technological underpinnings, the Express XL and XLT boast an intuitive management interface, simplifying network monitoring and management tasks. They also feature comprehensive telemetry and analytics capabilities that help operators gain insights into network performance, optimize configurations, and troubleshoot potential issues before they affect end users.

Ultimately, the ADTRAN Express XL and Express XLT are pivotal components for service providers aiming to deliver high-speed broadband services effectively. With their blend of flexibility, scalability, and energy efficiency, these access platforms are well-positioned to meet the current and future demands of telecommunications networks worldwide.