Chapter 3: Terminal Menu Operation and Structure

Filters/Out Exceptions

Write security: 2; Read security: 5

This is a list of up to 32 filter entries. The setup is exactly the same as the Filter/

In Exceptions list.

Filters/Demand Dial

Write security: 2; Read security: 5

The demand dial filters have two purposes: 1) cause the Express XL/XLT in Bridge mode to dial this Connection List profile, and 2) determine which traf- fic will cause the idle timer to be reset, keeping the connection active. The lat- ter is used in Bridge or IP/IPX Router mode. The idle timer is a timer in the Express XL/XLT which continually increments until it reaches the idle time- out parameters value set in the Connection List, at which point the connection is hung-up.

When this filter is enabled, direct control can be placed over which packets are considered as demand and which are ignored. Packets that are ignored cause a connection not to be dialed and do not reset the idle timer of an active con- nection. This is especially helpful for bridged connections since bridges can- not easily distinguish true demand traffic from overhead traffic like certain broadcast and multicast packets. There are three possible selections for this parameter:

Disabled (def) - Turns off demand dial filtering. No packets cause demand dialing for this profile and all outgoing and incoming packets reset the idle timer.

Ignore All - When connected in any mode (Bridge, IP Router, or IPX router), the idle timer is reset only when there is a match in the Filters/Dem Dial Exceptions list. When not connected in Bridge mode only, causes the Express XL/XLT to dial using this Connection List profile if there is a match in the Filters/Dem Dial Exceptions.

Demand All - When connected in any mode (Bridge, IP Router, or IPX router), the idle timer is always reset except when there is a match in the Filters/Dem Dial Exceptions list. When not connected in Bridge mode only, causes the Express XL/XLT to dial using this Connection List profile if there is NOT a match in the Filters/Dem Dial Exceptions list.

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ADTRAN Express XLT user manual Filters/Out Exceptions, Exceptions list Filters/Demand Dial
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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.
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