ADTRAN ISU 128 user manual PPP with Compression

Models: ISU 128

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Chapter 7. Protocol Options

The ISU 128 is configured for multilink PPP from the protocol options of the configuration menu by selecting 2=Multilink PPP or by setting S-register S27 to a value of 1. In this mode, the ISU 128 dials a second number to establish a second point-to-point link. Once the second link is established, multilink PPP is performed over both B-channels.

The phone number for the second call should be placed in stored number 1 (SN1). If no number is stored in SN1, the same phone number is dialed to es- tablish the second link.

PPP with Compression

The ISU 128 is configured for PPP with compression from the protocol options of the the configuration menu by selecting 3=PPP w/Comp or by setting S-reg- ister S27 to a value of 2.

When setup for PPP with compression, the ISU 128 will negotiate the compres- sion control protocol (CCP) with the network PPP peer. If STAC™ compres- sion is successfully negotiated with the peer, data packets from the DTE are compressed before being sent out through the network. Likewise, compressed packets from the network are decompressed before being transmitted through the DTE.

61202.029L2-1

ISU 128 User Manual

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ADTRAN ISU 128 user manual PPP with Compression

ISU 128 specifications

The ADTRAN ISU 128 is a versatile and robust integrated service unit designed for network access solutions, particularly within telecommunications and enterprise environments. This unit plays a critical role in enabling high-speed data transmission, supporting various voice, video, and data services over traditional and next-generation networks.

One of the noteworthy features of the ADTRAN ISU 128 is its ability to aggregate multiple digital circuits into a single access point. It supports T1, E1, and fractional T1/E1 interfaces, making it a flexible choice for customers with different bandwidth needs. The unit allows for seamless migration from legacy systems to modern broadband services, ensuring that businesses can scale their operations without significant infrastructure changes.

The ADTRAN ISU 128 also excels in its support for various protocols, including Frame Relay and ATM, providing the necessary flexibility to adapt to different network architectures. This adaptability is essential for businesses that rely on diverse communication platforms to maintain connectivity and operational efficiency.

Another significant aspect of the ISU 128 is its built-in features for diagnostics and monitoring. The unit includes comprehensive loopback and performance monitoring capabilities, which enable network administrators to troubleshoot potential issues proactively. This functionality ensures a reliable connection and minimizes downtime, which is critical for maintaining service-level agreements (SLAs).

In terms of user interface, the ADTRAN ISU 128 is designed with ease of use in mind. The unit can be configured and managed through a web-based graphical user interface, allowing for straightforward remote access to settings and performance metrics. This capability facilitates quick adjustments and upgrades, helping to streamline network management tasks.

The ISU 128 is also built with a strong emphasis on reliability and durability. It is housed in a compact, rack-mountable design, making it suitable for various deployment environments. These characteristics, combined with support for redundant power supplies, enhance the unit's reliability in critical operations.

Overall, the ADTRAN ISU 128 stands out as a powerful solution for organizations seeking to optimize their network access. With its advanced features, compatibility with multiple technologies, and emphasis on reliability, the ISU 128 is an ideal choice for those looking to enhance their communication infrastructure in a rapidly evolving digital landscape.