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Command Sets for Command Line Interface

6.<channel> echo every

Syntax:

<channel> echo every <seconds>

Description:

Echo is an LCP packet, which is used to test an established PPP link. It solicits a ping-like reply from the far end. This command sets a channel to confirm the continued presence of an open PPP connection by sending an LCP echo every few seconds, and requiring an echo reply. The number of seconds between echo requests is specified as a parameter. If 0 is specified, the function is disabled. Use the info all command to read the current state on a channel. Configuration saving saves this information. By default the function is disabled.

7.<channel> enable

Syntax:

<channel> enable

Description:

Set the enable flag for a PPP channel. By default this is disabled.

In the PPP state machine, this flag sets the PPP link to ‘open’. If it is already open, there is no effect.

Configuration saving saves this information. By default all channels are disabled.

8.<channel> hdlc

Syntax:

<channel> hdlc [10]

Description:

If 1, use an HDLC header on the front of transmitted packets and require one on received ones. This consists of two bytes, FF-03, and assists in interoperability with some other (non-standard) implementations. If 0, disable this. Call with no argument to find the current setting.

The default value is 0 (disabled). Configuration saving saves this information.

If not set, and a packet is received with an HDLC header, the channel goes into a ‘learned HDLC’ mode and sends packets with the HDLC header. Thus, interoperation with HDLC-using equipment should not normally require any configuration. Learning occurs in this direction only. Setting hdlc to 0 clears this learned state.

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IBM Heritage user manual Channel echo every

Heritage specifications

IBM, or International Business Machines Corporation, is a global leader in technology and consulting, with a heritage that spans over a century. Established in 1911, IBM initially emerged from a merger of four companies, and it has since evolved into one of the most influential players in the tech industry.

One of the main features of IBM’s legacy is its commitment to innovation. The company has a long history of technological breakthroughs, including the development of the first programmable computer, the IBM 701, in the early 1950s. IBM has also been at the forefront of many pivotal technologies, including mainframe computers, which became central to large-scale enterprise computing. The System/360, introduced in 1964, revolutionized the industry by offering a compatible range of computers that could run the same software, a concept that helped define the standardization of computer systems.

IBM’s contributions to artificial intelligence, particularly through its Watson platform, are another hallmark of its heritage. Watson gained international fame for its success on the quiz show Jeopardy! in 2011, showcasing advanced natural language processing capabilities and machine learning techniques. This technology has since found applications in various fields, from healthcare to finance, significantly transforming data analysis.

Another key characteristic of IBM is its focus on research and development. With an impressive portfolio of patents, IBM consistently ranks among the top patent holders annually. Their research endeavors have led to significant advancements in quantum computing, with initiatives like the IBM Quantum Experience making quantum technologies accessible to developers and researchers.

Sustainability is also a priority for IBM, with programs aimed at promoting environmental responsibility. The company has committed to achieving net-zero greenhouse gas emissions by 2030, reflecting the growing importance of sustainability in technology practices.

In summary, IBM's heritage is characterized by a strong legacy of innovation, technological leadership, and a commitment to addressing contemporary challenges in business and society. From pioneering mainframe systems to leading the charge in AI and quantum computing, IBM continues to shape the future of technology while maintaining a visionary outlook towards a sustainable and inclusive digital world.