6-46 User’s Reference Guide

The following screen shows a sample syslog dump of WAN events:

6, 152, 173.166.107.100, 3/10/99, 9:55:03 AM,

RFC1483: IP up, channel 2, gateway: 163.176.107.1

6, 152, 173.166.107.100, 3/10/99, 9:55:08 AM,

RFC1483-2 rate set to 576 Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:09 AM,

DML-4

up

6, 152, 173.166.107.100, 3/10/99, 9:55:10 AM,

RFC1483-2 rate set to 432 Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:10 AM,

RFC1483-2 rate set to 432 Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:13 AM,

DML-3

up

6, 152, 173.166.107.100, 3/10/99, 9:55:13 AM,

DML-1

up

6, 152, 173.166.107.100, 3/10/99, 9:55:13 AM,

DML-2

up

6, 152, 173.166.107.100, 3/10/99, 9:55:14 AM, >>WAN: Data link activated at 144 Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:14 AM, >>WAN: Data

link

activated at

144 Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:14 AM, >>WAN: Data

link

activated at

144

Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:15 AM,

RFC1483-2

rate set to 144 Kbps

 

6, 152, 173.166.107.100, 3/10/99, 9:55:17 AM,

RFC1483: Channel 2 up

 

 

6, 152, 173.166.107.100, 3/10/99, 9:55:20 AM, >>WAN: Data link activated at

144

Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:23 AM, BRIDGE: Line is up in ATM-Funi mode

6, 152, 173.166.107.100, 3/10/99, 9:55:24 AM, --Device restarted----------------------------

6, 152, 173.166.107.100, 3/10/99, 9:55:36 AM, >>WAN: IDSL 1 activated at 1568 Kbps

6, 152, 173.166.107.100, 3/10/99, 9:55:37 AM, BRIDGE: Line is up in ATM-Funi mode

DSL Bonding (iMux)

DSL Bonding, also called inverse multiplexing or IMUX, technology combines the bandwidth of multiple DSL (Digital Subscriber Line) circuits into a single virtual data pipe.

Before DSL Bonding was developed, the maximum speed of a DSL connection was dependent on the customer's distance from the central office. DSL Bonding allows customers who are located at greater distances from the central office to aggregate DSL circuits, in order to achieve two or more times the speed otherwise available to them with a single line.

The premise behind DSL Bonding is to provide a cost-effective means of bridging the bandwidth gap between relatively low network speeds and much higher rates, thereby allowing high-speed applications to use bandwidth up to 3 Mbps.

Netopia's DSL routers and DSUs with bonding allow users with 1.5 Mbps SDSL connections to enjoy speeds of over 3 Mbps, twice as fast as T1. They also allow customers who, because of line quality problems, were previously limited to a 144 Kbps IDSL connection, to enjoy speeds of up to 576 Kbps.

What DSL Bonding does

DSL Bonding is the opposite, or inverse, of traditional multiplexing:

The concept of multiplexing applies when a number of relatively small data streams are combined into a single line with greater bandwidth, in order to increase the efficiency and maximize utilization of a higher speed WAN connection. An example of multiplexing would be the combination of multiple DS0 links in a single T1 or E1 circuit.

DSL Bonding takes a single high-speed data stream and spreads it across several lower speed physical links, which logically form a single aggregated channel or group. Multiple SDSL or IDSL lines are combined to create a single logical data channel that is the aggregate of the individual lines’ bandwidths, minus a small amount used for overhead. A packet of information from a LAN, video conferencing session, or other data application is broken down into individual bits or cells which are transmitted in a round robin fashion across two SDSL or IDSL circuits. At the other end of the link, the bits or cells are reassembled in the

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Netopia D3100-I IDSL, D7171 SDSL, D7100 SDSL DSL Bonding iMux, Following screen shows a sample syslog dump of WAN events

D7100 SDSL, D3232 IDSL, D3100-I IDSL, D7171 SDSL specifications

Netopia offers a range of advanced digital subscriber line (DSL) modems that cater to various connectivity needs. Among these, the D7171 SDSL, D3100-I IDSL, D3232 IDSL, and D7100 SDSL models stand out for their robust features and technologies designed to enhance the user experience.

The Netopia D7171 SDSL modem is engineered for symmetrical digital subscriber line (SDSL) services, delivering equal upload and download speeds. It supports high-speed data transfers over standard copper lines, enabling businesses to maintain consistent performance for applications such as video conferencing and large file transfers. Key features of the D7171 include enhanced security protocols, a built-in firewall to protect against unauthorized access, and multiple interface options for flexible connectivity.

Moving to the D3100-I IDSL, this model caters to users who require a reliable internet connection over a longer distance than traditional DSL can provide. The IDSL technology enables it to function effectively in areas where standard DSL is unavailable or unreliable. It provides a lower bandwidth solution yet is valuable in reaching remote locations. This modem is particularly recognized for its ease of installation and robust performance, featuring built-in diagnostics that help troubleshoot potential connection issues.

In the same family, the D3232 IDSL offers similar advantages but with a focus on higher capacity and scalability. It is designed for small to medium enterprises that require greater bandwidth for multiple users or devices. This modem also supports both voice and data transmission, making it an attractive option for unified communications. The D3232 comes equipped with advanced networking features, including Quality of Service (QoS) capabilities to prioritize bandwidth for critical applications.

Lastly, the D7100 SDSL modem is distinguished by its versatility and high-performance output. Supporting SDSL standards, it is perfect for businesses that need reliable, symmetrical speeds. This model is characterized by its extensive range of connectivity options, including Ethernet ports and support for various network protocols, ensuring seamless integration into existing network infrastructures. Additionally, it boasts excellent reliability, making it a favored choice for mission-critical applications.

In summary, Netopia's DSL modems, including the D7171 SDSL, D3100-I IDSL, D3232 IDSL, and D7100 SDSL, provide scalable and reliable internet connectivity solutions tailored to meet diverse business needs. With cutting-edge technology and a suite of features designed for performance, these models are well-suited to enhance productivity and support modern communications.