BECN, and DE bits will be displayed separately, then the remainder of each frame will be displayed as data.

EAllows specification of the length of frame relay data to display.

FStops the display from scrolling, or restarts if stopped.

HToggles the data format between ASCII and hexadecimal.

LMonitors a specific LCN or DLCI. If packets are being exchanged, the display will scroll them. To return to monitoring all LCNs/DLCIs, select L and enter 0 when prompted for an LCN/DLCI.

MMonitors a different line; when prompted, enter the RLP and port numbers.

PAllows tracing a selected SDLC polling address when you are performing level-2 tracing of an SDLC port. Selecting P will display the message:

SDLC Station Address to filter (FF=All).

QEnables/disables display of X.25 QData packets.

REnables/disables display of X.25 Restart/Reset packets on an X.25 port, or LMI DLCI information on a frame relay port. (Only the sequence numbers will be displayed for Link Integrity Verification messages on a frame relay port.)

SUpdates and redisplays the "Display Selection is:....." message (shown above).

TEnables/disables timestamps (hours:minutes:seconds:milliseconds) and lengths of packets.

WEnables/disables interpretation of classified frames (LLC2 and LAPB).

YEnables/disables classification of RFC1490 frames by PID.

2Enables display of all LAPB, SDLC, and BSC level-2 frames (if appropriate to the port). (Note that you cannot monitor level-2 X.25 logical ports with this

option—use option 3 instead.)

3Changes LAPB, SDLC, and BSC display (see 2 above) back to level 3 (i.e., LAPB to X.25, SDLC to QLLC, BSCI to DSP, BSCB to DQ).

[F3] Exits Line Monitor mode.

Pending display of Data packets, the line monitor stores them in a buffer. If the display cannot keep up with the line's data traffic, the buffer will overflow, and some packets will not be displayed. When this occurs, the message Line Monitor Buffer is Full appears. Buffer overflow does not impair data integrity or interfere with traffic.

To exit the Line Monitor, press [F] to stop the display from scrolling (assuming it is scrolling), then [F3]. (Stopping the scrolling first is not always necessary, but allows quicker access to the software when [F3] is pressed, especially from an async ter- minal.)

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Cabletron Systems 1800 manual Sdlc Station Address to filter FF=All

1800 specifications

Cabletron Systems, a leading player in network management and telecommunications solutions during the late 20th century, introduced several innovative products that played a crucial role in shaping enterprise networking. Among these were the Cabletron FRX6000, FRX4000, and the FRX1800, which delivered advanced features aimed at enhancing network performance, security, and scalability.

The Cabletron FRX6000 was designed as a robust multi-layer switch, ideal for large-scale enterprise environments. It supported extensive routing capabilities, allowing organizations to manage traffic efficiently even under heavy loads. The FRX6000 boasted high throughput rates and low latency, making it suitable for demanding applications. With support for various network protocols, including IP, IPX, and AppleTalk, its adaptability made it a versatile choice for diverse networking needs. Moreover, security features like VLAN support and Access Control Lists (ACLs) provided enhanced protection against potential threats.

Moving to the FRX4000, this model offered a balance between performance and cost-effectiveness. The FRX4000 maintained many of the essential features of its larger counterpart while catering to medium-sized enterprises. It provided Layer 3 routing and could handle multiple simultaneous connections, ensuring seamless communication across departments. The modular design allowed for easy upgrades, enabling businesses to expand their network infrastructure without significant overhauls. This made the FRX4000 an attractive option for organizations looking to optimize their network investments.

Lastly, the FRX1800, designed for small to medium businesses, focused on simplicity and ease of use while still incorporating powerful network management capabilities. Its user-friendly interface made it accessible for organizations lacking extensive IT resources. The FRX1800 provided essential functionalities such as Integrated Layer 2 switching and routing, network monitoring, and basic security features, ensuring that even smaller companies could maintain efficient, reliable networking without overwhelming complexity.

All three models utilized advanced technologies, including a high bandwidth backbone and state-of-the-art switching architecture, to enable fast and reliable data transfer. They also supported Quality of Service (QoS) mechanisms, allowing businesses to prioritize critical applications and ensure consistent performance across the network.

In summary, the Cabletron FRX6000, FRX4000, and FRX1800 were pivotal in enhancing network capabilities, providing organizations with scalable, secure, and high-performance options tailored to their specific needs.