Frame Relay Ports

The following figure shows an example of a frame relay port display:

16:23:58:00 R 0016 D (0008) 0308518167800131 16:23:59:10 R 0016 D (0008) 0308518167800331 16:24:02:00 R 0016 D (0008) 0308518167800331 16:24:02:20 R 0016 D (0008) 0308518167800131

0000 LIV S tatus Enqu iry 135/134

0000 LI V S tatus 135/135

16:24:18:00 R 0016 F (0008) 0308518167800131 16:24:18:30 R 0016 D (0008) 0308518167800131 16:24:18:40 R 0016 D (0008) 0308518167800331 16:23:58:00 R 0016 F (0008) 0308518167800131 16:23:58:00 R 0016 F (0008) 0308518167800331 16:23:58:00 R 0016 B (0008) 0308518167800131 16:23:58:00 R 0016 B (0008) 0308518167800331 16:23:58:00 R 0016 B (0008) 0308518167800331 0000 Full Statu s En quiry 136/135

0000 Full Statu s 136/136

16:23:58:00 R 0016 B (0008) 0308518167800331 16:23:58:00 R 0016 B (0008) 0308518167800131 16:23:58:00 R 0016 F (0008) 0308518167800131 16:23:58:00 R 0016 F (0008) 0308518167800331 16:23:58:00 R 0016 B (0008) 0308518167800131

Figure 20-7 Frame Relay Line Monitor Display

[C],[E] from Main Menu

There are two types of frame: status and data. On each line of either type, the leftmost field shows the DLCI number.

The example in Figure 20-7shows status frames in ANSI T1.617 Annex D. format . This and LMI (Rev 1) format are described under "Status Exchanges" on page 20-12.

Status Exchanges

Each status exchange line contains (at the end) a pair of 3-digit numbers that are the next and current sequence numbers. The types of status exchange will be one of these:

●Full Status Enquiries, which are sent by the frame relay DTE (i.e., the Smart- Switch 1800).

●Full Status Responses, which help the DTE learn which DLCIs are available for sending/receiving data. The frame relay DCE (switch) should report a DLCI as active only when it has a path through the frame relay network. The status of a DLCI will be reported as N (new) or A (active). A DLCI is reported as new if this is the first time it is being reported to the DTE. A DLCI reported as active will (if not already done) transition the frame relay DLCI on the Virtual Con- nections Display ([C], [C] from the Main Menu) to Data_trans and the port Port Status Display ([C], [B] from the Main Menu) to Operational.

20-12

SmartSwitch 1800 4. 0 User Guide, Rev 01

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Cabletron Systems 1800 manual Frame Relay Ports, Frame Relay Line Monitor Display
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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.
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