Backup Pend/Hold – (Primary DLCI only) A backup DLCI is attempting to be located. Received data will be queued on the primary DLCI's queue.

Backup Pend/Discard – (Primary DLCI only) A backup DLCI is attempting to be located. Received data will be discarded.

Displaying SDLC PU Status

To display the status of all PUs on an SNA port, press [C] at the Protocol Status Dis- plays Menu. When prompted, enter:

RLP: Press [Enter], accepting the dafault (and only valid value) of 0.

Port: 0–7for physical ports, 8–63for logical ports. Valid numbers for physical ports depend on the model of SmartSwitch 1800—see port locations on

page 6-1.

Node Name=nod e_xyz

SD LC PU Statu s D is play for R LP: 0

Port: 2

Station Add ress

Name

S tate

D1

Pu d1

N ever_A ctivated

D2

Pu d2

A ctive

Figure 20-10 SDLC PU Status Display

[C], [F],[C]from Main Menu

Information in this Display:

Station Address – (specified when configuring the SNA port) identifies the PU, and must match the ADDR parameter set in the macro PU in the VTAM config- uration. (The station address is usually set to C1 for point-to-point SDLC lines, and in series C1, C2, C3 , etc. for multidrop lines.)

Name – PU name configured in the PU parameters in the SNA Port record.

State – will be one of these:

Active

Inactive

Never_Activated

Pending_Contact – waiting for Normal Response Mode

20-20

SmartSwitch 1800 4. 0 User Guide, Rev 01

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Cabletron Systems 1800 manual Displaying Sdlc PU Status, Sdlc PU Status Display

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.

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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.