Session Type = Terminated and the same Local Subscriber ID and Remote Subscriber ID

as specified here in the NetView parameters.

Remote Subscriber ID

is a subscriber address for the remote end of an LLC2 session established for a NetView connection. An LLC2 Host record (described on page 9-18) must be created, with Session Type = Originated, Local Subscriber ID = the Remote Subscriber ID spec- ified here in the NetView parameters, and Remote Subscriber ID = the Local Subscriber ID specified in the NetView parameters.

Maximum Bytes per Frame

must correspond to the PIU size configured on the NetView host (parameter MAXDATA of macro PU in VTAM).

Local SAP Address

is a service access point (SAP) address used to identify the SmartSwitch to a NetView host. This parameter is relevant only in a connection to a 3174 or AS/400-type setup where a specific source SAP address is required. If the session will be run over a native LLC2 frame relay interface, the parameter will be ignored.

Local MAC Address

identifies the local SmartSwitch to a NetView host. Like the local SAP address, this parameter is relevant only in a connection to a 3174 or AS/400-type setup where a spe- cific source MAC address is required. If the session will be run over a native LLC2 frame relay interface, the parameter will be ignored.

IDBLK

is used in conjunction with IDNUM in generating the Node field in an XID frame (format 0 or 3) to establish a link station connection to the host. A further explanation is provided under "IDNUM."

IDNUM

is used in conjuction with IDBLK in generating the Node field in an XID frame (format 0 or 3) to establish a link station connection to the host . If 0 is specified for both IDBLK and IDNUM, the Node field of the XID will be provided by the attached device. (The node will send an XID command to the remote node to indicate that the device should be polled for an XID.)

T1

is the Reply Timer, which is used to detect the failure to receive a required acknowl- edgment or response from the remote link station. The link station will start the timer when it transmits one of these:

●an Information LPDU (LLC protocol data unit).

●a Command LPDU with the P bit set to B'1.' (If this LPDU is sent while the timer is already running, the link station will reset and restart it.)

The link station will reset T1 when it receives one of these:

●A REJ (Reject) LPDU, provided a Command LPDU with P bit set to B'1' is not outstanding.

●A Response LPDU with the F bit set to B '1.'

Configuring Node Defaults

4-7

Page 56 Page 58
Page 57
Image 57
Cabletron Systems 1800 manual As specified here in the NetView parameters
Page 56 Page 58

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.
Top Page Image Contents