Table 9-2 SNA Port PU Parameters

Parameter

Valid Values

Default Value

 

 

 

 

 

 

PU Name

up to 10 characters

none

 

 

 

Local Subscriber ID

0–15 characters

none

 

 

 

Remote Subscriber ID

0–15 characters

none

 

 

 

Maxdata (Max I-Frm bytes/frame)

25–4105

265

 

 

 

Autocall

Y/N 1

N

Autocall Retry Time (sec)

15–255

60

 

 

 

Autocall Retry Count

0–255

0 (indefinite)

 

 

 

Istatus

Active, Inactive

Active

 

 

 

LPDA Resource ID

0–255

0

 

 

 

LLC2 Connection

Y/N 2

N

L2DatMode

Two-way Alternate,

 

 

Two-way Simultaneous

Two-way Alternate

 

 

 

LLC2 Parameters

 

 

 

 

 

Local SAP Address

0–fc(hex) 3

04

Local MAC Address

0–ffffffffffff 4

000000000000

IDBLK

0–fff

000

 

 

 

IDNUM

0–fffff

00000

 

 

 

T1 (100 msec) 5

0–250

10

T2 (msec) 5

100–5000 6

100

Ti (sec) 5

1–50

30

N3 5

1–127

1

Tw 5

1–127

1

N2 5

0–255

8

Priority 5

0–9

0

Bandwidth Allocation Group 5

0–16

0

Suppr ess XIDs

Y/N

N

 

 

 

1Set Autocall to Y for TPADs and N for HPADs.

2If the PU will be used for SDLC-LLC2 conversion (at the local node, or at a remote node via a logical or physical X. 25 port), this must be Y.

3In multiples of 4.

4In Token Ring format.

5Will override the value configured for the same parameter in the Node Defaults file, with two exceptions—if 0 is configured in Port Configuration for Priority or Bandwidth Allo- cation Group, the value in Node Defaults will apply.

6Must be less than the value for T1 to ensure that the remote link station will receive the delayed acknowledgment before T1 expires.

Port Type

specifies the protocol the port will support. Selecting this parameter will display a list of all serial protocols loaded in the device.

Name

is used to identify the port to some manager devices.

Configuring SNA

9-7

Page 132 Page 134
Page 133
Image 133
Cabletron Systems 1800 manual SNA Port PU Parameters, Indefinite
Page 132 Page 134

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