LLC2 Host Parameters

Table 9-4	LLC2 Host Parameters

Parameter	Valid Values	Default Value


Host MAC Addr ess	valid MAC address 1	400000000001
Session Type	Originated/Terminated 2	Terminated
T1 (100 msec)	1–250	10

T2 (msec)	100–5000 3	100

Ti (sec)	1–50	30

N3	1–127	3

Tw	1–127	7

N2	0–255	8

Priority	0–9	0

Bandwidth Allocation Group	1–16	1

Routing Subscriber ID	up to 15 digits 4	none
Source MAC Address Mask	up to 8 hex digits 5	40000000
On-Line Temporary Changes	Y/N	Y

Connections Parameters

Sq	1–16	1

HSAP	04–fehex, in multiples of 4	04

Type 6	LLC2 7	LLC2
Local Subscriber ID	up to 15 digits 8	none
Remote Subscriber ID	up to 15 digits 8	none
IDBLK	000–fff	000

IDNUM	00000–fffff	00000

Maxdata	265, 521, 1033, 1289, 1545,
	2057 9	65
MaxIn	1–127 9	1

1Except ffffffffffff. Must be in 802.5 (Token Ring) format, which may require "bit swapping" when entering the address. (See the explanation of Host MAC Addr ess.)

2A host address can be configured for one Originated and one Terminated session, but no more than one each.

3Must be less than the value for T1 to ensure that the remote link station will receive the delayed acknowledgment before T1 expires.

4An asterisk wildcard can be used as a final digit. (The ? wildcard is not valid.) If fewer than 15 digits are entered, an asterisk must be the final character.

51st digit must be 4, 5, 6, or 7, and an asterisk wildcard can be used as a final digit. If fewer than 8 actual digits (not including an asterisk) are specified, zeros will be added to total 8 actual digits. This value must not conflict with the Locally Administered MAC Address, described on page 6-5.

6Displayed only if Session Type is Terminated.

7Although selecting this item toggles between SNA and LLC2, Typemust be LLC2.

8Each Local Subscriber ID must begin with all of the actual Routing Subscriber ID. A Local or Remote Subscriber ID can contain an asterisk as the final digit; if so, the asterisk will not be a "universal" wildcard, but instead will include the range 000–511 ,

or 00–99if 13 digits precede the wildcard, or 0–9if 14 digits precede the wildcard.

9Maxdata will be overridden by Maxdata in the SNA PU parameters, and Maxin will be overridden by Tw in the LLC2 parameters.

Configuring SNA

9-21

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.

Cabletron Systems 1800 manual LLC2 Host Parameters

Models: 1800