Hex. Dec. Description

74116 International link busy

75117 Transit network facility problem

76118 Remote network facility problem

77119 International routing problem

78120 Temporary routing problem

79121 Unknown called DNIC

7A

122

Maintenance action

F1

241

Normal ISO IP/X.25 disconnect

SNA Codes

Hex. Dec. Description

5080 General protocol error

5181 Invalid command

5282 Unexpected command

56

86

PDU reject

57

87

Invalid header

58

88

Invalid data

74116 Invalid frame

75117 Oversized frame

76118 Sequence error

78120 Frame reject

79121 Invalid response

7C

124

Inactivity timer expired

7D

125

Unexpected command

 

128

 

98152 Link down

Cabletron-Specific Codes

Hex. Dec. Description

80128 Invalid user data (version mismatch)

81129 Call cleared because of call looping, or Local or remote subscriber not defined

82130 Call cleared because port is quiesced, or MAC/SAP combo in use

83131 Out of memory for control block

84132 Out of resources, no more control block available

85133 Out of resources, cannot generate SMAC/SSAP entry

86134 Out of resources, cannot get free idblknum

87135 Hash entry for connection already exists

77136 Out of resources, no memory for hash entry

89137 Out of resources, no more concatanations available

8a

138

dlger, logic error

8B

139

MAC Driver Deleted

8C

140

Received DISCONNECT

8D

141

Received FRMR

8E

142

Due to configuration change

8F

143

Received DISCONNECT

90144 No code, cleanup problem

91145 Timer Ti expired

92146 Timer T1 expired

B-4

SmartSwitch 1800 4. 0 User Guide, Rev 01

Page 389 Page 391
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Cabletron Systems 1800 manual SNA Codes, Cabletron-Specific Codes
Page 389 Page 391

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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