Bridging

SQE Test

Displays the number of times that the SQE Test Error message is generated by the PLS sublayer on the selected interface.

The SQE (Signal Quality Error) Test tests the collision detect circuitry after each transmission. If the SQE Test fails, a SQE Test Error is sent to the interface to indicate that the collision detect circuitry is malfunctioning.

Carrier Sense

Displays the number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame on a particular interface.

Carrier sense describes the action an interface desiring to transmit will take to listen to the communication channel to see if any other interface is transmitting. If a Òcarrier is sensed,Ó the sensing interface will wait a random length of time, and then attempt to transmit.

Frame Too Long

Displays the amount of frames received on this interface that exceed the maximum permitted frame size.

Internal MAC

The number of frames that failed to be received by the interface due to an internal MAC sublayer receive error. These errors are only counted if a Frame Too Long, Alignment, or FCS Error did not occur along with the internal MAC error.

Receive Errors

Displays the total number of receive errors of all types that were detected by the selected interface while it was receiving a transmission.

Transmission Errors

Deferred

Displays the number of frames for which the Þrst transmission attempt on this interface is delayed because the medium is busy.

Internal MAC

The number of frames for which transmission fails due to an internal MAC sublayer transmit error. This error is only counted in this window if there have not been corresponding Late Collisions, Excessive Collisions, or Carrier Sense Errors.

Transmit Errors

The total of transmission errors of all types that occurred while the selected interface was attempting to transmit frames.

Bridge Statistics

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Cabletron Systems CSX200, CSX400 manual Transmission Errors

CSX200, CSX400 specifications

Cabletron Systems was a leading developer of networking solutions, and its CSX400 and CSX200 series of high-performance switches represent some of the key innovations in the field of enterprise networking during their time. Both models were geared towards enhancing network reliability, efficiency, and speed, particularly in environments where heavy data traffic and complex networking demands were prevalent.

The CSX400, designed for larger enterprises, boasts a robust architecture capable of handling significant throughput. One of its standout features is its stackable design, allowing multiple switches to be interconnected and managed seamlessly as a single unit. This scalability provides organizations with the flexibility to expand their networks without significant infrastructure overhauls. The CSX400 supports various Ethernet standards, including 10/100 Ethernet and Gigabit Ethernet, positioning it to effectively manage both legacy and modern networking requirements.

In addition to its scalability, the CSX400 is distinguished by its advanced Layer 2 and Layer 3 routing capabilities. This dual-layer functionality enables efficient data handling and is instrumental in managing traffic between different network segments. Moreover, the switch incorporates features like VLAN (Virtual Local Area Network) support and Quality of Service (QoS) prioritization, allowing for enhanced performance of critical applications and streamlined bandwidth allocation.

On the other hand, the CSX200 series is tailored for smaller enterprises or branch offices needing a reliable yet efficient networking solution. Despite its compact design, the CSX200 is equipped with essential features that promote effective network management and security. It offers a simplified management interface, making it user-friendly for network administrators. The switch also provides essential access control measures, employing technologies like IEEE 802.1X for network access security.

Both the CSX400 and CSX200 prioritize performance through the incorporation of advanced switching technologies. They support features such as Spanning Tree Protocol (STP), enabling loop-free topologies and enhanced network resilience. These attributes are particularly crucial in dynamic networking environments where downtime can have significant repercussions on business operations.

Overall, Cabletron Systems' CSX400 and CSX200 series represent a blend of scalability, advanced routing capabilities, and user-friendly management, making them vital assets for organizations looking to optimize their network infrastructure during a period of rapid technological evolution. With their rich feature sets and unwavering performance, these switches helped pave the way for modern networking solutions that cater to diverse enterprise needs.