Using the TSX-1620 Bridge View

Blocking

This port is not forwarding or receiving traffic (and

 

therefore no physical address information is added to the

 

Filtering Database) nor is it sending or receiving BPDUs.

 

A port will enter the blocking state for two reasons: if it

 

receives information that another bridge is the

 

designated bridge to the network segment to which this

 

port is attached, or immediately after it has been enabled

 

by management.

Listening

This state is entered from the blocking state when the

 

STA determines that this port should participate in frame

 

relay. The port is processing BPDUs, but is not yet

 

forwarding or receiving traffic or adding information to

 

the Filtering Database.

Learning

The port is processing BPDUs, but is not yet relaying

 

packets. The port is adding address information to the

 

Filtering Database.

Forwarding

A port enters this state from the Learning state. The port

 

is relaying frames and processing BPDUs. A port in this

 

state can enter the Disabled state by management.

Broken

If the port is malfunctioning, this value will display in

 

the State field.

On the TSX-1620, you can use this button to change the Bridge Port display between Source Routing and Transparent bridging frame information. The title bar at the top of the Bridge Port display area indicates the frame type described in the bridge ports.

This two-state button is active when you have bridge statistics displayed in the Bridge Port boxes (i.e., when Frames is selected); otherwise, it is grayed. When you click on Delta, the Forward field in the Bridge Port boxes displays the total number of frames forwarded by this bridge port to another port on the bridge during the last polling interval. When you click on Percentage, the Forward field in the Bridge Port boxes displays the percentage of all frames received by the port from its network segment that were also forwarded to another port on the bridge during the last polling interval.

The Detail View button lets you take a closer look at traffic between two bridge ports. The Detail View button is grayed unless you have two bridge ports selected. For complete instructions on how to use the Detail View, see the next section.

3-10

Accessing the Bridge Traffic View Window

Page 57 Page 59
Page 58
Image 58
Cabletron Systems TSX-1620 manual Blocking
Page 57 Page 59

TSX-1620 specifications

The Cabletron Systems TSX-1620 is a pioneering piece of network hardware that played a significant role in the evolution of networking technologies during the 1990s. This well-engineered device is primarily recognized as a multi-port Ethernet switch that was designed to provide high-speed, reliable connectivity for local area networks (LANs). As organizations increasingly demanded robust performance and enhanced network capabilities, the TSX-1620 emerged as a powerful solution to address these needs.

One of the key features of the TSX-1620 is its support for both 10Base-T and 100Base-T standards, catering to both standard Ethernet and Fast Ethernet connections. This versatility allowed businesses to easily transition from older Ethernet systems to newer, faster specifications without replacing their entire infrastructure. The switch could intelligently manage traffic between devices, minimizing collisions and ensuring that data packets were transmitted efficiently.

The architecture of the TSX-1620 includes support for various advanced technologies that enhance network performance. Its store-and-forward switching capability improves data integrity by checking packets for errors before forwarding them to their destination. This process reduces the risk of corrupted data affecting network performance, making it especially valuable for mission-critical applications.

Another notable feature is its robust security tools. The TSX-1620 incorporates VLAN (Virtual Local Area Network) support, enabling network administrators to segment traffic and improve security across different departments or user groups. This not only mitigates the risk associated with unauthorized access but also optimizes network traffic by confining broadcasts to designated VLANs.

Scalability is a prominent characteristic of the TSX-1620. With ports available for expansion, organizations could easily increase their network capacity as their needs grew. This feature promoted long-term investment in network infrastructure, allowing businesses to adapt quickly to changing demands without incurring substantial costs.

Reliability is paramount in networking equipment, and the TSX-1620 does not disappoint. Engineered with high-quality components, this switch was built to operate efficiently in a variety of environments while maintaining stable performance. Its design ensures a cooling mechanism that minimizes overheating, thereby prolonging its operational lifespan.

In summary, the Cabletron Systems TSX-1620 represents a significant advancement in network switch technology during its era. Its combination of speed, versatility, security features, and robust architecture made it a valuable asset for organizations seeking to enhance their networking capabilities and prepare for the future.
Top Page Image Contents