Cabletron Systems 9A426-01 appendix Modifying Fields and User Privileges

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9A426-01/9A426-02 Module Specific Information

Modifying Fields and User Privileges

To modify fields on these modules, you must have read-write or super-user privileges. If you have read-only privileges, you can view information; however, you cannot modify any fields.

Virtual Channels and Virtual Paths

Rather than addressing cells to a specific destination, as in a LAN, ATM addresses cells to Virtual Channels (VCs) and/or Virtual Paths (VPs). This addressing takes place in the header field of the ATM cell.

VCs and VPs are bi-directional (i.e., they transfer information in both directions on a single channel or path) and are “set up” between devices on the ATM network prior to transmission. Similar to WAN transmission, ATM technology provides the ability of sending several VCs together over a VP, and several VPs over an ATM link segment.

Permanent and Switched Virtual Channels

ATM networks use two different types of Virtual Channels:

•Permanent Virtual Channels (PVCs)

•Switched Virtual Channels (SVCs).

The difference between PVCs and SVCs exists in the channel setup.

PVCs are pre-configured by an administration function, and are usually established for long-term use. After setting up this channel, nothing else is required by the network to transfer information between the two established points. This type of virtual channelling is established through a local or remote management interface.

SVCs use a signaling and network switching procedure to set up dynamically. In other words, SVCs are established “on the fly,” as needed for a particular service, used to transmit on the short term, and then terminated.

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Contents SmartSwitch 9000 9A426-01/9A426-02 Local Management Appendix Page Local Management Screens IntroductionInterface Number Name Description Module InterfacesVirtual Channels and Virtual Paths Permanent and Switched Virtual ChannelsModifying Fields and User Privileges A426-01/9A426-02 FNB Resource Configuration Screen FNB Resource Configuration ScreenChanging the Current FNB Connection FNB Resource Configuration Screen FieldsA426-01/9A426-02 Connection Table Screen Connection Table ScreenConnection Table Screen Fields Displaying the Add/Delete Entry Screen 9A426-02 ADD/DELETE Entry Add/Delete Entry ScreenAdd/Delete Entry Screen Fields Deleting PVCs From the Connection Table Adding PVCs to the Connection TableA426-01/9A426-02 LEC Administration Screen LEC Administration ScreenLEC Administration Screen Fields Adding an Elan Modifying an Elan Deleting an Elan9A426-02 LEC Properties LEC Properties ScreenLEC Properties Screen Fields A426-01/9A426-02 SVC Signalling Screen SVC Signalling ScreenSVC Signalling Screen Fields A426-01/9A426-02 Diagnostics Screen Diagnostics ScreenEnabling and Disabling Extended Diagnostics Diagnostics Screen Field9A426-01/9A426-02 Module Specific Information

9A426-01 specifications

Cabletron Systems 9A426-01 is a robust networking component known for its reliability and performance in data transfer and communication systems. This multi-port Ethernet hub is part of Cabletron’s extensive range of networking solutions, which have been trusted across various industries since the company's inception in the 1980s.

One of the main features of the 9A426-01 is its capability to support multiple Ethernet connections. It typically comes equipped with 24 ports, allowing for extensive connectivity options which are critical for network expansion. The 10Base-T technology utilized in this device ensures that users can connect multiple Ethernet-compatible devices, maintaining a smooth data flow across the network.

Incorporating advanced switching technology, the Cabletron Systems 9A426-01 can significantly reduce network collisions. This is achieved through intelligent packet forwarding, which allows data to be sent only to the intended destination, thereby optimizing the overall network performance. The hub operates at the OSI Layer 2, enabling efficient data link layer access for all connected devices.

The design of the 9A426-01 prioritizes ease of management and maintenance. It often includes features like LED indicators for port status, facilitating quick troubleshooting. Moreover, the device is designed for rack mounting, saving valuable space in networking closets or server rooms.

Another notable characteristic of the Cabletron 9A426-01 is its compliance with industry standards, ensuring compatibility with other devices and systems. This adaptability makes it a versatile choice for organizations with diverse networking needs.

Furthermore, the Cabletron Systems 9A426-01 is built to withstand heavy-duty use, making it suitable for environments requiring high availability and resilience. It is engineered with durability in mind, often built from materials that can endure the rigors of constant operation.

In essence, the Cabletron Systems 9A426-01 represents a key component in the networking infrastructure. Its multi-port functionality, advanced switching capabilities, user-friendly design, and adherence to industry standards make it a formidable choice for businesses looking to enhance their network efficiency and reliability.
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