Cabletron Systems 2000 manual Ingress List Operation, Egress List Operation

Models: 2000

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The SmartSwitch 2000 Chassis View

NOTE

NOTE

When 802.1Q mode is initially activated on a device, all ports are associated with the Default VLAN (VLAN ID 1). If a VLAN ID has not been assigned to a particular port on an 802.1Q switch, any frames received from that port will be classiÞed as belonging to the Default VLAN.

When 802.1Q is implemented for a SmartSwitch 2000 that has an HSIM-A6DP installed, each LEC will be represented as an individual port which can be easily assigned membership in a VLAN.

For SmartSwitch 2000 Þrmware version 4.00.08 and above, the number of LECs supported by the HSIM-A6DP in 802.1Q mode is limited to 32.

Once VLANs have been conÞgured and activated, all frames with unknown destination addresses (including broadcast, unknown multicast, and unknown unicast frames) will be contained within the VLAN of their origin. The switchÕs Filtering Database tracks the associations between MAC addresses, VLAN eligibilities, and port numbers, and is used to make forwarding decisions for frames. All VLANs share a single Spanning Tree.

Ingress List Operation

A portÕs ingress list speciÞes the VLAN with which received frames will be associated. The switchÕs Filtering Database tracks the associations between VLAN eligibilities, MAC addresses, and port numbers.

Untagged frames received by an 802.1Q switch port are classiÞed according to the VLAN membership of the port that receives the frame.

Tagged frames received by an 802.1Q switch port are classiÞed according to the VLAN indicated in their tag header. A port may receive a tagged frame that speciÞes a VLAN other than the one assigned to the port.

Egress List Operation

Each portÕs egress list speciÞes which VLANs are associated with the port, and speciÞes what type of frame (tagged or untagged) to transmit for each particular VLAN on a port. This information may be statically deÞned by the user, or dynamically learned and maintained by the switchÕs Filtering Database.

If a port receives a tagged frame that speciÞes a VLAN other than the one assigned to the port, the switch will dynamically associate that frameÕs source address and VLAN with the port (i.e., add that frameÕs VLAN to the receiving

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Managing the Hub

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Cabletron Systems 2000 manual Ingress List Operation, Egress List Operation

2000 specifications

Cabletron Systems was a prominent company in the networking and communications industry during the late 20th century, and by the year 2000, it had established itself as a leader in providing high-performance networking solutions. The company was known for its innovative approach to network architecture and its commitment to delivering reliable products that enabled seamless connectivity in various environments.

One of the primary features of Cabletron Systems in 2000 was its advanced networking technologies, including Local Area Network (LAN) and Wide Area Network (WAN) solutions. The company specialized in developing multi-layer switches that could efficiently manage traffic and deliver high-speed data transfer. Their products were particularly popular in enterprise settings, where network performance and reliability were paramount.

Cabletron's solutions included a range of products, from Ethernet switches to routers, which were designed with scalability and flexibility in mind. This allowed businesses to adapt their networks to accommodate growth, without the need for a complete overhaul of their infrastructure. The company’s Integrated Networking Architecture (INA) was a significant innovation during this period, enabling efficient communication and management of diverse network resources.

Another major characteristic of Cabletron Systems was its commitment to interoperability. The company’s products were designed to be compatible with several industry standards, ensuring that organizations could easily integrate Cabletron solutions into their existing networks. This focus on compatibility helped to foster collaboration among different devices and systems, further enhancing network efficiency.

Security was also a key feature of Cabletron’s offerings in 2000. With growing concerns about data breaches and unauthorized access, the company incorporated advanced security measures into its products. These features included robust authentication protocols, encryption options, and secure management interfaces, which helped safeguard sensitive data during transmission.

Customer support and service were paramount to Cabletron Systems' business model. The company provided extensive resources, including training and technical support, to ensure that customers could maximize the potential of their networking solutions. This dedication to customer satisfaction contributed significantly to Cabletron’s reputation in the marketplace.

In summary, Cabletron Systems in 2000 emerged as a frontrunner in the networking industry, characterized by its innovative technologies, commitment to interoperability, emphasis on security, and strong customer support. Their products and solutions were designed to empower businesses, helping them achieve greater efficiency, scalability, and reliability in their network operations.