Bridging

Aging Time

Indicates the length of time, in seconds, that Dynamic and Learned Addresses in the Source Address Table are allowed to remain inactive before they are dropped from the database. The allowable time range for these entries is 10 to 1,000,000 seconds. Aging time is not applicable to Static or Permanent entries. You can conÞgure this Þeld, as described in the next section.

The following Þelds are applicable to the scrollable Address Entry panel of

Filtering Database entries.

Address

Lists the addresses for which the bridgeÕs Filtering Database has forwarding and/or Þltering information.

Type

Indicates the type of an entry in the database. The possible types are Static, Dynamic, Learned, Self, or Permanent. You can alter the entry type, as described in the next section.

Source Port

Indicates the port number on which the address entry was Þrst detected. A question mark (?) indicates that the address entry was not a learned entry, but Port Filtering information applies to it (i.e., the entry is a created Permanent, Dynamic, or Static entry and has corresponding Þltering information).

Receive Port

Indicates the number of the port on which a frame must be received in order for the entryÕs Port Filtering information to apply. An asterisk (*) indicates that the receive port is promiscuous, and applies to all ports of the bridge (assuming no conßicting entry applies). You can change the receive port, as described in the following section.

Port Filtering

Indicates the action that will take place at each bridge port when it receives frames from the selected address entry. A green arrow indicates that the frames received from the address will be forwarded to the portÕs associated segment

(). A red circle indicates that frames will be Þltered (blocked) from the portÕs associated segment ( ). You can change the Port Filtering action, as described in the next section. (Note that port Þltering is scrollable among all the potential ports; however, only two consecutive ports can be viewed simultaneously.)

Configuring the Filtering Database

You can conÞgure the Filtering Database by:

¥Altering the Aging Time for Dynamic and Learned entries.

¥Changing the type of entry with the Type buttons.

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Filtering Database

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Cabletron Systems CSX400, CSX200 Configuring the Filtering Database, Aging Time, Source Port, Receive Port, Port Filtering
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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.
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