Descriptions of Parameters Common to all Interface Types

Maximum Transmission Unit

is the maximum size (in bytes) of the data field that can be used to encapsulate an IP datagram for transmission over the interface. Any datagrams larger than the Maximum Transmission Unit will be fragmented, resulting in additional processing on any inter- mediate routers or gateways, as well as the destination host. If the Maximum Trans- mission Unit value is less than the size of a minimal IP datagram, the value will automatically change to the minimal datagram size.

Routing Metric Count

is the number of network "hops" (network gateways in the overall path over the internet) associated with this interface (usually zero). During routing, the interface with the lowest count will be selected.

ICMP Redirects

specifies whether IP may add routes obtained by ICMP (Internet Control Message Protocol), whose error and control function is used to send re-direction options back to the source if problems are discovered.

RIP Support

specifies the level of RIP support on the interface:

0

Enabled

All RIP messages will be accepted, and RIP messages of the

 

 

version configured in IP Node Defaults ([A], [A], [E], [A] from

 

 

the Main Menu—see page 14-3)will be transmitted

 

 

(assuming RIP updates have been configured).

1

Receive Only

RIP messages will be accepted, but not transmitted.

2

Disabled

No RIP messages will be accepted or transmitted.

RIP Flash Updates

is the frequency with which RIP messages will be sent to every neighbor node, con- taining any changes to the routing table that occurred since the last full update (see next entry).

RIP Full Updates

is the frequency with which updates of the entire routing table will be sent to every neighbor node, via one or more RIP messages.

Priority

prioritizes this interface for intra-nodal traffic; the higher the number, the higher the priority. (This priority has no effect on traffic exiting a node.)

Priorities are configured on all logical interfaces that use a physical frame relay port. The device processor in the node uses these priorities to help determine the order in which it will process protocols.

When configuring priorities, be careful to consider the types of traffic being routed on other connections in the node.

Bandwidth Allocation Group

assigns the IP interface to one of sixteen groups whose parameters regulate bandwidth usage. See "Configuring Bandwidth Allocation Groups" on page 7-6.

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Cabletron Systems 1800 manual Descriptions of Parameters Common to all Interface Types
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1800 specifications

Cabletron Systems, a leading player in network management and telecommunications solutions during the late 20th century, introduced several innovative products that played a crucial role in shaping enterprise networking. Among these were the Cabletron FRX6000, FRX4000, and the FRX1800, which delivered advanced features aimed at enhancing network performance, security, and scalability.

The Cabletron FRX6000 was designed as a robust multi-layer switch, ideal for large-scale enterprise environments. It supported extensive routing capabilities, allowing organizations to manage traffic efficiently even under heavy loads. The FRX6000 boasted high throughput rates and low latency, making it suitable for demanding applications. With support for various network protocols, including IP, IPX, and AppleTalk, its adaptability made it a versatile choice for diverse networking needs. Moreover, security features like VLAN support and Access Control Lists (ACLs) provided enhanced protection against potential threats.

Moving to the FRX4000, this model offered a balance between performance and cost-effectiveness. The FRX4000 maintained many of the essential features of its larger counterpart while catering to medium-sized enterprises. It provided Layer 3 routing and could handle multiple simultaneous connections, ensuring seamless communication across departments. The modular design allowed for easy upgrades, enabling businesses to expand their network infrastructure without significant overhauls. This made the FRX4000 an attractive option for organizations looking to optimize their network investments.

Lastly, the FRX1800, designed for small to medium businesses, focused on simplicity and ease of use while still incorporating powerful network management capabilities. Its user-friendly interface made it accessible for organizations lacking extensive IT resources. The FRX1800 provided essential functionalities such as Integrated Layer 2 switching and routing, network monitoring, and basic security features, ensuring that even smaller companies could maintain efficient, reliable networking without overwhelming complexity.

All three models utilized advanced technologies, including a high bandwidth backbone and state-of-the-art switching architecture, to enable fast and reliable data transfer. They also supported Quality of Service (QoS) mechanisms, allowing businesses to prioritize critical applications and ensure consistent performance across the network.

In summary, the Cabletron FRX6000, FRX4000, and FRX1800 were pivotal in enhancing network capabilities, providing organizations with scalable, secure, and high-performance options tailored to their specific needs.
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