Interface Type

specifies the physical interface over which this IP interface will run.

Descriptions of Parameters Specific to Frame Relay Interfaces

Source Port/DLCI

identifies the physical and logical interface of this end of the frame relay link.

Make sure the physical frame relay port is not reserved for backup DLCIs (as determined by the For Backup Use Only? parameter in the port record—see page 7-18).

Also Make sure this DLCI is not configured as a Frame Relay

Backup DLCI or as part of an intra-nodal frame relay PVC.

Enable Inverse ARP

allows (if Y) the frame relay interface to be configured without specifying a desti- nation IP address. Once the frame relay interface and its DLCI become active, the IP function in the SmartSwitch 1800 sends an Inverse ARP (Address Resolution Pro- tocol) request over the interface. The response will contain the destination IP address, allowing the IP interface to become active.

If an ARP request from the SmartSwitch 1800 receives no response within 5 seconds, the request will be resent every 5 seconds, up to 5 times. After the 5th attempt, a 30- second timer will start, after which the re-send sequence will be repeated.

If Enable Inverse ARP is changed from N to Y, the SmartSwitch will immediately gen- erate an Inverse ARP request.

If this parameter is set to N, a Destination IP Address (see next entry) must be con- figured.

Destination IP Address

is the IP address of the end-to-end receiver for point-to-point frame relay connections. The valid range of values guarantees that you cannot configure all 0s or all 1s for a network ID, node ID, or subnet ID. (See page 14-1.)

Unnumbered Interface

allows the point-to-point frame relay interface to be configured without specifying a source IP address. If Y, the address of the lowest IP interface number (not the lowest address, but the number, in the range 0–256 , that identifies the interface) in the Smart- Switch is used as a default source IP address. (It does not matter what type that interface is.) All un-numbered interfaces on the SmartSwitch use the same default address.

If a new interface with a lower number is added, that interface’s address will become the new default source IP address, but only after the next IPL of the SmartSwitch.

Naturally, this feature works only if there is at least one numbered interface in the device. If there are none, all un-numbered interfaces remain disabled. Once a num- bered interface is added, all un-numbered interfaces will become active.

Source IP Address

is the IP address of the end-to-end sender. The valid range of values guarantees that you cannot configure all 0s or all 1s for a network ID, node ID, or subnet ID. (See page 14-1.)

Configuring IP Routing

14-11

Page 226 Page 228
Page 227
Image 227
Cabletron Systems 1800 manual Source Port/DLCI
Page 226 Page 228

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.
Top Page Image Contents