Configuring LAN Interfaces

Configuring a Fiber Distributed Data Interface

The CFM state is through A in the sample output, which means this interface’s Phy-A has successfully completed CMT with the Phy-B of the neighbor and Phy-B of this interface has successfully completed CMT with the Phy-A of the neighbor.

The display (or nondisplay) of the upstream and downstream neighbor does not affect the ability to route data. Since the upstream neighbor is also its downstream neighbor in the sample, there are only two stations in the ring: the network server and the router at address 0800.2008.C52E.

FDDI Configuration Task List

Perform the tasks in the following sections to configure an FDDI interface:

Specifying a FDDI (Required)

Enabling FDDI Bridging Encapsulation (Optional)

Enabling Full-Duplex Mode on the FDDI (Optional)

Setting the Token Rotation Time (Optional)

Setting the Transmission Valid Timer (Optional)

Controlling the Transmission Timer (Optional)

Modifying the C-Min Timer (Optional)

Modifying the TB-Min Timer (Optional)

Modifying the FDDI Timeout Timer (Optional)

Controlling SMT Frame Processing (Optional)

Enabling Duplicate Address Checking (Optional)

Setting the Bit Control (Optional)

Controlling the CMT Microcode (Optional)

Starting and Stopping FDDI (Optional)

Setting FDDI Frames Per Token Limit (Optional)

Controlling the FDDI SMT Message Queue Size (Optional)

Preallocating Buffers for Bursty FDDI Traffic (Optional)

Specifying a FDDI

To specify an FDDI interface and enter interface configuration mode, use one of the following commands in global configuration mode:

Command

Purpose

 

 

interface fddi number

Begins interface configuration.

 

 

interface fddi slot/port

Begins interface configuration for the Cisco 7200 or Cisco 7500 series routers.

 

 

Cisco IOS Interface Configuration Guide

IC-39

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Cisco Systems IC-23 manual Fddi Configuration Task List, Specifying a Fddi, IC-39

IC-23 specifications

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