Cisco Systems IC-23 manual Troubleshooting the LAN Extender, IC-56

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Configuring LAN Interfaces

Configuring a LAN Extender Interface

Troubleshooting the LAN Extender

The primary means of troubleshooting the LAN Extender is by using the light emitting diodes (LEDs) that are present on the chassis. This section will help you assist the remote user at the LAN Extender site who can observe the LEDs.

The key to problem solving is to try to isolate the problem to a specific subsystem. By comparing what the system is doing to what it should be doing, the task of isolating a problem is greatly simplified.

The Cisco 1000 series LAN Extender uses multiple LEDs to indicate its current operating condition. By observing the LEDs, any fault conditions that the unit is encountering can be observed. The system LEDs are located on the front panel of your LAN Extender (see Figure 9).

Figure 9 LAN Extender LEDs

H2561

When there is a problem with the LAN Extender, a user at the remote site should contact you and report the condition of the LEDs located on the front panel of the LAN Extender. You can then use this information to diagnose or verify the operation of the system. Table 4 explains the LEDs.

Table 4

LED Trouble Indicators

 

 

 

 

 

LED

 

Condition

Meaning

 

 

 

 

POWER

 

On Steady

Indicates that 12 V DC is being supplied to the LAN

 

 

 

Extender.

 

 

 

 

 

 

Off

Indicates that power is not reaching the unit.

 

 

 

To correct the problem, make sure the power supply is

 

 

 

plugged into the wall receptacle and that the cable from the

 

 

 

power supply is connected to he unit.

 

 

 

 

Cisco IOS Interface Configuration Guide

IC-56

Image 34
Contents Configuring an Ethernet or Fast Ethernet Interface IC-23Ethernet and Fast Ethernet Interface Configuration Task List IC-24Specifying an Ethernet Encapsulation Method Specifying an Ethernet or Fast Ethernet InterfaceIC-25 Specifying Full-Duplex Operation Specifying the Media and Connector TypeIC-26 Extending the 10BASE-T Capability Configuring Fast Ethernet 100BASE-TIC-27 Configuring PA-12E/2FE Port Adapter IC-28Configuring the PA-12E/2FE Port Adapter IC-29IC-30 Monitoring and Maintaining the PA-12E/2FE Port Adapter IC-31IC-32 Configuring the 100VG-AnyLAN Port Adapter Configuring Fast EtherChannelIC-33 Fast EtherChannel Configuration Task List IC-34Configuring the Port-Channel Interface IC-35Configuring the Fast Ethernet Interfaces IC-36Configuring a Fiber Distributed Data Interface IC-37Using Connection Management Information IC-38Specifying a Fddi Fddi Configuration Task ListIC-39 Enabling Fddi Bridging Encapsulation Enabling Full-Duplex Mode on the FddiIC-40 Controlling the Transmission Timer Setting the Token Rotation TimeSetting the Transmission Valid Timer Modifying the C-Min TimerSetting the Bit Control Modifying the TB-Min TimerModifying the Fddi Timeout Timer Controlling SMT Frame ProcessingStarting and Stopping Fddi Setting Fddi Frames Per Token LimitControlling the CMT Microcode IC-43Preallocating Buffers for Bursty Fddi Traffic Configuring a Hub InterfaceControlling the Fddi SMT Message Queue Size IC-44Disabling or Enabling the Link Test Function Enabling a Hub PortDisabling or Enabling Automatic Receiver Polarity Reversal IC-45Enabling Snmp Illegal Address Trap Enabling Source Address ControlIC-46 Expanded View of the Connection to a Core Router Configuring a LAN Extender InterfaceConnecting a LAN Extender to a Core Router IC-47Upgrading Software for the LAN Extender Installing a LAN Extender at a Remote SiteDiscovering the MAC Address Management of the LAN Extender InterfaceConfiguring the LAN Extender IC-49Configuring and Creating a LAN Extender Interface LAN Extender Interface Configuration Task ListIC-50 Defining Packet Filters IC-51Filtering by MAC Address and Vendor Code IC-52Controlling Priority Queueing IC-53Controlling the Sending of Commands to the LAN Extender IC-54Downloading a Software Image to the LAN Extender Restarting the LAN ExtenderIC-55 Troubleshooting the LAN Extender IC-56System OK IC-57Configuring a Token Ring Interface IC-58Specifying a Token Ring Interface Token Ring Interface Configuration Task ListDedicated Token Ring Port Adapter Enabling Early Token ReleaseEnabling Token Ring Concentrator Port LAN Interface Configuration ExamplesConfiguring PCbus Token Ring Interface Management Monitoring and Maintaining the PortPA-12E/2FE Port Configuration Examples Ethernet Encapsulation Enablement ExampleFull Duplex Enablement Operation Example IC-61PA-VG100 Port Adapter Configuration Example IC-62Fast EtherChannel Configuration Examples IC-63Fddi Frames Configuration Example IC-64Hub Port Shutdown Examples Hub Configuration ExamplesHub Port Startup Examples IC-65Snmp Illegal Address Trap Enablement for Hub Port Example LAN Extender Enablement Interface ExampleLAN Extender Interface Access List Examples MAC Address Filtering ExampleEthernet Type Code Filtering Example IC-67IC-68

IC-23 specifications

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