Cisco Systems IC-23 manual System OK, IC-57

Page 35

Configuring LAN Interfaces

Configuring a LAN Extender Interface

Table 4

LED Trouble Indicators (continued)

 

 

 

SYSTEM OK

On Steady

Lights when the unit passes the power on diagnostics. This

 

 

 

indicates proper operation.

 

 

 

 

 

 

Blinking

Blinks while running startup diagnostics, then goes on

 

 

 

steady.

 

 

 

Blinking after the start-up diagnostics indicates that a

 

 

 

system error has been encountered. Contact your system

 

 

 

administrator who will have you disconnect and then

 

 

 

reconnect the power to recycle your LAN Extender. If the

 

 

 

blinking continues, check your WAN connection and the

 

 

 

RX and TX LEDs.

 

 

 

 

 

 

Off

An error condition has occurred. Contact your system

 

 

 

administrator who will ask you to disconnect the power

 

 

 

cord and then reconnect it to re-establish power to your

 

 

 

LAN Extender.

 

 

 

 

LED

 

Condition

Meaning

 

 

 

ISDN B1and

Flicker

The serial line is transmitting and receiving packets

ISDN B2

 

 

normally.

 

 

 

 

 

 

Blinking

A line fault has been detected. The LEDs will go on for

 

 

 

several seconds and then they will blink a certain number

 

 

 

of times to indicate a particular error. The LEDs will blink

 

 

 

at a rate of one to two blinks per second. The following are

 

 

 

the errors that can be encountered:

 

 

 

1 blink = The serial line is down.

 

 

 

2 blinks = No clock signal was received.

 

 

 

3 blinks = An excessive number of cyclic redundancy

 

 

 

check (CRC) errors has been received.

 

 

 

4 blinks = The line is noisy.

 

 

 

5 blinks = A loopback condition has occurred.

 

 

 

6 blinks = The PPP link has failed.

 

 

 

Contact your system administrator.

 

 

 

LAN TX and

Flicker

The Ethernet LAN connection is transmitting and receiving

LAN RX

 

 

data normally.

 

 

 

COLLISION

 

Detects data collisions.

 

 

 

 

LINK OK

 

Steady

Indicates that the serial link is up and functioning.

 

 

 

 

For more complete network troubleshooting information, refer to the Troubleshooting Internetworking Systems publication.

Cisco IOS Interface Configuration Guide

IC-57

Image 35
Contents IC-23 Configuring an Ethernet or Fast Ethernet InterfaceIC-24 Ethernet and Fast Ethernet Interface Configuration Task ListIC-25 Specifying an Ethernet or Fast Ethernet InterfaceSpecifying an Ethernet Encapsulation Method IC-26 Specifying the Media and Connector TypeSpecifying Full-Duplex Operation IC-27 Configuring Fast Ethernet 100BASE-TExtending the 10BASE-T Capability IC-28 Configuring PA-12E/2FE Port AdapterIC-29 Configuring the PA-12E/2FE Port AdapterIC-30 IC-31 Monitoring and Maintaining the PA-12E/2FE Port AdapterIC-32 IC-33 Configuring Fast EtherChannelConfiguring the 100VG-AnyLAN Port Adapter IC-34 Fast EtherChannel Configuration Task ListIC-35 Configuring the Port-Channel InterfaceIC-36 Configuring the Fast Ethernet InterfacesIC-37 Configuring a Fiber Distributed Data InterfaceIC-38 Using Connection Management InformationIC-39 Fddi Configuration Task ListSpecifying a Fddi IC-40 Enabling Full-Duplex Mode on the FddiEnabling Fddi Bridging Encapsulation Modifying the C-Min Timer Setting the Token Rotation TimeSetting the Transmission Valid Timer Controlling the Transmission TimerControlling SMT Frame Processing Modifying the TB-Min TimerModifying the Fddi Timeout Timer Setting the Bit ControlIC-43 Setting Fddi Frames Per Token LimitControlling the CMT Microcode Starting and Stopping FddiIC-44 Configuring a Hub InterfaceControlling the Fddi SMT Message Queue Size Preallocating Buffers for Bursty Fddi TrafficIC-45 Enabling a Hub PortDisabling or Enabling Automatic Receiver Polarity Reversal Disabling or Enabling the Link Test FunctionIC-46 Enabling Source Address ControlEnabling Snmp Illegal Address Trap IC-47 Configuring a LAN Extender InterfaceConnecting a LAN Extender to a Core Router Expanded View of the Connection to a Core RouterManagement of the LAN Extender Interface Installing a LAN Extender at a Remote SiteDiscovering the MAC Address Upgrading Software for the LAN ExtenderIC-49 Configuring the LAN ExtenderIC-50 LAN Extender Interface Configuration Task ListConfiguring and Creating a LAN Extender Interface IC-51 Defining Packet FiltersIC-52 Filtering by MAC Address and Vendor CodeIC-53 Controlling Priority QueueingIC-54 Controlling the Sending of Commands to the LAN ExtenderIC-55 Restarting the LAN ExtenderDownloading a Software Image to the LAN Extender IC-56 Troubleshooting the LAN ExtenderIC-57 System OKIC-58 Configuring a Token Ring InterfaceEnabling Early Token Release Token Ring Interface Configuration Task ListDedicated Token Ring Port Adapter Specifying a Token Ring InterfaceMonitoring and Maintaining the Port LAN Interface Configuration ExamplesConfiguring PCbus Token Ring Interface Management Enabling Token Ring Concentrator PortIC-61 Ethernet Encapsulation Enablement ExampleFull Duplex Enablement Operation Example PA-12E/2FE Port Configuration ExamplesIC-62 PA-VG100 Port Adapter Configuration ExampleIC-63 Fast EtherChannel Configuration ExamplesIC-64 Fddi Frames Configuration ExampleIC-65 Hub Configuration ExamplesHub Port Startup Examples Hub Port Shutdown ExamplesMAC Address Filtering Example LAN Extender Enablement Interface ExampleLAN Extender Interface Access List Examples Snmp Illegal Address Trap Enablement for Hub Port ExampleIC-67 Ethernet Type Code Filtering ExampleIC-68

IC-23 specifications

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