TAILIEUCHUNG - eshooting Tips

• Make sure the trunking mode configured on both ends of the link is valid—the trunking mode should be on or desirable on one end and on, desirable, or auto on the other end (use the show trunk command). • Make sure the trunk encapsulation type configured on both ends of the link is valid (use the show trunk command). • Make sure the port is trunking and that the allowed VLAN list allows the desired VLAN range to pass through (use the show trunk command). • On IEEE trunks, make sure the native VLAN is the same on both ends of the. | Problem Possible Solutions shooting Tips yst 6000 Family yst 5000 Family yst 4000 Family yst 2926G Series lyst 2926 Series italyst 2948G italyst 2980G ovides tips for troubleshooting th your Catalyst 6000 family 000 family switch lily switch Catalyst 2926G rlyst 2926 series switch ritch or Catalyst 2980G switch. rmation on installing and witch refer to the hardware and tation for your switch model. 2 3 isco Systems Cannot connect to a switch through the console port Make sure you are using the correct type of cable refer to the hardware documentation for your switch supervisor engine . Make sure the terminal configuration matches the switch console port configuration default console port settings are 9600 baud 8 1 stop bit 2 stop bits if the supervisor engine is from the Catalyst 6000 family . Make sure the cable pinouts are correct for your supervisor engine refer to the hardware documentation for your switch supervisor e Cannot communicate with another device Cannot Telnet to the switch Cannot communicate with a local or remote host Make sure the LINK LED for the port is green. Check the cabling Host-to-switch 10BaseT connections and router-to-switch 10BaseT or 100BaseTX connections typically are made using a straigl Switch-to-switch 10BaseT or 100BaseTX connections typically are made using a rollover cable. For SC- or ST-type fiber connections make sure transmit Tx on one end of the link connects to receive Rx on the other end of Make sure the interface you are connecting to sc0 or mel is configured UP use the show interface command to check . Make sure the IP address subnet mask and VLAN membership of the switch interface sc0 or mel is correct use the show interfa To prevent conflicts make sure the mel and sc0 interfaces are configured with IP addresses and subnet masks in different subnets u command to check or disable one of the interfaces using the set interface sc0 mel disable command. Make sure the host configuration IP address subnet mask default gateway

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