Troubleshooting

Unusual Network Activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Server

MAC Address “A”; VLAN 1

 

 

 

 

 

 

 

 

 

 

 

 

8212zl Switch

 

 

 

 

Switch with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VLAN 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single

 

 

 

 

 

 

 

(Multiple

 

 

 

 

 

 

 

 

MAC Address “A”; VLAN 2

 

Forwarding

 

 

 

 

Forwarding

 

 

 

 

 

 

 

Database)

 

 

 

 

Database

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VLAN 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem: This switch detects

 

 

 

 

 

 

 

 

 

 

continual moves of MAC

 

 

 

 

 

 

 

 

 

 

address “A” between ports.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure C-5. Example of Duplicate MAC AddressFan Failure

When two or more fans fail, a two-minute timer starts. After two minutes, the switch is powered down and must be rebooted to restart it. This protects the switch from possible overheating.

ProCurve recommends that you replace a failed fan tray assembly within one minute of removing it.

C-21