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Setup time synchronization on HP Procurve switches

August 7th, 2011 | No Comments | Posted in network, Switch

By default, when an HP Procurve switch reboot, the switch time will revert to 1 Jan 1990 at 00:00:00. Some time, inaccurate time setting brings difficulties when we need to look at the log at a specific time. Manual time adjustments are not saved on HP Procurve switches after reboot. The solution is to setup time synchronization to a time (NTP) server. More »

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How to determine which switch and port a device is connected to

June 15th, 2009 | 3 Comments | Posted in Switch

Some times you need to trace a device (PC or notebook) is connected to which switch and port. For example, you need to find which switch and port is connected to a rogue DHCP server. If you are using Cisco catalyst switch, having the device IP and/or MAC address in hand you can find the device by searching at the mac address table of the switch. Although it is not difficult to do, in a big network, this task can be time consuming. More »

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