If you need to connect more than one switch and going to have more than one VLAN, you need to configure trunk port in order to send traffic between switches. Below shows how to set trunk port (802.1Q) on 3Com Switch 3300XM.
Backup hardware’s configuration is the one important routine for network engineers so that when the hardware break down you can recover the failed system within an acceptable time. To backup the configuration, one effective way is to use TFTP to backup and restore configuration between remote hosts.
In the example below, I’ll show how to backup and restore configurations between TFTP Server and Cisco’s router. The TFTP Server will use Cisco TFTP Server software.
When you know IP address and mask number, you sometimes want to know subnet number, subnet broadcast address and range of valid IP addresses. In common ways, you can find these by convert the IP address with mask number to binary and perform boolean AND but that takes too much time. So let see how to find these answers in a short time.
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