The Catalyst 2900 is a multimodule system. The supervisor module is module 1, residing in the top slot. On each module, port 1 is the left most port. In some commands, such as set trunk , set cam , and set vlan commands, you can enter lists of ports and VLANs. You designate ports by entering the module and port number pairs, separated by commas.
Dashes take precedence over commas.
You specify lists of VLANs the same way you do for ports. Some commands require a MAC address, IP address, or IP alias, which must be designated in a standard format. This is true for most commands that use an IP address, except commands that define the IP address or IP alias.