When you configure the IP address, subnet mask, and broadcast address (and when you configure VLAN membership on the sc0 interface) of the sc0 or me1 interface, you can access the switch through Telnet or SNMP. ![]() ![]() The out-of-band management interfaces (me1 and sl0) are not connected to the switching fabric and do not participate in any of these functions. The in-band (sc0) management interface is connected to the switching fabric and participates in all of the functions of a normal switch port, such as spanning tree, Cisco Discovery Protocol (CDP), and VLAN membership. The Catalyst 4500 series, the Catalyst 2948G, Catalyst 2948G-GE-TX, and the Catalyst 2980G switches have three management interfaces:
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