Interfaces | 419To confirm that the interface is enabled, use the show config command in the INTERFACE mode.To leave the INTERFACE mode, use the exit command or end command.The user can not delete a physical interface.Physical InterfacesThe Management Ethernet interface, is a single RJ-45 Fast Ethernet port on the Route Processor Module(RPM) of the C-Series and E-Series, and provides dedicated management access to the system. TheS-Series systems supported by FTOS do not have this dedicated management interface, but you can useany Ethernet port configured with an IP address and route.Line card interfaces support Layer 2 and Layer 3 traffic over the 10/100/1000, Gigabit, and 10-GigabitEthernet interfaces. SONET interfaces with PPP encapsulation support Layer 3 traffic. These interfaces(except SONET interfaces with PPP encapsulation) can also become part of virtual interfaces such asVLANs or port channels.Link detection on ExaScale line cards is interrupt-based rather than poll-based, which enables ExaScalecards to bring up and take down links faster.For more information on VLANs, see Bulk Configuration on page 440 and for more information on portchannels, see Port Channel Interfaces on page 428.Configuration Task List for Physical InterfacesBy default, all interfaces are operationally disabled and traffic will not pass through them.The following section includes information about optional configurations for physical interfaces:• Overview of Layer Modes on page 420• Configure Layer 2 (Data Link) Mode on page 420• Management Interfaces on page 423• Auto-Negotiation on Ethernet Interfaces on page 455• Adjust the keepalive timer on page 457• Clear interface counters on page 461FTOS Behavior: S-Series systems use a single MAC address for all physical interfaces whileE-Series and C-Series use a unique MAC address for each physical interface, though this results in nofunctional difference between these platforms.
