Interfaces | 377To 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 on each unit of the S4810 and Z9000; it provides dedicatedmanagement access to the system. The other S-Series (non-S4810) systems supported by FTOS do nothave this dedicated management interface, but you can use any Ethernet port configured with an IP addressand 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 and for more information on port channels, seePort Channel Interfaces.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• Configure Layer 2 (Data Link) Mode• Management Interfaces• Auto-Negotiation on Ethernet Interfaces• Adjust the keepalive timer• Clear interface countersFTOS Behavior: S-Series and Z9000 systems use a single MAC address for all physical interfaceswhile E-Series and C-Series use a unique MAC address for each physical interface, though this resultsin no functional difference between these platforms.
