Reference Guide

Interfaces | 373
To 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 Interfaces
The 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 dedicated
management access to the system. The other S-Series (non-S4810) systems supported by FTOS do not
have this dedicated management interface, but you can use any 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-Gigabit
Ethernet 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 as
VLANs or port channels.
Link detection on ExaScale line cards is interrupt-based rather than poll-based, which enables ExaScale
cards to bring up and take down links faster.
For more information on VLANs, see Bulk Configuration and for more information on port channels, see
Port Channel Interfaces.
Configuration Task List for Physical Interfaces
By 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 counters
FTOS Behavior: S-Series and Z9000 systems use a single MAC address for all physical interfaces
while E-Series and C-Series use a unique MAC address for each physical interface, though this results
in no functional difference between these platforms.