to top in multiples of four, starting with zero; for example, 0, 4, 8, 12, and so on. When a breakout cable is
installed, the resulting four 10GbE ports are numbered with the remaining numbers. For example, 40GbE
port 0 contains 10GbE ports 0, 1, 2, and 3; 40GbE port 4 contains 10GbE ports 4, 5, 6, and 7.
Line card 0 consists of ports 0 to 143; line card 1 consists of ports 0 to 191; line card 2 consists of ports 0
to 191.
Figure 43. Port Numbering
Interface Types
The following table describes different interface types.
Interface Type Modes Possible Default Mode Requires Creation Default State
Physical L2, L3 Unset No Shutdown
(disabled)
Management N/A N/A No No Shutdown
(enabled)
Loopback L3 L3 Yes No Shutdown
(enabled)
Null N/A N/A No Enabled
Port Channel L2, L3 L3 Yes Shutdown
(disabled)
VLAN L2, L3 L2 Yes (except default) L2 - Shutdown
(disabled)
L3 - No Shutdown
(enabled)
View Basic Interface Information
To view basic interface information, use the following command.
You have several options for viewing interface status and configuration parameters.
398 Interfaces