Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 421

NOTE: If you use an active optical cable (AOC), you can convert the QSFP+ port to a 10 Gigabit SFP+ port or 1 Gigabit SFP port. You can use the speed command to enable the required speed. 6 Optionally, set full- or half-duplex. INTERFACE mode duplex {half | full} 7 Disable auto-negotiation on the port. INTERFACE mode no negotiation auto If the speed was set to 1000, do not disable auto-negotiation. 8 Verify configuration changes. INTERFACE mode show config Example of the show interfaces status Command to View Link Status NOTE: The show interfaces status command displays link status, but not administrative status. For both link and administrative status, use the show ip interface command. In the previous example, several ports display "Auto" in the Speed field. In the following example, the speed of port 1/1 is set to 100Mb and then its auto-negotiation is disabled. Configuration Task List for Physical Interfaces By default, all interfaces are operationally disabled and traffic does not pass through them. The following section includes information about optional configurations for physical interfaces: • Overview of Layer Modes • Configuring Layer 2 (Data Link) Mode • Configuring Layer 2 (Interface) Mode • Management Interfaces • Auto-Negotiation on Ethernet Interfaces • Clearing Interface Counters Overview of Layer Modes On the Dell Networking OS, you can place physical interfaces, port channels, and VLANs in Layer 2 mode or Layer 3 mode. By default, VLANs are in Layer 2 mode. Table 36. Layer Modes Type of Interface Possible Modes 10-Gigabit Ethernet and 40- Layer 2 Gigabit Ethernet Layer 3 Requires Creation No Default State Shutdown (disabled) Management N/A No PE Gigabit Ethernet Layer 2 No Loopback Layer 3 Yes Shutdown (disabled) Shutdown (disabled) No shutdown (enabled) Interfaces 421