White Papers

• Monitoring and Maintaining Interfaces
• Displaying Traffic Statistics on HiGig Ports
• Link Bundle Monitoring
• Monitoring HiGig Link Bundles
• Non Dell-Qualified Transceivers
• Splitting 40G Ports without Reload
• Splitting QSFP Ports to SFP+ Ports
• Configuring wavelength for 10–Gigabit SFP+ optics
• Link Dampening
• Using Ethernet Pause Frames for Flow Control
• Configure the MTU Size on an Interface
• Auto-Negotiation on Ethernet Interfaces
• View Advanced Interface Information
• Configuring the Traffic Sampling Size Globally
• Dynamic Counters
Port Numbering Convention
On the switch, all ports operate by default in 40GbE mode. If you use a breakout cable, each port can operate in 4x10GbE mode.
Ports are located on three line cards as shown below. The line cards are factory-installed and are not hot-swappable or
field-replaceable. On each line card, the fixed 40GbE ports are numbered from bottom 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 53. Port Numbering
Interface Types
The following table describes different interface types.
Table 37. Different Types of Interfaces
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)
Interfaces 367