The Cisco UCS 6300 Series Fabric Interconnect joins next-generation UCS products, including the following hardware:
Cisco UCS 6332 Fabric Interconnect, an Ethernet or Fibre Channel over Ethernet (FCoE) chassis with 32 40-Gigabit Ethernet QSFP+ ports
Cisco UCS 6332-16UP Fabric Interconnect, an Ethernet, FCoE, and Fibre Channel chassis with 16 1- or 10-Gigabit Ethernet SFP+ ports or 16 4-, 8-, or 16-Gbps Fibre Channel ports, 24 40-Gigabit Ethernet QSFP+ ports
Cisco 2304 IOM or Cisco 2304V2, I/O modules with eight 40-Gigabit backplane ports and four 40-Gigabit Ethernet uplink ports
Multiple VICs
UCS 6332 Fabric Interconnect is a 1RU, top-of-rack switch with 32 40-Gigabit Ethernet QSFP+ ports, one 100/1000 network management port, one RS-232 console port for setting the initial configuration, and two USB ports for saving or loading configurations (see Figure 12-10). The switch also includes an L1 port and an L2 port for connecting two fabric interconnects to provide high availability. The switch mounts in a standard 19-inch rack, such as the Cisco R-Series rack. Cooling fans pull air front-to-rear. That is, air intake is on the fan side, and air exhaust is on the port side.
Figure 12-10 Cisco UCS Fabric Interconnect 6332
Ports on the Cisco UCS 6300 Series Fabric Interconnects can be configured to carry either Ethernet or Fibre Channel traffic. These ports are not reserved. They cannot be used by a Cisco UCS domain until you configure them. When you configure a port on a fabric interconnect, the administrative state is automatically set to enabled. If the port is connected to another device, this may cause traffic disruption. You can disable the port after it has been configured.
The Cisco UCS Fabric Interconnect 6300 Series supports splitting a single QSFP port into four 10-Gigabit Ethernet ports using a supported breakout cable. By default, there are 32 ports in the 40-Gigabit mode. These 40-Gigabit Ethernet ports are numbered in a 2-tuple naming convention. For example, the second 40-Gigabit Ethernet port is numbered as 1/2. The process of changing the configuration from 40-Gigabit Ethernet to 10-Gigabit Ethernet is called breakout, and the process of changing the configuration from 4 10-Gigabit Ethernet to 40-Gigabit Ethernet is called unconfigure. When you break out a 40-Gigabit Ethernet port into 10-Gigabit Ethernet ports, the resulting ports are numbered using a 3-tuple naming convention. For example, the breakout ports of the second 40-Gigabit Ethernet port are numbered as 1/2/1, 1/2/2, 1/2/3, and 1/2/4. Table 12-2 summarizes the constraints for breakout functionality for Cisco UCS 6300 Series Fabric Interconnects.
Table 12-2 Cisco UCS 6300 Port Breakout Summary
Note
Up to four breakout ports are allowed if QoS jumbo frames are used.