Cisco Nexus 7000 Design Manual page 33

Figure 11 shows the available backplane connections in the UCS 5100 Series Chassis. As the illustration
shows, each of the two fabric extenders (I/O module) has four 10GBASE KR (802.3ap) standardized
Ethernet backplane paths available for connection to the half-width blade slot. This means that each
half-width slot has the potential to support up to 80Gb of aggregate traffic. What is realized depends on
several factors namely:
Fabric Extender model (2204XP or 2208XP)
•
Modular LAN on Motherboard (mLOM) card
•
Mezzanine Slot card
•
The Cisco UCS 2208XP Series Fabric Extenders, installed in each blade chassis, have eight 10 Gigabit
Ethernet, FCoE-capable, Enhanced Small Form-Factor Pluggable (SFP+) ports that connect the blade
chassis to the fabric interconnect. The Cisco UCS 2204 has four external ports with identical
characteristics to connect to the fabric interconnect. Each Cisco UCS 2208XP has thirty-two 10 Gigabit
Ethernet ports connected through the midplane KR lanes to each half-width slot in the chassis, while the
2204XP has sixteen 10 Gigabit Ethernet ports. This means the 2204XP enables two KR lanes per
half-width blade slot while the 2208XP enables all four. The number of KR lanes indicates the potential
I/O available to the chassis and therefore blades.
Figure 11 Cisco UCS 5100 Chassis Backplane Connections
VMware vSphere 5.1 on FlexPod with Nexus 7000 Using FCoE
FlexPod Implementation and Design
33