The hardware and software configurations for vPC+ are similar to that of traditional vPC. What are the differences in the configuration of vPC+? (Choose three.)
A. FabricPath switch ID must be configured under the vPC domain.
B. Virtual switch ID of vPC+ must be configured under FabricPath domain.
C. On Cisco Nexus 7000 Series Switch, F1 interfaces must be used as the vPC+ peer links.
D. The vPC+ peer link must be configured as a Cisco FabricPath core port (switchport mode fabricpath).
E. FabricPath subswitch ID must be configured under the vPC domain.
Correct Answer: ACD
Explanation/Reference:
Explanation:
A vPC+ must still provide active-active Layer 2 paths for dual-homed CE switches or clouds, even though the FabricPath network allows only 1-to-1 mapping between the MAC address and the switch ID. vPC+ provides the solution by creating a unique virtual switch to the FabricPath network.
The FabricPath switch ID for the virtual switch becomes the outer source MAC address (OSA) in the FabricPath encapsulation header. Each vPC+ domain must have its own virtual switch ID.
Layer 2 multipathing is achieved by emulating a single virtual switch. Packets forwarded from host A to host B are sent to the MAC address of the virtual switch as the transit source, and traffic from host B to host A is now load balanced.
The vPC+ downstream links are FabricPath edge interfaces that connect to the CE hosts.
The First Hop Routing Protocols (FHRPs), which include the Hot Standby Routing Protocol (HSRP) and the Virtual Router Redundancy Protocol (VRRP), interoperate with a vPC+. You should dual-attach all Layer 3 switches to both vPC+ peer switches.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/fabricpath/513_n1_1/N5K_FabricPath_Configuration_Guide/ fp_n5k_interfaces.html (Figure 3-2)