200-155 · Question #118
When configuring virtual PortChannels on Cisco Nexus switches, what does the vPC domain consist of?
The correct answer is D. two vPC peer switches connected by a peer link. The vPC domain in Cisco Nexus switches consists of two vPC peer switches that are interconnected by a dedicated vPC peer link.
Question
When configuring virtual PortChannels on Cisco Nexus switches, what does the vPC domain consist of?
Options
- Atwo vPC peer switches connected by a virtual switch link
- Btwo VSS peer switches connected by a peer link
- Ctwo VSS peer switches connected by a port channel
- Dtwo vPC peer switches connected by a peer link
How the community answered
(45 responses)- A2% (1)
- B4% (2)
- C7% (3)
- D87% (39)
Why each option
The vPC domain in Cisco Nexus switches consists of two vPC peer switches that are interconnected by a dedicated vPC peer link.
A vPC domain uses a 'peer link,' not a 'virtual switch link,' to connect the two vPC peer switches.
vPC (Virtual PortChannel) is a Cisco Nexus feature; VSS (Virtual Switching System) is a separate high-availability feature for Cisco Catalyst switches, making 'VSS peer switches' incorrect in this context.
vPC (Virtual PortChannel) is a Cisco Nexus feature, not VSS, and while the peer link is a PortChannel, specifying 'VSS peer switches' is incorrect.
A vPC domain fundamentally consists of two Cisco Nexus switches configured as vPC peers. These two switches are interconnected by a dedicated vPC peer link, which is a PortChannel responsible for synchronizing control plane information and carrying multicast, broadcast, and unknown unicast traffic between peers.
Concept tested: Cisco Nexus vPC domain components
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/multihop_vpc/513_n1_1/Cisco_n5k_mh_vpc_config_gd_513.html#concept_3593679D6D194B22B26C6572D81977F0
Topics
Community Discussion
No community discussion yet for this question.