vPC Flashcards
(15 cards)
What does VPC stand for?
You selected “Virtual Port Channel” correctly because it refers to a technology that allows for the aggregation of links from multiple physical switches into a single logical channel, enhancing bandwidth and redundancy in network setups.
Which Cisco NX-OS version introduced VPC?
You selected “4.1(4)” correctly because this version of NX-OS was the first to introduce Virtual Port Channel (VPC), a crucial feature that enhances link aggregation and network resilience.
What is the main advantage of VPC over traditional port channels?
You selected “It allows bundling links across different devices” because VPC enables the aggregation of links from separate switches into a single logical channel, enhancing bandwidth and redundancy.
What is the maximum number of devices that can participate in a VPC?
You selected “2” because a Virtual Port Channel (VPC) can only be established between two switches, ensuring effective link aggregation and redundancy.
Which layer does VPC operate on?
You chose “Layer 2” correctly because VPC operates at the data link layer, allowing it to bundle links and enhance network resilience between switches.
What must match across all ports in a VPC?
You chose “Speed and Duplex settings,” which is correct because these settings must be identical on all VPC member ports to ensure proper communication and operation.
Which term is NOT associated with VPC?
You correctly identified “Layer 3 VPC” as the term not associated with VPC because VPC operates strictly at Layer 2, focusing on link aggregation and redundancy between switches.
How many VPC Peer-Links can exist in a Nexus switch?
You selected “1” correctly because only one VPC Peer-Link is allowed per Nexus switch, ensuring a clear and simplified path for data traffic between peers while maintaining effective redundancy through other means.
What happens if the VPC Peer-Link goes down but the Peer Keepalive Link remains up?
You selected “The secondary switch suspends its VPC member ports” because when the VPC Peer-Link fails, the remaining Peer Keepalive Link alerts the secondary switch to suspend its ports, which helps prevent a split-brain scenario and maintain network stability
What is a common best practice for VPC Peer Keepalive Links?
You chose “Using a dedicated L3 link, SVI, or L3 port channel” because this option aligns with best practices for VPC Peer Keepalive Links, ensuring reliable communication between peer switches.
What happens if the VPC Peer Keepalive Link fails but the Peer-Link remains up?
Your selection, “No impact on VPC operation,” is correct because the Peer Keepalive Link’s primary role is to prevent split-brain scenarios during a Peer-Link failure; therefore, if the Peer-Link is operational, the VPC continues functioning normally.
What is the first step in configuring a VPC?
You correctly chose “Creating the VPC Domain” because it establishes the foundational relationship between the two switches, enabling them to function as a cohesive VPC system.
Which of the following statements about VPC Member Ports is true?
You selected “They must have the same VPC number assigned on both switches” because it’s crucial for ensuring that the switches recognize each other as part of the same Virtual Port Channel (VPC) configuration.
What is required for a VPC Peer-Link to function?
Your selection, “It must be a Layer 2 Port Channel,” is correct because a VPC Peer-Link is essential for synchronizing data between the two switches and must operate at Layer 2, ensuring that both switches can share traffic and maintain consistent VPC configurations
Which of the following is NOT a valid way to configure the VPC Peer Keepalive Link?
You chose “Using a Layer 2 Trunk,” which is correct because a Layer 2 Trunk cannot establish the Peer Keepalive Link; it requires a Layer 3 connection to ensure reliable communication between the switches.
