2V0-41.24 Question 80
Select 3A network administrator is troubleshooting a packet forwarding issue in an NSX-T Data Center deployment. They need to understand how packets are forwarded at each stage of the process. Which tables play a role in the packet forwarding decision within the NSX-T architecture?
- A
MAC Table
- B
ARP Table
- C
Forwarding Table
- D
Routing Table
- E
Firewall Table
- F
NAT Table
Show answer and explanation
Correct answers: A, C, D
Explanation
In NSX-T, packet forwarding relies on multiple tables depending on the layer of operation. The MAC Table is used for Layer 2 forwarding, while the Routing Table handles Layer 3 routing decisions. The Forwarding Table is essential for maintaining flow state and ensuring efficient delivery. ARP, Firewall, and NAT Tables serve specialized functions but do not directly contribute to forwarding decisions.
- A. Correct.
The MAC Table is used to map MAC addresses to specific interfaces or ports. It plays a vital role in switching operations and is critical for Layer 2 forwarding decisions.
- B. Incorrect.
The ARP Table is primarily used for resolving IP addresses to MAC addresses. While it is important for communication, it is not directly used in forwarding decisions.
- C. Correct.
The Forwarding Table (or Flow Table) is central to NSX and contains flow-related information for packet forwarding. It is integral to both Layer 2 and Layer 3 forwarding operations.
- D. Correct.
The Routing Table is used for Layer 3 packet forwarding decisions and contains information about network routes. It is critical for determining the next hop in routed traffic.
- E. Incorrect.
The Firewall Table is used for security policies and filtering traffic. While important for enforcing rules, it does not directly play a role in deciding how packets are forwarded.
- F. Incorrect.
The NAT Table is used for translating network addresses, not for forwarding decisions. It is more relevant to address translation processes.