When a VLAN tag is added to an Ethernet frame, what is the max size of the frame? Question 6Select one:1580 bytes1518 bytes1522 bytes1530 bytes

Break Down the Problem

1. Identify the original maximum size of an Ethernet frame.
2. Determine the size added by the VLAN tag.

Relevant Concepts

1. The standard maximum size of an Ethernet frame is 1518 bytes.
2. When a VLAN tag is added, it typically adds 4 bytes (for the IEEE 802.1Q tagging).

Analysis and Detail

1. Original Ethernet Frame Size: 1518 bytes, which includes:

   • 1500 bytes for the Maximum Transmission Unit (MTU).
   • 18 bytes for the Ethernet header (14 bytes) and Frame Check Sequence (FCS) (4 bytes).

2. Frame size with VLAN tag: $\text{Total Frame Size} = \text{Original Frame Size} + \text{VLAN Tag Size} = 1518 \text{ bytes} + 4 \text{ bytes} = 1522 \text{ bytes}$

Verify and Summarize

• Adding the 4 bytes for the VLAN tag to the 1518 bytes gives a total of 1522 bytes.
• Thus, the maximum size of the Ethernet frame with a VLAN tag is 1522 bytes.

Final Answer

The maximum size of the frame when a VLAN tag is added is 1522 bytes.