VLAN tag in Ethernet Frame 0x8000

[keesepema]

Studying CCNA2 I stumbled upon a problem with PacketTracer excercise 3.2.8.

The VLAN ID in the Ethernet frame on is comprised within the TAG field, between the source MAC field and the Type/Length field.

The value should be 0x8100 for dot1q. However the exercise shows the value 0x8000 in the 2 bytes TAG field.  From what I learned as sofar 0x8000 references the IS-IS protocol.

Am I right?

[Martin L]

Yes, 802.1Q VLAN tagging uses an 0x8100 EtherType value. Not sure who has 8000 value, it's not listed in following table https://en.wikipedia.org/wiki/EtherType

https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml

This could be a typo , printing mistake. 

Regards, ML
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[MHM Cisco World]

can you screen shoot for the frame format you get?

[keesepema]

Update:

After rebooting my laptop and restarting PT, the issue with the 0x8000 tag disappeared and showed the right VLAN -tag 0x8100.
I think it has something to do with PT or buffering old values somewhere in memory.

Thanks for your time to address my question.