tcpdump vlan capture tag priority

gistfile1.txt

#!/bin/sh

# VLANID is 10 | 0xa
# VLANID is 20 | 0x14
# VLANID is 3342 | 0x0d0e
# VLANID is 3340 | 0x0d0c
# https://www.binaryhexconverter.com/hex-to-binary-converter
# https://www.tcpdump.org/manpages/pcap-filter.7.html


# filter by VLAN 20 & prio 0
tcpdump -i eno1 -n -w - -s 50 | tcpdump -r - -n 'ether[14:2] == 0x0014' -e -xx

# filter by VLAN 10 & prio = 6
# vlan 10 = 0x0a
tcpdump -i bond4 -n -w - -s 50 | tcpdump -r - -n 'ether[15] == 0xa && ether[14] >> 5 = 6' -e -xx -c 100