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Majid Azimi
Asked: 2011-12-28 13:46:39 +0800 CST

Does native vlan tagging work with voice vlan?

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we hard-code native vlan tagging:

vlan dot1q tag native

then we configure a port like this:

interface FastEthernet0/1
switchport access vlan 20
switchport mode access
switchport voice vlan 500
mls qos trust cos
spanning-tree portfast

Does this cause problem? I mean second configuration assumes that there are two vlans:

  1. native vlan which is untagged (but here it is tagged)
  2. voice vlan
vlan spanning-tree

1 Answers

  1. Best Answer

    I asked this question in networking-forum and they told:

    No, the IOS doesn't consider the voice/access port a trunk port.

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