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Re: Phones and Voice tagging

 
nookie211
Advisor

тАО12-12-2013 05:37 AM

тАО12-12-2013 05:37 AM

Phones and Voice tagging

What is really the difference if I tag a Vlan as voice or if I dont then give the vlan a high QOS? Is there really any advantage in setting the vlan to phone rather than data if the vlan links are separated? 

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2 REPLIES 2
Fredrik L├╢nnman
Honored Contributor

тАО12-12-2013 10:28 PM

тАО12-12-2013 10:28 PM

Re: Phones and Voice tagging

A voice tagged VLAN will probably be communicated via LLDP-MED to the phones as well.
---
CCIE Service Provider
MASE Network Infrastructure [2011]
H3CSE
CCNP R&S

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David_Schwartzs
Honored Contributor

тАО12-13-2013 12:00 PM

тАО12-13-2013 12:00 PM

Re: Phones and Voice tagging

For what it's worth - the HP Press AIS Network Infrastructure exam prep book advises that Voice VLANs "separate, prioritize, and authenticate voice traffic moving through your network, and ... avoid the possibility of broadcast storms affecting VoIP (Voice-over-IP) operation."
Regards,
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David Schwartzstein
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