[cisco-voip] auto QoS for Ip telephony solution

[Erik Erasmus (E)]

Hi



Does any one have good experience on the use of auto QoS in an IP
Telephony solution. The scenario is as follows. Centralised call
manager and remote branches with IP phones. Locations, regions etc.
All working fine. At remote branches we have a voice gateway with a
trunk to the local lan switch (two subinterfaces - one for data vlan
and one for voice vlan)



Currently at branches we use auto-QoS VoIP cisco-phone on all the 3560
series switchports connection to cisco phones and the same at HQ on
the 4500 series switches.



1.	I want to know what is recommended for the trunk interface on
the switch between the branch gateway and the lan switch on the 802.1Q
trunk and also on the router main / subinterfaces.
2.	Also what is recommended on switch ports connecting to the
Cisco Call Manager at HQ. Is it auto QoS VoIP trust ???



The auto QoS on the phone ports are working fine and I would prefer to
use auto-QoS for the additional links too where possible, excluding
the WAN links on the MPLS cloud where we have configured QoS manually.
Mainly because it is easier and consistent.







Erik Erasmus

Telkom SA

': +27 12 680 8320

*: +27 12 680 7388

*: +27 82 4106420

*:  erasmue4 at telkom.co.za



      





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