[asterisk-users] Setting QOS settings in asterisk and/or CentOS?

Redouane Doumer
Thu, 21 Sep 2006 08:26:47 -0000

Hello,

For the Cisco QOS:

Based on a Cisco Router all you need is a simple access-list.

class-map match-any voip-class
    match ip rtp 10001 9999
    match access-group 150
!
!
policy-map voip-policy
    class voip-class
    priority xxx (in Kbits)

access-list 150 permit udp any any eq 5060
access-list 150 permit udp any any eq 4569

Voila!

Redouane

________________________________

De : BerkHolz, Steven [mailto:StevenBerkHolz@TESCOGroup.com]
Envoy? : jeudi 21 septembre 2006 15:33
? : asterisk-users@lists.digium.com
Objet : [asterisk-users] Setting QOS settings in asterisk and/or CentOS?


How would I go about setting the TOS bit to "RTP IP TOS Byte:  18
(hex)" for SIP and IAX traffic at the asterisk server?

Also,
Do you have a quick reference on how to configure a Cisco switch to prioritize
SIP traffic?
I check in various Cisco docs, and there are so many references, and none of
them seem to relate directly to using the TOS bit for QOS.

I am looking into using the TOS bit because that is the only method that my SIP
devices use. (Citel Handset Gateway)

ref:
QOS settings from Citel Handset Gateway:
Handset Gateway - QoS Configuration

IP Type of Service
RTP IP TOS Byte:  18 (hex)

Silence Suppression
Mute Mode: On, UDP keep-alive every 10 seconds
G.711 Voice Activity Detection: Off

Codec Preferences
G.711u: 1 (Highest priority)
G.711a: 2



Thank You,

Steven BerkHolz
- MCSA - MCSE -
Manager of Information Systems
TESCO Group Companies
Fax. 248-836-5101
www.TESCOGroup.com

Board member of
www.glimasoutheast.org


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