Hello,
I use low bit rate satellite channel with 200kbps in downstream and 70kbps in upstream.
network: LAN<->(Eth)Cisco(Eth)<->SatModem<---200/70kbps--->SatModem<->Ethernet Switch<->VoIP Gateway & PC
What kind of policy I have to use on Cisco to give the maximum priority to voice and minimum priority to data ? I tried to use CBWFQ but the voice quality was decrease then the data starts at maximum speed. Now i use rate-limit, voice quality is normal but the data speed is jumping from minimum to maximum (due to of rate-limit i think).
Here is my CBWFQ config:
class-map match-all VOICE_BACK
match access-group 101
class-map match-all VOICE
match access-group 100
!
!
policy-map VOICE_BACK
class VOICE_BACK
priority 55
class class-default
fair-queue
policy-map VOICE
class VOICE
priority 55
class class-default
fair-queue
!
interface Ethernet0
ip address 192.168.89.1 255.255.255.192
service-policy output VOICE
load-interval 30
!
interface Ethernet1
ip address 192.168.76.3 255.255.255.0
service-policy output VOICE_BACK
load-interval 30
duplex auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.76.1
!
no ip http server
no ip http secure-server
!
access-list 100 permit udp any host 192.168.89.4
access-list 101 permit udp host 192.168.89.4 any
access-list 102 permit ip any 192.168.89.0 0.0.0.63
access-list 103 permit ip host 192.168.11.206 host 192.168.89.4
So please give me an advice what kind of policy I have to use.