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QOS on 1861 and VG224 FXS Interfaces

I will be connecting a couple of 1861's...and also some VG224's to 2821 and 3825 routers. If i am plugging analog phones into the FXS ports on the 1861's and VG224's do they automatically mark the packets coming from the FXS interfaces as voice packets (EF) or do i need to do this manually?...if so i am not sure how i would because the interfaces are voice ports which i havent assigned ip addresses to...I would imagine that if i was using an IP phone instead of analogue i would be able to set the QOS on the phone itself so as to get end to end packet marking, but how does this happen with an analogue phone that has no QOS or IP capabilities?

Thanks and regards,

1 ACCEPTED SOLUTION

Accepted Solutions

Re: QOS on 1861 and VG224 FXS Interfaces

it sounds i cklicked twice on the post :)

anyway

just one note

the above policy should be apllied on the interface of the switch or router that connected to the VG

and add the following line to the

ip access-list extended call-signaling

permit tcp any any range 2000 2002

and good luck

4 REPLIES

Re: QOS on 1861 and VG224 FXS Interfaces

if u have voip dial peer point to ur CCM then u can make the marking through this dial peer

for example

dial-peer voice 1 voip

distination-patren [ccm ip]

codec g711ulaw

no vad

ip qos dscp ef media

ip qos dscp cs3 signaling

however what i sugest u is because u have the VG will be on one vlan which is the vlan that belongs to voice lets say vlan 20

so just creat an ACL that match all traffic coming fron that vlan for example the range will be like 10.1.1.0/24

so make somthing not exactly but similer to :

ip access-list extended call-signaling

permit tcp any any range 1719 1720

permit tcp any any range 2428

ip access-list extended VVLAN

permit udp 10.1.1.0 0.0.0.255 any range 16384 32767

class-map match-all VVLAN-VOICE

match access-group VVLAN

class VVLAN-CALL-SIGNALING

match access-group call-signaling

policy-map VG-marking

class VVLAN-VOICE

set ip dscp 46

class VVLAN-CALL-SIGNALING

set ip dscp 24

here the interface gos from the VG to the lan

interface [port number]

service-policy input VG-marking

u can chose from the above to ways which one suit u

good luck

please, if helpful Rate

Re: QOS on 1861 and VG224 FXS Interfaces

if u have voip dial peer point to ur CCM then u can make the marking through this dial peer

for example

dial-peer voice 1 voip

distination-patren [ccm ip]

codec g711ulaw

no vad

ip qos dscp ef media

ip qos dscp cs3 signaling

however what i sugest u is because u have the VG will be on one vlan which is the vlan that belongs to voice lets say vlan 20

so just creat an ACL that match all traffic coming fron that vlan for example the range will be like 10.1.1.0/24

so make somthing not exactly but similer to :

ip access-list extended call-signaling

permit tcp any any range 1719 1720

permit tcp any any range 2428

ip access-list extended VVLAN

permit udp 10.1.1.0 0.0.0.255 any range 16384 32767

class-map match-all VVLAN-VOICE

match access-group VVLAN

class VVLAN-CALL-SIGNALING

match access-group call-signaling

policy-map VG-marking

class VVLAN-VOICE

set ip dscp 46

class VVLAN-CALL-SIGNALING

set ip dscp 24

here the interface gos from the VG to the lan

interface [port number]

service-policy input VG-marking

u can chose from the above to ways which one suit u

good luck

please, if helpful Rate

Re: QOS on 1861 and VG224 FXS Interfaces

if u have voip dial peer point to ur CCM then u can make the marking through this dial peer

for example

dial-peer voice 1 voip

distination-patren [ccm ip]

codec g711ulaw

no vad

ip qos dscp ef media

ip qos dscp cs3 signaling

however what i sugest u is because u have the VG will be on one vlan which is the vlan that belongs to voice lets say vlan 20

so just creat an ACL that match all traffic coming fron that vlan for example the range will be like 10.1.1.0/24

so make somthing not exactly but similer to :

ip access-list extended call-signaling

permit tcp any any range 1719 1720

permit tcp any any range 2428

ip access-list extended VVLAN

permit udp 10.1.1.0 0.0.0.255 any range 16384 32767

class-map match-all VVLAN-VOICE

match access-group VVLAN

class VVLAN-CALL-SIGNALING

match access-group call-signaling

policy-map VG-marking

class VVLAN-VOICE

set ip dscp 46

class VVLAN-CALL-SIGNALING

set ip dscp 24

here the interface gos from the VG to the lan

interface [port number]

service-policy input VG-marking

u can chose from the above to ways which one suit u

good luck

please, if helpful Rate

Re: QOS on 1861 and VG224 FXS Interfaces

it sounds i cklicked twice on the post :)

anyway

just one note

the above policy should be apllied on the interface of the switch or router that connected to the VG

and add the following line to the

ip access-list extended call-signaling

permit tcp any any range 2000 2002

and good luck

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