10-11-2002 05:10 AM - edited 03-12-2019 09:08 PM
We have two 1750-4V routers with 4 E&M ports (two VIC) each to do LAN to LAN and VoIP between two PBX .
The routers are connected by a 128kbps leased line.
The routers are running IOS 12.0(5)XQ.
The VoIP quality was good for two years untill we had a VIC failure (the router does not still see it and bot leds stay on red lights)
We changed the VIC but the bad voice quality persists.
Sometimes the voice calls result with a lot of drops like if there are jitter problems.
We tried increasing the voip bandwidth an reducing the fragment delay but without results even without data pachets travelling on leased line.
Ios 12.0(5)XQ on 1750 does not have commands to control play-out delay jitter buffer.
After a lot of tests we changed the second VIC on the same router that had the firts failure and the problem disappear.
The router does not show "anything we know" about a failure.
Is there a way to have a log about a HW failure of that kind ?
De-jitter buffers are on board of VIC E&M cards ?
10-15-2002 06:58 AM
I'm fairly certain that the de-jitter buffers are in the memory of the IOS not the card itself. With that being said, couple of thoughts, 12.0.5 is a fairly old version of code from a voice standpoint. You could have gotten a VIC that has new firmware or perhaps a different component or two that could have given you the results. As far as troubleshooting a "show call active voice" when an active call was going on might have shown you something.
Rick
10-16-2002 12:54 AM
Hi Rick
I send two samples of "show call active voice" during two voip conversations, each sample for both sides of the conversation.
For both samples the routers configurations were always the same and there was no data traffic on the leased line, just voip.
The first is for the old E&M VIC and the voip quality was bad.
The second is for the new E&M VIC and the voip quality was good.
If you can see something wrong in that outputs or something that could show a failure, that could be helpfull, I will appreciate.
Thanks, best regards
FIRST SAMPLE (BAD)
arz1750voip#sh call active voice
GENERIC:
SetupTime=14563490 ms
Index=1
PeerAddress=+32...
PeerSubAddress=
PeerId=32
PeerIfIndex=8
LogicalIfIndex=6
ConnectTime=14564659
CallState=4
CallOrigin=2
ChargedUnits=0
InfoType=2
TransmitPackets=435
TransmitBytes=-19404
ReceivePackets=2342
ReceiveBytes=74944
TELE:
ConnectionId=[0xB0599CD2 0x65C00107 0x0 0x8AE3654]
TxDuration=46930 ms
VoiceTxDuration=46840 ms
CoderTypeRate=g729r8
NoiseLevel=-11
ACOMLevel=20
OutSignalLevel=-70
InSignalLevel=-13
InfoActivity=2
ERLLevel=20
SessionTarget=
ImgPages=0
GENERIC:
SetupTime=14563490 ms
Index=2
PeerAddress=+22
PeerSubAddress=
PeerId=22
PeerIfIndex=10
LogicalIfIndex=0
ConnectTime=14564659
CallState=4
CallOrigin=1
ChargedUnits=0
InfoType=2
TransmitPackets=2391
TransmitBytes=47820
ReceivePackets=435
ReceiveBytes=8700
VOIP:
ConnectionId[0xB0599CD2 0x65C00107 0x0 0x8AE3654]
RemoteIPAddress=192.168.3.2
RemoteUDPPort=16424
RoundTripDelay=37 ms
SelectedQoS=best-effort
tx_DtmfRelay=inband-voice
SessionProtocol=cisco
SessionTarget=ipv4:192.168.3.2
OnTimeRvPlayout=8690
GapFillWithSilence=0 ms
GapFillWithPrediction=0 ms
GapFillWithInterpolation=0 ms
GapFillWithRedundancy=0 ms
HiWaterPlayoutDelay=70 ms
LoWaterPlayoutDelay=30 ms
ReceiveDelay=30 ms
LostPackets=0 ms
EarlyPackets=1 ms
LatePackets=0 ms
VAD = enabled
CoderTypeRate=g729r8
CodecBytes=20
SignalingType=cas
arz1750voip#
arz1750voip#
++++++++++++
vr1750voip#sh call active voice
GENERIC:
SetupTime=14565168 ms
Index=1
PeerAddress=
PeerSubAddress=
PeerId=0
PeerIfIndex=0
LogicalIfIndex=0
ConnectTime=14566329
CallState=4
CallOrigin=2
ChargedUnits=0
InfoType=2
TransmitPackets=597
TransmitBytes=11940
ReceivePackets=3955
ReceiveBytes=79100
VOIP:
ConnectionId[0xB0599CD2 0x65C00107 0x0 0x8AE3654]
RemoteIPAddress=192.168.3.1
RemoteUDPPort=16542
RoundTripDelay=38 ms
SelectedQoS=best-effort
tx_DtmfRelay=inband-voice
SessionProtocol=cisco
SessionTarget=
OnTimeRvPlayout=74540
GapFillWithSilence=0 ms
GapFillWithPrediction=0 ms
GapFillWithInterpolation=0 ms
GapFillWithRedundancy=0 ms
HiWaterPlayoutDelay=70 ms
LoWaterPlayoutDelay=37 ms
ReceiveDelay=37 ms
LostPackets=0 ms
EarlyPackets=1 ms
LatePackets=0 ms
VAD = enabled
CoderTypeRate=g729r8
CodecBytes=20
SignalingType=ext-signal
GENERIC:
SetupTime=14565169 ms
Index=1
PeerAddress=+22
PeerSubAddress=
PeerId=22
PeerIfIndex=10
LogicalIfIndex=6
ConnectTime=14566329
CallState=4
CallOrigin=1
ChargedUnits=0
InfoType=2
TransmitPackets=4008
TransmitBytes=72720
ReceivePackets=620
ReceiveBytes=19840
TELE:
ConnectionId=[0xB0599CD2 0x65C00107 0x0 0x8AE3654]
TxDuration=80510 ms
VoiceTxDuration=12400 ms
CoderTypeRate=g729r8
NoiseLevel=-65
ACOMLevel=12
OutSignalLevel=-27
InSignalLevel=-50
InfoActivity=2
ERLLevel=23
SessionTarget=
ImgPages=0
vr1750voip#
vr1750voip#
SECOND SAMPLE (GOOD)
arz1750voip#sh call active voice
GENERIC:
SetupTime=32181 ms
Index=1
PeerAddress=+32...
PeerSubAddress=
PeerId=32
PeerIfIndex=8
LogicalIfIndex=6
ConnectTime=32650
CallState=4
CallOrigin=2
ChargedUnits=0
InfoType=2
TransmitPackets=854
TransmitBytes=-11396
ReceivePackets=2373
ReceiveBytes=75936
TELE:
ConnectionId=[0x782A7483 0xF61F0007 0x0 0x4E918]
TxDuration=74540 ms
VoiceTxDuration=47460 ms
CoderTypeRate=g729r8
NoiseLevel=-56
ACOMLevel=0
OutSignalLevel=-71
InSignalLevel=-56
InfoActivity=2
ERLLevel=17
SessionTarget=
ImgPages=0
GENERIC:
SetupTime=32182 ms
Index=1
PeerAddress=+22
PeerSubAddress=
PeerId=22
PeerIfIndex=10
LogicalIfIndex=0
ConnectTime=32650
CallState=4
CallOrigin=1
ChargedUnits=0
InfoType=2
TransmitPackets=2373
TransmitBytes=47460
ReceivePackets=854
ReceiveBytes=17080
VOIP:
ConnectionId[0x782A7483 0xF61F0007 0x0 0x4E918]
RemoteIPAddress=192.168.3.2
RemoteUDPPort=16554
RoundTripDelay=35 ms
SelectedQoS=best-effort
tx_DtmfRelay=inband-voice
SessionProtocol=cisco
SessionTarget=ipv4:192.168.3.2
OnTimeRvPlayout=17070
GapFillWithSilence=0 ms
GapFillWithPrediction=0 ms
GapFillWithInterpolation=0 ms
GapFillWithRedundancy=0 ms
HiWaterPlayoutDelay=70 ms
LoWaterPlayoutDelay=30 ms
ReceiveDelay=30 ms
LostPackets=0 ms
EarlyPackets=1 ms
LatePackets=0 ms
VAD = enabled
CoderTypeRate=g729r8
CodecBytes=20
SignalingType=cas
arz1750voip#
+++++++++++++
vr1750voip#sh call active voice
GENERIC:
SetupTime=14847406 ms
Index=1
PeerAddress=
PeerSubAddress=
PeerId=0
PeerIfIndex=0
LogicalIfIndex=0
ConnectTime=14847867
CallState=4
CallOrigin=2
ChargedUnits=0
InfoType=2
TransmitPackets=937
TransmitBytes=18740
ReceivePackets=2701
ReceiveBytes=54020
VOIP:
ConnectionId[0x782A7483 0xF61F0007 0x0 0x4E918]
RemoteIPAddress=192.168.3.1
RemoteUDPPort=16578
RoundTripDelay=39 ms
SelectedQoS=best-effort
tx_DtmfRelay=inband-voice
SessionProtocol=cisco
SessionTarget=
OnTimeRvPlayout=51960
GapFillWithSilence=0 ms
GapFillWithPrediction=0 ms
GapFillWithInterpolation=0 ms
GapFillWithRedundancy=0 ms
HiWaterPlayoutDelay=70 ms
LoWaterPlayoutDelay=30 ms
ReceiveDelay=30 ms
LostPackets=0 ms
EarlyPackets=1 ms
LatePackets=0 ms
VAD = enabled
CoderTypeRate=g729r8
CodecBytes=20
SignalingType=ext-signal
GENERIC:
SetupTime=14847407 ms
Index=1
PeerAddress=+22
PeerSubAddress=
PeerId=22
PeerIfIndex=10
LogicalIfIndex=6
ConnectTime=14847867
CallState=4
CallOrigin=1
ChargedUnits=0
InfoType=2
TransmitPackets=2749
TransmitBytes=43460
ReceivePackets=960
ReceiveBytes=30720
TELE:
ConnectionId=[0x782A7483 0xF61F0007 0x0 0x4E918]
TxDuration=104820 ms
VoiceTxDuration=19200 ms
CoderTypeRate=g729r8
NoiseLevel=-60
ACOMLevel=4
OutSignalLevel=-42
InSignalLevel=-58
InfoActivity=2
ERLLevel=18
SessionTarget=
ImgPages=0
vr1750voip#
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