Questions tagged [jitter]
The jitter tag has no usage guidance.
16
questions
6
votes
2
answers
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Causes of RTP jitter at the server
Investigating some call quality issues (0.5 – 1 second dead spots in calls) I took a packet capture of a phone call between two extensions on the same PBX. Since I was capturing from the PBX, I was ...
4
votes
4
answers
26k
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What are good and bad jitter times for a LAN
Ive just ran jperf (frontend to iperf) on our network between 2 workstations, its recorded jitter between 0.033ms and 0.048ms. Is this good or bad? Are there more variables that i would need to ...
3
votes
3
answers
4k
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What's the best way to track Jitter and Packetloss
I need to track Jitter and Packet Loss over a MPLS line. What's the most accurate way to capture this information without interfering with the data being sent back and forth?
Is SmokePing the best ...
2
votes
0
answers
113
views
Network sensor for a TCP connection for collecting statistics each second [closed]
I need a Network Sensor capable to gather basic end-to-end statistics (packet loss, jitter and network delay/RTT) of several TCP connections directed to the very same destination (ip-addr:port) on ...
1
vote
2
answers
2k
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Can I use pfsense or m0n0wall to simulate packet loss and jitter?
Can I use pfsense or m0n0wall to simulate WAN-like packet loss, jitter, duplication, and reordering?
I see questions looking for dedicated solutions like:
What tool(s) can I use to simulate a WAN for ...
1
vote
1
answer
882
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Asterisk JITTERBUFFER function details
Asterisk v15 documentation states that JITTERBUFFER function is used to "add a Jitterbuffer to the Read side of the channel". Take this dialplan example:
[from-pstn]
exten => 1234,1,Set(...
1
vote
0
answers
164
views
asp.net jit multiple core slow
Using IIS I'm Running Asp.net 4.5 and trying to find a way to improve jit times on a machine multiple(8) cores. The test I use is timing 100 different pages. The machine i'm testing all this on is 4 ...
1
vote
0
answers
1k
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iperf - first packet loss and acceptable jitter
I'm using iperf to test the bandwidth on my network. I have a few questions:
1. I'm running this command on the client: "iperft -c -u -b 400m" and it successfully runs. I'm running the command ...
0
votes
1
answer
87
views
Ping performance improves during iPerf3 network congestion test
I am beginning to learn about networking and testing network performance (specifically on containers). I am trying to learn how to perform good network tests to see networking capabilities of docker ...
0
votes
1
answer
4k
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unpredictable high ntp jitter from single local GPS clock source
Question
How can I fix transient, high NTP jitter?
Background information
I have an NTP server on my private network. My servers synchronize from this clock, and usually all is well. An example set ...
0
votes
1
answer
720
views
What is the pertinence of Packet Delay Variation (Jitter) for network administration?
There are several means and ways to calculate the Packet Delay Variation (PDV or jitter), there's a RFC, and several definitions in various tools around these notions. Also, several delays can be ...
0
votes
1
answer
46
views
Which values for Netem to emulate WAN?
I am developing a distributed application, which I'm currently running on a cluster of Ubuntu VMs over LAN. I'd like to evaluate the performance of my application over WAN. So I decided to use Netem ...
0
votes
0
answers
40
views
Skype Laggs on Wifi
The Problem is that when i do a skype call on wifi, it laggs and the voice is ticked.
I have got a 100/100Mbit Internet connection, with a Sophos sg-135u Firewall/Router and 5 Sophos AP 55 Access ...
0
votes
1
answer
1k
views
Asterisk PJSIP Jitter Buffer
I'm currently using FreePBX which has GUI settings to set Jitter Buffer for SIP, but not PJSIP.
We have around 90 remote extensions using PJSIP and i would like to enable the Jitter Buffer for all as ...
0
votes
1
answer
255
views
How does buffering work in a chain of Asterisk servers?
I have two Asterisk servers in a chain like this:
SIP client (G.729) <-SIP-> Asterisk 1 (converting G.729 to G.711) <-IAX2-> Asterisk 2 -> terminated to analog line.
When no buffering was ...
0
votes
1
answer
250
views
IP SLA: tcpConnect frequency and jitter codec
I am trying to generate different kinds of traffic with IP SLA on a c7200 router, I am using the simulation software GNS, so if required I can change my router.
My aim is to generate congestion to ...