Mitel Forums - The Unofficial Source
Mitel Forums => Mitel MiVoice Business/MCD/3300 => Topic started by: dporod on November 29, 2018, 02:46:41 PM
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Hi, can anyone explain the Voice Quality Statistics report? I don't understand how there can be a zero in the packet loss column but a 204 in the Packet Loss Max. Burst column.
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Last Report=No
This is only a snippet of the call, there was packet loss prior to this sample perhaps?
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For each call, there is 1 line for every 5000 packets.
I would expect the "Packet Loss" to show you the total number of packets lost out of that 5000.
The "Max Burst" should show you the longest sequence of lost packets - this is often a bunch of packets that is not received during the slight amount of time in between when one endpoint connects or disconnects and when the opposite endpoint does the same.
"Packet loss 1 Pkt" should show you the total number of single packet loss events (ie, where a lost packet was preceded AND succeeded by a non-lost packet).
The rest of the packet loss stats give you, per column, the number of times of 2-packets lost in sequence, 3 packets lost in sequence, etc...
(This is useful because the pattern of packet loss often hints at what problem might have caused it).
I think I agree with the OP.
The two columns we can see on the right add up to 302 packets lost, so the "Packet Loss" should show a minimum of "302", plus any other packets lost that we don't know about it because they aren't shown in the screen shot.
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I'm attaching a spreadsheet showing an entire call. I do not understand why there are discrepancies in the packet loss columns.
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Not which of these is the software version. I'm new to Mitel. We are working on QoS issues but I don't know if I can trust this report.
Release level: 8.0 SP3 PR2
Active software load: 14.0.3.37
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Does anyone rely on this report? It would be nice if I could as each phone is basically a data collector on the network. Is there a way to talk with Mitel directly? Really do not like this support model of having to go through a 3rd party.
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Does anyone rely on this report? It would be nice if I could as each phone is basically a data collector on the network. Is there a way to talk with Mitel directly? Really do not like this support model of having to go through a 3rd party.
Only for basic troubleshooting... For more indepth capturing of information, use Mitel's IP Phone Analyzer application. You set it up on a separate PC and add that PC's IP address to DHCP option 125, phones then report back to that PC running Mitel's software. It is actually a fantastic tool, but I haven't had a need for it in years.
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You can also web-browse to the phone itself and use its in-built troubleshooting tools.
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Only for basic troubleshooting... For more indepth capturing of information, use Mitel's IP Phone Analyzer application. You set it up on a separate PC and add that PC's IP address to DHCP option 125, phones then report back to that PC running Mitel's software. It is actually a fantastic tool, but I haven't had a need for it in years.
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Thank you, where you normally download the IP Phone Analyzer from? Mitel?
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You can also web-browse to the phone itself and use its in-built troubleshooting tools.
I tried http://10.5.44.75 and https://10.5.44.75 but just get an unable to connect browser message. Am I using the right url?
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Thank you, where you normally download the IP Phone Analyzer from? Mitel?
Yes... Software Download Center -> MiVoice Business
Sent from my Moto G (5) Plus using Tapatalk
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You can also web-browse to the phone itself and use its in-built troubleshooting tools.
I tried http://10.5.44.75 and https://10.5.44.75 but just get an unable to connect browser message. Am I using the right url?
Ensure to enable the Web UI from the MiVoice Business maintenance command line and add the
following commands:
• pd send <extension> enable_web
• pd send <extension> disable_web
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Thank you, where you normally download the IP Phone Analyzer from? Mitel?
Yes... Software Download Center -> MiVoice Business
Sent from my Moto G (5) Plus using Tapatalk
Hi, for the life of me I can't find the download site on mitel.com
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Thank you, where you normally download the IP Phone Analyzer from? Mitel?
Yes... Software Download Center -> MiVoice Business
Sent from my Moto G (5) Plus using Tapatalk
Hi, for the life of me I can't find the download site on mitel.com
You have to login to connect.mitel.com
You must be a vendor or certified technician.
Sent from my Moto G (5) Plus using Tapatalk
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On the other hand, if you are investigating "QoS issues", then this is pretty much out of the control of the phone system anyway, except for:
- the DHCP option given to the phone contains both Layer2 (CoS) and Layer3 (DSCP) values - make sure these are right.
- the controller similarly should have these same codes on it.
Anything else to do with QoS, you should be looking at the network: find the bottlenecks, ensure QoS is configured to prioritise the values the phones are using.
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Thank you, where you normally download the IP Phone Analyzer from? Mitel?
Yes... Software Download Center -> MiVoice Business
Sent from my Moto G (5) Plus using Tapatalk
Hi, for the life of me I can't find the download site on mitel.com
You have to login to connect.mitel.com
You must be a vendor or certified technician.
Sent from my Moto G (5) Plus using Tapatalk
Thanks for helping. I do appreciate it.
This is why I really l don't like this model of support. I'm a customer/owner/user and can't get access to the tools I want to use. What does it take to become a certified technician?
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On the other hand, if you are investigating "QoS issues", then this is pretty much out of the control of the phone system anyway, except for:
- the DHCP option given to the phone contains both Layer2 (CoS) and Layer3 (DSCP) values - make sure these are right.
- the controller similarly should have these same codes on it.
Anything else to do with QoS, you should be looking at the network: find the bottlenecks, ensure QoS is configured to prioritise the values the phones are using.
Oh we are working on the network:) Using the phones as probes and sending "QoS" measurements to the server with IP Phone Analyzer installed on it would help us do that work.
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Thanks for helping. I do appreciate it.
This is why I really l don't like this model of support. I'm a customer/owner/user and can't get access to the tools I want to use. What does it take to become a certified technician?
You must be sponsored by an authorized dealer, and go to the certification class and pass... Better to just get them to download it for you and give it to you.
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Thanks for helping. I do appreciate it.
This is why I really l don't like this model of support. I'm a customer/owner/user and can't get access to the tools I want to use. What does it take to become a certified technician?
You must be sponsored by an authorized dealer, and go to the certification class and pass... Better to just get them to download it for you and give it to you.
I'm not sure that the phone system stats are the most useful measurements. The phone system can't see how the packets are prioritised on the network.
On Cisco switches for example, after setting up each new site for one organisation, I recall my testing step included getting a call up site-to-site, recording subjective testing, then after hanging up doing a "show mls qos stats" on the switch on each site to see that the voice packets had been sent to the priority queue and the non-voice packets had been sent in queue 0.
Do you have a general description of the problem being experienced?
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Thanks for helping. I do appreciate it.
This is why I really l don't like this model of support. I'm a customer/owner/user and can't get access to the tools I want to use. What does it take to become a certified technician?
You must be sponsored by an authorized dealer, and go to the certification class and pass... Better to just get them to download it for you and give it to you.
I'm not sure that the phone system stats are the most useful measurements. The phone system can't see how the packets are prioritised on the network.
On Cisco switches for example, after setting up each new site for one organisation, I recall my testing step included getting a call up site-to-site, recording subjective testing, then after hanging up doing a "show mls qos stats" on the switch on each site to see that the voice packets had been sent to the priority queue and the non-voice packets had been sent in queue 0.
Do you have a general description of the problem being experienced?
We use the show mls qos stats command and it does show that the packets are being queued to the priority properly and not dropped by the switch.
However if the packet was "lost" after leaving the switch (such as a dirty fiber connection) this would not show up in the show mls qos stats. However it would be shown as missing by something keeping track of the packet stream, such as a phone. The phone then sends the stats to a logging device like the Mitel (Voice Quality Statistics report) or alternatively the IP Phone Analyzer server.
We do get drops on some calls. Some may be due to qos. Some may not.