sundance-communications.com/forum Forums TDM Business Telephone Systems Vodavi Telephones & Systems XTS-IP Networking Issues.

Greetings,

We are experiencing issues with lost packets, cut-outs, and 1 way transmission on a Vertical XTS-IP.

Main Hub has centralized voicemail.

Node 1 & 2 are connected to Main hub via MPLS circuit.

MPLS is "supposedly" setup by CLEC with QoS priority by IP Address of the VoIB card at each location.

When data and voice are on the MPLS circuit between Node 2 and Main Hub, result; massive packet loss.

When data is removed from the equation, no issues reported.

-BUT-

At Node 1 to Main hub, there is no data on the MPLS circuit, and that location is still having lost packets. (Bear in mind: only 1 user was on the phone).

- We have worked for hours with Vertical and the CLEC, and still cannot come to a conclusion as to who to point the finger at.

Any trouble shooting tips or ideas, greatly welcomed.

Thanks!

Do you still have a firewall and router in each location? If so I would start there.

And also, is this a problem that just started or is this a fresh install and it never worked?

No firewall or routers. MPLS was connected directly to the VOIB12 and the LANB's at the remote sites.

I am looking for ideas to troubleshoot and determine if a VOIB/LANB card is bad, or if CLEC is to blame and they won't fess up.

I was thinking of using Wireshark to test the connections but Im afraid the hubs needed may impact the results.

This issue has been ongoing for about 3 months, since original date of install. But the customer had the MPLS circuit installed at the same time.

Thanks.

Are the VOIB and LANB's all at latest software rev?

When you say "Data", are you referring to Computer Data traffic? Is there both Computer and Telephone traffic on the MPLS Network? I'd take one computer/laptop and place it on the network located at your main hub. Configure it with a static iP. Take another computer/laptop and place it on the network at Node2. Configure it with a static IP as well.

Have one computer ping the other with the following DOS command:
Ping xxx.xxx.xxx.xxx -l yyy -t
(where xxx.xxx.xxx.xxx represents the static IP you are pinging. And, yyy represents how many bytes of data your packet size will be. This will provide you with a continuous ping to monitor, and allow you to control control the amount of data to get an idea of the frequency or data packet size that you are experiencing your loss.)

This should help rule out the CLEC and MPLS Provider. Hope that helps...