Customer Network Assessment - Packet8

---------
Customer Network Assessment
Network Tests
Version 2.0
Revision 1.1
Version 2.0
Contents
Important Notes for all Tests ............................................................................................................ 1
Tests and Success Criteria .................................................................................................................. 1
Symptoms and Issues........................................................................................................................... 2
VoIP Test .................................................................................................................................................. 3
Ping and MTR Tests .............................................................................................................................. 7
Network Diagnostics ............................................................................................................................ 9
Network Monitoring ........................................................................................................................... 12
Version 2.0
8x8, Inc
Network Test Instructions
Important Notes for all Tests
The computer running the test software:
 Must be physically connected through Ethernet cable to the LAN switch or router carrying the
voice traffic – the same LAN (subnet) as the Virtual Office device:
o Hard phones may use separate network (voice vs. data).
o Soft phones are using data network.
 Must have Wi-Fi disabled.
 Test the network during busy business hours to ensure there is load on customer’s network.
Tests and Success Criteria
Few spikes are tolerable, however any consistent packet loss, jitter or latency outside of given limits is
an indication of an underlying issue on the network; and the issue in that case needs to be addressed
and resolved before it becomes a problem some time later when VoIP services are used in live
operation.
If any of the test results are outside of Success Criteria limits, the corresponding risks need to be
identified in the official 8x8 SRDD document.
Test
Data Center
“Pass” Success Criteria
VoIP Test
US West DC only
MOS
Excellent: 4.0 or more
Good: 3.0 to 4.0
Ping Test
Any
Packets Loss
0%
Round Trip Time
< 100ms
MTR Test
Any
Packets Loss
0%
Network Diagnostics
Select data center
from settings
Packets Loss
0%
Jitter
< 20ms
Latency
< 100ms
IP Fragmentation
OK
DNS
OK
Packets Loss
0%
Jitter
< 20ms
Latency
< 100ms
Network Monitoring
Select data center
from settings
1
Version 2.0
8x8, Inc
Network Test Instructions
Symptoms and Issues
The following are some symptoms and issues that may arise due to un-optimized network configuration
and/or insufficient bandwidth.
Dropped calls: Calls may drop because of carrier related routing issues, but more often, calls drop
because of packet loss related to failing or misconfigured network appliances. Insufficient
bandwidth or other ISP related issues also might cause this. The VoIP test will help determine if
this is a network/ISP issue or carrier related issue on our side.
Choppiness and garbled audio: These symptoms usually are related to firewall configuration or ISP
connection issues. High packet loss and latency are often the culprits. 8x8 VoIP test can help
determine if the customer’s network and internet connection is adequate for use with VoIP.
Robot or underwater sound: Firewall configuration and ISP issues can also cause these issues. VoIP
test will confirm that there is a problem with the customer’s network or WAN connection.
Echo and delay: Firewall issues and poor QoS configuration can cause this. VoIP test will test the
customer’s network and WAN connection for excessive latency, packet lo ss, and jitter.
Activation issues: An extension that has already been activated, but still says activate on the
screen may be having issues traversing a NAT firewall. A poor 8x8 VoIP test will often indicate if a
firewall is not configured properly.
2
Version 2.0
8x8, Inc
Network Test Instructions
VoIP Test
The 8x8 VoIP Tool simulates 8x8 VoIP calls delivered over a customer’s Internet connection and tests
simultaneous call load. The test will indicate the level of service that the 8x8 system can be expected to
deliver based on the bandwidth and performance speed of the customer’s Internet connection.
The tool tests for tolerable ranges against four thresholds and displays satisfactory results as a green
light:
1. Download Speed – insufficient speed may impact inbound traffic, including the ability to hear
callers
2. Upload Speed – insufficient upload speed may impact outbound traffic, including the ability for
callers to hear you
3. Jitter – measures the constant flow of data. A low jitter value shows a more consistent flow
4. Packet loss – measures Internet connectivity and how accurately it is transferring data. Zero
percent packet-loss is desired for a high-quality VoIP connection
In addition, MOS (Mean Opinion Score) is reported as part of the results summary. MOS measures the
quality of the connection on a 5-point scale; higher numbers indicate a better quality connection.
HOW TO RUN VOIP TEST
Step 1: Test 2 lines
1. Enter http://voiptest.8x8.com in a web browser, which will open the test utility.
2. Enter initial Test Parameters:
Always start by simulating only 2 calls using default values
a. Number of VoIP Lines = 2
b. Test length = 15 seconds
c. Codec = G711
3. Click Apply and Test, then Click to Start Test.
4. Wait for test to complete – Summary tab will display.
5. Connection Summary displays results as four colored lights:
a. Yellow or red = issues to investigate
Congestion or inadequate bandwidth will affect service. Possible solutions:
 Upgrade or increase existing bandwidth.
 Install or upgrade LAN equipment, such as a properly configured router and/or
modem.
b. Green = clean results
Step 2: Increase load
1. Enter new Test Parameters based on customer’s needs:
a. Increase the number of lines (up to 50)
3
Version 2.0
8x8, Inc
Network Test Instructions
b. Test length = 15 seconds
c. CODEC = G711
2. Click Apply and Test, then Click to Start Test.
3. Wait for test to complete – Summary tab will display:
a. Red lights = issues to investigate: based on the number of simultaneous calls, there is
congestion or not enough bandwidth for 8x8 service.
i. Reduce the number lines in the “Number of VoIP lines” field to find the realistic
number of calls the customer’s network can support.
ii. You may need to advise the customer to upgrade / increase the existing
bandwidth.
iii. Try running the test after hours: clean result after hours may indicate
congestion or improper QoS on the customer’s network.
iv. A temporary network condition could affect results. Run the test at multiple
times during the course of the day and week to ensure you get a true
representation of your network and different periods of time during the course
of your business activities.
4. Capture test results:
a. Click Advanced tab (see screenshot above. You may first need to click on small arrow in
upper left corner).
i. Click the View Text link on the bottom.
ii. Take a screenshot of the results (see sample below):
4
Version 2.0
8x8, Inc
Network Test Instructions
b. Click Graph tab:
i. Click the Detailed Analysis link on the bottom.
ii. Take a screenshot of the results (see sample below)
 You may need to scroll down and capture several screenshots.
 At a minimum, capture the Summary section.
5
Version 2.0
8x8, Inc
Network Test Instructions
5. Send test results (including all screenshots) via email to your 8x8 representative.
6
Version 2.0
8x8, Inc
Network Test Instructions
Ping and MTR Tests
1. Open individual instances of MTR for each 8x8 Data Center:
a. WinMTR (for Windows; install from http://winmtr.net/download-winmtr/)
b. MTR for Mac (for OS X; install from ftp://ftp.bitwizard.nl/mtr/ or
http://kb.site5.com/networking/mtr-for-mac/)
c. Alternative to MTR: Ping Plotter
2. Open individual command shells for Ping for each 8x8 Data Center:
a. Windows: Start > All Programs > Accessories > Command Prompt
 Use “ping” command with “-t” option for continuous ping
b. Mac: Finder > Go > Application > Utilities > Terminal or Network Utility
3. Run all Ping and MTR instances for 30 minutes to 8x8 IP subnets of interest:
a.
US West data center: 192.84.16.3
b.
US East data center: 8.28.0.2
c.
UK data center: 217.163.57.2
d.
Hong Kong: 103.252.162.2
e.
Australia: 103.239.164.2
4. Capture test results:
a. Ping – capture text or screenshot showing:
b. WinMTR: click on the Export TEXT button; select a name and location for the Text
file; click Save:
7
Version 2.0
8x8, Inc
Network Test Instructions
c. MTR for Mac: take a screenshot including MTR results
5. Send test results (including all screenshots) via email to your 8x8 representative.
8
Version 2.0
8x8, Inc
Network Test Instructions
Network Diagnostics
Network Diagnostics and Monitoring tests perform a more thorough test of the connection's ability to
carry voice traffic. Ideally, these tools should be installed on a PC with minimal load, which will remain
undisturbed for the duration of testing. Please disable any firewall software that may be running on the
testing PC. Complete the diagnostics test before running the monitoring tool as running both at the
same time may skew the results.
1. Go to https://www.8x8.com/support/business-support/downloads
2. Navigate to Network Diagnostics Tool, then Download Software.
3. Install Network Diagnostics Tool on your computer.
4. Run Network Diagnostics Tool.
5. Select Configure Tests button.
9
Version 2.0
8x8, Inc
Network Test Instructions
6. Enter the contact information in Company Details tab.
7. Select Quick Tests tab and select the data center you are the closest to and click Apply.
8. The test can be run with the default settings.
10
Version 2.0
8x8, Inc
Network Test Instructions
9. Select Run Quick Tests, which will automatically start the test.
a. Click the Show Details link on the lower right if you would like to check the progress.
10. The tool completes a series of tests in only a few minutes. Once complete:
b. Select the Generate Report button.
c. A new window comes up which lets you save the report to a file.
11. Save this file and provide to your 8x8 representative.
11
Version 2.0
8x8, Inc
Network Test Instructions
Network Monitoring
Network Diagnostics and Monitoring tests perform a more thorough test of the connection's ability to
carry voice traffic. Ideally, these tools should be installed on a PC with minimal load, which will remain
undisturbed for the duration of testing. Please disable any firewall software that may be running on the
testing PC. Complete the diagnostics test before running the monitoring tool as running both at the
same time may skew the results.
1. Prior to using this tool, ask for the activation key from your 8x8 technical contact.
2. Go to https://www.8x8.com/support/business-support/downloads
3. Navigate to Network Monitoring Tool, then click Download Software.
4. Install Network Monitoring Tool on your computer.
5. Run Network Monitoring Tool.
6. Select Test > Settings menu item, then on Setup Tests tab:
a. Select the data center closer to you.
b. Make test call every 1 minute.
c. Set test call duration to 55 seconds.
12
Version 2.0
8x8, Inc
Network Test Instructions
d. Set Codec to G.711
7. In Test > Settings, select Company Details tab:
a. Click Update Registration Details to enter activation Key and your contact information.
b. Click Update, then OK when done.
8. Click Start Monitoring from the main screen of the tool.
a. Enter the key provided by the Sales Engineering team
9. Allow the tool to run and collect data for at least 24 hours.
10. To stop the test, select Stop Monitoring.
11. Select File > Generate Report menu item to generate report file.
12. Save this file and provide to your 8x8 representative.
13
Version 2.0