This is a 2.74 KM link test between two AirMux 200/ODU/F58/EXT w/32 dB dishes performed on August 13, 2005.
Contents
Sites
Sites:
A.1 - MadisonJean 49.27314 -123.0067
- B.1 - BBY Mobile Node 49.25203 -122.987
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Testing methodology
- Link alignment at 12 Mbps, best -41 | -39
- Throughput test using 12 MB random data; overhead : Ethernet, IP, TCP, HTTP
- 6 rounds per set, one test each with and without 2xT1 TDM service
- Speeds tested: 48 Mbps, 36 Mbps, 12 Mbps (air speed)
For TDM/T1 testing we used a Cisco 3620 at MadisonJean on both T1 ports and the mobile node used a T1 cross over cable . Latencies on the T1 ports in this configuration are ~33 ms.
Rather than physically disconnect the TDM ports we unprovisioned TDM service using the AirMux management software as Ethernet bandwidth is decided at link installation time. Note that in our first 48 Mbps test we tested with TDM, with TDM provisioned but disconnected, and without TDM service.
Test 1 : 48 w/TDM (2xT1)
Expected Signal |
-44 |
Signal |
-48 | -46 |
Expected Ethernet w/2xT1 |
14.7 Mbps |
Test #1 |
8.8 Mbps |
Test #2 |
13.7 |
Test #3 |
14.4 |
Test #4 |
13.6 |
Test #5 |
13.2 |
Test #6 |
14.1 |
Test 2 : 48 no TDM (provisioned, disconnected)
Expected Signal |
-44 |
Signal |
-48 | -46 |
Expected Ethernet |
18 Mbps |
Test #1 |
13.1 Mbps |
Test #2 |
14.0 Mbps |
Test #3 |
13.7 Mbps |
Test #4 |
13.6 Mbps |
Test #5 |
11.2 Mbps |
Test #6 |
14.1 Mbps |
Test 3 : 48 no TDM
Expected Signal |
-44 |
Signal |
-48 | -46 |
Expected Ethernet |
18 Mbps |
Test #1 |
13.6 Mbps |
Test #2 |
13.6 Mbps |
Test #3 |
13.7 Mbps |
Test #4 |
13.7 Mbps |
Test #5 |
13.6 Mbps |
Test #6 |
14.5 Mbps |
Test 4 : 36 w/TDM (2xT1)
Expected Signal |
-40 |
Signal |
-43 | -42 |
Expected Throughput |
10.1 Mbps |
Test Round #1 |
12.1 Mbps |
Test #2 |
13.2 Mbps |
Test #3 |
13.6 Mbps |
Test #4 |
13.6 Mbps |
Test #5 |
13.3 Mbps |
Test #6 |
13.9 Mbps |
Test 5 : 36 no TDM
Expected Signal |
-40 |
Signal |
-43 | -41 |
Expected Throughput |
13.4 Mbps |
Test #1 |
13.7 Mbps |
Test #2 |
12.9 Mbps |
Test #3 |
14.0 Mbps |
Test #4 |
13.6 Mbps |
Test #5 |
13.7 Mbps |
Test #6 |
14.1 Mbps |
Test 6 : 12 no TDM
Expected Signal |
-39 dBm |
Signal |
-41 | -39 |
Expected Throughput |
4.2 Mbps |
Test #1 |
3.6 Mbps |
Test #2 |
4.2 Mbps |
Test #3 |
3.5 Mbps |
Test #4 |
3.6 Mbps |
Test #5 |
3.5 Mbps |
Test #6 |
3.6 Mbps |
Test 7 : 12 w/TDM (2xT1)
Expected Signal |
-39 dBm |
Signal |
-41 | -39 |
Expected Throughput |
0.9 Mbps |
Test #1 |
806.1 Kbps |
Test #2 |
775.4 Kbps |
Test #3 |
801.7 Kbps |
Test #4 |
800.7 Kbps |
Test #5 |
794.6 Kbps |
Test #6 |
850.0 Kbps |
