How many discarded packets is too much?

Posts: 7 · New Forum Member Joined: Jan 12, 2006 Posts: 7

I'm struggling to use my phone outside of midnight on Sundays. Here's my config:

1. Chicago IL
2. Comcast cable
3. Upload 359kbps and download 1775 kbps (from dslreports)
4. Linksys BEFCMU10 v3 cable modem
5. PAP2
6. Linksys BEFCMU10 v3 cable modem---->Linksys wrt54g wireless G router----> PAP2 and PC
7.wobbly calls on the caller's side - so much that we can't talk

A testyourvoip result while I couldn't use the phone this afternoon:
MOS
3.6 / 5.0

Degradation Sources
Codec
0.57 41.6%
Latency
0.00 0.0%
Packet Discards
0.69 50.0%
Packet Loss
0.11 8.3%

Codec G.711 (PCM at 64kbps,
20ms RTP payload,
80kbps IP BW)
Round-Trip
Latency 186 ms
Packet Discards 2.4%
Packet Loss 0.4%
Loss Periods Min: 20 ms
Avg: 20 ms
Max: 140 ms
Burst Loss

Jitter Min: 0 ms
Avg: 8 ms
Max: 180 ms

Signaling Quality
Post-Dial Delay 94 ms
Call Setup Time 110 ms
Media Delay 235 ms

MOS Analysis FROM the Target Location To You

Media Quality
MOS
4.2 / 5.0

Degradation Sources
Codec
0.57 68.1%
Latency
0.00 0.0%
Packet Discards
0.27 31.9%
Packet Loss
0.00 0.0%

Codec G.711 (PCM at 64kbps,
20ms RTP payload,
80kbps IP BW)
Round-Trip
Latency 186 ms
Packet Discards 1.8%
Packet Loss 0.0%
Loss Periods Min: 280 ms
Avg: 280 ms
Max: 280 ms
Burst Loss

Jitter Min: 4 ms
Avg: 6 ms
Max: 184 ms

Signaling Quality
Post-Pickup Delay 119 ms
Call Setup Time 128 ms
Media Delay 152 ms

Modem stats seem within normal since I moved the splitters (the High speed internet cable was on a second splitter. I moved it up to the top and the numbers went back to normal on the modem. I was able to make a phone call Sunday night before midnight, but today was unable again, even though the modem signal is about the same as it was after I moved it up on the connection.
Lock Status Operational
Modulation 256QAM
Channel ID 48
Symbol Rate 5360.537 Ksym/sec
Downstream Power -1.8 dBmV
SNR 35.0 dB
Lock Status Operational
Modulation QPSK
Channel ID 5
Symbol Rate 2560 Ksym/sec
Upstream Power 49.5 dBmV

Here are the pingplotter results this afternoon when I couldn't be heard on the phone:
Host Information
1,,-
2,,-
3, -------------- ,68.86.114.109
4, -------------- ,68.87.230.93
5, -------------- ,68.87.230.254
6, -------------- ,12.118.104.65
7,tbr1-p011801.cgcil.ip.att.net,12.123.6.58
8,ggr2-p300.cgcil.ip.att.net,12.123.6.33
9,so-9-1.car4.Chicago1.Level3.net,4.68.127.165
10,ae-22-52.car2.Chicago1.Level3.net,4.68.101.163
11, -------------- ,4.79.66.150
12, -------------- ,72.14.232.57
13, -------------- ,64.233.175.42
14, -------------- ,64.233.167.99

Sample Information
"1/17/2006 4:59:48 PM",*,*,14,22,15,19,40,37,39,147,57,83,106,91
"1/17/2006 4:59:51 PM",*,*,13,19,13,17,20,17,18,20,18,20,N/A,24
"1/17/2006 4:59:53 PM",*,*,14,13,14,35,*,18,17,19,17,20,39,18
"1/17/2006 4:59:56 PM",*,*,16,17,17,17,21,18,18,19,18,20,N/A,20
"1/17/2006 4:59:58 PM",*,*,15,15,18,28,19,19,19,22,19,21,N/A,21
"1/17/2006 5:00:01 PM",*,*,22,30,18,17,19,17,21,18,19,18,26,20
"1/17/2006 5:00:03 PM",*,*,14,14,16,17,20,19,18,20,17,22,N/A,19
"1/17/2006 5:00:06 PM",*,*,14,34,16,16,19,17,20,17,16,18,17,18
"1/17/2006 5:00:08 PM",*,*,41,*,15,19,19,18,19,18,18,19,28,20
"1/17/2006 5:00:11 PM",*,*,16,13,16,16,21,18,19,18,16,18,N/A,24
"1/17/2006 5:00:13 PM",*,*,14,14,14,16,19,24,17,26,20,18,N/A,20
"1/17/2006 5:00:16 PM",*,*,13,16,14,16,18,16,17,30,35,*,29,21
"1/17/2006 5:00:18 PM",*,*,14,15,15,17,20,17,18,26,23,19,N/A,19
"1/17/2006 5:00:21 PM",*,*,16,14,17,18,30,18,19,33,18,18,N/A,20
"1/17/2006 5:00:23 PM",*,*,15,16,14,16,20,17,18,27,20,19,N/A,25
"1/17/2006 5:00:26 PM",*,*,17,33,15,18,17,18,186,26,19,20,N/A,20
"1/17/2006 5:00:28 PM",*,*,15,14,17,19,18,19,17,21,17,23,N/A,19
"1/17/2006 5:00:31 PM",*,*,17,15,15,18,20,17,19,39,*,19,43,21
"1/17/2006 5:00:33 PM",*,*,13,13,14,16,22,17,18,17,31,21,N/A,25
"1/17/2006 5:00:36 PM",*,*,17,15,15,17,19,17,20,18,18,26,N/A,20
"1/17/2006 5:00:38 PM",*,*,13,13,14,16,22,18,18,22,19,20,N/A,21
"1/17/2006 5:00:41 PM",*,*,14,14,16,17,20,20,21,18,22,20,N/A,19
"1/17/2006 5:00:43 PM",*,*,13,16,16,17,18,19,20,18,17,20,N/A,21
"1/17/2006 5:00:46 PM",*,*,17,16,15,17,22,19,20,19,22,21,23,29
"1/17/2006 5:00:48 PM",*,*,14,15,14,16,17,17,26,22,19,23,N/A,20
"1/17/2006 5:00:51 PM",*,*,15,15,15,17,24,17,20,*,18,19,31,18
"1/17/2006 5:00:53 PM",*,*,13,23,14,15,25,18,20,23,19,18,N/A,20
"1/17/2006 5:00:56 PM",*,*,15,14,34,*,20,17,18,42,*,24,N/A,24
"1/17/2006 5:00:58 PM",*,*,13,18,17,39,*,18,19,19,19,20,N/A,22
"1/17/2006 5:01:01 PM",*,*,16,14,16,17,23,16,17,17,17,22,N/A,18
"1/17/2006 5:01:03 PM",*,*,15,15,16,17,20,18,19,20,19,20,22,20
"1/17/2006 5:01:06 PM",*,*,15,13,15,18,21,16,22,20,17,21,N/A,19
"1/17/2006 5:01:08 PM",*,*,14,14,15,17,20,17,19,19,20,22,N/A,20
"1/17/2006 5:01:11 PM",*,*,13,37,*,18,18,15,18,20,19,18,N/A,19
"1/17/2006 5:01:13 PM",*,*,18,16,15,18,19,17,22,23,20,19,N/A,19
"1/17/2006 5:01:16 PM",*,*,33,13,38,*,20,20,22,21,21,21,N/A,19
"1/17/2006 5:01:18 PM",*,*,15,14,15,19,19,17,19,19,18,20,N/A,19
"1/17/2006 5:01:21 PM",*,*,15,15,15,27,17,17,21,19,25,20,N/A,20
"1/17/2006 5:01:23 PM",*,*,14,14,14,16,19,18,20,17,17,18,18,19
"1/17/2006 5:01:26 PM",*,*,15,15,18,22,19,18,49,*,19,20,N/A,20
"1/17/2006 5:01:28 PM",*,*,13,16,15,16,20,18,202,20,20,18,N/A,42
"1/17/2006 5:01:31 PM",*,*,14,15,15,18,19,18,18,38,*,22,N/A,22
"1/17/2006 5:01:33 PM",*,*,15,16,13,15,17,18,17,17,19,21,N/A,20
"1/17/2006 5:01:36 PM",*,*,14,17,16,16,20,17,21,18,20,20,N/A,19
"1/17/2006 5:01:38 PM",*,*,18,15,13,17,17,18,19,21,20,30,19,20
"1/17/2006 5:01:41 PM",*,*,15,14,15,16,19,17,18,17,22,19,N/A,19
"1/17/2006 5:01:43 PM",*,*,15,16,37,*,19,17,21,18,18,19,N/A,20
"1/17/2006 5:01:46 PM",*,*,17,13,19,21,18,16,21,17,26,*,N/A,28
"1/17/2006 5:01:48 PM",*,*,17,15,15,20,19,21,18,40,*,21,N/A,25
"1/17/2006 5:01:51 PM",*,*,15,18,14,16,19,19,20,17,17,19,N/A,19
"1/17/2006 5:01:53 PM",*,*,17,15,15,17,24,24,19,180,19,29,22,22
"1/17/2006 5:01:56 PM",*,*,13,18,39,*,17,17,17,18,16,25,N/A,21
"1/17/2006 5:01:58 PM",*,*,25,14,15,18,20,21,19,17,17,22,N/A,19
"1/17/2006 5:02:01 PM",*,*,15,18,18,18,23,17,18,18,19,20,N/A,21
"1/17/2006 5:02:03 PM",*,*,14,22,33,*,18,19,19,22,17,21,19,19

And just for good measure, tracert results to same site seem to be able to report on the router and modem

tracert www.google.com

Tracing route to www.l.google.com [64.233.167.104]
over a maximum of 30 hops:

1 3 ms 2 ms 2 ms 64.233.167.104
2 * * * Request timed out.
3 10 ms 11 ms 9 ms 68.86.114.109
4 11 ms 9 ms 11 ms 68.87.230.93
5 13 ms 10 ms 9 ms 68.87.230.254
6 13 ms 11 ms 12 ms 12.118.104.65
7 15 ms 15 ms 14 ms tbr2-p011801.cgcil.ip.att.net [12.123.6.62]
8 14 ms 30 ms 21 ms ggr2-p390.cgcil.ip.att.net [12.123.6.37]
9 14 ms 14 ms 14 ms so-9-1.car4.Chicago1.Level3.net [4.68.127.165]
10 13 ms 15 ms 15 ms ae-22-52.car2.Chicago1.Level3.net [4.68.101.163]

11 13 ms 14 ms 14 ms 4.79.66.138
12 16 ms 20 ms 14 ms 72.14.232.57
13 26 ms 23 ms 16 ms 64.233.175.42
14 16 ms 15 ms 14 ms 64.233.167.104

Trace complete.

Questions: Is it normal to see errors on the first two hops for pingplotter (my router and modem)
Is it normal to see a timeout on the modem on tracert?
Are discarded packets outside the boundaries of normal?
My modem is docsis 1.1. I just bought it a few months ago. Will replacing it help?
What should I do next? I am not sure I understand the suggestions to slow down the packets.

thanks...

Posts: 423 · Vonage Forum Evangelist Joined: Oct 03, 2005 Posts: 423

he made me do it