EVDO Latency

PK · EVDO Newbie Joined: 21 May 2006 Posts: 1

Hi I was just wondering, what is the typical latency you all are experiencing using EVDO, with Sprint and Verizon? I was just wondering how bad this is (i.e. will I ping 150ms+ to yahoo.com in san francisco/ los angeles?)

w6jjk · Posted: Mon May 22, 2006 1:07 am Post subject:

Hi PK, I'm currently using a S620 on Sprint around the Los Angeles Area.

Although I'm a user doing about 2-3GB a day, I don't do anything latency dependent or something intensive that requires low latency.

Here are some results of my pinging: Hope this helps.

>ping yahoo.com

Pinging yahoo.com [66.94.234.13] with 32 bytes of data:

Reply from 66.94.234.13: bytes=32 time=181ms TTL=49
Reply from 66.94.234.13: bytes=32 time=168ms TTL=49
Reply from 66.94.234.13: bytes=32 time=149ms TTL=49
Reply from 66.94.234.13: bytes=32 time=165ms TTL=49

Ping statistics for 66.94.234.13:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 149ms, Maximum = 181ms, Average = 165ms

>ping google.com

Pinging google.com [72.14.207.99] with 32 bytes of data:

Request timed out.
Reply from 72.14.207.99: bytes=32 time=231ms TTL=230
Reply from 72.14.207.99: bytes=32 time=242ms TTL=230
Request timed out.

Ping statistics for 72.14.207.99:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 231ms, Maximum = 242ms, Average = 236ms

>ping earthlink.net

Pinging earthlink.net [209.86.93.203] with 32 bytes of data:

Reply from 209.86.93.203: bytes=32 time=222ms TTL=232
Reply from 209.86.93.203: bytes=32 time=233ms TTL=232
Reply from 209.86.93.203: bytes=32 time=219ms TTL=232
Reply from 209.86.93.203: bytes=32 time=230ms TTL=232

Ping statistics for 209.86.93.203:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 219ms, Maximum = 233ms, Average = 226ms
_________________
Dell Inspiron 600m w/ Sprint Merlin S620

xenophon · EVDO Addict Joined: 30 Aug 2005 Posts: 2003

The typical best latency I've seen is about 150ms with EVDO Rev 0. The range is generally 150-400ms depending on conditions such as obstructions between you and tower.

There was a demonstration of EVDO Rev A at CTIA that showed about 80ms latency - best case is spec'd at 50ms.