Subject: Re: snapshot
To: Space Case <wormey@eskimo.com>
From: Henry B. Hotz <hotz@jpl.nasa.gov>
List: port-mac68k
Date: 02/25/1998 11:34:34
At 5:01 PM -0800 2/24/98, Space Case wrote:
> 7 sl-gw8-stk-0-0.sprintlink.net (144.228.40.14) 65.480 ms 57.647 ms
>68.540 ms
> 8 * sl-gw8-stk-0-0.sprintlink.net (144.228.40.14) 70.097 ms *
> 9 sl-eskimo-2-0-T1.sprintlink.net (144.228.144.186) 122.088 ms 93.836
>ms 104.519 ms
>
>
>Sometimes I get even more *'s than that... Notice that 7 and 8 are answered
>by the same machine; not all the traces do that.
>
>Here's another:
>
> 7 sl-bb11-stk-4-2-155M.sprintlink.net (144.232.4.69) 65.396 ms 37.435
>ms 46.212 ms
> 8 * sl-bb7-stk-4-0-0.sprintlink.net (144.232.4.26) 72.449 ms 56.411 ms
> 9 sl-bb6-dc-1-1-0-T3.sprintlink.net (144.228.10.1) 156.824 ms 233.618
>ms 152.578 ms
>10 * sl-gw1-dc-0-0.sprintlink.net (144.228.20.3) 124.097 ms 163.114 ms
>11 * sl-vwan-1-0-T3.sprintlink.net (144.228.77.226) 167.276 ms 166.381 ms
I would interpret this as an internal sprintlink problem. Going from 70 to
120+ms on a single hop (50 ms for that leg!) inside a backbone provider
like them looks pretty fishy. That exceeds the delay you get from a modem.
Signature failed Preliminary Design Review.
Feasibility of a new signature is currently being evaluated.
h.b.hotz@jpl.nasa.gov, or hbhotz@oxy.edu