| |
On Thu, 14 Sep 2000, Dan Boger wrote:
> On Thu, Sep 14, 2000 at 12:47:51PM +0000, Carl Watson wrote:
> > > if this still doesn't solve your problem try (if you are running windows)
> > > on the command line ("command.com" on Win9X, or cmd.com on WinNT)
> > > ping www.ldraw.org
> >
> > I got this:
> >
> > "Reply from 193.10.252.210: TTL expired it transit."
> > "Approximate round trip time in mili-seconds - 0ms"
To be sure that you can eventually connect to it try:
ping -i 255 www.ldraw.org
That is to use the maximum TTL.
I tryed it and Got:
Reply from 130.226.51.217: bytes=32 time=240ms TTL=227
Which is very near the limit.
> we've seen this problem before... it seems that the ldraw.org site lives
> in the far depths of the internet. A lot of people seem to need more than
> 30 "hops" to get to it, and apparently, there's software out there that
> is just not patient enough. TTL expired" means that the packets "Time To
> Live" ended before they reached your computer.
In Fact the packet never reached www.ldraw.org, since the packet returned is Not
the same. Any of those packets can be lost the ongoing or the incomming,
dependes on which path is slower (they are not required to be the same).
Also it's Not required to be more than 30 Hops, its enough, if just one fo those
Hops is slow or having heavy traffic.
try connecting at different day/night hours, you may get to it then, when there
is less traffic.
> Does anyone have a good solution to this?
The problem can be solved, by having a faster pathway to the server.
This can be accomplished by using a faster link to the server, either in the
server or user side, a faster modem may do the trick, but don't cross your
fingers on it (try to borrow a faster modem and try it, if it works, buy one).
From the server side, a good solution is to find a better (faster) internet
provider.
A provider which as more powerfull(faster) routers/switches/bridges/hubs etc..
is a better option, since traffic will flow faster.
P.S.
you can try (in windows):
tracert -h 60 www.ldraw.org
or (in Unix)
traceroute -h 60 www.ldraw.org
to be able to determine how many hops you need to get there (first left
number on the last line). I Got 33.
See ya
Rui Martins
|
|
Message has 2 Replies:
 | | Re: www.ldraw.org
|
| (...) Oops, you got it backwards. TTL=1 is the limit, you start at 255 and each router (or seconds held by router) decrements the TTL by one before forwarding. If TTL=1 the packet is discarded. KL (24 years ago, 14-Sep-00, to lugnet.off-topic.geek)
|
Message is in Reply To:
12 Messages in This Thread:
 
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
