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White vs. Amber (Orange) Ethernet port status LED
Model R7300DST (AC 1900) One of the ports blinks Amber/Orange vs. white. Support says, "The LED color indicates the speed: white for Gigabit Ethernet connections and amber for 100 Mbps or 10 Mbps...
> I know how to calc internet down/up speed [...]
More accurately, you know how to run some program which measures it.
> [...] but how can you determine the speed of data to and from
> different PC's on the peer to peer network?
There may be fancy programs available to do this, but I normally just
transfer a file (which is not trivially small), and measure the time. I
typically have an FTP server running everywhere, and binary FTP is a
pretty low-overhead protocol, so I normally time an FTP transfer. Many
FTP client programs have built-in time recording; Wget, for example:
pro3$ wget ftp://alp-l/tru64/T64V51BB27AS0006.tgz
--2017-09-12 13:51:01-- ftp://alp-l/tru64/T64V51BB27AS0006.tgz
=> 'T64V51BB27AS0006.tgz'
Resolving alp-l... 10.0.0.9
Connecting to alp-l|10.0.0.9|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD (0) tru64 ... done.==> CWD (1) tru64 ... done.
==> SIZE T64V51BB27AS0006.tgz ... done.
==> PASV ... done. ==> RETR T64V51BB27AS0006.tgz ... done.
T64V51BB27AS0006.tg [ <=> ] 205.60M 61.5MB/s in 3.4s
2017-09-12 13:51:05 (59.7 MB/s) - 'T64V51BB27AS0006.tgz' saved [215586563]
Note that "59.7 MB/s" would be about 478Mb/s (59.7 MB/s * 8bit/byte).
Of course, this method may also incur sloth from the file I/O if that's
slower than the network I/O (which may be true in that test). A fancy
program could send dummy data, and discard what it receives, and so geta network speed value which is independent of any disk I/O.
The effort you put into any measurement depends on how much you care
about the result. I typically don't care much about such data.
Thanks, very informative.
I know how to calc internet down/up speed but how can you determine the speed of data to and from different PC's on the peer to peer network?
> I know how to calc internet down/up speed [...]
More accurately, you know how to run some program which measures it.
> [...] but how can you determine the speed of data to and from
> different PC's on the peer to peer network?
There may be fancy programs available to do this, but I normally just
transfer a file (which is not trivially small), and measure the time. I
typically have an FTP server running everywhere, and binary FTP is a
pretty low-overhead protocol, so I normally time an FTP transfer. Many
FTP client programs have built-in time recording; Wget, for example:
pro3$ wget ftp://alp-l/tru64/T64V51BB27AS0006.tgz
--2017-09-12 13:51:01-- ftp://alp-l/tru64/T64V51BB27AS0006.tgz
=> 'T64V51BB27AS0006.tgz'
Resolving alp-l... 10.0.0.9
Connecting to alp-l|10.0.0.9|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD (0) tru64 ... done.==> CWD (1) tru64 ... done.
==> SIZE T64V51BB27AS0006.tgz ... done.
==> PASV ... done. ==> RETR T64V51BB27AS0006.tgz ... done.
T64V51BB27AS0006.tg [ <=> ] 205.60M 61.5MB/s in 3.4s
2017-09-12 13:51:05 (59.7 MB/s) - 'T64V51BB27AS0006.tgz' saved [215586563]
Note that "59.7 MB/s" would be about 478Mb/s (59.7 MB/s * 8bit/byte).
Of course, this method may also incur sloth from the file I/O if that's
slower than the network I/O (which may be true in that test). A fancy
program could send dummy data, and discard what it receives, and so get
a network speed value which is independent of any disk I/O.
The effort you put into any measurement depends on how much you care
about the result. I typically don't care much about such data.