Linux-Hams archive - September 1998: What causes excessivly long PING times?

What causes excessivly long PING times?

Pete Rossi WA3NNA (uhikhne@canis.co.jp)
Sat, 5 Sep 1998 00:37:09 -0400


When I try to ping local nodes, I often see ping times in excess of
30 seconds. Channel activity is very low, yet I send out a ping ICMP
packet and don't get a response for 30-40 and sometime over 60 seconds.

These are local nodes.. Direct routes.

Response from other stations is so slow, that I can do virtually nothing.
Exchanges take so long that a telnet login usually can not be
completed since the login will time-out before I can get my password
entered. Often, half way through the login, it acts like the other
node sort of forgets what it is doing and just stops responding... Like
I start telnet... finally about 2 minutes later I get a Login prompt,
enter my usercode, then nothing....... as if it forgot all about me.
Other times it will eventually come back with a password prompt. I can
actually login successfully maybe 1 out of 10 times.

Signals to and from the other stations are strong. There is virtually
no other activity on the channel. It is just SO SLOW that it becomes
useless.

Is this a configuration issue or simply the blazing speed that one has
to live with at 1200 baud?

Does TCP/IP packet *REALLY* work at 1200 baud? I have been struggling
with this stuff for going on 2 years now and have yet to get anything
that even remotely approaches what I would consider acceptable operation.

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Pete Rossi - WA3NNA tpbzwobo.uxczvy@tsgi.us