Smart-UPS 3000 lost connection (ping timeout)

[BillP]

Hello out there,

i have a problem with my Smart-UPS 3000.
sometimes it isn't available in the network.

I noticed the problem since we got a network monitoring here. maybe you know "nagios" the open source one.
there are all the day a flapping state at the APC UPS.
Only a simple ping is send from the nagios server.
Here are the results of a manual ping sequence from my local machine: (sry its a german one ^^)

-----
Ping wird ausgef?ührt fü?r 10.1.0.120 mit 32 Bytes Daten:

Antwort von 10.1.0.120: Bytes=32 Zeit=4ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=99ms TTL=255
... after some minutes (2-3) ...
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=107ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=4ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=2ms TTL=255
Zeit?überschreitung der Anforderung.
Zeit?überschreitung der Anforderung.
... after some minutes (2-3) ...
Zeitü?berschreitung der Anforderung.
Zeitü?berschreitung der Anforderung.
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=27ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=4ms TTL=255
-----

i got the same problem at a second Smart-UPS 3000. at nearly the same time
nothing related in the eventlog.

all other machines and stuff is available all the time. only the 2 apc ups not.

how to solve the problem?

[BillP]

how frequently does this happen? can you tell us the exact model of the network card inside the UPS? i would try to rule out a network issue by directly connecting to the network management card on a peer to peer network if possible and doing a constant ping.

since both cards are doing it, it seems as though something else is going on. if you could indeed post the event.txt from the network cards when the timeouts occur, that'd be handy too.

[BillP]

ok i will try the things that you describe.
wait some days and i will post the results

where do i get the management card info?
the webinterface of the ups tells me.
UPS -> About:
About UPS

Model: Smart-UPS 3000 RM
Serial Number: JS0750018352
Firmware Revision: 666.6.I
Manufacture Date: 12/15/07

Message was edited by: Besth

[BillP]

Ok after some tests i found out that there is a problem with our Allied Telesys Switch. I put the 2 UPS on an other switch (netgear) and it works without problems. maybe the at switch have problems with only 100mbit/s? i dont know ...
thx for the advices!

[voidstar_apc]

>
Ok after some tests i found out that there is a problem with our Allied Telesys Switch. I put the 2 UPS on an other switch (netgear) and it works without problems. maybe the at switch have problems with only 100mbit/s? i dont know ...
thx for the advices!
>

You may want to try setting a fixed port speed rather than having the NMC auto-negotiate.

[BillP · Accepted solution]

Hello out there,

i have a problem with my Smart-UPS 3000.
sometimes it isn't available in the network.

I noticed the problem since we got a network monitoring here. maybe you know "nagios" the open source one.
there are all the day a flapping state at the APC UPS.
Only a simple ping is send from the nagios server.
Here are the results of a manual ping sequence from my local machine: (sry its a german one ^^)

-----
Ping wird ausgef?ührt fü?r 10.1.0.120 mit 32 Bytes Daten:

Antwort von 10.1.0.120: Bytes=32 Zeit=4ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=99ms TTL=255
... after some minutes (2-3) ...
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=107ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=4ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=2ms TTL=255
Zeit?überschreitung der Anforderung.
Zeit?überschreitung der Anforderung.
... after some minutes (2-3) ...
Zeitü?berschreitung der Anforderung.
Zeitü?berschreitung der Anforderung.
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=3ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=27ms TTL=255
Antwort von 10.1.0.120: Bytes=32 Zeit=4ms TTL=255
-----

i got the same problem at a second Smart-UPS 3000. at nearly the same time
nothing related in the eventlog.

all other machines and stuff is available all the time. only the 2 apc ups not.

how to solve the problem?