topic Re: Loop Protect Error 888 in Switches, Hubs, and Modems

Loop Protect Error 888

domineaux — Mon, 04 Apr 2011 12:30:13 GMT

Hello, does anybody knows what this error mean:

Since I activate this functionnality, I can see that in Log....

00888 loop-protect: port A3 - received packet failed authentication

Re: Loop Protect Error 888

cenk sasmaztin — Mon, 04 Apr 2011 12:44:33 GMT

can I see show tech print your switch

Re: Loop Protect Error 888

domineaux — Mon, 04 Apr 2011 12:58:01 GMT

I can't, because the display is too long.
Which information you need?

Re: Loop Protect Error 888

cenk sasmaztin — Mon, 04 Apr 2011 13:00:28 GMT

888 Port - received
packet failed authentication.
info Loop protection packets on the port are not being processed
because they are not authentic. This can happen if a malicious user
is trying to spoof loop protection packets.

this eror code 888
check user nic

Re: Loop Protect Error 888

domineaux — Mon, 04 Apr 2011 13:21:26 GMT

Yes I've read about this, but on the specified port there is a switch (Procurve 5412zl the same).

Re: Loop Protect Error 888

cenk sasmaztin — Mon, 04 Apr 2011 13:26:28 GMT

loop protech
not applicable on the uplink port

loop protech applied only user port on the switch

Re: Loop Protect Error 888

cenk sasmaztin — Mon, 04 Apr 2011 13:36:59 GMT

http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c02714008/c02714008.pdf

page 197

Re: Loop Protect Error 888

domineaux — Mon, 04 Apr 2011 14:03:31 GMT

Ok but I can't see that we only use Loop protection on edge port.

In this doc : http://h40060.www4.hp.com/procurve/uk/en/pdfs/application-notes/How_to_improve_and_harden_spanning-tree_configuration_Configuration_note_Dec_08_A4.pdf

It is written, to use loop protect on all ports

Re: Loop Protect Error 888

cenk sasmaztin — Mon, 04 Apr 2011 14:42:08 GMT

Loop protection should be activated on all ports.

yess it is true

but for unmanagement switch connection

please check guide and my attach file

Re: Loop Protect Error 888

domineaux — Mon, 04 Apr 2011 15:01:59 GMT

Yes I must confess that you're true, and I must wash my eyes before read a documentation.

Thank you for the help.

Re: Loop Protect Error 888

cenk sasmaztin — Mon, 11 Jul 2011 22:00:15 GMT

Re: Loop Protect Error 888

domineaux — Tue, 05 Apr 2011 07:24:51 GMT

Ã§ok teÅ ekkÃ¼r ederim

Re: Loop Protect Error 888

cenk sasmaztin — Tue, 05 Apr 2011 07:31:30 GMT

cela ne fait rien :)