> We have developed an optical ethernet module, which caters three > GigabitEthernet ports, two 10/100 fast ethernet ports and one Gigabit > Optics. > We are observing that for every power-up cycles, the board is > behaving differently. Strange behaviour is for one particular > power-up there will be no packet loss (rigorously tested for few > hours), where as after few minutes for another power-up cycle the same > board will show few packet loss. How many clocks are there are on the board and/or how are they generated? Maybe sometimes the link level clocks come out of reset synchronized and other times they are out of sync. I'd probably try to get a scope on the link signals. It might be interesting to check the power supplies. -- The suespammers.org mail server is located in California. So are all my other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited commercial e-mail to my suespammers.org address or any of my other addresses. These are my opinions, not necessarily my employer's. I hate spam. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu