Been there Done that.
Had a power supply under a desk running a system once. We thought the customer was shutting it off every couple of weekends. Turned out to be cleaning people pushing the vacuum under the desk would hit the on/off switch. Turned the power supply to the side......No more problems. :-) -B- Brad Belton wrote: > I still gotta side with Marlon on this one...cleaning ladies WILL cause CRC > errors. This is networking 101 Bob, I'm disappointed in you...<sigh> > > Best, > > > Brad > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Bob Moldashel > Sent: Friday, October 30, 2009 11:43 AM > To: WISPA General List > Subject: Re: [WISPA] OT Question.... > > Its on a commercial rooftop on both sides. Ladies from the cleaning > union don't go up there. The cabinets are locked. The rooftops are > alarmed and on CCTV on both sides. And it was a crappy day so nobody was > out there sunning themselves. And it hasn't happened since. > > :-) > > I figured it out with further prodding of the network people. Seems the > port is throwing a crapload of CRC errors but only intermittently. > > Sooo.... we will go back and look at the fiber, swap out patch cables, > swap out the GBIC and last but not least swap out the radio. > > Thanks for everyones input. > > -B- > > > > > Marlon K. Schafer wrote: > >> Perhaps this is a case of vandalism? Especially since it only happened >> during the time when people would be in the building. >> >> Or maybe the "cleaning lady" bumped something? >> marlon >> >> ----- Original Message ----- >> From: "Bob Moldashel" <[email protected]> >> To: "WISPA General List" <[email protected]> >> Sent: Friday, October 30, 2009 8:18 AM >> Subject: Re: [WISPA] OT Question.... >> >> >> >> >>> No >>> >>> >>> >>> >>> Marlon K. Schafer wrote: >>> >>> >>>> That almost sounds like someone *physically* unplugging the devices. >>>> > Did > >>>> any of you show up during the outage? (I assume yes but have to >>>> > ask....) > >>>> marlon >>>> >>>> ----- Original Message ----- >>>> From: "Bob Moldashel" <[email protected]> >>>> To: <[email protected]>; "WISPA General List" <[email protected]> >>>> Sent: Friday, October 30, 2009 7:55 AM >>>> Subject: Re: [WISPA] OT Question.... >>>> >>>> >>>> >>>> >>>> >>>>> To All, >>>>> >>>>> OK Its a fiber interface. The system has been working fine. >>>>> >>>>> Configuration is this: >>>>> >>>>> 2960 <--- fiber ---> Gig Radio <---- 60ghz ----> Gig Radio >>>>> <---fiber----> 2960 >>>>> >>>>> The interface went down twice in the same day. The radio never went >>>>> down. the fiber tests fine and no one has screwed with it. They are >>>>> short runs. This is a new deployment that has been up for about 6 >>>>> > weeks. > >>>>> Fiber is all multimode 62.5 mm. It has not been intermittent. It just >>>>> went down hard twice one day and has been fine since. And when it went >>>>> down it went down at 8:15 am and came back up at 2pm then went back >>>>> > down > >>>>> at 2pm and came back up at 4:30 and has been fine since. Both sites >>>>> > are > >>>>> rooftop locations and it was raining the day the event happened so no >>>>> one was working in the vacinity of the equipment. And it has rained on >>>>> and off here for the past 3 weeks with no issues otherwise so I am >>>>> ruling out weather. The radio link never goes down. Ever. So its not >>>>> rain taking out the 60 Ghz. hop. >>>>> >>>>> OK Teaching moment... :-) >>>>> >>>>> For those of you that are not aware most Gigabit radios when they loose >>>>> their RF link shut down their gig ports on both sides to indicate a >>>>> > hard > >>>>> failure. This obviously expedites things like OSPF and such for >>>>> rerouting. >>>>> >>>>> Just really weird.... >>>>> >>>>> -B- >>>>> >>>>> Faisal Imtiaz wrote: >>>>> >>>>> >>>>> >>>>>> Hi Bob, >>>>>> This shows the port simply going up and down. And noting more. >>>>>> >>>>>> Is this a Fiber Port ? Or Copper ? >>>>>> >>>>>> If copper, then the wire needs to be tested, (no loose connector, >>>>>> > right > >>>>>> kind >>>>>> of cable, cat6, and the cable not exceeding 300ft,etc.) >>>>>> >>>>>> If it is fiber then, check the fiber, clean the fiber, check the >>>>>> SFP/GBIC, >>>>>> clear them, reseat them, confirm that you are using right cable >>>>>> > (single > >>>>>> mode >>>>>> or MultiMode) and the SFP/GBIC's Match, and depending on the length of >>>>>> cable, make sure your light levels are good, there is no kink in cable >>>>>> etc) >>>>>> Don't mix MultiMode cables with Single Mode Cables Connectors.. >>>>>> >>>>>> TIP, fiber cables / SFP/GBIC, you can test each side by doing a >>>>>> LoopBack >>>>>> on >>>>>> the Far end... To do a loopback in fiber world, you just have to find >>>>>> > a > >>>>>> way >>>>>> to connect the two ends of the fiber cable together. >>>>>> >>>>>> >>>>>> Additionally, you may want to setup the devices on both side to be >>>>>> Fixed >>>>>> 1000FDX rather than Auto negotiate. >>>>>> >>>>>> Regards >>>>>> >>>>>> >>>>>> Faisal Imtiaz >>>>>> SnappyDSL.net >>>>>> -----Original Message----- >>>>>> From: [email protected] [mailto:[email protected]] >>>>>> > On > >>>>>> Behalf Of Bob Moldashel >>>>>> Sent: Friday, October 30, 2009 10:14 AM >>>>>> To: WISPA General List >>>>>> Subject: [WISPA] OT Question.... >>>>>> >>>>>> Sorry guys. I know its a little OT but I am the RF guy, not the >>>>>> > network > >>>>>> guy. >>>>>> But its kind of on topic because its connected to a wireless link. >>>>>> > :-) > >>>>>> What does this tell everybody??? Its from a Cisco 2960 switch. >>>>>> >>>>>> Oct 27 08:12:18.407 EST: %LINEPROTO-5-UPDOWN: Line protocol on >>>>>> Interface >>>>>> GigabitEthernet0/21, changed state to down Oct 27 08:12:19.455 EST: >>>>>> %LINK-3-UPDOWN: Interface GigabitEthernet0/21, changed state to down >>>>>> Oct >>>>>> 27 >>>>>> 13:52:16.606 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/21, >>>>>> changed >>>>>> state to up Oct 27 13:52:18.661 EST: %LINEPROTO-5-UPDOWN: Line >>>>>> > protocol > >>>>>> on >>>>>> Interface GigabitEthernet0/21, changed state to up Oct 27 14:15:10.273 >>>>>> EST: >>>>>> %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/21, >>>>>> changed >>>>>> state to down Oct 27 14:15:11.314 EST: %LINK-3-UPDOWN: Interface >>>>>> GigabitEthernet0/21, changed state to down Oct 27 16:26:29.667 EST: >>>>>> %LINK-3-UPDOWN: Interface GigabitEthernet0/21, changed state to up >>>>>> >>>>>> >>>>>> I know the gig port is going up and down but does it tell you anything >>>>>> else? >>>>>> >>>>>> >>>>>> Tnx. >>>>>> >>>>>> -B- >>>>>> >>>>>> -B- >>>>>> >>>>>> >>>>>> >>>>>> > ---------------------------------------------------------------------------- > >>>>>> ---- >>>>>> WISPA Wants You! 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