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" <lakel...@gbcx.net> To: <fai...@snappydsl.net>; "WISPA General List" <wireless@wispa.org> 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: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] 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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