Ok, so this means that the GigE ports on the SIXLs are a bit iffy too? Is this there an easy way of telling what the optics are, without taking them apart? A dig command in the CLI maybe?
Are optics failures after a few years common outside of Foundry? I thought that SX based ports should be very reliable, as most used LEDs, not lasers. Tom On Sun, 30 Jul 2006, Gillian Canty-Ross wrote: > Those GigE ports are questionable at best. However, I have found that the > cards with the Finisar GBICs are more reliable than the other branded GBICs > that Foundry used. This goes for the single/dual GigE uplinks for > ServerIrons as well. > > Just an FYI... > > -Gilli > > > On 7/30/06 10:31 AM, "Richard A Steenbergen" <ras at e-gerbil.net> wrote: > >> On Sun, Jul 30, 2006 at 03:58:17PM +0200, Gunther Stammwitz wrote: >>> Hello colleagues, >>> >>>> From time to time Gigabit-Fiber-Ports on our old >>> BI8GMR-Jetcore-Managementmodules are dying. In most cases they're starting >>> to cause crc-errors which can be seen as rx-errors on the devices connected >>> to them. Other ports are completely dead and don't bring up any link at all. >>> >>> I have heard that this is "normal" because the lasers on those modules are >>> so old and are reaching their end of life. Is there a cheap way to replace >>> them? >>> >>> What about the B8GMR3-Modules: are they affected too? I'm thinking about >>> replacing the B8GMRs with B8GMR3s because they are cheap on the grey market >>> - but this would only make sense if they're not affected. >> >> Boy are they ever. I have dozens of B8GMR3 and B8G cards with dead ports >> a-plenty, some with 6 7 or even all 8 ports completely unusable. There is >> a reason those cards are so cheap on the grey market, and that is that no >> one wants to gamble on them. Even if everything checks out today, they can >> start failing one by one tomorrow, and in 6 months you can have a card >> with no working ports. >> >> Foundry seems to have one of the worst problems in this area by far, >> primarily with certain brands of optics used in early production runs (I >> used to know which, but I've honestly stopped caring). Other versions of >> the same cards can still run forever, but you never know what you're going >> to get. If you really care and you can work a soldering iron, it's cheap >> and easy to replace those 1x9 transceivers, but personally this stopped >> being worth my time compared to buying new systems with 6x the density a >> long time ago. :) >> >> If you really must keep using (or at least doing new deployments of) those >> things, do yourself a favor and buy cards with modular optics like M4s and >> BxGs for a few bucks more. > > -- > Gillian Canty-Ross PH: +1617-680-6492 > SubSpace Communications, LLC http://www.subspacecom.com > AIM: gillicanty Skype: gillicanty > The Geeks' choice for Network Gear! > > > > _______________________________________________ > foundry-nsp mailing list > foundry-nsp at puck.nether.net > http://puck.nether.net/mailman/listinfo/foundry-nsp >
