[c-nsp] Weird Transceiver failure after upgraded to 6509-E chassis

[Mike Hale]

I've had plenty sfps fail on me after years of use during a swap.  Our last
move involved just around 100 sfps of various types, and we ended up with
about 4 dead or wonky ones.  Granted, they were all third party copper gig
sfps so the quality probably wasnt that great...

On Dec 15, 2013 8:54 AM, "Matthew Huff" <mhuff at ox.com> wrote:

> Yesterday we upgraded two of our 6509 chassis to 6509-E. Other than the
> tedious nature of removing/replacing the line cards, everything went well.
> The configuration was set for complete diagnostics, and everything came up
> with no errors reported. However, one transceiver on one switch, and two on
> another are down/down. The diagnostics show no errors nor do the interfaces
> report any problems. They are all configured as layer 3 devices, with no
> strange features enabled. Other transceivers on the same module work fine,
> and other modules of the same type do as well.
>
> Switch1 (6509-E, sup720-3B, module X6704-10GE)
> ----------------------------------------------
> Xenpack-10Gbase-LX4 down/down
> Xenpack-10Gbase-LX4 down/down
>
> Switch2 (6509-E, sup720-3B, module X6708-10GE)
> ----------------------------------------------
> X2-10GBase-ER down/down
>
>
> Config:
>
> interface TenGigabitEthernet7/3
>  ip address x.x.x.x 255.255.255.252
>  ip pim sparse-dense-mode
>  ipv6 address x:x:x:x::x/127
>  ipv6 enable
>  ipv6 eigrp x
>
> Things I have tried:
>
> 1) Reseating the transceivers
> 2) Reseating the modules
> 3) Power cycling the modules
> 4) Tried OS versions  12.2(33).SXJ2, 12.2(33).SXJ6, 15.1(2)SY1
> 5) Replaced patch cables
> 6) The X2-10GBase-ER transceiver connects to an extension from a meet-me
> room. I swapped pairs to try to see if that resolved anything
>
> Nothing worked.
>
> The two switches haven't been reset in over a year, and probably haven't
> been power-cycled in 3-4 years. It's possible that they just failed due to
> that, being moved, etc... But, once is happenstance, twice is circumstance,
> three times is enemy action. I don't like the coincidence of three failing.
>
> I've got an ER optic on order (I don't have any spares), but I'm going to
> swap out the LX4 optics today.
>
> Has anyone run into this ever before with no error message or any
> indication of the problem? They interfaces show the optics, the ER DOM
> shows low receive levels (varies between -28 and -37), but just won't come
> up.
>
>
>
> ----
> Matthew Huff             | 1 Manhattanville Rd
> Director of Operations   | Purchase, NY 10577
> OTA Management LLC       | Phone: 914-460-4039
>
>
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