[c-nsp] Another unsupported-transceiver issue

[Nick Ryce]

Hi Tim,

Thanks for this.  I'm getting in touch with our optic supplier to see if
they have had any other reports of this.  Its a chan35 optic to plug into
some DWDM kit.  Pity Cisco seem to have omitted this channel from their
optic range or we would have used them.

Nick
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Nick Ryce
Network Engineer
Lumison
t: 0845 1199 900
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On 04/09/2011 12:24, "tim" <tim at haitabu.net> wrote:

>Nick,
>
>On 02.09.2011 4:47 PM, Nick Ryce wrote:
>> State:
>>     Administrative state: enabled
>>     Operational state: Down (Reason: Security failure (not a valid
>>part))
>>     LED state: Yellow On
>>
>> Is there another hidden command I need to set to get the XFP to work?
>
>I am not an optical or XFP expert, but we had the same issue with some
>second source optics and the ASR 9000 series.  The ASR 9000 line-cards
>seem to be more aggressive in the time-slot between giving power to the
>XFP and wanting to fetch the data from the XFP eeeprom (i.e., the XFP
>has not so much time to boot/get warm and deliver the eeeprom data to
>the line-card).
>One can test this by resetting the line-card with the XFP inserted.  If
>the XFP comes up properly it is (it could be) this issue.
>
>We have no (realistic) work-around for this second source optics, but
>discussed this with the XFP vendors and they modified/upgraded the XFPs
>and now they work with the ASR 9000 series routers.
>
>BTW:  Until now we had no example were we needed the global "service
>unsupported-transceiver" statement.  We do use the "transceiver permit
>pid all" statement in interface configuration mode for some SFPs.
>
>Hth,
>       tim


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