[evla-sw-discuss] Station board port mirroring

James Robnett jrobnett at nrao.edu
Wed Apr 16 16:49:31 EDT 2014


Slight change of plans.  I accidentally pulled the connection for 
d003-t-3 rather than s003-t-3 (both for antenna 12), serendipitously
Kerry said that he'd rather we used a deformatter connection than a 
station board anyway so I left it as is.

I've set up a port mirror so that any packets destined for s003-t-1 are 
mirrored to d003-t-3's old port which is now connected to the spare 
ethernet jack on widar-boot-2.  I've tested and can see the packets so 
now that I'm back in the building I'll set up a tcpdump on both and 
hopefully catch a missing delay model over night.

james

On 04/15/2014 02:25 PM, James Robnett wrote:
> Can I get the R-C-S designation of a station board in the same rack as
> antenna 12's station boards.
>
> Unless there objections then I plan to go to the site tomorrow and steal
> the switch port for one of antenna 12's station boards and mirror the
> packets destined to the the designated station board to that port.
>
> Once that's done I can dump packets on both the designated station board
> and the port mirror to see if delay model and configuration packets are
> getting to the board and not handled or not getting to the board at all.
>
> According to Gene antenna 12 was supposed to go in the barn either today
> or tomorrow.
>
> james
>
>
>
>



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