http://www.cisco.com/en/US/products/hw/modules/ps4835/ps5136/index.html
But if there is no other traffic, why would you need deep packet buffers to beat records? (It doesn't say if this was on a production network with other traffic or not, so I don't know)I wouldn't suspect its on a production network at all.
we might disagree wrt the definition of "production" 
http://ultralight.caltech.edu/lsr_06252004/
shows the path between caltech and cern transiting
- a GSR in CENIC's LAX POP -- this is a production router for many
higher ed institutions in california, including all university
of california campuses, stanford, USC, caltech, and the california
state university system.
- abilene, the internet2 backbone, which is a production network for
many higher ed institutions in the US. the abilene "weather map" image
shown at the URL above shows that indeed there was other traffic
on some of the links transited.
ken