[c-nsp] Parity Errors and Cosmic Rays

[Stafford A. Rau]

* John Neiberger <John.Neiberger at efirstbank.com> [050505 08:18]:
> 
> Fast forward to this morning when the RSP4 in that router got a memory
> parity error and rebooted. That is a spectacularly bad thing to happen
> in our network considering what is attached to this router. Again, it
> appears that it's "an isolated event, probably due to cosmic rays."
> 
> How many times do I have to see the same "isolated" event before I
> start looking for other answers? I guarantee you that the CTO of our
> company will not be pleased when the best answer I can give to him is
> "cosmic rays".

I think you need at least RSP4+'s for ECC (Error-Correcting Code)
memory on the RSPs, and VIP4-80s for ECC on the VIPs.

--Stafford