nanog mailing list archives

Re: What is the limit? (was RE: multi-homing fixes)


From: smd () clock org (Sean M. Doran)
Date: Wed, 29 Aug 2001 08:26:42 -0700 (PDT)


| Nonetheless, it's still annoying as hell that Cisco can't just allow a GB
| or more of RAM in 5-6 figure router and just be done with that aspect of
| it...

They used to build boxes with cheap no-ECC, no-parity DRAM
and had their fingers blown off by people who started counting
the difference between line BER and e2e checksum failures,
particularly on faster boards.

Now they use well-built ECC SDRAM in general, and retain
their fingers.  AFAIK they don't forbid anyone from going
out and acquiring el-cheapo RAM from other suppliers.

A bit-error in a patricia tree can be really yucky.

        Sean.


Current thread: