So Philip Smith / Geoff Huston's CIDR report becomes worth a good hard look today

McElearney, Kevin Kevin_McElearney at
Wed Aug 13 00:06:45 UTC 2014

"According to NANOG, and complaints tracker DownDetector, many Internet
providers — including Comcast, Level3, AT&T, Cogent, Sprint, Verizon, and
others — have suffered from serious performance problems at various times
on Tuesday.”

While we had a few multi-homed customers have problems with their routers,
we did not see anything in the core.  Is this just a ZDNET reporting error?

	- Kevin

On 8/12/14, 6:10 PM, "William Herrin" <bill at> wrote:

>On Tue, Aug 12, 2014 at 2:42 PM, Hank Nussbacher <hank at>
>I note that the recommended command in that article, "mls cef
>maximum-routes ip 1000", will throw most of your IPv6 routes out of
>the TCAM instead. Which if you have any IPv6 traffic of substance just
>kills you in the other direction. Might want to try something more
>like "mls cef maximum-routes ip 900".
>Bill Herrin
>William Herrin ................ herrin at  bill at
>Owner, Dirtside Systems ......... Web: <>
>Can I solve your unusual networking challenges?

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