To be perfectly honest, I can see myself doing that on a Microtik box by accident if all I knew was Cisco. Their command line syntax is completely unintuitive for anyone used to doing routing and switching for any length of time. =)

Then again, I'd go with LRP before using anything other Cisco or Juno if I had prefixes to advertise.

------------------------------------------------------- Aloiamoa Anesi, Jr. Systems Engineer Blue Sky Communications 478 Laufou Shopping Ctr Pago Pago, American Samoa 96799 -- Ph: +1.684.699.2759 ext 1098 Cell: +1.684.258.1098 VoIP Business Hours: 1098@voip.bluesky.as

On Feb 23, 2009, at 8:06 AM, Scott Weeks wrote:

--- alo.anesi@bluesky.as wrote: From: Aloiamoa Anesi alo.anesi@bluesky.as

Let's not go overboard with our AS Path prepends, ok? http://www.renesys.com/blog/2009/02/the-flap-heard-around-the-worl.shtml

---

Note, though, that this was a fat finger on a Microtik box. From the folks that caused the problem: http://www.gossamer-threads.com/lists/nanog/users/112847?do=post_view_thread...

Also, it seems it was old code as well: http://www.gossamer-threads.com/lists/nanog/users/112857?do=post_view_thread...

One thing that can be done to help something like this from spreading around the internet is filter your downstream BGP customers.

scott

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