On Tue, Oct 11, 2011 at 11:37:52AM -0500, Steve Howard wrote:
On 10/11/2011 09:14 AM, Mike Horwath wrote:
This whole DNS thing on a router discussion is funny.
It was a logical discussion to determine what is best for MICE. I'm sorry if you find it insignificant, but I'm glad that you found humor in it.
I never said it was insignificant. You look for offense and you will find it. My opinion is that this is an over-optimization that leads to wasted time in other ways. Just my opinion; I am not setting any policies for MICE on this.
Do a traceroute that has a few hops that haven't set up their PTR records properly. (Or in a VRF with no DNS, etc). You will wait a while for each hop to resolve. You are correct in that it doesn't slow the packets down on the network. However, it greatly delays the time between packets. It changes from a few ms to several seconds per hop (default timeout can be changed with "ip domain timeout"). Add this up for a couple of hops and you must be really slow at copy/paste for it to be worse.
A) if the DNS server is operational but without PTR records, it will return immediately. B) if they are lame delegations then the provider should fix it and not leave it broken. C) 5ms is always faster than 2 seconds to copy, change 'windows', click your edit box, paste, return (or click submit). Or if you are me, I'd queue up a dig or nslookup in a window then play the copy and paste game and hit return - no finding the edit box, and the time wasted will still be wasted. Why your opinion MUST override mine baffles me.
I know that everyone should have all of their PTR records setup properly, but it doesn't happen that way in the real world.
I live in the real world, since 1990 when I joined the Internet, since 1993 when I fired up my first real ISP server with Doug one very late night. I ain't no fresh kid on this block.
Perhaps a company could run dedicatd nameservers for their networking gear, or just run better nameservers on their infrastructure.
Dedicated/better name servers won't solve anything when there is no valid PTR record.
See results A and B above, one causes no issues, one needs to be fixed.
MICE is made up of many members that operate in different areas of the "tech" industry. What may seem best for your particular industry segment may not be the "best fit" for the majority of MICE members or the internet community.
No one said MICE had to abide by my rules and thought processes. If it did - we would have started charging for ports on day one as was discussed that very first day. -- Mike Horwath ipHouse - Welcome home! drechsau@iphouse.net The universe is an island, surrounded by whatever it is that surrounds universes. - Berkeley Fortune ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1