nanog mailing list archives
Re: Ungodly packet loss rates
From: Tony Li <tli () jnx com>
Date: Tue, 22 Oct 1996 00:53:44 -0700 (PDT)
JBash, In my experience, the primary technical factors that are hurting Internet reliability at this time are roughly (in no particular order): 1) Poorly performing routers. I would estimate that 50% of the packet loss in the Internet today is wholly unnecessary and results soley from defective gear. The route cache paradigm (and subsequent cache thrashing) in current cisco product, the lack of memd, missing high performance interfaces, and the lack of backplane bandwidth are all grave problems. I will certainly accept some personal culpability here, but cisco has had far too long to get its act together and has not responded. I refer you to Mr. Bilger for further progress. 2) Lack of bandwidth. There are frequently cases where the bandwidth simply does not exist. This may be due to lack of planning, lack of will, greed, or whatever. Only economics will drive this forward. 3) Poor engineering. The number of ISP's who have no idea what they're doing is still quite high. I refer you to Greg, Ravi, et. al. for war stories on what really happens. 4) Lack of routing scalability. You expressed amazement that the BGP mesh still holds together. My amazement exceeds yours. A new generation of protocol is needed which, if nothing else, is much easier to manage, and can scale to larger domains. You know some of the kludgery that was done to aid this scaling. It's time for a new generation which incorporates this as the base. Unfortunately, this isn't useful without #1. Given this _technical_ environment where literally no one _CAN_ succeed in delivering volume quality Internet connectivity, I'm not surprised that you've gotten evasive, defensive, and non-sensical replies. I wholeheartedly agree that the service level of the Internet as a whole is pathetic, but given the above situation, your efforts are better spent internally at cisco rather than trying to perform external social engineering. Once the technical situation improves, the market will eliminate those who (for whatever reason) are unable to deliver. If the technical situation does not improve shortly, the market will simply eliminate the Internet. ;-( Regards, Tony - - - - - - - - - - - - - - - - -
Current thread:
- Re: Ungodly packet loss rates, (continued)
- Re: Ungodly packet loss rates Avi Freedman (Oct 22)
- Re: Ungodly packet loss rates Kevin Oberman (Oct 22)
- Re: Ungodly packet loss rates Ehud Gavron (Oct 22)
- Re: Ungodly packet loss rates Robert Laughlin (Oct 21)
- Re: Ungodly packet loss rates Mark Boolootian (Oct 22)
- Re: Ungodly packet loss rates jbash (Oct 21)
- Re: Ungodly packet loss rates Vadim Antonov (Oct 21)
- Re: Ungodly packet loss rates Bill Manning (Oct 21)
- Re: Ungodly packet loss rates Peter Kline (Oct 21)
- Re: Ungodly packet loss rates jbash (Oct 21)
- Re: Ungodly packet loss rates Tony Li (Oct 22)
- Re: Ungodly packet loss rates Andrew Partan (Oct 22)
- Re: Ungodly packet loss rates Dorian R. Kim (Oct 22)
- Re: Ungodly packet loss rates Tony Li (Oct 22)
- Re: Ungodly packet loss rates Dorian R. Kim (Oct 22)
- Re: Ungodly packet loss rates Tony Li (Oct 22)
- Re: Ungodly packet loss rates bmanning (Oct 22)