nanog mailing list archives
Re: NAP/ISP Saturation WAS: Re: Exchanges that matter...
From: "dave o'leary" <doleary () cisco com>
Date: Mon, 16 Dec 1996 15:29:27 -0500
At 2:52 PM -0500 12/16/96, Mike Leber wrote:
On Sun, 15 Dec 1996, Forrest W. Christian wrote:
[stuff cut]
The loss is caused by atleast three things: * ICMP packets are dropped by busy routers Many routers drop ICMP packets (ping, traceroute) when busy, or alternate dropping ICMP packets. I know that this behavior occurs when the packets are directed to the specific router, I am not sure if this every occurs for packets passing through. The standby tool ping needs a more reliable replacement for testing end to end packet loss.
in general the router isn't going to treat one protocol (i.e. protocols running over IP (TCP, UDP, ICMP) differently when the packets are passing through the router - it just looks at the header and forwards. ciscos do handle pings for which the router itself is the destination at a lower priority than packets going through the box. I'll leave the discussions as to whether ping is adequate or not for another time.... [more stuff cut] dave - - - - - - - - - - - - - - - - -
Current thread:
- Re: Exchanges that matter..., (continued)
- Re: Exchanges that matter... Alex.Bligh (Dec 05)
- Re: Exchanges that matter... Tim Salo (Dec 05)
- Re: Exchanges that matter... Joe Rhett (Dec 07)
- Re: Exchanges that matter... Nathan Stratton (Dec 07)
- Re: Exchanges that matter... Alec H. Peterson (Dec 08)
- Re: Exchanges that matter... Nathan Stratton (Dec 08)
- Re: Exchanges that matter... Jeremy Porter (Dec 08)
- Re: Exchanges that matter... Alec H. Peterson (Dec 08)
- Re: Exchanges that matter... Joe Rhett (Dec 07)
- NAP/ISP Saturation WAS: Re: Exchanges that matter... Forrest W. Christian (Dec 15)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... Mike Leber (Dec 16)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... dave o'leary (Dec 16)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... Dima Volodin (Dec 16)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... Craig Nordin (Dec 16)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... Tony Li (Dec 17)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... Dennis Ferguson (Dec 17)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... David Schwartz (Dec 17)
- Re: NAP/ISP Saturation WAS: Re: Exchanges that matter... Hank Nussbacher (Dec 17)
- Re: Exchanges that matter... Alex.Bligh (Dec 05)
- RE: Exchanges that matter... Deepak Jain (Dec 05)