Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uwmcsd1!ig!agate!ucbvax!PARK-STREET.BBN.COM!brescia From: brescia@PARK-STREET.BBN.COM (Mike Brescia) Newsgroups: comp.protocols.tcp-ip Subject: Re: icmp overload Message-ID: <8807140458.AA02172@ucbvax.Berkeley.EDU> Date: 14 Jul 88 00:20:15 GMT References: <12414041833.17.MKL@SRI-NIC.ARPA> Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 11 > 24% of all the packets we receive are ICMP messages. Of those, 13% are > unreachables and 7% are redirects. Mark, can you tell if they are host- or net- unreachables? Which gateways are sending you the ICMP replies? Can you tell if either the unreachables or the redirects happen contrary to what you would expect from "routing by inspection"? In other words, are they caused because you are trying to send bunches of mail to hosts which are, in fact, down? Sorry, no answers. Only questions? Mike