Date: Sun, 14 Jul 1996 18:01:56 +0900 (JST) From: Michael Hancock <michaelh@cet.co.jp> To: michael butler <imb@asstdc.com.au> Cc: Archie Cobbs <archie@whistle.com>, freebsd-hackers@freebsd.org Subject: Re: interfaces, routes, etc. Message-ID: <Pine.SV4.3.93.960714175832.1176C-100000@parkplace.cet.co.jp> In-Reply-To: <199607140623.QAA00562@walkabout.asstdc.com.au>
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On Sun, 14 Jul 1996, michael butler wrote: > > - When you bring an EtherNet interface up and ping some addresses > > on that network, you get automatically generated LINK layer routes > > (ie, arp entries). However, when you bring the interface down > > these routes do not automatically go away. > > I must admit that I was puzzled as to why it was necessary to add MAC > addresses into the route table. I thought they belonged in the ARP table and > nowhere else .. use arp -d to remove the entries. The arp table and routes are in a data structure called a radix trie. It's a structure that assumes routes and links don't change very often and it optimizes lookups at the expense of additions and deletions, though these don't seem to be that slow. -mike hancock
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