I don't know if you will ever receive the answer to "why". There is a discussion of EIGRP vs OSPF in the Cisco Press book "EIGRP Network Design Solutions" by Ivan Pepelnjak. ISBN 1578701651 See page 109.
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Friday, December 13, 2002 12:29 PM > To: [EMAIL PROTECTED] > Subject: EIGRP Adjacenies are Unidirectional. Why? [7:59186] > > > As EIGRP only looks at incoming hello packets (EIGRP type 5 > packets) to keep > a peer neighbor relationship up on a particular side of a > routed link., this > can be a prime issue for "black hole" routing issues. > > OSPF adjacencies are bi-directional. Makes more sense. > > Why was EIGRP designed this way? > > > ________________________________________________________________ > Ken Farrington > Global Networks, Barclays Capital, 5 The North Colonnade, Canary > Wharf, London, E14 4BB > * Tel : 020 7773 3550 > * Mob : 07768-866655 > * [EMAIL PROTECTED] > > > > > -------------------------------------------------------------- > ---------- > For more information about Barclays Capital, please > visit our web site at http://www.barcap.com. > > > Internet communications are not secure and therefore the Barclays > Group does not accept legal responsibility for the contents of this > message. Although the Barclays Group operates anti-virus programmes, > it does not accept responsibility for any damage whatsoever that is > caused by viruses being passed. Any views or opinions presented are > solely those of the author and do not necessarily represent > those of the > Barclays Group. Replies to this email may be monitored by > the Barclays > Group for operational or business reasons. > > -------------------------------------------------------------- > ---------- Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59192&t=59186 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]