Heres my 2 cents... OSPF is a open-standard used by many people making routing products. EIGRP is Cisco propiertary (no RFC/no open standard) and Cisco-gear only runs EIGRP that I know of. There may be a small # of vendors who licensed the protocol from Cisco for their use. Back in the early 90s, when networking was starting out and before people had more choices, people stuck with one company for the most part. It was popular for people to use cisco routers and Synoptics hubs. In this time period, before people focused on standards, etc EIGRP was used more if they had cisco. Why? I think because it was a improvement over RIP and wasn't as complex to get running as OSPF for the small amount of gear that did OSPF at the time. Users were just starting to understand networking, etc. As things developed over the years and more players came into play interoperability became more important, standards were more important to use and follow, software became more stable, easier to configure/use, hardware became cheaper, etc. My first real job in the early 90s was in a Cisco EIGRP and Synoptics environment. AGS+ in the core. Over the years we replaced the dumb hubs (synoptics) with early cisco and Synoptics/Wellfleet/Bay switches and upgraded routers but stuck with EIGRP because it was in place already. Today, I work in a multi-vendor TAC environment and deal with interoperability issues regularly and use standard protocols whenever possible. I've seen alot of funky stuff between different boxes. Even though there are standards, everyone implements them in a slightly different manner so there may be things you need to tweak to get it optimized. HTH, Erick CCNP-Security, NNCSE, CCIE attempt 2 soon --- "Fowler, Joey" <[EMAIL PROTECTED]> wrote: > I'll drop my 2 cents in. I've been told by a CCIE > that EIGRP is usually used > when you are running strictly Cisco equipment, but > that OSPF works really > well with multi-vendor equipment. Unfortunately I've > only worked with Cisco > equipment and have never had the chance to check > this out for myself. If you > have the CiscoPress book for routing, page 196, 197 > has some ways of > implementing different areas with OSPF, however I > think I've also read > somewhere that you should have at least 30 routers > when using OSPF....ooops > 20 routers, page 177 same book. It also says a > Maximum of 60 areas per > Domain,(I'm guessing that means per AS) CCO also has > a good design paper on > OSPF. > > Joey > > -----Original Message----- > From: GNOME [mailto:[EMAIL PROTECTED]] > Sent: Sunday, January 14, 2001 9:51 AM > To: [EMAIL PROTECTED] > Subject: ************** Which is more common - OSPF > or EIGRP? > ******************* > > > Which is more common - OSPF or EIGRP? > > Hi > > I am wondering which routing protocol is more common > in the industries - > OSPF or EIGRP ?] > > i am trying to implement some routing protocol on my > HQ with several (20+) > branches (with only 1 router in each branch) using > hub-and-spoke design. > > I am wondering which protocol so i use? OSPF or > EIGRP ? > > Is there a limit on the number of areas that one can > create with OSPF? > > Any help will be appreciated. Thanks > > > Regards > > > > > > > _________________________________ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _________________________________ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
