"Howard C. Berkowitz" wrote: > > HDLC really doesn't offer any advantages over PPP, so it really > reflects someone who doesn't want to do minimum reconfiguration of > their Ciscos to worry about using PPP for multivendor compatibility. > Well, one small advantage is that Cisco's proprietary HDLC keepalive will report a loop condition on the layer 1. And it will also, by default, treat a looped interface as "line protocol up", which is great for testing, using just the router. Marty Adkins Email: [EMAIL PROTECTED] Mentor Technologies Phone: 240-568-6526 133 National Business Pkwy WWW: http://www.mentortech.com Annapolis Junction, MD 20701 Cisco CCIE #1289 _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]