From: W. Alan Robertson (warobertson@xxxxxxxxxxxxx)
Date: Wed Nov 28 2001 - 22:33:14 GMT-3
> HDLC is a Cisco-proprietary protocol.
Not to nitpick, but HDLC itself is not proprietary; Cisco's
implementation is... HDLC was developed by the International
Organization for Standardization (ISO). It falls under the ISO
standards ISO 3309 and ISO 4335.
Like others have pointed out, PPP is the way to go when mixing
vendors, since it is an Internet standard.
There may be one exception, however, but I cannot confirm it 100%...
I was out at one of my customers a few weeks ago, and they were
changing ISPs. I asked the new ISP whether we ought to be using PPP
or HDLC, and he said HDLC. I commented on their use of Cisco
equipment, and he told me that the head-end router was actually a
Juniper box.
Now, it seems reasonable to me that the new kid on the block, so to
speak, would attempt to seemlessly interoperate with the most widely
used routers, but I cannot say for sure. Can anyone confirm this?
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