Question came up on the CCIE group revolving around the meaning of the term
"tunnel"
I think I am seeing where the author of the below quote is going. I'm
wondering if one of the folks on this group might be willing to offer some
insight.
The question originated with someone calling an OSPF virt
In my opinion, a tunnel is when you take one packet and encapsulate it with
an additional routing protocol header in order to pass it over a transit
network transparently. So, DLSW uses tunnels, GRE tunnels are obviously
tunnels, PIM register messages are tunnels, etc. That's just a brief
de
>Question came up on the CCIE group revolving around the meaning of the term
"tunnel"
>
>I think I am seeing where the author of the below quote is going. I'm
>wondering if one of the folks on this group might be willing to offer some
>insight.
>
>The question originated with someone calling an O
"Howard C. Berkowitz" wrote:
>
> In the most general sense, a tunnel is a means of taking a protocol
> data unit payload of OSI layer N of protocol family P1: (N,P1)-PDU,
> and transmitting it with a delivery header at layer M of protocol
> family P2. What is actually transmitted is, minimally,
Tunneling, in general, is taking data (whether user data, routing
information, etc), encapsulating it in another protocol for travel (i.e.
TCP/IP), and sending it to a destination where the other end unwraps the
encapsulation and then uses the data (whether user data, routing
information, etc). D
rest the question as to whether of not an OSPF
virtual link is a tunnel. It is not.
Chuck
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Marty Adkins
Sent: Monday, May 28, 2001 7:24 PM
To: [EMAIL PROTECTED]
Subject: Re: Question on the m
erally...
- Original Message -
From: "Chuck Larrieu"
To:
Sent: Tuesday, May 29, 2001 1:18 AM
Subject: RE: Question on the meaning of "tunneling" [7:6136]
> Did some more research. In the context of the question, I went to the RFC
to
> see what the source says. It o
; [EMAIL PROTECTED]
Subject: Re: Question on the meaning of "tunneling" [7:6136]
" Virtual links are part of the backbone, and behave as if they were
unnumbered point-to-point networks between the two routers. "
its a virtual link. its an unnumbered network. a network/seg
From: Peter I. Slow [mailto:[EMAIL PROTECTED]]
> Sent: Monday, May 28, 2001 10:52 PM
> To: Chuck Larrieu; [EMAIL PROTECTED]
> Subject: Re: Question on the meaning of "tunneling" [7:6136]
>
> " Virtual links are part of the backbone, and behave as if they were
&g
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