Nikolas,
Thanks for your reply! I think I understand what you are saying, especially
as regards using CCC for layer 2 switching cross-connects, or even for LSP
stitching.
However, I use the word encapsulation for a couple of reasons:
(1) Its the way Juniper describes it in the only reference I can find about
Ethernet VLAN-CCC
(http://www.juniper.net/techpubs/software/junos42/swconfig-interfaces42/html
/interfaces-ethernet-config8.html) which I can only find in 4.2 docs (by
searching)
(2) I'm particularly interested in MPLS LSP Tunnel Cross-Connects
(http://www.juniper.net/techpubs/software/junos43/swconfig43-mpls-apps/html/
ccc-config7.html#1013872). In this case, I would use encapsulation to
describe what's happening- ingress traffic on the interface is encapsulated
and put in an LSP, which travels across one or more LSR's to an egress point
where it is deencapsulated (with CCC, this is largely just stuffing frames,
but some layer-2 munging may occur).
Am I missing something? I'd like to know if I misunderstand something.
It seems odd that the 4.3 docs don't mention VLAN-CCC at all (that I can
find), I presume the functionality has not been deprecated.
I'm interested in finding out if the method by which layer-2 data is
encapsulated and placed into an LSP is publicly documented, and if it is
standards track.
Greg Ketell's e-mail implies that CCC is an implementation of the MPLS
Layer-2 VPN I-D. Which makes sense given the number of Juniper names on the
I-D. (Thanks Greg!)
--D
-- Darren Bolding darren@bolding.org --
-- http://www.bolding.org/~darren --
> -----Original Message-----
> From: Nikolas Weidenbacher [mailto:nikw@sgns.net]
> Sent: Tuesday, January 30, 2001 4:07 PM
> To: Darren Bolding
> Cc: juniper-nsp@puck.nether.net
> Subject: Re: [j-nsp] CCC encapsulation standard?
>
>
>
> Encapsulation? CCC happens within a single router, so there is no such
> thing as a CCC packet. CCC is a configuration within the router that maps
> two logical interfaces together, or maps a logical interface to an MPLS
> tunnel.
>
> Are you sure you're not wondering about MPLS?
>
> Nik Weidenbacher nikw@sgns.net
> Network Engineer 215-351-1067
> Sungard Network Solutions
>
> On Tue, 30 Jan 2001, Darren Bolding wrote:
>
> >
> > Hello,
> >
> > I'm wondering if anyone can point me to any published standards for CCC
> > (Circuit Cross-Connect) encapsulation?
> >
> > I'm pretty sure its not in the ietf, but perhaps I missed it.
> I'm wondering
> > if Juniper has ever released the spec for interoperability purposes.
> >
> > Curious, and thanks,
> >
> > --D
> >
> > -- Darren Bolding darren@bolding.org --
> > -- http://www.bolding.org/~darren --
> >
>
>
>
This archive was generated by hypermail 2b29 : Mon Aug 05 2002 - 10:42:43 EDT