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List:       cisco-nsp
Subject:    Re: [nsp] HDLC with subinterfaces ?
From:       Manpreet Singh <singh () ispsoft ! com>
Date:       2002-05-28 14:14:34
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Hi Stephen,
    thanks for replying. My question is that, HDLC is a point to point
protocol. In case subinterfaces are created,
    and HDLC is used as the framing protocol, then how is the Datalink
connection between two points identified ?


-Manpreet

Stephen Sprunk wrote:

> Thus spake "Manpreet Singh" <singh@ispsoft.com>
> >     I have a question regarding HDLC on cisco.
> >
> > Why does cisco allow creation of subinterfaces with HDLC
> > encapsulation.  How is the link layer connection identified ?
>
> There are certain features which require multiple (sub)interfaces but don't
> require link-layer separation.  You can do non-ISL/dot1q subinterfaces on
> Ethernet as well.
>
> S

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