From: Amit Jain (netsteps@rediffmail.com)
Date: Wed May 25 2005 - 12:21:42 GMT-3
Yeah I see the point !
Thanks Simon
Amit Jain
----- Original Message -----
From: "SIMON HART" <simon.hart@btinternet.com>
To: <netsteps@rediffmail.com>; <ccielab@groupstudy.com>
Sent: Wednesday, May 25, 2005 8:41 PM
Subject: Re: ATM SVC mapping Ques
> When mapping to an SVC, think of it in the same manner as a Dialer.
Effectively the interface could call any nsap endpoint and establish an SVC
via the ATM switch. Therefore when we attempt to map a distant end L3
address to the SVC, we need to tell the ATM switch which end point we wish
to call, and thus which SVC to establish.
>
> If you are used to ISDN, then you do not map the L3 address to the local
ISDN number .... If you did you would end up calling yourself. Similarly
for ATM.
>
> HTH
>
> Simon
>
> netsteps@rediffmail.com wrote:
> Hi Group
>
> I have small question related to ATM SVC layer3 to layer2 mapping.
> I was going through IE class on demand and came across the config of ATM
SVC under which
> 1) we define the Layer3 ip address to the interface
> 2) we define our own layer2 NSAP address to the interface
> and then
> 3)to do the mapping we Map the remote layer2 NSAP with remote Layer3 IP
address.
>
> I could not understand why we are mapping the remote layer3 address on
remote layer2 NSAP address and not local NSAP address like we do for PVC ?
>
> I hope I am clear.
>
> Thanks
> Amit Jain
>
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