Cell Relay Archive

[prem@trillium.com (Prem Shankar Sharma)]

   I feel that a device capabale of concentrating ATM accesses, not having any 
local switching facility and providing a common interface with the main switch 
could be considered an ATM access concentrator. Whereas, an ATM edge switch 
could be one having the local switching capabilities alongwith of concentrating 
the outgoing traffic. 
   To me, these two terms appear synonymous with Remote Switching Unit (RSU) and 
Remote Base Module (RBM) of PSTN domain.
    

Thanks.
Prem Shankar Sharma


> My understanding is that an access concentrator is like a mux (sort of a
> terminal server) so you can have several endstations tied into one switch
> port.  Hope this helps...DT

> Tim <2207leung@hknet.com> wrote in article <35B747F3.2D66@hknet.com>...
>> Folks,
>> 
>>       Can anyone tell me what ATM access concentrator is?  My friend
>> tells me that he uses an ATM access concentrator to concentrate all the
>> traffic from a remote site to the aggregate STM-1, which is sent via SDH
>> network to the central ATM switch for outgoing traffic. What is the
>> difference between the ATM edge switch and ATM access concentrator? What
>> is the difference if ATM edge switch is put in the remote site instead
>> of ATM access concentrator for the broadband traffic (eg. video)
>>
>> Thnaks. Pls email to me: 2207leung@hknet.com if you have any ideas.
>>