RE: ATM question [7:44498]

[Dave Law]

David,

You are correct in your second statement regarding dynamic bandwidth
allocation, if you only have one pvc it will be allocated full line rate. 
If you have ten pvc's configured, one pvc may be using 100Mbps and the
others will be sharing the remaining bandwidth depending on traffic loads. 
Hope this helps.

 -Dave


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ATM question [7:44498]

[David j]

I think this a silly question, but I'm not able to find a clear answer at
cisco.com
I have been wondering if i have a OC-3 line and multiples PVCs configured,
how is bandwidth allocated?, I mean, if I have 10 PVCs is bandwitdh 15.5
Mbps per PVC or is shared dynamically among all PVCs, so if only one PVC is
transmitting it can take all bandwidth for it?
This is the sho int for two pvcs, as you can see BW is 155Mbps in both of
them
ATM8/0/0.100 is up, line protocol is up
  Hardware is cyBus ENHANCED ATM PA
  Internet address is 69.20.2.1/30
  MTU 4470 bytes, BW 149760 Kbit, DLY 80 usec,
ATM8/0/0.101 is up, line protocol is up
  Hardware is cyBus ENHANCED ATM PA
  Internet address is 172.18.252.253/30
  MTU 4470 bytes, BW 149760 Kbit, DLY 80 usec,

I think that in frame relay bandwidth is not shared between PVCs but I'm not
sure..
Thanks in advance.


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