10-03-2010 05:28 PM - edited 03-04-2019 09:58 AM
Hi,
Does anyone have any figures on how many E1/T1 we can safely terminate on a 3900 series router?
With 3800 series routers we have seen any more than 6 pushes the processor above 90%.
Many thanks
Adam Clark
10-03-2010 06:45 PM
Adam,
The 3900 series router come with dual core processors with up to 350 Mbps performance. So preformance for 6 T1/E1 should not be a problem.
Here is the datasheet:
http://www.cisco.com/en/US/prod/collateral/routers/ps10536/data_sheet_c78_553924.html
HTH
Reza
10-03-2010 07:22 PM
Thanks for that,
Reading off the data sheet for the 3800 is what got us into trouble the first time.
To terminate and move a call to the IP environment, the ISR needs take the PSTN call, turn it into a packet and send it, which is a software task and is not hardware assisted.
The raw throughput of a device is not representative of TDM termination.
I am looking for anybody that has tested this in the real world.
Many thanks
Adam
10-03-2010 11:01 PM
For high density T1/E1 voice termination you do not use the ISR router but the AS5xxx
VGs, that are designed and certified for 20, 30 circuits and more without problems.
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