01-04-2010 08:31 PM - edited 03-04-2019 07:07 AM
Question is how much bandwidth should we see with a 2811 and an IMA bundle pack (AIM-IMA and 2 dual port VWIC-2MFT-T1. We are utilizing 3 t-1's in this scenario, so one should expect a 4.5 by 4.5. But I though I read that the 2811 could only handle up to @ 3.5 by 3.5, and that the 2821 was necessary to gain the max speed? Is this true?
01-05-2010 02:21 AM
Hello Ken,
if the ATM IMA can handle the three T1 you should be fine. However, ATM IMA has its own overheads so you cannot get 4.5 Mbps of user traffic.
the ATM IMA bundle with 4 E1 is declared supported on C2811 see table 8 in datasheet
so you should be fine
Hope to help
Giuseppe
01-05-2010 10:35 AM
There is no theoretical limit (other than the number of ports which you can stuff in) but for 2811, more than 2 T1s would start affecting performance (when used along with other services like access control lists (ACLs), quality of service (QoS), and IP Security (IPSec).
However, for most practical uses, you shouldn't face any issues
Cisco 2800 Series Performance
Platform | Recommended Performance with Services Enabled (IMIX traffic) |
Cisco 2801 | Up to 1 T1/E1/xDSL |
Cisco 2811 | Up to 2 T1/E1s/xDSL |
Cisco 2821 | Up to 4 T1/E1s/xDSL |
Cisco 2851 | Up to 6 T1/E1s/xDSL |
See this
http://www.cisco.com/en/US/prod/collateral/routers/ps5854/prod_qas0900aecd80169bd6.html
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide