Cisco Routers Throughput

[manish.gangal]

Hello all, my query is about the Throughput of Cisco Routers for both the ISR G2 as well as the 4000 Series.

Is the Advertised Bandwidth Throughput of a Cisco ISR G2 (1900/2900/3900 series) Router an Aggregate of both Inbound and Outbound traffic or Bidirectional or Full Duplex i.e. can handle both way traffic simultaneously?

An example is the advertised throughput of a Cisco 1941 is 25Mbps, so is this 25Mbps sum of In and Out or 25Mbps bothways simultaneously.

Similarly the same query for Cisco 4000 Series, say the 4321 can handle 50Mbps (without Performance License). However upon reading the datasheets again I found out very clearly that in the case of the Cisco 4000 Series the datasheets says Aggregate Throughput.

[Joseph W. Doherty]

It's aggregate on the earlier ISRs too.

The big difference between the earlier ISRs and the 4K ISRs, the latter have internal bandwidth caps, enforced by their software.

On the 4K ISRs, the bandwidth caps are such, that the device can usually provide that much aggregate throughput regardless of packet sizes and/or device feature usage (the one common exception being encryption). (This is also why the 4K ISRs can often double their performance via a software license upgrade.)

On the earlier ISRs, bandwidth capacity could vary very, very much based on packet sizes and or features being used.