Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Performance 3745

Hi,

I know router 3745 has performance = 225kpps but how can I convert it to kbps or Mbps (more less) ??

Jarek.

3 REPLIES
New Member

Re: Performance 3745

You cannot convert it to kbps or Mbps directly. You

can get *some* idea by calculating the bit rates for

minimum and maximum sized packets - ie. Ethernet:

Minimum payload 46 bytes: 225k*46*8 = 82.8 Mbps

Maximum payload 1500 bytes: 225k*1500*8 = 2.7 Gbps

Of these two numbers, 82.8 Mbps sounds at least

vaguely realistic, while 2.7 Gbps definitely does

not!

Bronze

Re: Performance 3745

From various documentation I've seen on Cisco switch gear, they usually rate the pps performance using 64KB frames...I don't know if this also translates to the routers or not.

Bronze

Re: Performance 3745

64KB packets are the standard for pps ratings since Marketing folks love "best case" scenarios. My experience with a 2621 was that the total throughput achievable per the pps rating (70K pps * 64 bytes = ~4.3Mbps for a 2621) reflected reality with full-sized packets as well (with which I was able to push around 5Mbps). Can't say if this is the case for other routers as well, but there isn't much to go on in this regard as it's not often I run across bandwidth numbers for pure routers.

207
Views
0
Helpful
3
Replies
CreatePlease login to create content