Calculating Throughput on the ASA

azali · ‎04-29-2015

Problem:

Solution:

For Calculating Throughput on the ASA, We have to add received or Transmit traffic in bytes/sec on all physical interfaces:

26066000 + 23001 + 12071002 = 38160003 Bytes/sec

Then you will need to convert that to Mb/seconds for that you will need to partition that into 1024 to get the kbps and then the

result into 1024 again to get the Mbps.

38160003*8 = 305280024/1024*1024 = 291 Mbps(Approx)

Example:

ASA# sh traffic

outside:
received (in 3425526.539 secs):
11602101703 packets 3323374105471 bytes
3000 pkts/sec 970001 bytes/sec
transmitted (in 3425526.539 secs):
24732261103 packets 31104178486462 bytes
7000 pkts/sec 9080000 bytes/sec
1 minute input rate 10435 pkts/sec, 1488255 bytes/sec
1 minute output rate 24145 pkts/sec, 32465004 bytes/sec
1 minute drop rate, 6 pkts/sec
5 minute input rate 10922 pkts/sec, 1050667 bytes/sec
5 minute output rate 26759 pkts/sec, 36397369 bytes/sec
5 minute drop rate, 6 pkts/sec
inside:
received (in 3425526.539 secs):
6147712 packets 5827368838 bytes
0 pkts/sec 1000 bytes/sec
transmitted (in 3425526.539 secs):
3864796 packets 706471536 bytes
1 pkts/sec 0 bytes/sec
1 minute input rate 0 pkts/sec, 625 bytes/sec
1 minute output rate 0 pkts/sec, 51 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 1 pkts/sec, 964 bytes/sec
5 minute output rate 0 pkts/sec, 171 bytes/sec
5 minute drop rate, 0 pkts/sec
dmz:
received (in 3425526.529 secs):
615701528 packets 593335704982 bytes
0 pkts/sec 173000 bytes/sec
transmitted (in 3425526.529 secs):
542736326 packets 328097173908 bytes
0 pkts/sec 95000 bytes/sec
1 minute input rate 1014 pkts/sec, 767181 bytes/sec
1 minute output rate 1886 pkts/sec, 2067856 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 713 pkts/sec, 712370 bytes/sec
5 minute output rate 1057 pkts/sec, 1081978 bytes/sec
5 minute drop rate, 0 pkts/sec

management:
received (in 3425526.519 secs):
0 packets 0 bytes
0 pkts/sec 0 bytes/sec
transmitted (in 3425526.519 secs):
0 packets 0 bytes
0 pkts/sec 0 bytes/sec
1 minute input rate 0 pkts/sec, 0 bytes/sec
1 minute output rate 0 pkts/sec, 0 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 0 pkts/sec, 0 bytes/sec
5 minute output rate 0 pkts/sec, 0 bytes/sec
5 minute drop rate, 0 pkts/sec

----------------------------------------
Aggregated Traffic on Physical Interface
----------------------------------------
GigabitEthernet0/0:
received (in 1114722.812 secs):
50691669895 packets 29056584830620 bytes
45000 pkts/sec 26066000 bytes/sec
transmitted (in 1114722.812 secs):
89478187368 packets 105912906132034 bytes
80003 pkts/sec 95012002 bytes/sec
1 minute input rate 10435 pkts/sec, 1728691 bytes/sec
1 minute output rate 24145 pkts/sec, 32903020 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 10922 pkts/sec, 1305240 bytes/sec
5 minute output rate 26759 pkts/sec, 36881011 bytes/sec
5 minute drop rate, 0 pkts/sec
GigabitEthernet0/1:
received (in 1114722.812 secs):
31573251 packets 26176731916 bytes
1 pkts/sec 23001 bytes/sec
transmitted (in 1114722.812 secs):
19393919 packets 3313514438 bytes
1 pkts/sec 2001 bytes/sec
1 minute input rate 0 pkts/sec, 642 bytes/sec
1 minute output rate 0 pkts/sec, 63 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 1 pkts/sec, 987 bytes/sec
5 minute output rate 0 pkts/sec, 187 bytes/sec
5 minute drop rate, 0 pkts/sec
GigabitEthernet0/2:
received (in 1114722.812 secs):
14412733682 packets 13456088520470 bytes
12000 pkts/sec 12071002 bytes/sec
transmitted (in 1114722.812 secs):
12435294449 packets 9183378438358 bytes
11001 pkts/sec 8238003 bytes/sec
1 minute input rate 1014 pkts/sec, 787939 bytes/sec
1 minute output rate 1886 pkts/sec, 2103251 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 713 pkts/sec, 726175 bytes/sec
5 minute output rate 1057 pkts/sec, 1102361 bytes/sec
5 minute drop rate, 0 pkts/sec

Management0/0:
received (in 1114722.832 secs):
0 packets 0 bytes
0 pkts/sec 0 bytes/sec
transmitted (in 1114722.832 secs):
1 packets 42 bytes
0 pkts/sec 0 bytes/sec
1 minute input rate 0 pkts/sec, 0 bytes/sec
1 minute output rate 0 pkts/sec, 0 bytes/sec
1 minute drop rate, 0 pkts/sec
5 minute input rate 0 pkts/sec, 0 bytes/sec
5 minute output rate 0 pkts/sec, 0 bytes/sec
5 minute drop rate, 0 pkts/sec

------------------------------------------------------------------------------------------------
Outputs (which we calculated in order to get the throughput):

We have to add receive traffic on Physical interfaces:

26066000 + 23001 + 12071002 = 38160003 Bytes/sec

38160003*8 = 305280024/1024*1024 = 291 Mbps(Approx)

------------------------------------------------------------------------------------------------

Monitoring Bandwidth through ASDM:

we can monitor the bandwidth through Graphs in the Firewall Dashboard.

Reference Document:

http://www.cisco.com/c/en/us/td/docs/security/asa/asa93/asdm73/general/asa-general-asdm/intro-asdm-gui.html#pgfId-1110965

Thanks

Azmat Ali

Jacob Mani · ‎04-29-2015

Great document Azmat...Very helpful!!

ROBERTO TACCON · ‎05-02-2015

Why

38160003*8 = 305280024/1024*1024 = 291 Mbps(Approx)

?!?

Storage (Kilo = 1024 bits)
Bandwidth (Kilo = 1000 bits)

http://physics.nist.gov/cuu/Units/binary.html

so

38160003 = megabits 305.280024

secureIT · ‎08-31-2016

Hi Azmat Ali, I am getting below different values for recvd and transmit, which one to be considered here ?

Traffic	bytes/sec	Mbps
recvd	38160003	291.1377
trasmitt	103252006	787.7503

fcmartinez · ‎11-16-2021

Hello azali and all:

Is not this wrong equation?

38160003*8 = 305280024/1024*1024 = 291 Mbps(Approx)

it should be

38160003*8 = 305280024 bits = (305280024/1000) Kbps = 305280.024/1024 = 291 Mbps(Approx) notice I removed *1024 which I think is confusing and move bits to Kbps so result will reflect Mbps

There is also some documentation that indicates 1000Kbps = 1Mbps and other 1024Kbps = 1Mbps

Please note: "Decimal multiples" not Binary or when it is Binary related.

Refer to: "Decimal multiples" not Binary.

www.checkyourmath.com/convert/data_rates/per_second/kilobits_megabits_per_second.php

and Binary:

How to Convert Kilobit/second to Megabit/second

1 kb/s = 0.0009765625 Mb/s
1 Mb/s = 1024 kb/s

www.unitconverters.net/data-transfer/kbps-to-mbps.htm

Thanks!