KHNOG October 2016 Mr. Kunthea Vorn, Network Engineer at eintellego Networks

2. Agenda
v What is Bandwidth management?
v Why we need to manage bandwidth in our
network?
v How to Control Bandwidth on Linux (CentOS7)?
v Demontration LAB
v Question and Answer

3. v Bandwidth management is the process of
measuring and controlling the communications
(traffic, packets) on a network link to avoid
network congestion and poor performance of the
network.
v Bandwidth management is measured in bits
per second (bit/s) or bytes per second (B/s).
What is Bandwidth management?

4. Why we need to manage
bandwidth in our network?
v Control traffic bandwidth of users
v Avoid congestion in the networks
v Allocate resource for other important use (Voice
Videos …)
v Save cost

5. How to Control Bandwidth on
Linux (CentOS7)?
v We have many tools and methods for limiting rate on
Linux OS (Wonder shaper, Traffic Control (TC), Fire QOS
…).
v FireHOL is a language for builds secure stateful
firewalls from easy to understand, human-readable
configurations.
v FireQOS is a program which sets up traffic shaping
from an easy-to-understand and flexible configuration
file.

6. How to Control Bandwidth on
Linux (CentOS7)?
v Installing FireQOS
yum install git –y
git clone https://github.com/ktsaou/firehol.gitfirehol.git
cd firehol.git git checkout origin/master
mkdir -p /etc/firehol
cp etc/fireqos.conf.example /etc/firehol/fireqos.conf
vi /etc/firehol/fireqos.conf

7. How to Control Bandwidth on
Linux (CentOS7)?
DEVICE=ens160
INPUT_SPEED=1024kbit
OUTPUT_SPEED=1024kbit
interface $DEVICE world-in input rate $INPUT_SPEED
interface $DEVICE world-out output rate $OUTPUT_SPEED
vStart service
./sbin/fireqos.instart

8. Senario LAB
v Topology

9. Senario LAB
v Linux Side

10. Senario LAB
v Linux Side

11. Senario LAB
v Linux Side

12. Senario LAB
v Result at client side

13. Reference
v http://firehol.org/fireqos-manual.html