Bandwidth Management with HTB

The following steps for creating bandwidth Management with HTB, this is a standard tutorial to limit bandwidth based on IP address  not port or services.

Labs: 1 linux box with two ethernet card, configured eth0 direct to internet, and eth1 direct to LAN 

1. Download htb-init file

2. create directory /etc/sysconfig/htb

    # mkdir /etc/sysconfig/htb

3.  Go to the directory and create all htb config files:

      # cd /etc/sysconfig/htb

 4. create the interface config

      # vi eth0

              DEFAULT=0

              R2Q=1000

        # vi eth1

                 DEFAULT=0

                 R2Q=10000

5. create root interface configuration on each interface

       # vi eth0-2.root

             RATE=512kbps

             CEIL= 512kbps

        # vi eth1-5.root

                RATE=512kbps

                CEIL=512 kbps

6. create bandwidth for the source / destination, in the following example we create the rule on eth1, with the assumption to limit bandwidth go and from eth1. the following example is using id 1002 and the name is VOIP-BDG, while RULE=10.162.36.254 is the IP address we would like to manage its bandwidth

  # eth1-2:1002.VOIP-BDG
     RATE=32Kbit
     CEIL=64Kbit
      BURST=2K
      LEAF=sfq
      PRIO=1
     MARK=1002
      RULE=10.162.36.254
the rule is applied to eth1, so that each packet comes from 10.162.36.254 will have the guarantee bandwidth of 32kbps and max 64 kbps (ceil)