How to limit network traffic with cisco routers

Guidelines to Limit Network Traffic with Cisco Routers Cisco Routers: Cisco routers provide access to all applications and services and all integrated technologies. Helps optimizing branch services on a single platform and delivers an optimal application experience across branches.

Why to limit the bandwidth?

There are various reasons for limiting bandwidth on a Cisco switch port. The speed of the switch port always poses an ultimate limitation.

Suppose you work for an internet service provider in a co-location facility, your access to the internet increases by 1-Mb. The switch port in the question is 100Mb full duplex. In this case the end device becomes limited to the switch port whatever increment of 1-Mb the customer has paid for.

These were some of the examples of how these configurations could be useful, but there are many other possibilities for the same. Let’s look at some of the commands which are used to create the bandwidth limit in a Cisco switch.

How to configure a bandwidth limit?

In the Cisco IOS on a catalyst switch, there is an interface mode of command called shape round-robin queue bandwidth and while being more specific it is also called srroqueue bandwidth. While we enter the command with a question mark it will display the command option.

As the command options are limited. While we are focusing on the limited options we must keep in mind that we also use srr-queue bandwidth command to shape and share the bandwidth.

Suppose you have a 100-Mb Ethernet port on a crystal switch. If we are selling the bandwidth on the port, and the customer has bought 10 Mb of bandwidth. In this case it is obvious that you want to limit the outbound width on the given port to 10 Mb instead of 100 Mb. To do so you will have to go to interface configuration mode on the switch port and then apply the srr-queue bandwidth limited command.

Certain variations on bandwidth limiting: There are various ways to accomplish the same thing related to Cisco IOS. One reason for this could be to manipulate the port speed. But if you want to enhance the speed of the Ethernet port to 10 Mb then you would also limit the customer using the speed of 10 commands. However, even after this you will not get the same level of performance from 10 Mb from the Ethernet port.

In case you want a port speed that is less than 10 Mb? In such case you could easily limit the speed of the port to 10 Mb and then you can use the srr-queue bandwidth to limit 90 commands to limit the outbound speed of the port only to 1 Mb. This Cisco router does not support srr-queue command. But there are several different QoS options that will accomplish the same thing. A common method that can be used is rate limit command.

Cisco customer service is always available at customers support. They are available at your door step as and when you need them. They have skilled technicians who carry out each and every work remotely without even disturbing the customer.

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