Traffic shaping or limiting the download & upload speeds of a network is usually performed by the ISPs for maintaining a QoS (“Quality of service”). For instance, I have an ADSL connection setup with a wireless router and it has a monthly bandwidth limit of 20GB.
You can implement bandwidth restrictions using traffic shaping policies. You can apply default traffic shaping policies to categories or individual applications. To view or change the traffic shaping policy associated with a category, click . To view the applications within a category, click . The tests can detect traffic shaping in both upstream and downstream directions separately. The tests can also detect whether application flows are shaped based on their port numbers or their packets’ payload. If you are interested in knowing more, feel free to read their NSDI 2010 white paper. How to test? Glasnost: Results from tests for BitTorrent traffic shaping Home Glasnost Tests Create your own test Results Contact. Over the last three years, a large number of users from locations around the world have used our tool, Glasnost, to test whether their BitTorrent traffic is being shaped by ISPs. Traffic shaping is a method of limiting the bandwidth going through an interface. Typically, traffic shaping will have a committed information rate (CIR) measured in bits/second (bps). For example, if you purchase a 100Mbps circuit, the CIR is 100,000,000 bps.
traffic-shape 1048576. sh traffic-shaping queues and statistics makes everything appear as though all is good. When I test however, I consistantly am able to sustain WAY over the limit specified for long durations. For testing I'm using a 158MB random noise file. Typically I pull about 800KB/sec and sustain that speed.
Traffic shaping is not a common ANIC feature but is very helpful in specific circumstances. Generally speaking, traffic shaping is a bandwidth management technique which delays some or all types of traffic in order to bring them into compliance with a desired traffic profile. Configuring traffic policing and traffic shaping in this manner enables customers to use the same policy map for multiple interfaces with differing amounts of bandwidth. Configuring traffic policing and shaping on the basis of a percentage of bandwidth is accomplished by using the police (percent) and shape (percent) commands. Traffic Shaping Question in LoadTest Tools. In the load test scenarios view, there is a tab for "Users" which allows you to set the total number of users. If you I recently configured a 3G mobile network emulator using a fixed traffic shaping profile, as described by Pat in the documentation of dummynet. Along with his 3G specs of 1.6Mbps down, 768Kbps up, and 300ms RTT, I also added a packet loss factor of 0.2%.
This means traffic shaping and firewall rules will only apply after Splash page authentication has occurred successfully. If firewall or traffic shaping rules are configured on an SSID, use the " Block all access until sign-on is complete " captive portal strength setting to apply the principle of least privilege to the SSID.
In contrast to policing, traffic shaping retains excess packets in a queue and then schedules the excess for later transmission over increments of time. The result of traffic shaping is a smoothed packet output rate. Shaping implies the existence of a queue and of sufficient memory to buffer delayed packets, while policing does not. Important note on cFos Traffic Shaping. cFos Traffic Shaping is now in calibration and learning phase. This is necessary to determine exact connection speed and performance so as to ensure optimal download and upload rates will be attained while the ping remains low. Depending on how much you use your connection, this phase can last for a few traffic-shape 1048576. sh traffic-shaping queues and statistics makes everything appear as though all is good. When I test however, I consistantly am able to sustain WAY over the limit specified for long durations. For testing I'm using a 158MB random noise file. Typically I pull about 800KB/sec and sustain that speed. This recipe also explains how to configure traffic shaping to set a maximum bandwidth limit for uploads and/or downloads to 200 kb/s. 1. Enabling Traffic Shaping. Go to System > Feature Select and under Additional Features enable Traffic Shaping. Two new traffic shaping menus, Traffic Shapers and Traffic Shaping Policy, will appear under Policy