Capping bandwidth usage per host
Use the following instructions to cap bandwidth usage on a per host basis.
On the Add New Virtual Circuit form, do the following:
- Select the Dynamic Virtual Circuit checkbox.
- Set the DVC settings to:
- Per Host Bandwidth: Automatically Share
- Per User Max Bandwidth: No burst; set limit to your manual cap value
- Max Hosts: Auto
This will ensure that the hosts will automatically share the bandwidth equally amongst the maximum number of hosts, however no host will use more than the specified cap. If there are many hosts they will share the bandwidth equally, even if it means very little bandwidth per host.
EXAMPLE
Consider a 50 Mbps virtual circuitlogical definitions that partition a a physical network circuit and used to determine what traffic passes through it and how much bandwidth and a 1 Mbps cap per host.
- If there is one host, it gets 1 Mbps.
- If there are 50 hosts, they each get 1 Mbps.
- If there are 200 hosts, they each get 250 kbps.
- If there are 5000 hosts, they each get 10 kbps.
- If there are more than 5000 hosts, the additional hosts will not match this virtual circuit.
Can I mistakenly prevent fully utilizing the bandwidth?
If you set a bandwidth cap per host by setting the Per User Max Bandwidth and you set the maximum number of hosts, it is possible that you prevent access to excess bandwidth.
bandwidth-cap-per-host x number-of-hosts = allocated-bandwidth
If the allocated bandwidth is less than the virtual circuit bandwidth, then you are making some of the bandwidth inaccessible.
Related Topic
Capping bandwidth usage per host with minimum bandwidth