Exinda EXNV-10063, Administration Manual

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Exinda Network Orchestrator 3 Using | 287
Related Topics
Sharing bandwidth equally among as many hosts as possible
Ensuring minimum bandwidth when sharing equally among as many hosts as possible
Capping bandwidth usage per host
Capping bandwidth usage per host with minimum bandwidth
Limiting the number of hosts sharing bandwidth
Sharing bandwidth equally with a dynamic virtual circuit
You can use Dynamic Virtual Circuits to enforce fair sharing of bandwidth among the hosts, or to limit the number of
hosts on the circuit to ensure that those hosts get preferential treatment.
For fair sharing, you must specify how you would like the bandwidth in the virtual circuit to be shared among the
hosts. You can fix the per host bandwidth and have the system calculate the number of allowed hosts. Note that if there
are less than the allowed hosts, each active host can burst to gain more bandwidth (if you have configured the virtual cir-
cuit to allow bursting).
For limiting the number of hosts, you can have the system calculate the amount of bandwidth that is then allowed to
each host. You can specify an automatic calculation of the per host bandwidth and the number of allowed hosts. The
system then divides the virtual circuit bandwidth by the number of active hosts.
Adding a dynamic virtual in the Exinda Web UI
On the Add New Virtual Circuit form, do the following:
1.
Select the
Dynamic Virtual Circuit
checkbox.
2. Set the DVC settings to:
Per Host Bandwidth:
Automatically Share
Per User Max Bandwidth: 100%
Max Hosts: Auto
These settings ensure that the all hosts, up to the maximum allowed, automatically receive an equal amount of
bandwidth. When the number of hosts is less than the maximum, those hosts are able to share all bandwidth equally up
to the maximum available bandwidth.
EXAMPLE
Consider a 50 Mbps virtual circuit bandwidth.
If there is one host, it gets all 50 Mbps.
If there are two hosts, they each get 25 Mbps.
If there are 500 hosts, they each get 100 kbps.
If there are 5000 hosts, they each get 10 kbps (which is the minimum that the DVC will allow)
If there are more than 5000 hosts, the additional hosts will not match this virtual circuit.