Operation Modes
There are two modes of operation for BWoD based on the "Priority" option setting for the application. In non-Priority mode, BWoD takes into account all traffic in the network when computing a path for a SR policy with bandwidth constraint. In this case, BW SR policies compete with all other traffic for resources and may be provided a path that is longer to avoid congestion on links along the shortest path. Note that
Note |
In non-Priority mode, BWoD should not be enabled at the same time as the Bandwidth Optimization function pack to ensure they do not conflict. |
The Priority mode allows BWoD to ignore all other traffic in the network that is not flowing through a BWoD SR policy and give its policies priority treatment when computing paths. This means that BWoD policies are only contending for resources with other BWoD policies and will likely take the shortest path unless there are links that include a significant amount of other BWoD traffic.
Note |
To mitigate any congestion that may occur by ignoring other traffic, the Bandwidth Optimization application should be used in conjunction with BWoD in the Priority mode to shift other traffic away from any hotspots caused by the BWoD traffic. |
The other traffic may then be sent over alternate (possibly longer) paths to mitigate congestion in this case, while BWoD maintains its policies along the shortest paths.