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100 System Administration
Group Bandwidth Limit Policy
The Group Bandwidth Limit Policy allows the you to assign a common bandwidth rate limiting
policy to a group of subscriber devices. All devices within the group share the total bandwidth
allocated to the policy.
The Group Bandwidth Limit Policy feature defines the following vendor-specific attributes
(VSAs):
Group Bandwidth Limit Policy – Operation
The NSE maintains a collection of all installed group bandwidth policies. The collection is
indexed by the bandwidth policy ID provided by the RADIUS server. The collection can store
as many policy records as the number of licensed subscriber devices. All subscriber devices
sharing the same group bandwidth policy ID belong to the same group. A subscriber device can
participate in only one bandwidth-limiting group at a time.
When a login is performed to an account that returns a bandwidth policy ID that does not yet
exist in the NSE, a new policy record is created and inserted into the aforementioned
collection. The subscriber authorized by the Access-Accept is associated with the newly
installed bandwidth policy ID, and the bandwidth limits returned are invoked.
When the Access-Accept for a subscriber contains a bandwidth policy ID already present on
NSE, the subscriber is associated with the existing group policy. All subscribers that are now
members of the group share the total bandwidth allocated to the policy.
If at some point a login is performed to an account that returns the policy ID for an existing
policy, but also returns bandwidth values different than those currently allocated for that policy,
the policy will be updated with the new values found in the Access-Accept. Thus, the latest
Access-Accept determines the current rates for the entire group.
Nomadix
VSA #
Name Role/Value
19 GROUP_BW_POLICY_ID Defines the ID the for the group policy. Integer
between 1 and 16777215, inclusive.
20 GROUP_BW_MAX_UP Defines the total upstream bandwidth allowed
for the group in Kilobits per second. Integer
value. 0 is interpreted as unlimited.
21 GROUP_BW_MAX_DOWN Defines the total downstream bandwidth
allowed for the group in Kilobits per second.
Integer value. 0 is interpreted as unlimited.