Juniper JUNOSE 11.0.X MULTICAST ROUTING, Configuration Manual

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NOTE: The Service-Timeout and Service-Volume attributes use values captured by
the Service Manager statistics feature to determine when a threshold is exceeded.
Therefore, you must configure and enable statistics collection to use these attributes.
See “Configuring Service Manager Statistics” on page 680.
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Service-Timeout—The number of seconds that the service session is active. You
can specify a number in the range 0–16777215. Values greater than 16777215
are recycled, starting from the initial value of 0. For example, if you specify the
value for Service-Timeout VSA as 16777218, this value is equivalent to 2 for this
VSA. A value of 0 indicates that the session never times out. A particular
Service-Timeout VSA can be used by a maximum of 2000 services.
The service-timeout threshold accuracy is within 30 seconds of the specified
value.
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Service-Volume—The total number of MB of traffic that can use the service
session. You can specify a number in the range 0–16777215 MB. Values greater
than 16777215 are recycled, starting from the initial value of 0. A value of 0
indicates that there is no limit to the amount of traffic for the session. For
example, if you specify the value for Service-Timeout and Service-Volume VSAs
as 16777216 and 16777217, these values are equivalent to 0 and 1 respectively
for these VSAs. A particular Service-Volume VSA can be used by a maximum of
1000 services.
NOTE: Service Manager terminates a session when the output byte count exceeds
the configured service-volume threshold. The output byte count is captured by the
output-stat-clacl string in the classifier list variable that you configure to collect
statistics. See “Configuring Service Manager Statistics” on page 680.
The service-volume threshold accuracy is based on a 10-second period. Service
Manager does not immediately deactivate a service session when the output
byte count reaches the service-volume threshold. Instead, Service Manager checks
the volume in 10-second intervals and deactivates a service session at the end
of the 10-second period in which the output byte count reaches the volume
threshold. For example, if a threshold is reached 4seconds into the 10-second
interval, the session continues for the remaining 6 seconds in the measuring
period and is then terminated. Therefore, the total volume equals the threshold
plus the volume during the additional 6 seconds.
When the output byte count reaches the threshold, RADIUS deactivates the service
session. You must use tags to associate threshold attributes with the Activate-Service
attribute for the service session.
Using the Deactivate-Service Attribute
You can also include the Deactivate-Service attribute in the subscriber’s RADIUS
record. The format for this attribute is the same as the format of the Activate-Service
attribute—the name of the service, including parameters. The Deactivate-Service
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Using RADIUS to Manage Subscriber Service Sessions
JUNOSe 11.0.x Broadband Access Configuration Guide