This feature uses an object category-map which defines individual aggregates (such as data in and out, video and data, and so on) and their mapping to individual forwarding queues.
The following output depicts a category-map configured in the subscriber management context.
*A:ALA-48>config>subscr-mgmt# info
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...
category-map "triple-play" create
category "data" create
queue 1 ingress-egress
exit
category "video" create
queue 2 egress-only
exit
category "voice" create
queue 3 ingress-egress
exit
exit
category-map "aggr-subscriber-service" create
category "data-services" create
queue 1 ingress-egress
queue 3 egress-only
exit
exit
...
----------------------------------------------
*A:ALA-48>config>subscr-mgmt#
Based on a category-map the system gathers usage information (volume/time) on a per-sla-instance-per-category basis. To do so, statistics of all queues and policers forming the category of the specified sla-instance are aggregated.
Single subscriber host (routed CPE)
Single SLA instance.
Multiple subscriber hosts on the same SAP (bridged CPE)
Single SLA instance. Several hosts use the same credit and the renewal of one causes renewal for all.
Multiple subscriber hosts on different SAP (bridged CPE)
SLA instance per host.
The per-category usage gathered as described above is compared with per-subscriber-host-per-category credit and when credit is exhausted several actions can be taken.
There are several category-maps pre-configured on the system. The category-map applicable to a specific subscriber-host is derived at the host creation from the RADIUS VSA in an authentication-response, Python script, or static configuration in the local-user-database. All subscriber-hosts belonging to the same subscriber and created on the same SAP (therefore, sharing the same sla-instance) must use the same category-map. In case of conflict, (an existing subscriber host has a different category-map than the one derived for the new host) the category-map of the last host is applied to a specific sla-instance. As a consequence, all previous information related to the status of the credit is lost.
There can be multiple queues and policers aggregated into one category. There can be up to sixteen categories in a category map.