Accounting on-line charging

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Alc-Credit-Control-CategoryMap

Refers to a preconfigured category-map (configure subscriber-mgmt category-map category-map-name) that contains credit control information for up to 16 predefined categories The category-map-name can also be assigned using the LUDB, or credit-control-policy if the attribute is omitted. This attribute is ignored if the host has no credit-control-policy defined in its SLA profile instance. Strings with lengths above the limits are treated as a setup failure.

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Alc-Credit-Control-Quota

Defines a volume and time quota per category.

Either volume or time monitoring is supported and the operational credit-type (volume or time) is taken from the category map, if both the volume and time quota in the attribute are non-zero. The operational credit-type becomes time if the volume quota is zero, and volume if the time quota is zero. The Credit Expired becomes true and the corresponding Out Of Credit action is triggered, if both the time and volume quota are zero in the initial Authentication-Accept or CoA. The value zero for both the time and volume quotas in additional Authentication Accepts (triggered by a credit refresh or re-authentication) is interpreted as no extra credit granted. This does not influence the current available credit, where non-zero values reset the current available credit.

For CoA requests, both the Alc-Credit-Control-Category Map and Alc-Credit-Control-Quota attributes must be included. For RADIUS-Access Accepts this is not mandatory and either both or one of the two attributes can come from pre-defined values from the node.

Volume quota values outside the defined limits are treated as an error condition. Time quota values above the defined limits are accepted and capped at the maximum value. If more attributes are present than allowed by the limits, it is treated as a setup failure.

For Distributed Subscriber Management (DSM), this VSA only supports volume quota. Time quota must always be set to zero. Two predefined categories are supported:

• hard category

  This removes a UE upon exhaustion.

• soft category

  This takes any of the following actions:

  • sends a triggered Radius Accounting Interim Update, if configured under the configure aaa isa-radius-policy name acct-update-triggers soft-quota-exhausted context.
  • applies an ISA DSM filter, if configured under the configure service {ies|vprn} service-id subscriber-interface ip-int-name group-interface ip-int-name wlan-gw vlan-tag-ranges range range distributed-sub-mgmt soft-quota-exhausted-filter context.

The related attribute Alc-Credit-Control-CategoryMap is not used for DSM.

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Alc-Credit-Control-CategoryMap

string

32 chars

For example:

Alc-Credit-Control-CategoryMap = MyCatMap

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Alc-Credit-Control-Quota

string

(2^64 - 1) volume value

(2^32 - 1) time value

16 attributes

For DSM: 1B to 1TB volume value

0 (fixed) time value

volume-value volume-units|time-value time- units|category-name

<volume-value>: converted in bytes and stored in 64 bit counter

- value '0' = no volume credit

- value between 1 Byte and (2^64 - 1 / 18446744073709551615) Bytes

<time-value>: converted in seconds and stored in 32 bit counter

- value '0' = no time credit

- value between 1 second and (2^32 - 1 / 4294967295) seconds

<volume-units>:

- in byte (B or units omitted), kilobyte (K or KB), megabyte (M or MB), gigabyte (G or GB)

- a combination (10GB200MB20KB|) of different volume units is not allowed.

<time-units>:

- in seconds (s or units omitted), in minutes (m), in hours (h), in days (d)

- a combination of different time units is allowed with some restrictions: 15m30s is accepted while 15m60s is not.

For example:

500 Mbytes volume credit for category cat1 and 1 day, 2 hours, 3 minutes and 4 seconds time credit for category cat2

Alc-Credit-Control-Quota += 500MB|0|cat1,

Alc-Credit-Control-Quota += 0|1d2h3m4s|cat2

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Alc-Credit-Control-CategoryMap

0

0-1

0-1

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Alc-Credit-Control-Quota

0+

0+

0+