EDSG Information Query over CoA

To enable the portal server to provide service information query and status acknowledgement, EDSG services support the query of basic user information and EDSG service information through CoA messages. The portal server sends CoA requests for information query to the BRAS, and the BRAS returns CoA responses carrying the information (such as the service status, duration, and traffic volume) to the portal server. The 0x04 command word in the HW-Command-Mode (26-34) attribute carried in CoA responses is used to query EDSG service information.

Figure 1 Process of information query over CoA

**Table 1** RADIUS attributes supported by CoA messages
No.	Attribute	Description
1	HW-Command-Mode (26-34)	Query type and query object status
2	HW-Account-Info (26-184)	User's EDSG service information, including the service name, traffic volume, and online duration
3	NAS-Port-Id (87)	User's login interface identifier
4	NAS-Identifier (32)	BRAS identifier
5	Framed-IP-Address (8)	User's IPv4 address
6	Framed-IP-Netmask (9)	User's IPv4 address mask
7	Framed-IPv6-Prefix (97)	User's IPv6 ND prefix
8	Delegated-IPv6-Prefix (123)	User's delegated IPv6 prefix
9	HW-Framed-IPv6-Address (26-158)	User's IPv6 address
10	HW-Input-Peak-Information-Rate (26-3)	User's upstream PIR
11	HW-Output-Peak-Information-Rate (26-6)	User's downstream PIR
12	HW-Input-Committed-Information-Rate (26-2)	User's upstream CIR
13	HW-Output-Committed-Information-Rate (26-5)	User's downstream CIR
14	HW-Input-Peak-Burst-Size (26-77)	User's upstream PBS
15	HW-Output-Peak-Burst-Size (26-78)	User's downstream PBS
16	HW-Input-Committed-Burst-Size (26-1)	User's upstream CBS
17	HW-Output-Committed-Burst-Size (26-4)	User's downstream CBS
18	HW-Subscriber-QoS-Profile (26-17)	Name of the subscriber QoS profile used by a user
19	HW-QOS-Profile-Name (26-31)	Name of the common QoS profile used by a user
20	HW-Down-Qos-Profile-Name (26-182)	Name of the downstream QoS profile used by a user
21	Idle-Timeout (28)	User's idle-timeout parameter