Queries the Internet service provider (ISP) for a volumetric attack.

Note This operation is inapplicable to resource exhaustion attacks on websites or connection flood attacks.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes DescribeDDosEventIsp

The operation that you want to perform. Set the value to DescribeDDosEventIsp.

EventType String Yes defense

The type of the attack event that you want to query. Valid values:

  • defense: attack events that trigger traffic scrubbing
  • blackhole: attack events that trigger blackhole filtering
Ip String Yes 203.***. ***.199

The IP address of the attacked Anti-DDoS Pro or Anti-DDoS Premium instance.

StartTime Long Yes 1598948471

The beginning of the time range to query. This value is a UNIX timestamp representing the number of seconds that have elapsed since the epoch time January 1, 1970, 00:00:00 UTC.

Note You can call the DescribeDDosAllEventList operation to query the beginning time of all attack events.

All Alibaba Cloud API operations must include common request parameters. For more information about common request parameters, see Common parameters.

For more information about sample requests, see the "Examples" section of this topic.

Response parameters

Parameter Type Example Description
Isps Array of EventIsp

The ISPs for the volumetric attack.

InPkts Long 230

The number of request packets that were sent from the ISP.

Isp String 1000323

The code of the ISP. Valid values:

  • 100017: China Telecom
  • 100026: China Unicom
  • 100025: China Mobile
  • 100027: China Education and Research Network
  • 100020: China Mobile Tietong
  • 1000143: Dr.Peng Telecom & Media Group
  • 100080: Beijing Gehua CATV Network
  • 1000139: National Radio and Television Administration
  • 100023: Oriental Cable Network
  • 100063: Founder Broadband
  • 1000337: China Internet Exchange
  • 100021: 21Vianet
  • 1000333: Wasu Media Holding
  • 100093: Wangsu Science & Technology
  • 1000401: Tencent
  • 100099: Baidu
  • 1000323: Alibaba Cloud
  • 100098: Alibaba
RequestId String C4A3BCD1-4A32-4342-941A-4745AE69508C

The ID of the request.


Sample requests

http(s)://[Endpoint]/? Action=DescribeDDosEventIsp
&Ip=203. ***. ***.199
&<Common request parameters>

Sample success responses

XML format


JSON format

    "RequestId": "C4A3BCD1-4A32-4342-941A-4745AE69508C",
    "Isps": [
            "InPkts": 230,
            "Isp": "1000323"
            "InPkts": 24,
            "Isp": "100098"

Error codes

For a list of error codes, visit the API Error Center.