关于v5 portal认证 计费心跳

背景：portal认证成功后，默认每3分钟。会收到nas发来的radius数据包，包内容是流量信息

问题：我如何调整nas发过来的 数据周期间隔，比如1分钟发一次。

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AcctStatusType InterimUpdate 

AVP type: UserName zxl

AVP type: NASIdentifier WX3010E-AC 

AVP type: NASPort 16777218 

AVP type: NASPortId 0100000000000002 

AVP type: NASPortType unknow code 19 

AVP type: CallingStationId C2-AD-64-F8-BF-44 

AVP type: CalledStationId 74-1F-4A-D2-15-80:WIFI_ZXL 

AVP type: AcctStatusType InterimUpdate 

AVP type: AcctAuthentic 1 

AVP type: AcctSessionId 123051913153908200e66 

AVP type: FramedIPAddress 18.18.2.202 

AVP type: NASIPAddress 18.18.2.10 

AVP type: EventTimestamp []byte{0x64, 0x67, 0x8, 0x18} 

AVP type: AcctSessionTime 540 

AVP type: AcctDelayTime 1 

AVP type: AcctInputOctets 3278631 

AVP type: AcctInputPackets 19152 

AVP type: AcctOutputOctets 63458420 

AVP type: AcctOutputPackets 46865 

AVP type: AcctInputGigawords 0 

AVP type: AcctOutputGigawords 0 

AVP type: VendorSpecific {Vendor: 2011, Attr: 26, Value: []byte{0x0, 0x0, 0x0, 0x9}}