IxLoad EPC Wi-Fi Offload Testing

Transcription

1 IxLoad EPC Wi-Fi Offload Testing Mobile network traffic is growing exponentially, and service providers must manage their networks efficiently to meet consumer demand. Wi-Fi, one of the small cell technologies, appeals to many operators as a cost-effective means of offloading large amounts of mobile data traffic while delivering a variety of new services. From QoS to policies to monetization, IxLoad lets operators customize test scenarios to measure critical elements of performance and profitability. The Ixia solution equips service providers and equipment manufacturers to isolate and emulate key components of the LTE core and charging systems delivering: EPC node isolation, IMS testing, Diameter and Wi-Fi offload testing. Highlights Simulates multiple UEs and access points (APs) over the Capwap protocol Simulates multiple UEs and AP controllers using the Extensible Authentication Protocol Simulates multiple UEs and Mobile Access Gateways using PMIPv6 and Radius authentication Supports the Extensible Authentication Protocol with SIM, AKA, TLS and TTLS authentication Supports all L7 server activities running on either GGSN or PGW simulation, as well as plain IP Supports GGSN emulation on Gn (GTPv1 based) Supports PGW emulation on S2a and S2b (GTPv2 or PMIPv6 based) Supports MAG-coordinated simulation over PMIPv6 and Radius Supports encapsulated DHCP and L7 traffic over: plain IP (v4), L2oGRE, L3oGRE, VLANs/QinQ Allows customization and flexible configuration of TLVs and AVPs via dedicated user interface Supports SWu and SWn simulation for testing epdg Agoura Road Calabasas, CA USA Tel Document No.: Rev B April Page 1

2 Key Features The IxLoad Wi-Fi offload solution covers several topologies: Emulates wireless LAN (WLAN) access networks and controllers to assess the scalability of Wi-Fi offload gateways (WAGs) while measuring QoE for differentiated services provided through the EPC. Emulates WLAN access points (APs) to assess the scalability of AP controllers while measuring QoE for differentiated services provided through the EPC. Page 2

3 Emulates Mobile Access Gateways (MAGs) to assess the scalability of Local Mobility Anchor (LMA) while measuring QoE for differentiated services provided through the EPC. Provides coordinated simulation between Radius (towards AAA Server) and PMIPv6 (towards LMA) interfaces. Emulates UEs and access points over SWu interface to assess the scalability of epdg while measuring QoE for differentiated services provided through the EPC. IxLoad plugin incorporates the ability to simulate epdg S2b interface towards PGW being able to segment the network in order to test PGW under performance conditions. Page 3

4 Emulates UEs and access points over SWn interface to validate epdg behavior under high-performance conditions. Includes EoGRE over IPSec topology. Page 4

5 UE Authentication Mode configuration Access Point Encapsulation Type configuration Page 5

6 CAPWAP TLV Editor Page 6

7 Protocol Specifications RFC Details RFC2865 RFC3748 RFC4186 RFC4187 RFC2131 RFC2784 RFC5145 Remote Authentication Dial In User Service (RADIUS) Extensible Authentication Protocol (EAP) Extensible Authentication Protocol Method for Global System for Mobile Communications (GSM) Subscriber Identity Modules (EAP-SIM) Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement (EAP-AKA) Dynamic Host Configuration Protocol Generic Routing Encapsulation (GRE) Control And Provisioning of Wireless Access Points (CAPWAP) Protocol Specification 3GPP Technical Specifications Interface Specification GTP based S2a TS TS PMIPv6 based S2a PMIPv6 RFC5213 TS TS Gn GGSN TS TS Page 7

8 Statistics and Measurements All statistics and measurements listed below are available in real time, as well as in comma separated value (CSV) format, at the end of a test. Real-time statistics displayed during the execution of the WAG testing Page 8

9 Trusted Wi-Fi Client 3GPP Sessions Initiated Sessions Succeeded Sessions Failed Sessions Active DHCPv4 Discovers Sent Offers Received Requests Sent ACKs Received NACKs Received Releases Sent Declines Sent Enabled Interfaces Addresses Discovered RADIUS Authentication Success Authentication Failures Authentication Timeouts Access Requests Tx Access Challenges Rx Access Accepts Rx Access Rejects Rx Accounting Start Requests Tx Accounting Start Responses Rx Initiated Sessions Rate Successful Sessions Rate Failed Sessions Rate Setup Success Rate Clients Ready Clients Outstanding Clients Up Clients Fail Clients Down Sessions Initiated Sessions Succeeded Sessions Failed Accounting Stop Requests Tx Accounting Stop Responses Rx Accounting Update Requests Tx Accounting Update Responses Rx Accounting Timeouts Requests Initiated Requests Succeeded Requests Outstanding Requests Timed Out CAPWAP CAPWAP Access Point - General Sessions Initiated CAPWAP Access Point - Session Management Messages Sessions Succeeded Discovery Request TX Discovery Response RX Discovery Request Retry Join Request TX Join Response RX Join Request Retry Sessions Failed Sessions Active Configuration Status Request TX Configuration Status Response RX Configuration Status Request Retry Change State Event Request TX Change State Event Response RX Change State Event Request Retry Page 9

10 CAPWAP CAPWAP Access Point - Control Channel Management Echo Request Tx Echo Response Rx Echo Response Tx Echo Request Rx Echo Request Retry CAPWAP Access Point - Rates Control Successful Activation Rate MAG General Sessions Initiated Sessions Succeeded HSS Updates Succeeded HSS Updates Failed Sessions Failed Lifetime Expired IPv4 Sessions Succeeded PDN Type Changed IPv6 Sessions Succeeded Bearers Initiated Bearers Succeeded Bearers Failed Bearers Tear Down Initiated Bearers Tear Down Succeeded Bearers Tear Down Failed Active Bearers Max Active Bearers HSS Updates Initiated PDN Type Changed (Network Preference) PDN Type Changed (Single Address Bearer Only) Sessions Lost Dedicated Bearers Initiated Dedicated Bearers Succeeded Dedicated Bearers Failed Dedicated Bearers Terminated Active Dedicated Bearers Max Active Dedicated Bearers Session Management Messages Create Session Request Tx Create Session Response Rx Create Session Request Retry Delete Session Request Tx Delete Session Response Rx Delete Session Request Retry Bearer Management Messages Create Bearer Response Tx Create Bearer Request Rx Update Bearer Response Tx Update Bearer Request Rx Modify Bearer Failure Indication Rx Modify Bearer Command Tx Modify Bearer Command Retry Delete Bearer Response Tx Delete Bearer Request Rx Path Management Messages (Control) Echo Request Tx Echo Response Rx Echo Request Retry Echo Response Tx Echo Request Rx Page 10

11 MAG Path Management Messages (User) GTP-u Echo Request Rx GTP-u Echo Response Tx Latency Buckets CS <= 5ms CS > 5ms and <= 10ms DS <= 5ms DS > 5ms and <= 10ms CS > 10ms and <= 15ms DS > 10ms and <= 15ms CS > 15ms and <= 20ms DS > 15ms and <= 20ms CS > 20ms and <= 30ms DS > 20ms and <= 30ms CS > 30ms and <= 50ms DS > 30ms and <= 50ms CS > 50ms and <= 75ms DS > 50ms and <= 75ms CS > 75ms and <= 100ms DS > 75ms and <= 100ms CS > 100ms DS > 100ms Other Messages Version Not Supported Indication Tx Version Not Supported Indication Rx Rates Control Successful Activation Rate (tunnels/s) Successful Deactivation Rate (tunnels/s) Successful HSS Updates Rate (HSS Updates/s) Summary Active UEs Active PDN Connections Active Dedicated Bearers User Plane Traffic GTP-u packets Tx GTP-u packets Rx GTP-u kb Tx on default bearers GTP-u kb Rx on default bearers GTP-u packets Tx on default bearers GTP-u kb Tx on dedicated bearers GTP-u packets Rx on default bearers GTP-u kb Rx on dedicated bearers GTP-u packets Tx on dedicated bearers GTP-u kb Tx (IPv4) GTP-u packets Rx on dedicated bearers GTP-u kb Rx (IPv4) GTP-u kb Tx GTP-u kb Tx (IPv6) GTP-u kb Rx GTP-u kb Rx (IPv6) Data Rates (kbps) GTP-u kbps Tx GTP-u kbps Rx GTP-u kbps Tx on dedicated bearers GTP-u kbps Rx on dedicated bearers GTP-u kbps Tx on default bearers GTP-u kbps Rx on default bearers Packet Rates GTP-u packets/s Tx GTP-u packets/s Rx GTP-u packets/s Tx on default bearers GTP-u packets/s Rx on default bearers GTP-u packets/s Tx on dedicated bearers GTP-u packets/s Rx on dedicated bearers Page 11

12 MAG Data Rates per IP type (kbps) GTP-u kbps Tx GTP-u kbps Rx GTP-u kbps Tx (IPv4) GTP-u kbps Rx (IPv4) GTP-u kbps Tx (IPv6) GTP-u kbps Rx (IPv6) Data Errors GTP-u TX Packets Dropped GTP-u RX Packets Dropped GTP-u TX Error Indication Messages GTP-u RX Error Indication Messages GTP-u TX Packets Dropped by QoS Enforcement Binding Update Failure Total Service Authorization Failed Not LMA For This Mobile Node Not Authorized For Home Network Prefix Missing Home Network Prefix Option Missing MN Identifier Option Missing Handoff Indicator Option Missing Access Tech Type Option GRE Key Required Not Authorized For IPv4 Mobility Service Not Authorized For IPv4 Home Address Not Authorized For IPv6 Mobility Service Multiple IPv4 Home Address Assignment Not Supported Unknown Cause RADIUS Authentication Success Authentication Failures Authentication Timeouts Access Requests Tx Access Challenges Rx Access Accepts Rx Access Rejects Rx Accounting Start Requests Tx Accounting Start Responses Rx Accounting Stop Requests Tx Accounting Stop Responses Rx Accounting Update Requests Tx Accounting Update Responses Rx Accounting Timeouts Requests Initiated Requests Succeeded Requests Outstanding Requests Timed Out Page 12

13 Ordering Information Part Number Description IxLoad ADVNET-EAP-RADIUS, Optional Software, Layer 4-7 Performance Test Application; Enables EAP SIM/AKA Radius authenticated emulated mobile subscribers IxLoad, EPC-WIFI-OFFLOAD, Optional Software, Layer 4-7 Performance Test Application; Enables Wifi Offload testing with EAP Radius mobile subscribers, Gn GGSN and S2A PGW emulated EPC-WIFI-AP-CAPWAP, Optional Software, Layer 4-7 Performance Test Application; Enables Wi-Fi Offload testing, AP simulation using CAPWAP protocol EPC-WIFI-MAG-RADIUS, Optional Software, Layer 4-7 Performance Test Application; Enables Wifi Offload testing of Local Mobility Anchor (LMA), emulation of MAG using PMIPv6 and RADIUS ADVNET-UE-SWU, Optional Software, Layer 4-7 Performance Test Application; Enables UE/IPSEC Emulation on SWu interface for Untrusted WiFi ADVNET-PGW-S2B, Optional Software, Layer 4-7 Performance Test Application; Enables epdg Emulation on S2B interface for Untrusted WiFi EPC-WIFI-OFFLOAD-SWn, Optional Software, Layer 4-7 Performance Test Application; Enables EoGRE/IPSEC Access Point simulation on SWn interface for Untrusted WiFi Page 13