| Type of probe required |
Genalyzer G-100, G-1000 or own PC hardware (G-USB or G-HDD) |
| Number of probes needed |
At least 2 (support up to 512) |
| Number of logical network interfaces needed per probe |
At least 1 |
| Support for tests on the management interface |
Yes |
| Support for tests on VLAN interfaces |
Yes (each physical interface handles 8 VLAN:s according to 802.1q) |
| Support for tests on Q-in-Q interfaces |
No |
| Priority marking |
Layer 3 QoS: IP precedence or DSCP (defined per flow)
Layer 2 CoS: p bits according to VLAN 802.1p (defined per interface) |
| UDP test: UDP traffic is sent between two selected Genalyzer probes and a measurement is performed. The user defines expected throughput and the test fails if this is not achieved. |
Direction: Unidirectional and bidirectional
Concurrent flows: 1 per direction
Packet size: 1500 byte + Ethernet header
Unidir bandwidth: up to 94 Mbit/s with G100 and 940 Mbit/s with G1000 (1500 bytes)
Bidir bandwidth: up to 60 Mbit/s with G100 and 940 Mbit/s with G1000 (1500 bytes)
Metrics: Bandwidth, loss, reordering, one-way delay, jitter
Time accuracy: about 1 ms |
| TCP test: One TCP session is started between two selected Genalyzer probes and a measurement is performed. The user defines expected throughput and the test fails if this is not achieved. |
Direction: Unidirectional and bidirectional
Unidir bandwidth: up to 100 Mbit/s with G100 and 980 Mbit/s with G1000 (1500 bytes)
Bidir bandwidth: up to 70 Mbit/s with G100 and 910 Mbit/s with G1000 (1500 bytes)
Concurrent flows: 1 per direction
TCP version: Vegas
Metric: Throughput |
| VoIP test: VoIP traffic is sent between two selected Genalyzer probes and a measurement is performed. If a MOS value of less than 4 is achieved, the test fails. |
Direction: Bidirectional
Concurrent flows: Up to 50 VoIP streams per direction with G100 and up to 300 VoIP calls with G1000
Packet sizes and bandwidths: According to ITU-T G.711, G.723, G.729 and GSM-EFR
Speech quality: ITU-T E-model, enhanced for jitter effects
Metrics: Bandwidth, loss, reordering, one-way delay, jitter
Time accuracy: about 1 ms |
| Videoconferencing test: Traffic similar to videoconferencing is sent between two selected Genalyzer probes and a measurement is performed. Thresholds according to ITU-T Y.1541 are used. |
Direction: Bidirectional
Concurrent flows: 1 per direction
Packet size: 700 bytes + Ethernet header
Bandwidth: 0,768 – 5,0 Mbit/s
Metrics: Bandwidth, loss, reordering, one-way delay, jitter
Time accuracy: about 1 ms |
| Multiple QoS test: First, one TCP session is started between two probes, then after 60 s, a configurable number of VoIP streams are added. After another 60 s, one video-conferencing stream is added. |
Direction: Bidirectional
Concurrent flows: 1 TCP session, 1 videoconferencing session and up to 20 VoIP calls per direction.
Bandwidth TCP: support for rate limiting on TCP
Packet sizes/bandwidth, VoIP: According to ITU-T G.711, G.723, G.729 and GSM-EFR
Packet size/bandwidth, Video: 700 bytes, 0,768 – 5,0 Mbit/s
Speech quality: ITU-T E-model, enhanced for jitter effects
Metrics: Bandwidth, loss, reordering, one-way delay, jitter |
