Data Forwarding Test Suites
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1 Data Forwarding Test Suites Ixia's IxAutomate Data Forwarding Test Suites are designed to enhance and provide feature rich testing above and beyond traditional standards based data plane testing. The primary objective of our Data Forwarding bundle is to stress test the data plane of your Device Under Test; control plane testing is not included. The suites included are: Advanced TCL Test Suite (ATSS)- a set of throughput and No Drop Rate tests with features not included in the RFC2544-IPv6 Benchmarking suite. We recommend that you pay special attention to the ATSS Throughput test, AllMesh test, and Traffic Tester, although each of the tests has its own unique quality. Multiport Advanced Test Suite (MATS)- The tests in this suite are designed to exercise a DUT to its maximum by configuring many one to one TX and RX pairs, all simultaneously running traffic. Each test modifies data patterns in a unique way. Quality of Service Suite- a suite designed to test the QOS feature set of your DUT. Both layer 2 VLAN priority (802.1P) and layer 3 IP TOS or DSCP bits can be set. The tests do either a many-to-one or one-to-many port mapping so that Egress and Ingress DUT queues can be overloaded as required. IP Tunnel Suite- a suite designed for throughput and latency testing of 6 to 4, ISATAP, or GRE tunnels. Additionally, maximum tunnel capacity of your DUT can be determined. Broadband Suite- a suite specifically designed for the Broadband carrier market. DSL, cable, dial, or other broadband service providers should consider this suite. The tests in this suite are designed to provide throughput and latency testing of broadband DUTs. P/N: Rev 4-3/10/ Page 1 of 12
2 Example ATSS Throughput topology. Example Broadband Suite topology. Data Forwarding Test Descriptions ATSS Suite Advanced TCL Script Suite AllMesh Test The AllMesh test is a throughput test that provides multiple full and partial mesh port mappings in the same configuration. This test has some of the most flexible stream building functionality of all the ATSS tests. VLAN IDs, MAC and IPv4 and v6 addresses can be uniquely defined and incremented as the user requires. DSCP QOS P/N: Rev 4-3/10/ Page 2 of 12
3 Throughput Test Traffic Tester Test DTM Random Interval Test Flow Setup Test IP Error Test Layer 2/Layer 3Test functionality is supported as well as DHCP v4 and v6. Results include throughput and latency on a port or a per-flow basis. Pass/Fail criteria is done on a per port map basis. The Throughput test determines throughput using a one-to-one port mapping. Similar to RFC2544 test, but with added features. This is the recommended throughput test. DHCP, multiflow per port, VLANs, QOS (DSCP or TOS) and IMIX streams can optionally be configured. Results include throughput, latency, and jitter. The Traffic Tester test performs data plane testing based on streams defined in IxExplorer. The streams can be defined manually using the Packet Stream Editor in IxExplorer, or created using the Traffic Generation Map in IxRouter. This test is recommended when custom stream configuration is required. Bidirectional instrumentation offsets can be defined. Results include throughput, latency. The DTM Random Interval test determines the throughput of a DUT with simulated Dual Tone Multimode type traffic. The test will randomly transmit bursts of packets at a specified Mbit/sec rate. The random burst gap is configured in seconds with a minimum gap time and maximum gap time between bursts. Since the burst gap is a random time, on a many-to-one configuration the port transmits will initially start at the same time, but each new burst will likely start at different times for different ports. Results include frame loss. The Flow Setup test determines the number of frames it takes to set up the fast path (sometimes referred to as forwarding database or shortcut) in the DUT. It also calculates the latency, which determines how long it takes to set up the fast path in the DUT. Results include latency. The IP Error test allows the insertion of frame errors for IP traffic in a valid traffic transmission. Errors include bad IP checksum, valid IP checksum with invalid CRC, and bad IP checksum with invalid CRC. The percentage of error frames can be configured. Results include frame in error and latency. The Layer 2/Layer 3 test transmits a mixture of Layer 2 (MAC) and Layer 3 (IP) frames of a particular frame size and calculates the throughput of the DUT. This test checks the performance of the switch P/N: Rev 4-3/10/ Page 3 of 12
4 Multiple Frame Sizes Test Throughput NAT Test IP Time to Live Test VLAN Broadcast Leakage Test VLAN Meshed Test when it receives Layer 2 (MAC) frames along with a higher application level data (IP), a situation which relates more closely with real world scenarios. Results include throughput, latency, and jitter. The Multiport Frame Sizes test determines throughput by transmitting a mixture of frames with up to eight simultaneous frames sizes. This test simulates a real-world scenario where data of any size could be transmitted through switches and routers. Results include throughput, latency, and jitter. The Throughput NAT test determines the maximum rate at which a NAT (Network Address Translation) router can perform NAT on incoming TCP or UDP packets and then forward the traffic. You can test the router's ability to translate addresses from the private address space to the public, from the public address space to the private, or both simultaneously. For each iteration the test displays the DUT's throughput plus minimum, maximum, and average latencies. Results include throughput and latency. The IP Time to Live test verifies the correct operation of the Time-To-Live (TTL) field in the IP header when traffic is forwarded to the DUT. The TTL field in the IP header is decremented every time an IP frame passes through a DUT. A few validation streams of IP data are transmitted to the switch with different TTL values. The output is measured to determine packets lost, valid CRC and correct decrementing of the TTL. Results include packet loss, CRC errors, and proper TTL value. The VLAN Broadcast Leakage test determines broadcast frame leakage from one VLAN into the next. Results include number of leaked broadcast frames. The VLAN Meshed test determines number of dropped VLAN tagged frames using a full mesh port mapping. All ports transmit and receive traffic at a specified transmit rate such that each one of the interfaces on the DUT transmits/receives frames addressed to and from all of the other interfaces under test. Frames are tagged with the appropriate VLAN ID, transmitted to the DUT, and checked on the receive port to determine receipt of the intended packets with the correct VLAN IDs. Results include frame loss, latency, and jitter. P/N: Rev 4-3/10/ Page 4 of 12
5 VLAN One to Many Test Mixed IPv4, IPv6 Throughput Test MATS Suite: Data Integrity Test Frame Size Verify Test Gap Checker Test Pattern Verify Test Port Loss Test The VLAN One to Many test determines frame loss by tagging frames with unique VLAN IDs for two VLANs. Frames are tagged with the appropriate VLAN ID, transmitted to the DUT, and checked on the receive port to determine receipt of the intended packets with the correct VLAN IDs. Results include frame loss, latency, and jitter. The Mixed IPv4, Ipv6 Throughput test is similar to the ATSS Throughput test however both IPv4 and IPv6 traffic can simultaneously be transferred in a user definable mix. A binary search routine is used to determine the maximum no drop rate. Results include maximum line rate and throughput in Mbps. Multiport Advanced TCL Suite The Data Integrity test transmits frames that contain a payload consisting of a predefined data pattern, which you can select. The test verifies that the DUT forwards the frames in the correct sequence without corrupting their payloads. Results include sequence errors, data errors for each frame size selected. The Frame Size Verify test transmits frames for each frame size within a user-specified frame size range. If frame loss is detected for a particular frame size, that frame size is reported at the end of the test. Successful frame sizes (that is, frame sizes with 0% frame loss) are not reported. Results include frame loss. The Gap Checker test transmits frames with incrementing inter-frame gaps (IFG) and reports received frames as a percentage the number of frames received for each IFG. Results include frame loss. The Pattern Verify test transmits frames with a unique, predefined set of patterns for all frame sizes and verifies that the payload field of the frames is not corrupted when they were forwarded by the DUT. The verification is performed by capturing a fixed number of frames and matching the pattern of every byte with that of the bytes transmitted for those frames. Results include pattern check per frame size. The Port Loss test is similar to the throughput test, but rather than dropping the frame size to determine the throughput, port pairs are eliminated from the port map until 0% frame loss is achieved or there are no port pairs left in the port map. Results include port pairs remaining to achieve 0% frame loss. P/N: Rev 4-3/10/ Page 5 of 12
6 Random Frame Size Test Sequence Verify Test QOS Suite Flow Ratio Test Many-to-One Test One-to-Many Test IP Tunnel Suite The Random Frame Size test transmits frames with random data in random frame size and reports the percent loss, total CRC errors received and a pass/fail status. The minimum and maximum range for random frame sizes may be configured. The capability of a DUT to handle a variety of frame sizes over a period of time with varied data is tested. Results include frame loss, CRC errors. The Sequence Verify test verifies the packet payload for each frame transmitted with incrementing sequence numbers inserted in the packet as part of the payload. On the receive side, the packets are checked for the incrementing sequence numbers and if any out-of-sequence packets are discovered, a failure condition is notified for those packets. Results include sequence errors. The Flow Ratio QOS test sets up a configuration such that many ports, each with a different priority, send traffic to one single port. The receive port may be overloaded in order to test the receipt of the highest priority frames. This test supports VLAN 802.1P and IP layer TOS/DSCP, and may be configured such that each iteration will increase or decrease the percent traffic rate for every priority. Results include frame loss, latency, jitter. The Many-to-One QOS test sets up a configuration such that many ports, each with a different priority, sends traffic to one single port. The receive port may be overloaded in order to test the receipt of the highest priority frames. This test supports both MAC and IP layer frames; priority bits may be specified at IP as TOS/DSCP priority and in the 802.1p header for VLAN priority. Results include frame loss, and latency. The one-to-many QoS test transmits multiple priorities to multiple receive ports from a single transmit port. The transmit port may be set up as a different interface speed than the receive ports. This test supports both MAC and IP layer frames; priority bits may be specified at IP as TOS/DSCP priority and in the 802.1p header for VLAN priority. Results include frame loss, latency, and jitter. P/N: Rev 4-3/10/ Page 6 of 12
7 Tunnel Capacity Test Tunnel Frame Loss Test Tunnel Throughput Test Broadband Suite Back-to-Back Test Throughput Test The IP Tunnel Capacity test determines how many frames the DUT loses with various numbers of tunnels. This test uses pairs of ports with one-to-one traffic mapping: one transmit to one receive port. You specify the number of frames to transmit, the transmit rate, and the number of tunnels to test with for each trial. Each receive port then establishes a tunnel with its corresponding DUT port. Tunnel formats supported include 6to4, ISAPTAP, GRE. Results include tunnel capacity, sequence errors, and CRC errors. The Tunnel Frame Loss test determines how many frames the DUT loses at various frame rates. This test uses IPv6 tunnels with pairs of ports with one-to-one traffic mapping; one port transmits to one receive port. You specify the number of frames to transmit, the initial transmit rate, and the percentage decrease in the frame rate. Each receive port then establishes a tunnel with its corresponding DUT port. The test iterates until it finds a rate at which the DUT can forward all the frames it receives. Tunnel formats supported include 6to4, ISAPTAP, GRE. Results include frame loss, CRC errors. The Tunnel Throughput test determines the maximum rate at which the DUT can receive and forward frames without any frame loss. Frames are initially sent at a user-specified rate. If the DUT fails to forward all the frames, the test re-transmits at successively lower rates until the DUT forwards all the frames. It then searches for a rate between the last two successful rates until it finds the highest rate at which the DUT forwards all the frames. Each receive port then establishes a tunnel with its corresponding DUT port. Tunnel formats supported include 6to4, ISAPTAP, GRE. Results include throughput. The Back to Back test is designed to measure the maximum back to back frames without packet loss. A binary search with maximum offered load will be applied. The number of sent frames will be increased or reduced to find the maximum back-to-back frame count without packet loss. Results include back-to-back frame count. The Throughput test is designed specifically for the Broadband Service Provider market. This test measures maximum throughput as either P/N: Rev 4-3/10/ Page 7 of 12
8 line rate or data rate. In addition, packet latency and data integrity can be selected. Supports DHCP (upstream/downstream and per stream VLANs (upstream/downstream). Results include line rate, latency, jitter, and CRC errors. P/N: Rev 4-3/10/ Page 8 of 12
9 Data Forwarding Suite Specifications Tests Protocol Search Binary Port Mapping Traffic Flow Pass Criteria Layer 2-MAC IP IPX IPv6 VLANs Binary Linear No Search One-to-One One-to-Many Many-to-One Bidirectional Unidirectional Throughput Latency Jitter Frame Loss Sequence Errors CRC Errors Other ATSS AllMesh Throughput Traffic Tester DTM Random Interval Flow Setup IP Error Layer2/Layer3 Multiple Frame Sizes Throughput NAT DSCP, DHCP, multiple port maps DSCP, DHCP, custom patterns Rx Errors P/N: Rev 4-3/10/ Page 9 of 12
10 IP Time to Live VLAN Broadcast Leakage VLAN Meshed VLAN One to Many Mixed IPv4 v6 Throughput MATS Data Integrity Frame Size Verify Gap Checker Pattern Verify Port Loss Random Frame Size Sequence Verify QoS Suite Flow Ratio Many to One One to Many IP Tunnel Suite Tunnel Capacity TTL Value broadcast leakage Pattern Verified Port Pairs Remaining Tunnel Capacity P/N: Rev 4-3/10/ Page 10 of 12
11 Tunnel Frame Loss Tunnel Throughput Broadband Suite Back to Back Throughput Back to Back frame count Interarrival time Requirements Windows 2000 or XP client PC with a minimum of 512 meg of RAM. Linux/Unix support- command line only TCL 8.3 or 8.4 support XM12, XM2, X16, Optixia XL10, IXIA 1600T, IXIA 400T, IXIA 250 At least one Ixia Load Module: Gigabit TXS Family, LSM1000XMV16, LSM1000XMS12/R12, LSM10G Family, LM622ATM/POS, MSM 2.5G (OC-48c), MSM10G, LM10GE700F1, LM10GE700F1-P. LMOC48C3 and SR. IxOS 4.0 or higher- not all features listed are supported on older IxOS versions Product Ordering Information All-In-One Software Bundle Data plane Software Bundle P/N: Rev 4-3/10/ Page 11 of 12
12 Base Software- Framework GUI Advanced TCL Test Suite Multiport Advanced Test Suite QOS Test Suite IP Tunnel Test Suite Broadband Test Suite This material is for informational purposes only and subject to change without notice. It describes Ixia's present plans to develop and make available to its customers certain products, features and functionality. Ixia is only obligated to provide those deliverables specifically included in a written agreement between Ixia and the customer. P/N: Rev 4-3/10/ Page 12 of 12
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