Understanding RFC 2544-Based Benchmarking Tests on MX Series Routers and SRX Series Firewalls

SUMMARY The RFC 2544-based benchmarking test methodology assesses different parameters that are defined in service-level agreements (SLAs). By measuring the performance availability, transmission delay, link bursts, and service integrity, a carrier provider can certify that the working parameters of the deployed Ethernet circuit comply with the SLA and other defined policies.

RFC 2544 defines a series of tests that can be used to describe the performance characteristics of a network-interconnecting device, such as a router, and outlines specific formats to report the results of the tests. These tests can be used to benchmark interconnected network devices and devise a guideline or a measurement pattern to analyze the health and efficiency of the network devices. These tests are the standard benchmarking tests for Ethernet networks and are known as RFC 2544-based benchmarking tests. These tests measure throughput, latency, frame loss rate, and bursty frames. The test methodology enables you to define various parameters such as the different frame sizes to be examined (64, 128, 256, 512, 1024, 1280, and 1518 bytes), the test time for each test iteration (10 seconds through 1,728,000 seconds), and the frame format (UDP-over-IP).

An RFC 2544-based benchmarking test is performed by transmitting test packets from a device that functions as the generator or the initiator (which is also called the originator). These packets are sent to a device that functions as a reflector, which receives and returns the packets to the initiator.

Starting from Junos OS Release 15.1, MX104 Series routers also perform verification of signatures on the received test frames. Starting in Junos OS Release 21.1R1, SRX300 and SRX550HM devices perform verification of signatures on the received test frames. By default, when the router or device receives a test packet that does not have the signature pattern, the packet is dropped. If you generate test traffic using a third-party vendor tool instead of an ACX Series router, you can disable signature verification. To disable signature verification, configure the disable-signature-check statement at the [edit services rpm rfc2544-benchmarking tests test-name test-name] hierarchy level.

For MX80 and MX104 Universal Routing Platforms and, starting from Junos OS Release 16.1, MX240, MX480, and MX960 Universal Routing Platforms with MPC1 (MX-MPC1-3D), MPC2 (MX-MPC2-3D), and the 16-port 10-Gigabit Ethernet MPC (MPC-3D-16XGE-SFP), support the reflector function and the corresponding benchmarking tests.

Starting from Junos OS Release 17.1R1, the reflector function and the corresponding benchmarking tests are supported on MX Series routers with MPC3E (MX-MPC3E-3D), MPC3E-NG (MX-MPC3E-3D-NG), MPC4E (MPC4E-3D-32XGE-SFPP and MPC4E-3D-2CGE-8XGE), MPC5E (MPC5E-40G10G, MPC5EQ-40G10G, MPC5E-100G10G, and MPC5EQ-100G10G), and MPC6E (MX2K-MPC6E).

Starting in Junos OS Release 20.2R1, the RFC 2544-based benchmarking tests are supported on MX240, MX480, and MX960 routers with the MPC10E (MPC10E-15C-MRATE and MPC10E-10C-MRATE) line card and on MX2010 and MX2020 routers with the MX2K-MPC11E line card.

Junos OS Release 20.3R1 extends support for the RFC 2544-based benchmarking tests onto the MX240, MX480, and MX960 routers with the MPC7E-MRATE or MPC7E-10G line card, onto the MX2008, MX2010, and MX2020 routers with the MX2K-MPC8E or MX2K-MPC9E line card, and onto the MX204 and MX10003 (with the LC2103 card) routers.

Starting in Junos OS Release 21.1R1, the IPv4 Layer 3 reflector function and the corresponding benchmarking tests are supported on the SRX300 and SRX550HM devices.

Table 1 describes the different MX network topologies in which the benchmarking test is supported.

Table 2 lists the interfaces and the reflection type on which the benchmarking tests are supported.

All active RFC2544-based benchmarking tests are stopped when any of the following events take place:

• System events, such as Packet Forwarding Engine restarts, Routing Engine restarts, and so on.

• Test interface change events, such as deactivation and reactivation of the interface, disabling and enabling of the interface, child link events for aggregated interfaces and so on.

  After the benchmarking tests are stopped, the test states of the tests are removed and the user can restart the same test. Other ongoing tests on other interfaces are not interrupted.