It is easiest to think of each pair of ports as a separate emulation device. In addition to the single port-pair Linktropy 5510 and Netropy N61, both Linktropy and Netropy are available in models with multiple port pairs. Packets entering each port are directed to the appropriate link by IP source and destination address range (IPv4 or IPv6), VLAN, TCP/UPD port numbers, or other packet identifier. Each link is configured with its own bandwidth, latency, and loss parameters. Netropy offers this flexibility by creating multiple virtual links, or paths, between each pair of ports.
Or perhaps you want to run multiple tests in parallel for side-by-side comparison. Or you may want to isolate traffic from a single server to test a particular application. For example, you might want to simulate a headquarters or datacenter connected to multiple remote sites. However, some users need to apply different conditions to different flows. This keeps configuration incredibly simply and intuitive – just fill in the bandwidth, delay, and loss of the link on the browser-based form, apply changes, and your link is configured.
If a latency of 50 ms is configured, all packets get delayed by 50 ms. This is easiest to explain for the Linktropy 5510 and Netropy N61 which each have a single pair of ports.Īll traffic that enters the Linktropy 5510 on one port has the same configured conditions (bandwidth, latency, loss, etc.) applied before exiting the opposite port. The primary difference is that for each pair of ports, Linktropy simulates a single link and Netropy simulates multiple virtual links.