UPDATE: now its https://www.keysight.com/us/en/products/network-test/network-test-hardware/network-emulator-ii.htmlhttps://www.insight.com/en_US/shop/product/946-0070/IXIA/946-0070/Ixia-Network-Emulator-II--network-emulation-device/
I have used IXIA...