Please note: ``l3_router`` option is also compatible with external routers. In this case NFVBench will use ``EXT`` chain.
.. note:: Using a long NFVbench run test, end-to-end connectivity can be lost depending on ARP stale time SUT configuration.
-To avoid this issue, activate Gratuitous ARP stream using ``--gratuitous-arp`` or ``-garp`` option.
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+ To avoid this issue, activate Gratuitous ARP stream using ``--gratuitous-arp`` or ``-garp`` option.