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TEST_NAME=DecNwTtl DUMP_HOST=h2 DUMP_IF=h2-eth0 RYU_APP=test_ip_ttl PCAP_MZ="-t icmp ttl=64 -P $TEST_NAME -c 3 -b 00:00:00:00:00:02" PCAP_FILTER="icmp && ip.ttl==63"