tcpreplay: add page (#15286)

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

pages/common/tcpreplay.md

@@ -0,0 +1,28 @@
+# tcpreplay
+
+> Replay network traffic stored in a `pcap` file.
+> More information: <https://tcpreplay.appneta.com/>.
+
+- List available network interfaces:
+
+`tcpreplay --listnics`
+
+- Replay traffic to interface:
+
+`tcpreplay -i {{eth0}} {{traffic.pcap}}`
+
+- Replay traffic to interface and `stdout`:
+
+`tcpreplay -i {{eth0}} --verbose {{traffic.pcap}}`
+
+- Replay traffic to interface as fast as possible:
+
+`tcpreplay -i {{eth0}} --topspeed {{traffic.pcap}}`
+
+- Replay traffic to interface at given Mbps:
+
+`tcpreplay -i {{eth0}} -M {{10}} {{traffic.pcap}}`
+
+- Replay traffic to interface several times:
+
+`tcpreplay -i {{eth0}} --loop={{num_times}} {{traffic.pcap}}`