sipp: add README

README.md

@@ -2,3 +2,7 @@
 
 ## /ssl
 Prebuilt assets helpers (openssl/libressl)
+
+## /sipp
+
+[SIPp](https://github.com/SIPp/sipp) tooling with PCAP examples (jitter etc.)

sipp/README.md

@@ -0,0 +1,35 @@
+# SIPp - Protocol and jitter testing
+
+## Build
+
+```bash
+git clone https://github.com/SIPp/sipp
+cd sipp
+cmake -B build -DUSE_PCAP=1
+cmake --build build -j
+```
+
+## Usage
+
+```bash
+sudo build/sipp -sf scenarios/uac_pcap.xml 127.0.0.1 -m 1
+```
+
+## PCAP's
+
+### Manipulating
+
+Reorder
+
+```bash
+editcap -r g711a.pcap tmp1 2-3 # dump packets 2-3
+editcap -r -t 0.07 g711a.pcap tmp2 1 # dump packet 1 and manipulate timestamp
+editcap g711a.pcap tmp3 1-3 # exclude packets 1-3
+mergecap -w out.pcap -a tmp1 tmp2 tmp3
+```
+
+Drop
+
+```bash
+editcap g711a.pcap out.pcap 2-3 # drop packets 2-3
+```