news: feature-5412

Signed-off-by: Shiraz McClennon <shiraz@smcclennon.com>

Author: smcclennon

news/feature-5412.md

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+`cisco`: Added support for Cisco Nexus NXOS 9.3 syslog format.
+
+The parser now recognises NXOS 9.3 timestamps in `YYYY MMM DD HH:MM:SS` format and handles the different
+sequence number prefix (`: ` instead of `seqno: `) used by NXOS 9.3 compared to traditional IOS formats.
+
+Example Cisco configuration:
+
+- NXOS: `(config)# logging server <syslog-ng-server-ip> port 2000`
+- IOS: `(config)# logging host <syslog-ng-server-ip> transport udp port 2000`
+
+Example syslog-ng configuration:
+
+```
+@include "scl.conf"
+
+source s_cisco {
+    network(ip(0.0.0.0) transport("udp") port(2000) flags(no-parse));
+};
+
+parser p_cisco {
+    cisco-parser();
+};
+
+destination d_placeholder {
+    # Define your destination here
+};
+
+log {
+    source(s_cisco);
+    parser(p_cisco);
+    destination(d_placeholder);
+};
+```