Feature/nat 212 213

This PR covers NAT-212 and NAT-213.

docs/source/glossary.md

 # Glossary of terms
 
 {.glossary}
+BGP
+: Border Gateway Protocol: a path vector routing protocol described in 
+<a href="https://datatracker.ietf.org/doc/html/rfc4271" target="_blank">RFC 4271</a>.
+
 CRUD
 : Create, Read, Update, Delete
 
@@ -26,5 +30,9 @@ LSO
 NET
 : Network Entity Title: used for {term}`IS-IS` routing.
 
+SNMP
+: Simple Network Management Protocol: a protocol that's used for gathering data, widely used for network management and
+monitoring.
+
 WFO
 : <a href="https://workfloworchestrator.org/" target="_blank">Workflow Orchestrator</a>