Telemetry and Logging

Telemetry exposes what the simulated network is doing. netverdict includes syslog-style event dispatch, SNMP/trap surfaces, NetFlow-style flow tracking, and SIEM/SPL helper surfaces for analysis scenarios.

Support level

Area	Level	Notes
Syslog	Behaviour model	Event log plus UDP/514 dispatch path.
SNMP	Behaviour model	Community config and trap dispatch.
NetFlow	Config / behaviour model	Flow-tracking surface for supported scenarios.
SIEM / SPL	Config model	Search/helper surface for security analysis labs.
Full exporters	Not modelled	No byte-perfect collector protocol implementation.

Standards coverage

Standard	Coverage	Notes
RFC 5424	Partial	Syslog-style event semantics.
SNMPv2c	Partial	Community/trap concepts.
NetFlow v5/v9/IPFIX	Minimal	Flow concept, not full exporter packet format.

Feature matrix

Feature	Status	Notes
Local event log	Supported	Runtime events are stored for inspection.
Remote syslog host	Supported	Dispatch path represented.
SNMP community	Supported	Access config surface.
SNMP metadata	Supported	Location and contact fields are stored/emitted where vendor surface exists.
SNMP traps	Behaviour model	Trap buffer / dispatch.
NetFlow monitor/exporter	Partial	Config and flow surfaces.
SPL helper	Config model	Analysis helper, not a protocol runtime.

Vendor command matrix

Command	IOS-style	Junos-style	VyOS-style	Notes
logging host 192.0.2.50	Supported	Partial	Partial	Remote syslog.
logging trap warnings	Supported	Partial	Partial	Severity filter.
snmp-server community public RO	Supported	Partial	Partial	SNMP community.
snmp-server host 192.0.2.50 traps	Supported	Partial	Partial	Trap receiver.
set snmp location Lab One	n/a	Supported	n/a	Junos commit sets SNMP location.
set snmp contact noc@example.test	n/a	Supported	n/a	Junos commit sets SNMP contact.
set snmp community LAB authorization read-only	n/a	Supported	n/a	Junos read-only community.
set snmp trap-group LAB targets 10.0.0.254	n/a	Supported	n/a	Junos trap target.
set system syslog host 10.0.0.20 any info	n/a	Supported	n/a	Junos syslog host.
ip flow monitor FLOW input	Partial	n/a	Partial	NetFlow attachment.
show logging	Supported	Partial	Partial	Event log.

Behaviour notes

Telemetry is generated from simulator events. It is valuable for debugging and security labs because it ties messages to deterministic state transitions.

Examples

Canonical example

configure terminal
logging host 192.0.2.50
logging trap warnings
snmp-server community public RO
snmp-server host 192.0.2.50 traps
end
show logging

Vendor styles

IOS-style

logging host 192.0.2.50
logging trap warnings
snmp-server community public RO
snmp-server host 192.0.2.50 traps

Junos-style

set system syslog host 192.0.2.50 any warning
set snmp community public authorization read-only
set snmp trap-group NMS targets 192.0.2.50

VyOS-style

set system syslog host 192.0.2.50 facility all level warning
set service snmp community public authorization ro
set service snmp trap-target 192.0.2.50

Known limits

Full MIB support, SNMP walks/sets, IPFIX templates, collector behaviour, log format parity, and SIEM product emulation are not supported.