Basic Metrics

These metrics are provided in all three modes (see Metric Modes).

Prefix

All metrics have the prefix networkobservability_.

Universal Labels

All metrics include node and Cluster metadata with the labels:

• cluster
• instance (Node name)

List of Metrics

Plugin: packetforward (Linux)

Metrics enabled when packetforward plugin is enabled (see Metrics Configuration).

Name	Description	Extra Labels
forward_count	forwarded packet count	direction
forward_bytes	forwarded byte count	direction

Label Values

Possible values for direction:

• ingress (incoming traffic)
• egress (outgoing traffic)

Plugin: dropreason (Linux)

Metrics enabled when dropreason plugin is enabled (see Metrics Configuration).

Metric Name	Description	Extra Labels
drop_count	dropped packet count	direction, reason
drop_bytes	dropped byte count	direction, reason

Label Values

Possible values for direction:

• ingress (incoming traffic)
• egress (outgoing traffic)

Possible values for reason:

• IPTABLE_RULE_DROP
• IPTABLE_NAT_DROP
• TCP_CONNECT_BASIC
• TCP_ACCEPT_BASIC
• TCP_CLOSE_BASIC
• CONNTRACK_ADD_DROP
• UNKNOWN_DROP

Plugin: linuxutil (Linux)

Metrics enabled when linuxutil plugin is enabled (see Metrics Configuration).

Metric Name	Description	Extra Labels
tcp_state	TCP currently active socket count by TCP state (from netstats utility)	state
tcp_connection_remote	TCP currently active socket count by remote address (from netstats utility)	address (IP:port)
tcp_connection_stats	TCP connection statistics (from netstats utility)	statistic_name
ip_connection_stats	IP connection statistics (from netstats utility)	statistic_name
udp_connection_stats	UDP connection statistics (from netstats utility)	statistic_name
interface_stats	interface statistics (from ethtool utility)	interface_name, statistic_name

Label Values

Possible values for TCP state:

• UNKNOWN
• ESTABLISHED
• SYN_SENT
• SYN_RECV
• FIN_WAIT1
• FIN_WAIT2
• TIME_WAIT
• "" (represents CLOSE)
• CLOSE_WAIT
• LAST_ACK
• LISTEN
• CLOSING

Possible values for statistic_name (for metric tcp_connection_stats):

• TCPTimeouts
• TCPTSReorder
• ResetCount
• and many others (full list here)

Possible values for statistic_name (for metric ip_connection_stats):

• InNoECTPkts
• InNoRoutes
• InOctets
• OutOctets

Possible values for statistic_name (for metric udp_connection_stats):

• ACTIVE (currently active socket count)

Possible values for statistic_name (for metric interface_stats):

• tx_packets
• rx_packets
• rx0_cache_full (or rx1_, etc.)
• tx0_nop (or tx1_, etc.)
• rx_dropped
• tx_dropped
• rx_comp_full
• tx_send_full
• and many others (as seen by running ethtool -S <interface_name> on the Node)

Plugin: dns (Linux)

Metrics enabled when dns plugin is enabled (see Metrics Configuration).

Metric Name	Description	Extra Labels
dns_request_count	number of DNS requests by query	query_type, query
dns_response_count	number of DNS responses by query, error code, and response value	query_type, query, return_code, response, num_response

Plugin: conntrack (Linux)

Metrics enabled when conntrack plugin is enabled and enableConntrackMetrics is set to true (see Configuration).

Metric Name	Description	Extra Labels
conntrack_packets_tx	Total packets transmitted tracked by conntrack
conntrack_packets_rx	Total packets received tracked by conntrack
conntrack_bytes_tx	Total bytes transmitted tracked by conntrack
conntrack_bytes_rx	Total bytes received tracked by conntrack
conntrack_total_connections	Total number of tracked connections

Node Connectivity Metrics (Linux/Windows)

These metrics are available when node connectivity monitoring is enabled.

Metric Name	Description	Extra Labels
node_connectivity_status	Connectivity status between nodes (1=connected, 0=not)	source_node_name, target_node_name
node_connectivity_latency_seconds	Latency in seconds between nodes	source_node_name, target_node_name

Plugin: hnsstats (Windows)

Metrics enabled when hnsstats plugin is enabled (see Metrics Configuration).

Name	Description	Extra Labels
forward_count	forwarded packet count (from HNS)	direction
forward_bytes	forwarded byte count (from HNS)	direction
drop_count	dropped packet count (from HNS or VFP)	direction, reason
tcp_connection_stats	several TCP connection statistics (from VFP)	statistic_name
tcp_flag_gauges	TCP packet count by flag (from VFP)	direction, flag
windows_hns_stats	HNS statistics (packets sent/received)	direction

Note: drop_bytes is not available on Windows. Only drop_count is supported.

Label Values

Possible values for direction:

• ingress (incoming traffic)
• egress (outgoing traffic)

Possible values for reason:

• endpoint (dropped by HNS endpoint)
• aclrule (dropped by ACL firewall rule in VFP)

Possible values for statistic_name (for metric tcp_connection_stats):

• ResetCount
• ClosedFin
• ResetSyn
• TcpHalfOpenTimeouts
• Verified
• TimedOutCount
• TimeWaitExpiredCount

Possible values for TCP flag:

• SYN
• SYNACK
• FIN
• RST