Monitoring

Faucet can be monitored in a number of ways. Both the faucet and gauge services export instrumentation data via a built-in Prometheus exporter which can be consumed by Prometheus. By default the Prometheus exporter is available on port 9302, this can be changed with Environment variables (FAUCET_PROMETHEUS_PORT and FAUCET_PROMETHEUS_ADDR).

Gauge also collects conventional switch statistics (port counters, port state, etc) and can export these to a number of different databases (including Prometheus). For information on configuring gauge see the Gauge configuration section.

Prometheus metrics

Below is a list of the metrics exported by faucet and gauge.

Exported by faucet

Faucet prometheus metrics

Metric

Type

Description

faucet_pbr_version

gauge

Faucet PBR version

faucet_config_reload_requests_total

counter

number of config reload requests

faucet_config_load_error

gauge

1 if last attempt to re/load config failed

faucet_config_hash

info

file hashes for last successful config

faucet_config_hash_func

gauge

algorithm used to compute config hashes

faucet_config_applied

gauge

fraction of DPs that we have tried to apply config to

faucet_event_id

gauge

highest/most recent event ID to be sent

faucet_config_reload_warm_total

counter

number of warm, differences only config reloads executed

faucet_config_reload_cold_total

counter

number of cold, complete reprovision config reloads executed

of_ignored_packet_ins_total

counter

number of OF packet_ins received but ignored from DP (due to rate limiting)

of_unexpected_packet_ins_total

counter

number of OF packet_ins received that are unexpected from DP (e.g. for unknown VLAN)

of_packet_ins_total

counter

number of OF packet_ins received from DP

of_non_vlan_packet_ins_total

counter

number of OF packet_ins received from DP, not associated with a FAUCET VLAN

of_vlan_packet_ins_total

counter

number of OF packet_ins received from DP, associated with a FAUCET VLAN

of_flowmsgs_sent_total

counter

number of OF flow messages (and packet outs) sent to DP

of_errors_total

counter

number of OF errors received from DP

of_dp_connections_total

counter

number of OF connections from a DP

of_dp_disconnections_total

counter

number of OF connections from a DP

vlan_hosts_learned

gauge

number of hosts learned on a VLAN

port_vlan_hosts_learned

gauge

number of hosts learned on a port and VLAN

vlan_neighbors

gauge

number of L3 neighbors on a VLAN (whether resolved to L2 addresses, or not)

vlan_learn_bans

gauge

number of times learning was banned on a VLAN

faucet_config_table_names

gauge

number to names map of FAUCET pipeline tables

faucet_packet_in_secs

histogram

FAUCET packet in processing time

faucet_valve_service_secs

histogram

FAUCET valve service processing time

bgp_neighbor_uptime

gauge

BGP neighbor uptime in seconds

bgp_neighbor_routes

gauge

BGP neighbor route count

learned_macs

gauge

MAC address stored as 64bit number to DP ID, port, VLAN, and n (discrete index)

port_status

gauge

status of switch ports

port_stack_state

gauge

state of stacking on a port

port_learn_bans

gauge

number of times learning was banned on a port

port_lacp_status

gauge

status of LACP on port

dp_status

gauge

status of datapaths

of_dp_desc_stats

gauge

DP description (OFPDescStatsReply)

stack_cabling_errors_total

counter

number of cabling errors detected in all FAUCET stacks

stack_probes_received_total

counter

number of stacking messages received

dp_dot1x_success_total

counter

number of successful authentications on dp

dp_dot1x_failure_total

counter

number of authentications attempts failed on dp

dp_dot1x_logoff_total

counter

number of eap-logoff events on dp

port_dot1x_success_total

counter

number of successful authentications on port

port_dot1x_failure_total

counter

number of authentications attempts failed on port

port_dot1x_logoff_total

counter

number of eap-logoff events on port

Exported by gauge

Gauge prometheus metrics

Metric

Type

Description

faucet_pbr_version

gauge

Faucet PBR version

dp_status

gauge

status of datapaths

of_port_tx_packets

gauge

of_port_rx_packets

gauge

of_port_tx_bytes

gauge

of_port_rx_bytes

gauge

of_port_tx_dropped

gauge

of_port_rx_dropped

gauge

of_port_rx_errors

gauge

of_port_reason

gauge

of_port_state

gauge

of_port_curr_speed

gauge

of_port_max_speed

gauge