Network

Supported OS Linux Mac OS Windows

Integration version4.1.0

Network Dashboard

Overview

The network check collects TCP/IP stats from the host operating system.

Setup

Follow the instructions below to install and configure this check for an Agent running on a host.

Installation

The network check is included in the Datadog Agent package, so you don’t need to install anything else on your server.

To collect metrics with this integration, make sure the conntrack module is activated on your host. If it’s not the case, run:

sudo modprobe nf_conntrack
sudo modprobe nf_conntrack_ipv4
sudo modprobe nf_conntrack_ipv6

Note: You may need to install the conntrack binary in the Agent image.

Configuration

  1. The Agent enables the network check by default, but if you want to configure the check yourself, edit file network.d/conf.yaml, in the conf.d/ folder at the root of your Agent’s configuration directory. See the sample network.d/conf.yaml for all available configuration options.

  2. Restart the Agent to effect any configuration changes.

Note:

Some conntrack metrics require running conntrack with privileged access to be retrieved.

Linux: Configure the following sudoers rule for this to work:

dd-agent ALL=NOPASSWD: /usr/sbin/conntrack -S

Kubernetes

Conntrack metrics are available by default in Kubernetes < v1.11 or when using the host networking mode in Kubernetes v1.11+.

In order to collect AWS ENA metrics:

  • Update network check to enable collection of AWS ENA metrics with collect_aws_ena_metrics: true.
  • Update Agent containers to use host network mode and add NET_ADMIN capabilities.

For Datadog Helm Chart deployment, update chart values with:

datadog:
  # Enable AWS ENA metrics collection for network check
  confd:
    network.yaml: |-
      init_config:
      instances:
        - collect_aws_ena_metrics: true      

# Have agent containers use host network with NET_ADMIN capability
agents:
  useHostNetwork: true
  containers:
    agent:
      securityContext:
        capabilities:
          add:
            - NET_ADMIN

For Agents manually deployed with DaemonSet, apply datadog DaemonSet patch:

spec:
  template:
    spec:
      dnsPolicy: ClusterFirstWithHostNet
      hostNetwork: true
      containers:
        - name: agent
          ports:
          - containerPort: 8125
            hostPort: 8125
            name: dogstatsdport
            protocol: UDP
          securityContext:
            capabilities:
              add:
              - NET_ADMIN

Note: You may need to add hostPort: 8125 for other containers in the DaemonSet as hostNetwork: true will apply to all containers.

Validation

Run the Agent’s status subcommand and look for network under the Checks section.

Data Collected

Metrics

system.net.aws.ec2.bw_in_allowance_exceeded
(gauge)
The number of packets shaped because the inbound aggregate bandwidth exceeded the maximum for the instance.
Shown as packet
system.net.aws.ec2.bw_out_allowance_exceeded
(gauge)
The number of packets shaped because the outbound aggregate bandwidth exceeded the maximum for the instance.
Shown as packet
system.net.aws.ec2.conntrack_allowance_available
(gauge)
The number of tracked connections that can be established before hitting the Connections Tracked allowance.
Shown as connection
system.net.aws.ec2.conntrack_allowance_exceeded
(gauge)
The number of packets shaped because connection tracking exceeded the maximum for the instance and new connections could not be established.
Shown as packet
system.net.aws.ec2.linklocal_allowance_exceeded
(gauge)
The number of packets shaped because the PPS of the traffic to local proxy services exceeded the maximum for the network interface.
Shown as packet
system.net.aws.ec2.pps_allowance_exceeded
(gauge)
The number of packets shaped because the bidirectional PPS exceeded the maximum for the instance.
Shown as packet
system.net.iface.mtu
(gauge)
The Maximum Transmission Unit (MTU) of the network interface (Linux only).
Shown as unit
system.net.iface.tx_queue_len
(gauge)
The length of the transmit queue of the network interface (Linux only).
Shown as unit
system.net.iface.num_tx_queues
(gauge)
The number of transmit queue of a network interface (Linux only).
Shown as unit
system.net.iface.num_rx_queues
(gauge)
The number of receive queue of a network interface (Linux only).
Shown as unit
system.net.bytes_rcvd
(gauge)
The number of bytes received on a device per second.
Shown as byte
system.net.bytes_sent
(gauge)
The number of bytes sent from a device per second.
Shown as byte
system.net.conntrack.acct
(gauge)
Boolean to enable connection tracking flow accounting. 64-bit byte and packet counters per flow are added.
Shown as unit
system.net.conntrack.buckets
(gauge)
Size of the hash table.
Shown as unit
system.net.conntrack.checksum
(gauge)
Boolean to verify checksum of incoming packets.
Shown as unit
system.net.conntrack.count
(gauge)
The number of connections present in the conntrack table.
Shown as connection
system.net.conntrack.drop
(count)
The number of drop in the conntrack table.
Shown as unit
system.net.conntrack.early_drop
(count)
The number of early drop in the conntrack table.
Shown as unit
system.net.conntrack.error
(count)
The number of error in the conntrack table.
Shown as unit
system.net.conntrack.events
(count)
Boolean to enable the connection tracking code will provide userspace with connection tracking events via ctnetlink.
Shown as unit
system.net.conntrack.events_retry_timeout
(gauge)

Shown as unit
system.net.conntrack.expect_max
(gauge)
Maximum size of expectation table.
Shown as unit
system.net.conntrack.found
(count)
The number of currently allocated flow entries.
Shown as unit
system.net.conntrack.generic_timeout
(gauge)
Default for generic timeout. This refers to layer 4 unknown/unsupported protocols.
Shown as unit
system.net.conntrack.helper
(gauge)
Boolean to enable automatic conntrack helper assignment.
Shown as unit
system.net.conntrack.icmp_timeout
(gauge)
Default for ICMP timeout.
Shown as second
system.net.conntrack.ignore
(count)
The number of ignored in the conntrack table.
Shown as unit
system.net.conntrack.invalid
(count)
The number of invalid in the conntrack table.
Shown as unit
system.net.conntrack.insert
(count)
The number of insertion in the conntrack table.
Shown as unit
system.net.conntrack.insert_failed
(count)
The number of failed insertion in the conntrack table.
Shown as unit
system.net.conntrack.log_invalid
(gauge)
Log invalid packets of a type specified by value.
Shown as unit
system.net.conntrack.max
(gauge)
Conntrack table max capacity.
Shown as connection
system.net.conntrack.search_restart
(count)

Shown as unit
system.net.conntrack.tcp_be_liberal
(gauge)
Boolean to mark only out of window RST segments as INVALID.
Shown as unit
system.net.conntrack.tcp_loose
(gauge)
Boolean to enable picking up already established connections.
Shown as unit
system.net.conntrack.tcp_max_retrans
(gauge)
Maximum number of packets that can be retransmitted without received an (acceptable) ACK from the destination.
Shown as packet
system.net.conntrack.tcp_timeout_close
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_close_wait
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_established
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_fin_wait
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_last_ack
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_max_retrans
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_syn_recv
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_syn_sent
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_time_wait
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_unacknowledged
(gauge)

Shown as second
system.net.conntrack.tcp_timeout
(gauge)

Shown as second
system.net.conntrack.tcp_timeout_stream
(gauge)

Shown as second
system.net.conntrack.timestamp
(gauge)
Boolean to enable connection tracking flow timestamping.
Shown as unit
system.net.packets_in.count
(gauge)
The number of packets of data received by the interface.
Shown as packet
system.net.packets_in.drop
(gauge)
The number of packet receive drops detected by the device driver. This metric is only available on Linux or Windows.
Shown as packet
system.net.packets_in.error
(gauge)
The number of packet receive errors detected by the device driver.
Shown as error
system.net.packets_out.count
(gauge)
The number of packets of data transmitted by the interface.
Shown as packet
system.net.packets_out.drop
(gauge)
The number of packet transmit drops detected by the device driver. This metric is only available on Linux or Windows.
Shown as packet
system.net.packets_out.error
(gauge)
The number of packet transmit errors detected by the device driver.
Shown as error
system.net.ip.in_receives
(gauge)
Number of received IP datagrams (including dropped datagrams) (Linux only).
Shown as datagram
system.net.ip.in_receives.count
(count)
Number of received IP datagrams (including dropped datagrams) (Linux only).
Shown as datagram
system.net.ip.in_header_errors
(gauge)
Number of received IP datagrams discarded because of IP header errors (Linux only).
Shown as datagram
system.net.ip.in_header_errors.count
(count)
Number of received IP datagrams discarded because of IP header errors (Linux only).
Shown as datagram
system.net.ip.in_addr_errors
(gauge)
Number of received IP datagrams discarded because of an invalid IP address (Linux only).
Shown as datagram
system.net.ip.in_addr_errors.count
(count)
Number of received IP datagrams discarded because of an invalid IP address (Linux only).
Shown as datagram
system.net.ip.in_unknown_protos
(gauge)
Number of received IP datagrams discarded because of an unknown IP proto (Linux only).
Shown as datagram
system.net.ip.in_unknown_protos.count
(count)
Number of received IP datagrams discarded because of an unknown IP proto (Linux only).
Shown as datagram
system.net.ip.in_discards
(gauge)
Number of received IP datagrams which were valid but discarded due to buffer issue (Linux only).
Shown as datagram
system.net.ip.in_discards.count
(count)
Number of received IP datagrams which were valid but discarded due to buffer issue (Linux only).
Shown as datagram
system.net.ip.in_delivers
(gauge)
Number of received IP datagrams delivered to IP user-protocols (including ICMP) (Linux only).
Shown as datagram
system.net.ip.in_delivers.count
(count)
Number of received IP datagrams delivered to IP user-protocols (including ICMP) (Linux only).
Shown as datagram
system.net.ip.out_requests
(gauge)
Number of output IP datagrams (Linux only).
Shown as datagram
system.net.ip.out_requests.count
(count)
Number of output IP datagrams (Linux only).
Shown as datagram
system.net.ip.out_discards
(gauge)
Number of output IP datagrams which were valid but discarded due to buffer issue (Linux only).
Shown as datagram
system.net.ip.out_discards.count
(count)
Number of output IP datagrams which were valid but discarded due to buffer issue (Linux only).
Shown as datagram
system.net.ip.out_no_routes
(gauge)
Number of output IP datagrams discarded because no route was found (Linux only).
Shown as datagram
system.net.ip.out_no_routes.count
(count)
Number of output IP datagrams discarded because no route was found (Linux only).
Shown as datagram
system.net.ip.forwarded_datagrams
(gauge)
Number of IP datagrams forwarded (Linux only).
Shown as datagram
system.net.ip.forwarded_datagrams.count
(count)
Number of IP datagrams forwarded (Linux only).
Shown as datagram
system.net.ip.reassembly_timeouts
(gauge)
Number of IP timeouts triggered during reassembly (Linux only).
Shown as timeout
system.net.ip.reassembly_timeouts.count
(count)
Number of IP timeouts triggered during reassembly (Linux only).
Shown as timeout
system.net.ip.reassembly_requests
(gauge)
Number of IP fragments received that needed to be reassembled (Linux only).
system.net.ip.reassembly_requests.count
(count)
Number of IP fragments received that needed to be reassembled (Linux only).
system.net.ip.reassembly_oks
(gauge)
Number of IP datagrams successfully reassembled (Linux only).
Shown as datagram
system.net.ip.reassembly_oks.count
(count)
Number of IP datagrams successfully reassembled (Linux only).
Shown as datagram
system.net.ip.reassembly_fails
(gauge)
Number of failures during IP reassembly (Linux only).
system.net.ip.reassembly_fails.count
(count)
Number of failures during IP reassembly (Linux only).
system.net.ip.reassembly_overlaps
(gauge)
Number of input IP fragments overlapping during reassembly (Linux only).
Shown as datagram
system.net.ip.reassembly_overlaps.count
(count)
Number of input IP fragments overlapping during reassembly (Linux only).
Shown as datagram
system.net.ip.fragmentation_oks
(gauge)
Number of output IP datagrams that were successfully fragmented (Linux only).
Shown as datagram
system.net.ip.fragmentation_oks.count
(count)
Number of output IP datagrams that were successfully fragmented (Linux only).
Shown as datagram
system.net.ip.fragmentation_fails
(gauge)
Number of output IP datagrams discarded because they couldn't be fragmented (Linux only).
Shown as datagram
system.net.ip.fragmentation_fails.count
(count)
Number of output IP datagrams discarded because they couldn't be fragmented (Linux only).
Shown as datagram
system.net.ip.fragmentation_creates
(gauge)
Number of output IP fragments generated as a result of IP fragmentation (Linux only).
system.net.ip.fragmentation_creates.count
(count)
Number of output IP fragments generated as a result of IP fragmentation (Linux only).
system.net.ip.in_no_routes
(gauge)
Number of input IP datagrams discarded because no route was found (Linux only).
Shown as datagram
system.net.ip.in_no_routes.count
(count)
Number of input IP datagrams discarded because no route was found (Linux only).
Shown as datagram
system.net.ip.in_truncated_pkts
(gauge)
Number of input IP datagrams whose actual size is smaller than the Total Length field in the IPv4 header (Linux only).
Shown as datagram
system.net.ip.in_truncated_pkts.count
(count)
Number of input IP datagrams whose actual size is smaller than the Total Length field in the IPv4 header (Linux only).
Shown as datagram
system.net.ip.in_csum_errors
(gauge)
Number of input IP datagrams with incorrect checksum (Linux only).
Shown as datagram
system.net.ip.in_csum_errors.count
(count)
Number of input IP datagrams with incorrect checksum (Linux only).
Shown as datagram
system.net.tcp.active_opens
(gauge)
Number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state (Linux or Windows only).
Shown as connection
system.net.tcp.active_opens.count
(count)
Number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state (Linux or Windows only).
Shown as connection
system.net.tcp.passive_opens
(gauge)
Number of times TCP connections have made a direct transition to the SYN-RCVD state from the LISTEN state (Linux or Windows only).
Shown as connection
system.net.tcp.passive_opens.count
(count)
Number of times TCP connections have made a direct transition to the SYN-RCVD state from the LISTEN state (Linux or Windows only).
Shown as connection
system.net.tcp.attempt_fails
(gauge)
The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state (Linux or Windows only).
Shown as connection
system.net.tcp.attempt_fails.count
(count)
The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state (Linux or Windows only).
Shown as connection
system.net.tcp.established_resets
(gauge)
The number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state (Linux or Windows only).
Shown as connection
system.net.tcp.established_resets.count
(count)
The number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state (Linux or Windows only).
Shown as connection
system.net.tcp.current_established
(gauge)
The number of TCP connections for which the current state is either ESTABLISHED or CLOSE-WAIT (Linux or Windows only).
Shown as connection
system.net.tcp.connections
(gauge)
The number of TCP connections in all states except listening connections.
Shown as segment
system.net.tcp.in_errors
(gauge)
The total number of segments received in error (e.g. bad TCP checksums) (Linux or Windows only).
Shown as packet
system.net.tcp.in_errors.count
(count)
The total number of segments received in error (e.g. bad TCP checksums) (Linux or Windows only).
Shown as packet
system.net.tcp.out_resets
(gauge)
The number of TCP segments sent containing the RST flag (Linux or Windows only).
Shown as packet
system.net.tcp.out_resets.count
(count)
The number of TCP segments sent containing the RST flag (Linux or Windows only).
Shown as packet
system.net.tcp.in_csum_errors
(gauge)
The number of TCP segments received with a bad TCP checksum (Linux only).
Shown as packet
system.net.tcp.in_csum_errors.count
(count)
The number of TCP segments received with a bad TCP checksum (Linux only).
Shown as packet
system.net.tcp.failed_retransmits
(gauge)
Number of TCP packets that failed to be retransmitted (Linux only)
Shown as packet
system.net.tcp.failed_retransmits.count
(count)
Number of TCP packets that failed to be retransmitted (Linux only)
Shown as packet
system.net.tcp.in_segs
(gauge)
The number of TCP segments received (Linux, Solaris, or Windows only).
Shown as segment
system.net.tcp.in_segs.count
(count)
Total number of received TCP segments (Linux, Solaris, or Windows only).
Shown as segment
system.net.tcp.out_segs
(gauge)
The number of TCP segments transmitted (Linux, Solaris, or Windows only).
Shown as segment
system.net.tcp.out_segs.count
(count)
Total number of transmitted TCP segments (Linux, Solaris, or Windows only).
Shown as segment
system.net.tcp.rcv_packs
(gauge)
The number of TCP packets received (BSD only).
Shown as packet
system.net.tcp.retrans_packs
(gauge)
The number of TCP packets retransmitted (BSD only).
Shown as packet
system.net.tcp.retrans_segs
(gauge)
The number of TCP segments retransmitted (Linux, Solaris, or Windows only).
Shown as segment
system.net.tcp.retrans_segs.count
(count)
Total number of retransmitted TCP segments (Linux, Solaris, or Windows only).
Shown as segment
system.net.tcp.sent_packs
(gauge)
The number of TCP packets transmitted (BSD only).
Shown as packet
system.net.tcp.listen_overflows
(gauge)
The number of times connections have overflowed the accept buffer (Linux only). Available since Agent v5.14.0.
system.net.tcp.listen_overflows.count
(count)
Total number of times connections have overflowed the accept buffer (Linux only).
system.net.tcp.listen_drops
(gauge)
The number of times connections have dropped out of listen (Linux only). Available since Agent v5.14.0.
system.net.tcp.listen_drops.count
(count)
Total number of times connections have dropped out of listen (Linux only).
system.net.tcp.backlog_drops
(gauge)
The number of packets dropped because there wasn't room in the TCP backlog (Linux only). Available since Agent v5.14.0.
Shown as packet
system.net.tcp.backlog_drops.count
(count)
Total number of packets dropped because there wasn't room in the TCP backlog (Linux only).
Shown as packet
system.net.tcp.prune_called
(gauge)
The number of times TCP prune was called (Linux only).
system.net.tcp.prune_called.count
(count)
Total number of times TCP prune was called (Linux only).
system.net.tcp.prune_rcv_drops
(gauge)
The number of received packets dropped after an unsuccessful prune (Linux only).
Shown as packet
system.net.tcp.prune_rcv_drops.count
(count)
Total number of received packets dropped after an unsuccessful prune (Linux only).
Shown as packet
system.net.tcp.prune_ofo_called
(gauge)
The number of times the out-of-order queues were pruned (Linux only).
system.net.tcp.prune_ofo_called.count
(count)
Total number of times the out-of-order queues were pruned (Linux only).
system.net.tcp.paws_connection_drops
(gauge)
The number of SYN-ACK packets dropped by PAWS (Linux only).
Shown as packet
system.net.tcp.paws_connection_drops.count
(count)
Total number of SYN-ACK packets dropped by PAWS (Linux only).
system.net.tcp.paws_established_drops
(gauge)
The number of packets dropped by PAWS in an established connection (Linux only).
Shown as packet
system.net.tcp.paws_established_drops.count
(count)
Total number of packets dropped by PAWS in an established connection (Linux only).
system.net.tcp.syn_cookies_sent
(gauge)
The number of SYN cookie packets sent (Linux only).
Shown as packet
system.net.tcp.syn_cookies_sent.count
(count)
Total number of SYN cookie packets sent (Linux only).
system.net.tcp.syn_cookies_recv
(gauge)
The number of SYN cookie packets received (Linux only).
Shown as packet
system.net.tcp.syn_cookies_recv.count
(count)
Total number of SYN cookie packets received (Linux only).
system.net.tcp.syn_cookies_failed
(gauge)
The number of failed SYN cookie packets received (Linux only).
Shown as packet
system.net.tcp.syn_cookies_failed.count
(count)
Total number of failed SYN cookie packets received (Linux only).
system.net.tcp.abort_on_timeout
(gauge)
The number of sockets closed due to timeout (maximum retransmission reached or tcp keepalive timeout) (Linux only).
system.net.tcp.abort_on_timeout.count
(count)
Total number of sockets closed due to timeout (maximum retransmission reached or tcp keepalive timeout) (Linux only).
system.net.tcp.syn_retrans
(gauge)
The number of SYN packets retransmitted (Linux only).
Shown as packet
system.net.tcp.syn_retrans.count
(count)
Total number of SYN packets retransmitted (Linux only).
system.net.tcp.from_zero_window
(gauge)
The number of sockets exiting a zero window state (Linux only).
system.net.tcp.from_zero_window.count
(count)
Total number of sockets exiting a zero window state (Linux only).
system.net.tcp.to_zero_window
(gauge)
The number of sockets entering a zero window state (Linux only).
system.net.tcp.to_zero_window.count
(count)
Total number of sockets entering a zero window state (Linux only).
system.net.tcp.tw_reused
(gauge)
The number of time wait sockets reused (Linux only).
system.net.tcp.tw_reused.count
(count)
Total number of time wait sockets reused (Linux only).
system.net.ip.reverse_path_filter
(gauge)
The number of martian packets dropped by the reverse path filter (Linux only).
Shown as packet
system.net.ip.reverse_path_filter.count
(count)
Total number of martian packets dropped by the reverse path filter (Linux only).
Shown as packet
system.net.tcp.recv_q.95percentile
(gauge)
The 95th percentile of the size of the TCP receive queue.
Shown as byte
system.net.tcp.recv_q.avg
(gauge)
The average TCP receive queue size.
Shown as byte
system.net.tcp.recv_q.count
(rate)
The rate of connections.
Shown as connection
system.net.tcp.recv_q.max
(gauge)
The maximum TCP receive queue size.
Shown as byte
system.net.tcp.recv_q.median
(gauge)
The median TCP receive queue size.
Shown as byte
system.net.tcp.send_q.95percentile
(gauge)
The 95th percentile of the size of the TCP send queue.
Shown as byte
system.net.tcp.send_q.avg
(gauge)
The average TCP send queue size.
Shown as byte
system.net.tcp.send_q.count
(rate)
The rate of connections.
Shown as connection
system.net.tcp.send_q.max
(gauge)
The maximum TCP send queue size.
Shown as byte
system.net.tcp.send_q.median
(gauge)
The median TCP send queue size.
Shown as byte
system.net.tcp4.close
(gauge)
The number of closed TCP IPv4 connections.
Shown as connection
system.net.tcp4.close_wait
(gauge)
The number of TCP IPv4 connections waiting for termination.
Shown as connection
system.net.tcp4.closing
(gauge)
The number of TCP IPv4 closing connections.
Shown as connection
system.net.tcp4.estab
(gauge)
The number of open TCP IPv4 connections.
Shown as connection
system.net.tcp4.established
(gauge)
The number of TCP IPv4 established connections.
Shown as connection
system.net.tcp4.fin_wait_1
(gauge)
The number of TCP IPv4 connections waiting for a connection termination request or an ack of a connection termination request sent previously.
Shown as connection
system.net.tcp4.fin_wait_2
(gauge)
The number of TCP IPv4 connections waiting for a connection termination request.
Shown as connection
system.net.tcp4.listen
(gauge)
The number of TCP IPv4 listening connections.
Shown as connection
system.net.tcp4.listening
(gauge)
The number of TCP IPv4 listening connections.
Shown as connection
system.net.tcp4.opening
(gauge)
The number of TCP IPv4 opening connections.
Shown as connection
system.net.tcp4.syn_recv
(gauge)
The number of TCP IPv4 connections waiting for confirming connection request.
Shown as connection
system.net.tcp4.syn_sent
(gauge)
The number of TCP IPv4 connections waiting for matching connection request.
Shown as connection
system.net.tcp4.time_wait
(gauge)
The number of TCP IPv4 closed connections waiting for delayed packets.
Shown as connection
system.net.tcp4.unconn
(gauge)
The number of TCP IPv4 connections in unconnected state.
Shown as connection
system.net.tcp4.active_opens
(gauge)
Number of times TCP IPv4 connections have made a direct transition to the SYN-SENT state from the CLOSED state (Windows only).
Shown as connection
system.net.tcp4.active_opens.count
(count)
Number of times TCP IPv4 connections have made a direct transition to the SYN-SENT state from the CLOSED state (Windows only).
Shown as connection
system.net.tcp4.connections
(gauge)
The number of TCP IPv4 connections connections in all states except listening connections (Windows only).
Shown as segment
system.net.tcp4.passive_opens
(gauge)
Number of times TCP IPv4 connections have made a direct transition to the SYN-RCVD state from the LISTEN state (Windows only).
Shown as connection
system.net.tcp4.passive_opens.count
(count)
Number of times TCP IPv4 connections have made a direct transition to the SYN-RCVD state from the LISTEN state (Windows only).
Shown as connection
system.net.tcp4.attempt_fails
(gauge)
The number of times TCP IPv4 connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state plus the number of times TCP IPv4 connections have made a direct transition to the LISTEN state from the SYN-RCVD state (Windows only).
Shown as connection
system.net.tcp4.attempt_fails.count
(count)
The number of times TCP IPv4 connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state plus the number of times TCP IPv4 connections have made a direct transition to the LISTEN state from the SYN-RCVD state (Windows only).
Shown as connection
system.net.tcp4.established_resets
(gauge)
The number of times TCP IPv4 connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state (Windows only).
Shown as connection
system.net.tcp4.established_resets.count
(count)
The number of times TCP IPv4 connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state (Windows only).
Shown as connection
system.net.tcp4.current_established
(gauge)
The number of currently established TCP IPv4 connections (Windows only).
Shown as segment
system.net.tcp4.in_errors
(gauge)
The total number of segments received in error (e.g. bad TCP IPv4 checksums) (Windows only).
Shown as packet
system.net.tcp4.in_errors.count
(count)
The total number of segments received in error (e.g. bad TCP IPv4 checksums) (Windows only).
Shown as packet
system.net.tcp4.out_resets
(gauge)
The number of TCP IPv4 segments sent containing the RST flag (Windows only).
Shown as packet
system.net.tcp4.out_resets.count
(count)
The number of TCP IPv4 segments sent containing the RST flag (Windows only).
Shown as packet
system.net.tcp4.in_segs
(gauge)
The number of TCP IPv4 segments received (Windows only).
Shown as segment
system.net.tcp4.in_segs.count
(count)
Total number of received TCP IPv4 segments (Windows only).
Shown as segment
system.net.tcp4.out_segs
(gauge)
The number of TCP IPv4 segments transmitted (Windows only).
Shown as segment
system.net.tcp4.out_segs.count
(count)
Total number of transmitted TCP IPv4 segments (Windows only).
Shown as segment
system.net.tcp4.retrans_segs
(gauge)
The number of TCP IPv4 segments retransmitted (Windows only).
Shown as segment
system.net.tcp4.retrans_segs.count
(count)
Total number of retransmitted TCP IPv4 segments (Windows only).
Shown as segment
system.net.tcp6.close
(gauge)
The number of closed TCP IPv6 connections.
Shown as connection
system.net.tcp6.close_wait
(gauge)
The number of TCP IPv6 connections waiting for termination.
Shown as connection
system.net.tcp6.closing
(gauge)
The number of TCP IPv6 closing connections.
Shown as connection
system.net.tcp6.estab
(gauge)
The number of open TCP IPv6 connections.
Shown as connection
system.net.tcp6.established
(gauge)
The number of TCP IPv6 established connections.
Shown as connection
system.net.tcp6.fin_wait_1
(gauge)
The number of TCP IPv6 connections waiting for a connection termination request or an ack of a connection termination request sent previously.
Shown as connection
system.net.tcp6.fin_wait_2
(gauge)
The number of TCP IPv6 connections waiting for a connection termination request.
Shown as connection
system.net.tcp6.listen
(gauge)
The number of TCP IPv6 listening connections.
Shown as connection
system.net.tcp6.listening
(gauge)
The number of TCP IPv6 listening connections.
Shown as connection
system.net.tcp6.opening
(gauge)
The number of TCP IPv6 opening connections.
Shown as connection
system.net.tcp6.syn_recv
(gauge)
The number of TCP IPv6 connections waiting for confirming connection request.
Shown as connection
system.net.tcp6.syn_sent
(gauge)
The number of TCP IPv6 connections waiting for matching connection request.
Shown as connection
system.net.tcp6.time_wait
(gauge)
The number of TCP IPv6 closed connections waiting for delayed packets.
Shown as connection
system.net.tcp6.unconn
(gauge)
The number of TCP IPv6 connections in unconnected state.
Shown as connection
system.net.tcp6.active_opens
(gauge)
Number of times TCP IPv6 connections have made a direct transition to the SYN-SENT state from the CLOSED state (Windows only).
Shown as connection
system.net.tcp6.active_opens.count
(count)
Number of times TCP IPv6 connections have made a direct transition to the SYN-SENT state from the CLOSED state (Windows only).
Shown as connection
system.net.tcp6.connections
(gauge)
The number of TCP IPv6 connections connections in all states except listening connections (Windows only).
Shown as segment
system.net.tcp6.passive_opens
(gauge)
Number of times TCP IPv6 connections have made a direct transition to the SYN-RCVD state from the LISTEN state (Windows only).
Shown as connection
system.net.tcp6.passive_opens.count
(count)
Number of times TCP IPv6 connections have made a direct transition to the SYN-RCVD state from the LISTEN state (Windows only).
Shown as connection
system.net.tcp6.attempt_fails
(gauge)
The number of times TCP IPv6 connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state plus the number of times TCP IPv6 connections have made a direct transition to the LISTEN state from the SYN-RCVD state (Windows only).
Shown as connection
system.net.tcp6.attempt_fails.count
(count)
The number of times TCP IPv6 connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state plus the number of times TCP IPv6 connections have made a direct transition to the LISTEN state from the SYN-RCVD state (Windows only).
Shown as connection
system.net.tcp6.established_resets
(gauge)
The number of times TCP IPv6 connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state (Windows only).
Shown as connection
system.net.tcp6.established_resets.count
(count)
The number of times TCP IPv6 connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state (Windows only).
Shown as connection
system.net.tcp6.current_established
(gauge)
The number of currently established TCP IPv6 connections (Windows only).
Shown as segment
system.net.tcp6.in_errors
(gauge)
The total number of segments received in error (e.g. bad TCP IPv6 checksums) (Windows only).
Shown as packet
system.net.tcp6.in_errors.count
(count)
The total number of segments received in error (e.g. bad TCP IPv6 checksums) (Windows only).
Shown as packet
system.net.tcp6.out_resets
(gauge)
The number of TCP IPv6 segments sent containing the RST flag (Windows only).
Shown as packet
system.net.tcp6.out_resets.count
(count)
The number of TCP IPv6 segments sent containing the RST flag (Windows only).
Shown as packet
system.net.tcp6.in_segs
(gauge)
The number of TCP IPv6 segments received (Windows only).
Shown as segment
system.net.tcp6.in_segs.count
(count)
Total number of received TCP IPv6 segments (Windows only).
Shown as segment
system.net.tcp6.out_segs
(gauge)
The number of TCP IPv6 segments transmitted (Windows only).
Shown as segment
system.net.tcp6.out_segs.count
(count)
Total number of transmitted TCP IPv6 segments (Windows only).
Shown as segment
system.net.tcp6.retrans_segs
(gauge)
The number of TCP IPv6 segments retransmitted (Windows only).
Shown as segment
system.net.tcp6.retrans_segs.count
(count)
Total number of retransmitted TCP IPv6 segments (Windows only).
Shown as segment
system.net.udp.in_datagrams
(gauge)
The rate of UDP datagrams delivered to UDP users (Linux only).
Shown as datagram
system.net.udp.in_datagrams.count
(count)
Total number of UDP datagrams delivered to UDP users (Linux only).
Shown as datagram
system.net.udp.in_errors
(gauge)
The rate of received UDP datagrams that could not be delivered for reasons other than the lack of an application at the destination port (Linux only).
Shown as datagram
system.net.udp.in_errors.count
(count)
Total number of received UDP datagrams that could not be delivered for reasons other than the lack of an application at the destination port (Linux only).
Shown as datagram
system.net.udp.no_ports
(gauge)
The rate of received UDP datagrams for which there was no application at the destination port (Linux only).
Shown as datagram
system.net.udp.no_ports.count
(count)
Total number of received UDP datagrams for which there was no application at the destination port (Linux only).
Shown as datagram
system.net.udp.out_datagrams
(gauge)
The rate of UDP datagrams sent from this entity (Linux only).
Shown as datagram
system.net.udp.out_datagrams.count
(count)
Total number of UDP datagrams sent from this entity (Linux only).
Shown as datagram
system.net.udp.rcv_buf_errors
(gauge)
The rate of UDP datagrams lost because there was no room in the receive buffer (Linux only).
Shown as error
system.net.udp.rcv_buf_errors.count
(count)
Total number of UDP datagrams lost because there was no room in the receive buffer (Linux only).
Shown as error
system.net.udp.snd_buf_errors
(gauge)
The rate of UDP datagrams lost because there was no room in the send buffer (Linux only).
Shown as error
system.net.udp.snd_buf_errors.count
(count)
Total number of UDP datagrams lost because there was no room in the send buffer (Linux only).
Shown as error
system.net.udp.in_csum_errors
(gauge)
The rate of UDP datagrams that failed checksum verification (Linux only).
Shown as error
system.net.udp.in_csum_errors.count
(count)
Total number of UDP datagrams that failed checksum verification (Linux only).
Shown as error
system.net.udp4.connections
(gauge)
The number of UDP IPv4 sockets currently opened.
Shown as connection
system.net.udp6.connections
(gauge)
The number of UDP IPv6 sockets currently opened.
Shown as connection
system.net.ena.queue.rx_cnt
(count)
The number of packets received by a queue (Linux only).
Shown as packet
system.net.ena.queue.rx_bytes
(count)
The number of bytes received by a queue (Linux only).
Shown as byte
system.net.ena.queue.rx_bad_csum
(count)
The number of packets received by a queue with an incorrect checksum (Linux only).
Shown as packet
system.net.ena.queue.rx_good_csum
(count)
The number of packets received by a queue with an correct checksum (Linux only).
Shown as packet
system.net.ena.queue.rx_csum_good
(count)
The number packets received by a queue with a good checksum (Linux only).
Shown as packet
system.net.ena.queue.rx_csum_unchecked
(count)
The number packets received by a queue with an unchecked checksum (Linux only).
Shown as packet
system.net.ena.queue.rx_rx_copybreak_pkt
(count)
The number of packets received by a queue copied to the skb header due to being smaller than the copybreak threshold (Linux only).
Shown as packet
system.net.ena.queue.rx_refil_partial
(count)
The number of times a queue had partially allocated rx buffers (Linux only).
Shown as time
system.net.ena.queue.rx_page_alloc_fail
(count)
The number of page allocation failures (Linux only).
Shown as error
system.net.ena.queue.rx_skb_alloc_fail
(count)
The number of socket buffer allocation failures (Linux only).
Shown as error
system.net.ena.queue.rx_dma_mapping_err
(count)
The number of dma mapping errors for a rx queue (Linux only).
Shown as error
system.net.ena.queue.rx_bad_desc_num
(count)
The number of times received too many descriptors (Linux only).
Shown as time
system.net.ena.queue.rx_bad_req_id
(count)
The number of times a request id was invalid on a receive queue (Linux only).
Shown as time
system.net.ena.queue.rx_empty_rx_ring
(count)
The number time the rx ring was empty for a queue (Linux only).
Shown as time
system.net.ena.queue.rx_xdp_aborted
(count)
The number XPD packets tagged as XDP_ABORTED (Linux only).
Shown as packet
system.net.ena.queue.rx_xdp_drop
(count)
The number of XDP packets tagged as XDP_DROP (Linux only).
Shown as packet
system.net.ena.queue.rx_xdp_pass
(count)
The number of XDP packets tagged as XDP_PASS (Linux only).
Shown as packet
system.net.ena.queue.rx_xdp_tx
(count)
The number of XDP packets tagged as XDP_TX (Linux only).
Shown as packet
system.net.ena.queue.rx_xdp_invalid
(count)
The number of XDP packets tagged as XDP_INVALID (Linux only).
Shown as packet
system.net.ena.queue.rx_xdp_redirect
(count)
The number of XDP packets tagged as XDP_REDIRECT (Linux only).
Shown as packet
system.net.ena.queue.tx_cnt
(count)
The number of packets sent by a queue (Linux only).
Shown as packet
system.net.ena.queue.tx_bytes
(count)
The number of bytes sent by a queue (Linux only).
Shown as byte
system.net.ena.queue.tx_dma_mapping_err
(count)
The number of dma mapping errors for a tx queue (Linux only).
Shown as error
system.net.ena.queue.tx_bad_req_id
(count)
The number of times a request id was invalid on a transmit queue (Linux only).
Shown as time
system.net.ena.queue.tx_queue_stop
(count)
The number of times a transmit queue was full and stopped (Linux only).
Shown as time
system.net.ena.queue.tx_queue_wakeup
(count)
The number of times a transmit queue was resumed after being stopped (Linux only).
Shown as time
system.net.ena.queue.tx_linearize
(count)
The number of times skb was linearized on a transmit queue (Linux only).
Shown as time
system.net.ena.queue.tx_linearize_failed
(count)
The number of skb linearization failed on a transmit queue (Linux only).
Shown as time
system.net.ena.queue.tx_doorbells
(count)
The number of submission queue doorbells written on a transmit queue (Linux only).
Shown as event
system.net.ena.queue.tx_prepare_ctx_err
(count)
The number of times prepare tx failed on a transmit queue (Linux only).
Shown as error
system.net.ena.queue.tx_llq_buffer_copy
(count)
The number of times a skb header was copied with Low Latency Queue (Linux only).
Shown as time
system.net.ena.queue.tx_missed_tx
(count)
The number of packets that timeouted in the transmit queue (Linux only).
Shown as packet
system.net.ena.queue.tx_unmask_interrupt
(count)
The number of times interrupt was unmasked in a transmit queue (Linux only).
Shown as time
system.net.ena.queue.tx_napi_comp
(count)
The number of times napi_complete was called on a queue
Shown as time
system.net.ena.queue.tx_tx_poll
(count)
The number of times the napi handler was scheduled for a queue (Linux only).
Shown as time
system.net.ena.tx_timeout
(count)
The number of transmit timeouts (Linux only).
Shown as timeout
system.net.ena.suspend
(count)
The number of times the device was suspended (Linux only).
Shown as time
system.net.ena.resume
(count)
The number of times the device was resumed (Linux only).
Shown as time
system.net.ena.wd_expired
(count)
The number of times watchdog keep-alive event expired (Linux only).
Shown as time
system.net.virtio_net.queue.rx_drops
(count)
The number of packets dropped on a receive queue (Linux only).
Shown as packet
system.net.virtio_net.queue.rx_kicks
(count)
The number of kicks sent to the hypervisor for a receive queue (Linux only).
Shown as event
system.net.virtio_net.queue.rx_packets
(count)
The number of packets received by a queue (Linux only).
Shown as packet
system.net.virtio_net.queue.rx_bytes
(count)
The number of bytes received by a queue (Linux only).
Shown as byte
system.net.virtio_net.queue.rx_xdp_drops
(count)
The number of XDP packets tagged as XDP_DROP in a receive queue (Linux only).
Shown as packet
system.net.virtio_net.queue.rx_xdp_redirects
(count)
The number of XDP packets tagged as XDP_REDIRECT in a receive queue (Linux only).
Shown as packet
system.net.virtio_net.queue.rx_xdp_tx
(count)
The number of XDP packets tagged as XDP_TX in a receive queue (Linux only).
Shown as packet
system.net.virtio_net.queue.tx_kicks
(count)
The number of kicks sent to the hypervisor for a transmit queue (Linux only).
Shown as event
system.net.virtio_net.queue.tx_packets
(count)
The number of packets sent by a transmit queue (Linux only).
Shown as packet
system.net.virtio_net.queue.tx_bytes
(count)
The number of bytes sent by a transmit queue (Linux only).
Shown as byte
system.net.virtio_net.queue.tx_xdp_tx
(count)
The number of XDP packets tagged as XDP_TX in a transmit queue (Linux only).
Shown as packet
system.net.virtio_net.queue.tx_xdp_tx_drops
(count)
The number of XDP packets tagged as XDP_DROP in a transmit queue (Linux only).
Shown as packet
system.net.hv_netvsc.queue.rx_bytes
(count)
The number of bytes received by a queue (Linux only).
Shown as byte
system.net.hv_netvsc.queue.rx_packets
(count)
The number of packets received by a queue (Linux only).
Shown as packet
system.net.hv_netvsc.queue.rx_xdp_drop
(count)
The number of XDP packets tagged as XDP_DROP in a receive queue (Linux only).
Shown as packet
system.net.hv_netvsc.queue.tx_bytes
(count)
The number of bytes sent by a queue (Linux only).
Shown as packet
system.net.hv_netvsc.queue.tx_packets
(count)
The number of packets sent by a queue (Linux only).
Shown as packet
system.net.hv_netvsc.cpu.rx_packets
(count)
The number of received packets processed by a cpu (Linux only).
Shown as packet
system.net.hv_netvsc.cpu.vf_rx_packets
(count)
The number of received packets processed by a cpu using virtual function (Linux only).
Shown as packet
system.net.hv_netvsc.cpu.rx_bytes
(count)
The number of received bytes processed by a cpu (Linux only).
Shown as byte
system.net.hv_netvsc.cpu.vf_rx_bytes
(count)
The number of received packets processed by a cpu using virtual function (Linux only).
Shown as byte
system.net.hv_netvsc.cpu.tx_packets
(count)
The number of sent packets processed by a cpu (Linux only).
Shown as packet
system.net.hv_netvsc.cpu.vf_tx_packets
(count)
The number of sent packets processed by a cpu using virtual function (Linux only).
Shown as packet
system.net.hv_netvsc.cpu.tx_bytes
(count)
The number of sent bytes processed by a cpu (Linux only).
Shown as byte
system.net.hv_netvsc.cpu.vf_tx_bytes
(count)
The number of sent packets processed by a cpu using virtual function (Linux only).
Shown as byte
system.net.hv_netvsc.tx_scattered
(count)
The number of transmits exceeding the max page count. This will trigger a socket buffer linearization to try to reduce the number of necessary pages (Linux only).
Shown as packet
system.net.hv_netvsc.tx_no_memory
(count)
The number of failed transmit due to allocation error (Linux only).
Shown as packet
system.net.hv_netvsc.tx_no_space
(count)
The number of failed transmit due to a full ring buffer (Linux only).
Shown as packet
system.net.hv_netvsc.tx_too_big
(count)
The number of dropped transmits due to exceeding the max page count even after socket buffer linearization (Linux only).
Shown as packet
system.net.hv_netvsc.tx_busy
(count)
The number of failed transmits due to busy queue (Linux only).
Shown as packet
system.net.hv_netvsc.tx_send_full
(count)
The number of time a send buffer was full (Linux only).
Shown as error
system.net.hv_netvsc.rx_comp_busy
(count)
The number of completion requests that failed (Linux only).
Shown as error
system.net.hv_netvsc.rx_no_memory
(count)
The number of failed receive due to allocation error (Linux only).
Shown as error
system.net.hv_netvsc.stop_queue
(count)
The number of times a queue was stopped (Linux only).
Shown as time
system.net.hv_netvsc.wake_queue
(count)
The number of times a queue was woken up (Linux only).
Shown as time
system.net.gve.queue.rx_posted_desc
(count)
The number of descriptors posted on a receive queue (Linux only).
Shown as time
system.net.gve.queue.rx_completed_desc
(count)
The number of descriptors completed on a receive queue (Linux only).
Shown as time
system.net.gve.queue.rx_bytes
(count)
The number of bytes sent by a receveive queue (Linux only).
Shown as byte
system.net.gve.queue.rx_dropped_pkt
(count)
The number of packets dropped because of descriptor errors (Linux only).
Shown as packet
system.net.gve.queue.rx_copybreak_pkt
(count)
The number of packets copied to the socket buffer header because they are smaller than the copybreak threshold (Linux only).
Shown as packet
system.net.gve.queue.rx_copied_pkt
(count)
The number of packets copied (Linux only).
Shown as packet
system.net.gve.queue.rx_queue_drop_cnt
(count)
The number of packets dropped. Stats from NIC (Linux only).
Shown as packet
system.net.gve.queue.rx_no_buffers_posted
(count)
The number of times there's no available buffer for posting descriptor. Stats from NIC (Linux only).
Shown as time
system.net.gve.queue.rx_drops_packet_over_mru
(count)
The number of packets dropped because it exceeds the Maximum Receive Unit. Stats from NIC (Linux only).
Shown as packet
system.net.gve.queue.rx_drops_invalid_checksum
(count)
The number of packets dropped because due to invalid checksum. Stats from NIC (Linux only).
Shown as packet
system.net.gve.queue.tx_posted_desc
(count)
The number of descriptors posted on a transmit queue (Linux only).
Shown as time
system.net.gve.queue.tx_completed_desc
(count)
The number of descriptors completed on a transmit queue (Linux only).
Shown as time
system.net.gve.queue.tx_bytes
(count)
The number of bytes sent by a transmit queue (Linux only).
Shown as byte
system.net.gve.queue.tx_wake
(count)
The number of time the transmit queue was woken up (Linux only).
Shown as time
system.net.gve.queue.tx_stop
(count)
The number of time the transmit queue was stopped (Linux only).
Shown as time
system.net.gve.queue.tx_event_counter
(count)
The number of event for this transmit queue (Linux only).
Shown as event
system.net.gve.queue.tx_dma_mapping_error
(count)
The number of Direct Memory Access mapping errors for a transmit queue (Linux only).
Shown as error
system.net.gve.tx_timeouts
(count)
The number of times a transmit queue has timeouted (Linux only).
Shown as time
system.net.gve.rx_skb_alloc_fail
(count)
The number of socket buffer allocation failures for a receive queue (Linux only).
Shown as error
system.net.gve.rx_buf_alloc_fail
(count)
The number of buffer allocation failures for a receive queue (Linux only).
Shown as error
system.net.gve.rx_desc_err_dropped_pkt
(count)
The number of packets dropped due to descriptor error (Linux only).
Shown as packet
system.net.gve.page_alloc_fail
(count)
The number of page allocation errors (Linux only).
Shown as error
system.net.gve.dma_mapping_error
(count)
The number of Direct Memory Access mapping errors (Linux only).
Shown as error

Note: system.net.conntrack metrics are available with Agent v6.12+. See the CHANGELOG for details.

Events

The Network check does not include any events.

Service Checks

The Network check does not include any service checks.

Troubleshooting

Further Reading