IPv6 basics commands

Destination count

Total number of destination addresses.

FIB entry count

Total number of IPv6 FIB entries.

Destination

Destination address.

Prefix length

Prefix length of the destination address.

Nexthop

Next hop address.

Flags

Route flag:

·     U—Usable route.

·     G—Gateway route.

·     H—Host route.

·     B—Black hole route.

·     D—Dynamic route.

·     S—Static route.

·     R—Recursive route.

·     F—Fast re-route.

Time stamp

Time when the IPv6 FIB entry was generated.

Label

Inner MPLS label. For IPv6 FIB entries for the public network, this field displays Null.

Interface

Outgoing interface.

Token

Label switched path index number.

Field

Description

IPv6 FIB table upper limit

Maximum number of entries supported by the IPv6 FIB table.

Time

Time when the IPv6 FIB table usage was recorded.

IPv6 FIB count

Number of IPv6 FIB entries.

Usage

Usage of IPv6 FIB entries, which is the ratio of the real-time IPv6 FIB entry count to the IPv6 FIB table upper limit.

Field

Description

bad code

Number of received packets with error codes.

too short

Number of received packets with the length too short.

checksum error

Number of received packets with checksum errors.

bad length

Number of received packets with incorrect packet size.

path MTU changed

Number of received packets with path MTU changed.

destination unreachable

Number of destination unreachable packets that have been received.

too big

Number of received or sent oversized packets.

parameter problem

Number of received or sent packets with incorrect parameters.

echo request

Number of received or sent echo request packets.

echo reply

Number of received or sent echo reply packets.

neighbor solicit

Number of received NS packets.

neighbor advertisement

Number of received NA packets.

router solicit

Number of received RS packets.

router advertisement

Number of received RA packets.

redirect

Number of received or sent redirect packets.

router renumbering

Number of received packets with router renumbering.

unreachable no route

Number of sent packets to report the error that no route is available to the destination.

unreachable admin

Number of sent packets to report the error that the communication with the destination is administratively prohibited.

unreachable beyondscope

Number of sent packets to report the error that the source addresses is beyond the scope.

unreachable address

Number of address unreachable packets that have been sent.

unreachable no port

Number of port unreachable packets that have been sent.

time exceed transit

Number of sent packets to report the time exceeded in transmit error.

time exceed reassembly

Number of sent packets to report the fragment reassembly time exceeded error.

ratelimited

Number of packets that were not sent out because of the rate limit.

other errors

Number of sent packets with other errors.

Vlan-interface2 current state

Physical state of the interface:

·     Administratively DOWN—The interface has been administratively shut down by using the shutdown command.

·     DOWN—The interface is administratively up but its physical state is down, possibly because of a connection or link failure.

·     UP—The administrative and physical states of the interface are both up.

Line protocol current state

Link layer state of the interface:

·     DOWN—The link layer protocol state of the interface is down.

·     UP—The link layer protocol state of the interface is up.

IPv6 is enabled

IPv6 is enabled on the interface. This feature is automatically enabled after an IPv6 address is configured for an interface.

link-local address

Link-local address of the interface.

Global unicast address(es)

Global unicast addresses of the interface.

IPv6 address states:

·     TENTATIVE—Initial state. DAD is being performed or is to be performed on the address.

·     DUPLICATE—The address is not unique on the link.

·     PREFERRED—The address is preferred and can be used as the source or destination address of a packet. If an address is in this state, the command does not display the address state.

·     DEPRECATED—The address is beyond the preferred lifetime but in the valid lifetime. It is valid, but it cannot be used as the source address for a new connection. Packets destined for the address are processed correctly.

If a global unicast address is not manually configured, the following notations indicate how the address is obtained:

·     AUTOCFG—Stateless autoconfigured.

·     DHCP—Assigned by a DHCPv6 server.

·     EUI-64—Manually configured EUI-64 IPv6 address.

·     RANDOM—Random address automatically generated.

If the address is a manually configured anycast address, it is noted with ANYCAST.

valid lifetime

Specifies how long autoconfigured global unicast addresses using a prefix are valid.

preferred lifetime

Specifies how long autoconfigured global unicast addresses using a prefix are preferred.

Joined group address(es)

Addresses of the multicast groups that the interface has joined.

MTU

MTU of the interface.

ND DAD is enabled, number of DAD attempts

DAD is enabled.

·     If DAD is enabled, this field displays the number of attempts to send an NS message for DAD (set by using the ipv6 nd dad attempts command).

·     If DAD is disabled, this field displays ND DAD is disabled. To disable DAD, set the number of attempts to 0.

ND reachable time

Time during which a neighboring device is reachable.

ND retransmit interval

Interval for retransmitting an NS message.

Hosts use stateless autoconfig for addresses

Hosts obtained IPv6 addresses through stateless autoconfiguration.

InReceives

Received IPv6 packets, including error messages.

InTooShorts

Received IPv6 packets that are too short. For example, the received IPv6 packet is less than 40 bytes.

InTruncatedPkts

Received IPv6 packets with a length less than the payload length field specified in the packet header.

InHopLimitExceeds

Received IPv6 packets with a hop count exceeding the hop limit field specified in the packet header.

InBadHeaders

Received IPv6 packets with incorrect basic headers.

InBadOptions

Received IPv6 packets with incorrect extension headers.

ReasmReqds

Received IPv6 fragments.

ReasmOKs

Number of reassembled IPv6 packets.

InFragDrops

Received IPv6 fragments that are discarded because of certain errors.

InFragTimeouts

Received IPv6 fragments that are discarded because the amount of time they stay in the system buffer exceeds the specified interval.

OutFragFails

IPv6 packets that fail to be fragmented on the output interface.

InUnknownProtos

Received IPv6 packets with unknown or unsupported protocol type.

InDelivers

Received IPv6 packets that are delivered to user protocols (such as ICMPv6, TCP, and UDP).

OutRequests

Local IPv6 packets sent by IPv6 user protocols.

OutForwDatagrams

IPv6 packets forwarded by the interface.

InNoRoutes

Received IPv6 packets that are discarded because no matching route can be found.

InTooBigErrors

Received IPv6 packets that fail to be forwarded because they exceeded the Path MTU.

OutFragOKs

Fragmented IPv6 packets on the output interface.

OutFragCreates

Number of IPv6 fragments on the output interface.

InMcastPkts

Received IPv6 multicast packets.

InMcastNotMembers

Received IPv6 multicast packets that are discarded because the interface is not in the multicast group.

OutMcastPkts

IPv6 multicast packets sent by the interface.

InAddrErrors

Received IPv6 packets that are discarded due to invalid destination addresses.

InDiscards

Received IPv6 packets that are discarded due to resource problems rather than packet errors.

OutDiscards

IPv6 packets that fail to be sent due to resource problems rather than packet errors.

*down: administratively down

The interface has been administratively shut down by using the shutdown command.

(s): spoofing

Spoofing attribute of the interface. The link protocol state of the interface is up, but the link is temporarily established on demand or does not exist.

Interface

Name of the interface.

Physical

Physical state of the interface:

·     *down—The interface has been administratively shut down by using the shutdown command.

·     down—The interface is administratively up but its physical state is down, possibly because of a connection or link failure.

·     up—The administrative and physical states of the interface are both up.

Protocol

Link layer protocol state of the interface:

·     down—The network layer protocol state of the interface is down.

·     up—The network layer protocol state of the interface is up.

IPv6 Address/Prefix

IPv6 address and prefix of the interface.

·     If multiple global unicast addresses are configured, this field displays the lowest address.

·     If no global unicast address is configured, this field displays the link-local address.

·     If no address is configured, this field displays Unassigned.

Available IPv6 address states include:

·     TENTATIVE—Initial state. DAD is being performed or is to be performed on the address.

·     DUPLICATE—The address is not unique on the link and is not usable.

·     PREFERRED—The address is preferred and can be used as the source or destination address of a packet. If an address is in this state, the command does not display the address state.

·     DEPRECATED—The address is beyond the preferred lifetime but in the valid lifetime. It is valid, but it cannot be used as the source address for a new connection. Packets destined for the address are processed correctly.

VPN instance

This field is not supported in the current software version.

Name of the VPN instance to which the interface belongs. If the interface does not belong to any VPN instance, this field displays hyphens (--).

Description

Description of the interface. If no description is configured, this field displays hyphens (--).

Number

Prefix ID.

Type

Prefix type:

·     Static—Static IPv6 prefix.

·     Dynamic—Dynamic IPv6 prefix.

Prefix

Prefix and its length. If no prefix is obtained, this field displays Not-available.

Preferred lifetime 90 sec

Preferred lifetime in seconds. For a static IPv6 prefix, this field is not displayed.

valid lifetime 120 sec

Valid lifetime in seconds. For a static IPv6 prefix, this field is not displayed.

Local Addr

Local IPv6 address.

Foreign Addr

Peer IPv6 address.

Protocol

Protocol number.

PCB

PCB index.

Total RawIP socket number

Total number of IPv6 RawIP sockets.

Connection info

Connection information, including the source and destination IPv6 addresses.

Location

Socket location.

Creator

Task name of the socket. The process number is in the square brackets.

State

Socket state:

·     NOFDREF—The user has closed the connection.

·     ISCONNECTED—The connection has been established.

·     ISCONNECTING—The connection is being established.

·     ISDISCONNECTING—The connection is being interrupted.

·     ASYNC—Asynchronous mode.

·     ISDISCONNECTED—The connection has been terminated.

·     ISSMOOTHING—Cross-card data smoothing is in progress.

·     CANBIND—The socket supports the bind operation.

·     PROTOREF—Indicates strong protocol reference.

·     ISPCBSYNCING—Cross-card PCB synchronization is in progress.

·     N/A—None of above state.

Options

Socket options:

·     SO_DEBUG—Records socket debugging information.

·     SO_ACCEPTCONN—Enables the server to listen connection requests.

·     SO_REUSEADDR—Allows the local address reuse.

·     SO_KEEPALIVE—Requires the protocol to test whether the connection is still alive.

·     SO_DONTROUTE—Bypasses the routing table query for outgoing packets because the destination is in a directly connected network.

·     SO_BROADCAST—Supports broadcast packets.

·     SO_LINGER—Closes the socket. The system can still send remaining data in the socket send buffer.

·     SO_OOBINLINE—Stores the out-of-band data in the input queue.

·     SO_REUSEPORT—Allows the local port reuse.

·     SO_TIMESTAMP—Records the timestamps of the incoming packets, accurate to milliseconds. This option is applicable to protocols that are not connection orientated.

·     SO_NOSIGPIPE—Disables the socket from sending data. As a result, a sigpipe cannot be established when a return failure occurs.

·     SO_TIMESTAMPNS—Has a similar function with the timestamp, accurate to nanoseconds.

·     SO_KEEPALIVETIME—Sets a keepalive time. This option is supported in TCP.

·     SO_FILTER—Supports setting the packet filter criterion. This option is available for OSI Socket and RawIP.

·     SO_USCBINDEX—Obtains the user profile index from the received packets.

·     SO_SEQPACKET—Preserves the boundaries of packets sent to the socket buffer.

·     SO_FILLTWAMPTIME—Sets the timestamp for TWAMP.

·     SO_LOCAL—Local socket option.

·     SO_NBMAADDR—Obtains the remote NBMA address of the ADVPN tunnel.

·     SO_DONTDELIVER—Do not deliver the data to the application.

·     SO_UCM—Sets the IPoE enabling status. ‌

·     SO_RAWSLOT—Raw slot.

·     SO_LEASEDUSERID—Obtains a usable lease.

·     N/A—No options are set.

Error

Error code.

Receiving buffer(cc/hiwat/lowat/drop/state)

Displays receive buffer information in the following order:

·     cc—Used space.

·     hiwat—Maximum space.

·     lowat—Minimum space.

·     drop—Number of dropped packets.

·     state—Buffer state:

¡     CANTSENDMORE—Unable to send data to the peer.

¡     CANTRCVMORE—Unable to receive data from the peer.

¡     RCVATMARK—Receiving tag.

¡     N/A—None of the above states.

Sending buffer(cc/hiwat/lowat/state)

Displays send buffer information in the following order:

·     cc—Used space.

·     hiwat—Maximum space.

·     lowat—Minimum space.

·     state—Buffer state:

¡     CANTSENDMORE—Unable to send data to the peer.

¡     CANTRCVMORE—Unable to receive data from the peer.

¡     RCVATMARK—Receiving tag.

¡     N/A—None of the above states.

Type

Socket type:

·     1—SOCK_STREAM. This socket uses TCP to provide reliable transmission of byte streams.

·     2—SOCK_DGRAM. This socket uses UDP to provide datagram transmission.

·     3—SOCK_RAW. This socket allows an application to change the next upper-layer protocol header.

·     N/A—None of the above types.

Protocol

Number of protocol using the socket. 58 represents ICMP.

Inpcb flags

Flags in the Internet PCB:

·     INP_RECVOPTS—Receives IPv6 options.

·     INP_RECVRETOPTS—Receives replied IPv6 options.

·     INP_RECVDSTADDR—Receives destination IPv6 address.

·     INP_HDRINCL—Provides the entire IPv6 header.

·     INP_REUSEADDR—Reuses the IPv6 address.

·     INP_REUSEPORT—Reuses the port number.

·     INP_ANONPORT—Port number not specified.

·     INP_PROTOCOL_PACKET—Identifies a protocol packet.

·     INP_RCVVLANID—Receives the VLAN ID of the packet. Only UDP and RawIP support this flag.

·     IN6P_IPV6_V6ONLY—Only supports IPv6 protocol stack.

·     IN6P_PKTINFO—Receives the source IPv6 address and input interface of the packet.

·     IN6P_HOPLIMIT—Receives the hop limit.

·     IN6P_HOPOPTS—Receives the hop-by-hop options extension header.

·     IN6P_DSTOPTS—Receives the destination options extension header.

·     IN6P_RTHDR—Receives the routing extension header.

·     IN6P_RTHDRDSTOPTS—Receives the destination options extension header preceding the routing extension header.

·     IN6P_TCLASS—Receives the traffic class of the packet.

·     IN6P_AUTOFLOWLABEL—Attaches a flow label automatically.

·     IN6P_RFC2292—Uses the API specified in RFC 2292.

·     IN6P_MTU—Discovers differences in the MTU size of every link along a given data path. TCP does not support this flag.

·     INP_RCVMACADDR—Receives the MAC address of the frame.

·     INP_USEICMPSRC—Uses the specified IPv6 address as the source IPv6 address for outgoing ICMP packets.

·     INP_SYNCPCB—Waits until Internet PCB is synchronized.

·     INP_LOCAL—Preferentially matches the INPCB with this flag on the same card.

·     N/A—None of the above flags.

Inpcb extflag

Extension flags in the Internet PCB:

·     INP_EXTRCVPVCIDX—Records the PVC index of the received packet.

·     INP_RCVPWID—Records the PW ID of the received packet.

·     INP_EXTRCVICMPERR—Receives an ICMP error packet.

·     INP_EXTFILTER—Filters the contents in the received packet.

·     INP_EXTDONTDROP—Do not drop the received packet.

·     INP_EXLISTEN—Adds the INPCB carrying this flag to the listen hash table.

·     INP_SELECTMATCHSRCBYFIB—Uses the FIB table to select a matching source.

·     INP_EXTPRIVATESOCKET—Associates the INPCB with the NSR private socket.

·     INP_EXTNOCACHEPKT—Do not cache packets.

·     INP_EXTRCVVLANDOT1P—Obtains the Dot1p value of the VLAN tag in the received packet.

·     INP_EXTSNDDATAIF—Sets the output interface of data.

·     INP_EXTFREEBIND—The socket is not bound to an address or port.

·     INP_EXTRCVUPID—Obtains the UP ID from the received packet in the UCM control-/user-plane separated (CUPS) network.

·     INP_EXTINNERPROXY—Receives packets forwarded by the proxy.

·     INP_EXLISTENNET—Sets this flag when the connection information is added to the network segment linked list.

·     N/A—None of the above flags.

Inpcb vflag

IP version flag in the Internet PCB:

·     INP_IPV4—IPv4 protocol.

·     INP_IPV6—IPv6 protocol.

·     INP_IPV6PROTO—Creates an Internet PCB based on IPv6 protocol.

·     INP_TIMEWAIT—In TIMEWAIT state.

·     INP_ONESBCAST—Sends broadcast packets.

·     INP_DROPPED—Protocol dropped flag.

·     INP_SOCKREF—Strong socket reference.

·     INP_DONTBLOCK—Do not block synchronization of the Internet PCB.

·     N/A—None of the above flags.

Hop limit

Hop limit in the Internet PCB.

Send VRF

This field is not supported in the current software version.

VRF from which packets are sent.

Receive VRF

This field is not supported in the current software version.

VRF from which packets are received.

Field

Description

IPv6 statistics:

IPv6 packet statistics.

Sent packets:

Total:

Sent locally:

Forwarded:

Raw packets:

Discarded:

Fragments:

Fragments failed:

Routing failed:

Statistics for sent IPv6 packets:

·     Total—Total number of packets that have been locally sent and forwarded.

·     Sent locally—Number of locally sent packets.

·     Forwarded—Number of forwarded packets.

·     Raw packets—Number of packets sent by using a raw socket.

·     Discarded—Number of discarded packets.

·     Fragments—Number of sent fragments.

·     Fragments failed—Number of fragments that were failed to send.

·     Routing failed—Number of packets with routing failures.

Received packets:

Total:

Received locally:

Hop limit exceeded:

Fragments:

Reassembled:

Reassembly failures:

Reassembly timeout:

Format errors:

Option errors:

Protocol errors:

Statistics for received IPv6 packets:

·     Total—Total number of received packets.

·     Received locally—Number of received packets that are destined for the device.

·     Hop limit exceeded—Number of packets with hop limit exceeded.

·     Fragments—Number of received fragments.

·     Reassembled—Number of reassembled packets.

·     Reassembly failures—Number of packets with reassembly failures.

·     Reassembly timeout—Number of packets with reassembly timed out.

·     Format errors—Number of packets with format errors.

·     Option errors—Number of packets with option errors.

·     Protocol errors—Number of packets with protocol errors.

ICMPv6 statistics:

ICMPv6 message statistics.

Sent packets:

Total:

Unreached:

Too big:

Hop limit exceeded:

Reassembly timeouts:

Parameter problems:

Echo requests:

Echo replies:

Neighbor solicits:

Neighbor adverts:

Router solicits:

Router adverts:

Redirects:

Router renumbering

Sent failed:

Rate limitation:

Other errors:

Statistics for sent ICMPv6 messages:

·     Total—Total number of sent messages.

·     Unreached—Number of Destination Unreachable messages.

·     Too big—Number of Packet Too Big messages.

·     Hop limit exceeded—Number of Hop Limit Exceeded messages.

·     Reassembly timeouts—Number of Fragment Reassembly Time Exceeded messages.

·     Parameter problems—Number of Parameter Problem messages.

·     Echo requests—Number of Echo Requests.

·     Echo replies—Number of Echo Replies.

·     Neighbor solicits—Number of Neighbor Solicitation messages.

·     Neighbor adverts—Number of Neighbor Advertisement messages.

·     Router solicits—Number of Router Solicitation messages.

·     Router adverts—Number of Router Advertisement messages.

·     Redirects—Number of Redirect messages.

·     Router renumbering—Number of Router Renumbering messages.

·     Sent failed—Number of messages that were failed to send locally.

·     Rate limitation—Number of unsent messages because of rate limiting.

·     Other errors—Number of messages with other errors.

Received packets:

Total:

Checksum errors:

Too short:

Bad codes:

Unreachable:

Too big:

Hop limit exceeded:

Reassembly timeouts:

Parameter problems:

Unknown error types:

Echo requests:

Echo replies:

Neighbor solicits:

Neighbor adverts:

Router solicits:

Router adverts:

Redirects:

Router renumbering:

Unknown info types:

Deliver failed:

Bad length:

Statistics for received ICMPv6 messages:

·     Total—Total number of received messages.

·     Checksum errors—Number of messages with checksum errors.

·     Too short—Number of messages with a too short length.

·     Bad codes—Number of messages with error codes.

·     Unreached—Number of Destination Unreachable messages.

·     Too big—Number of Packet Too Big messages.

·     Hop limit exceeded—Number of Hop Limit Exceeded messages.

·     Reassembly timeouts—Number of Fragment Reassembly Time Exceeded messages.

·     Parameter problems—Number of  Parameter Problem messages.

·     Unknown error types—Number of messages with unknown error types.

·     Echo requests—Number of Echo Requests.

·     Echo replies—Number of Echo Replies.

·     Neighbor solicits—Number of Neighbor Solicitation messages.

·     Neighbor adverts—Number of Neighbor Advertisement messages.

·     Router solicits—Number of Router Solicitation messages.

·     Router adverts—Number of Router Advertisement messages.

·     Redirects—Number of Redirect messages.

·     Router renumbering—Number of Router Renumbering messages.

·     Unknown info types—Number of messages with unknown information types.

·     Deliver failed—Number of messages with local delivery failures.

·     Bad length—Number of messages with error length.

*

Indicates that the TCP connection uses authentication.

LAddr->port

Local IPv6 address and port number.

FAddr->port

Peer IPv6 address and port number.

State

IPv6 TCP connection state:

·     CLOSED—The server receives a disconnection request's reply from the client.

·     LISTEN—The server is waiting for connection requests.

·     SYN_SENT—The client is waiting for the server to reply to the connection request.

·     SYN_RCVD—The server receives a connection request.

·     ESTABLISHED—The server and client have established connections and can transmit data bidirectionally.

·     CLOSE_WAIT—The server receives a disconnection request from the client.

·     FIN_WAIT_1—The client is waiting for the server to reply to a disconnection request.

·     CLOSING—The server and client are waiting for peer's disconnection reply when receiving disconnection requests from each other.

·     LAST_ACK—The server is waiting for the client to reply to a disconnection request.

·     FIN_WAIT_2—The client receives a disconnection reply from the server.

·     TIME_WAIT—The client receives a disconnection request from the server.

PCB

PCB index.

LInt

Local interface. If no input interface is specified for any TCP-based feature (for example, BGP peer) on the local end, this field displays N/A.

TCP inpcb number

Number of IPv6 TCP Internet PCBs.

Connection info

Connection information, including source IPv6 address, source port number, destination IPv6 address, and destination port number.

Location

Socket location.

NSR standby

tcpcb number

Number of IPv6 TCP PCBs (excluding PCBs of TCP in TIME_WAIT state).

Creator

Task name of the socket. The process number is in the square brackets.

State

Socket state:

·     NOFDREF—The user has closed the connection.

·     ISCONNECTED—The connection has been established.

·     ISCONNECTING—The connection is being established.

·     ISDISCONNECTING—The connection is being interrupted.

·     ASYNC—Asynchronous mode.

·     ISDISCONNECTED—The connection has been terminated.

·     ISSMOOTHING—Cross-card data smoothing is in progress.

·     CANBIND—The socket supports the bind operation.

·     PROTOREF—Indicates strong protocol reference.

·     ISPCBSYNCING—Cross-card PCB synchronization is in progress.

·     N/A—None of above state.

Options

Socket options:

·     SO_DEBUG—Records socket debugging information.

·     SO_ACCEPTCONN—Enables the server to listen connection requests.

·     SO_REUSEADDR—Allows the local address reuse.

·     SO_KEEPALIVE—Requires the protocol to test whether the connection is still alive.

·     SO_DONTROUTE—Bypasses the routing table query for outgoing packets because the destination is in a directly connected network.

·     SO_BROADCAST—Supports broadcast packets.

·     SO_LINGER—Closes the socket. The system can still send remaining data in the socket send buffer.

·     SO_OOBINLINE—Stores the out-of-band data in the input queue.

·     SO_REUSEPORT—Allows the local port reuse.

·     SO_NOSIGPIPE—Disables the socket from sending data. As a result, a sigpipe cannot be established when a return failure occurs.

·     SO_TIMESTAMPNS—Has a similar function with the timestamp, accurate to nanoseconds.

·     SO_KEEPALIVETIME—Sets a keepalive time. This option is supported in TCP.

·     SO_FILTER—Supports setting the packet filter criterion. This option is available for OSI Socket and RawIP.

·     SO_SEQPACKET—Preserves the boundaries of packets sent to the socket buffer.

·     SO_USCBINDEX—Obtains the user profile index from the received packets.

·     SO_FILLTWAMPTIME—Sets the timestamp for TWAMP.

·     SO_LOCAL—Local socket option.

·     SO_NBMAADDR—Obtains the remote NBMA address of the ADVPN tunnel.

·     SO_DONTDELIVER—Do not deliver the data to the application.

·     SO_UCM—Sets the IPoE enabling status. ‌

·     SO_RAWSLOT—Raw slot.

·     SO_LEASEDUSERID—Obtains a usable lease.

·     N/A—No options are set.

Error

Error code.

Receiving buffer(cc/hiwat/lowat/drop/state)

Displays receive buffer information in the following order:

·     cc—Used space.

·     hiwat—Maximum space.

·     lowat—Minimum space.

·     drop—Number of dropped packets.

·     state—Buffer state:

¡     CANTSENDMORE—Unable to send data to the peer.

¡     CANTRCVMORE—Unable to receive data from the peer.

¡     RCVATMARK—Receiving tag.

¡     N/A—None of the above states.

Sending buffer(cc/hiwat/lowat/drop/state)

Displays send buffer information in the following order:

·     cc—Used space.

·     hiwat—Maximum space.

·     lowat—Minimum space.

·     drop—Number of dropped packets.

·     state—Buffer state:

¡     CANTSENDMORE—Unable to send data to the peer.

¡     CANTRCVMORE—Unable to receive data from the peer.

¡     RCVATMARK—Receiving tag.

¡     N/A—None of the above states.

Type

Socket type:

·     1—SOCK_STREAM. This socket uses TCP to provide reliable transmission of byte streams.

·     2—SOCK_DGRAM. This socket uses UDP to provide datagram transmission.

·     3—SOCK_RAW. This socket allows an application to change the next upper-layer protocol header.

·     N/A—None of the above types.

Protocol

Number of the protocol using the socket. 6 represents TCP.

Inpcb flags

Flags in the Internet PCB:

·     INP_RECVOPTS—Receives IPv6 options.

·     INP_RECVRETOPTS—Receives replied IPv6 options.

·     INP_RECVDSTADDR—Receives destination IPv6 address.

·     INP_HDRINCL—Provides the entire IPv6 header.

·     INP_REUSEADDR—Reuses the IPv6 address.

·     INP_REUSEPORT—Reuses the port number.

·     INP_ANONPORT—Port number not specified.

·     INP_PROTOCOL_PACKET—Identifies a protocol packet.

·     INP_RCVVLANID—Receives the VLAN ID of the packet. Only UDP and RawIP support this flag.

·     IN6P_IPV6_V6ONLY—Only supports IPv6 protocol stack.

·     IN6P_PKTINFO—Receives the source IPv6 address and input interface of the packet.

·     IN6P_HOPLIMIT—Receives the hop limit.

·     IN6P_HOPOPTS—Receives the hop-by-hop options extension header.

·     IN6P_DSTOPTS—Receives the destination options extension header.

·     IN6P_RTHDR—Receives the routing extension header.

·     IN6P_RTHDRDSTOPTS—Receives the destination options extension header preceding the routing extension header.

·     IN6P_TCLASS—Receives the traffic class of the packet.

·     IN6P_AUTOFLOWLABEL—Attaches a flow label automatically.

·     IN6P_RFC2292—Uses the API specified in RFC 2292.

·     IN6P_MTU—Discovers differences in the MTU size of every link along a given data path. TCP does not support this flag.

·     INP_RCVMACADDR—Receives the MAC address of the frame.

·     INP_SYNCPCB—Waits until Internet PCB is synchronized.

·     INP_LOCAL—Preferentially matches the INPCB with this flag on the same card.

·     N/A—None of the above flags.

Inpcb extflag

Extension flags in the Internet PCB:

·     INP_EXTRCVPVCIDX—Records the PVC index of the received packet.

·     INP_RCVPWID—Records the PW ID of the received packet.

·     INP_EXTDONTDROP—Does not drop the received packet.

·     INP_EXLISTEN—Listening socket.

·     INP_EXTFILTER—Filters the contents in the received packets.

·     INP_SELECTMATCHSRCBYFIB—Uses the FIB table to select a matching source.

·     INP_EXTRCVICMPERR—Receives an ICMP error packet.

·     INP_EXTPRIVATESOCKET—Associates the INPCB with the NSR private socket.

·     INP_EXTNOCACHEPKT—Do not cache packets.

·     INP_EXTRCVVLANDOT1P—Obtains the Dot1p value of the VLAN tag in the received packet.

·     INP_EXTSNDDATAIF—Sets the output interface of data.

·     INP_EXTFREEBIND—The socket is not bound to an address or port.

·     INP_EXTRCVUPID—Obtains the UP ID from the received packet in the UCM control-/user-plane separated (CUPS) network.

·     INP_EXTINNERPROXY—Receives packets forwarded by the proxy.

·     INP_EXLISTENNET—Sets this flag when the connection information is added to the network segment linked list.

·     N/A—None of the above flags.

Inpcb vflag

IP version flags in the Internet PCB:

·     INP_IPV4—IPv4 protocol.

·     INP_IPV6—IPv6 protocol.

·     INP_IPV6PROTO—Creates an Internet PCB based on IPv6 protocol.

·     INP_TIMEWAIT—In TIMEWAIT state.

·     INP_ONESBCAST—Sends broadcast packets.

·     INP_DROPPED—Protocol dropped flag.

·     INP_SOCKREF—Strong socket reference.

·     INP_DONTBLOCK—Do not block synchronization of the Internet PCB.

·     N/A—None of the above flags.

Hop limit

Hop limit in the Internet PCB.

Connection state

TCP connection state:

·     CLOSED—The server receives a disconnection request's reply from the client.

·     LISTEN—The server is waiting for connection requests.

·     SYN_SENT—The client is waiting for the server to reply to the connection request.

·     SYN_RCVD—The server receives a connection request.

·     ESTABLISHED—The server and client have established connections and can transmit data bidirectionally.

·     CLOSE_WAIT—The server receives a disconnection request from the client.

·     FIN_WAIT_1—The client is waiting for the server to reply to a disconnection request.

·     CLOSING—The server and client are waiting for peer's disconnection reply when receiving disconnection requests from each other.

·     LAST_ACK—The server is waiting for the client to reply to a disconnection request.

·     FIN_WAIT_2—The client receives a disconnection reply from the server.

·     TIME_WAIT—The client receives a disconnection request from the server.

TCP options

TCP options:

·     TF_DELACK—Delays sending ACK packets.

·     TF_SENTFIN—A FIN packet has been sent.

·     TF_RCVD_SCALE—Requests the receive window size scale factor.

·     TF_RCVD_TSTMP—A timestamp was received in the SYN packet.

·     TF_NEEDSYN—Sends a SYN packet.

·     TF_NEEDFIN—Sends a FIN packet.

·     TF_MORETOCOME—More data is to be added to the socket.

·     TF_LQ_OVERFLOW—The listening queue overflows.

·     TF_LASTIDLE—Idle connection.

·     TF_RXWIN0SENT—A reply with receive window size 0 was sent.

·     TF_FASTRECOVERY—Enters NewReno fast recovery mode.

·     TF_WASFRECOVERY—In NewReno fast recovery mode.

·     TF_SIGNATURE—MD5 signature.

·     TF_FORCEDATA—Forces to send one byte.

·     TF_TSO—TSO is enabled.

·     TF_PMTU—Supports RFC 1191.

·     TF_PMTUD—Starts Path MTU discovery.

·     TF_PASSIVE_CONN—Passive connection.

·     TF_APP_SEND—The application sends data.

·     TF_ABNORMAL_CLOSE—The application was abnormally closed.

·     TF_NODELAY—Disables the Nagle algorithm that buffers the sent data inside the TCP.

·     TF_NOOPT—No TCP options.

·     TF_NOPUSH—Forces TCP to delay sending any TCP data until a full sized segment is buffered in the TCP buffers.

·     TF_NSR—Enables TCP NSR.

·     TF_REQ_SCALE—Enables the TCP window scale option.

·     TF_REQ_TSTMP—Enables the time stamp option.

·     TF_SACK_PERMIT—Enables the TCP selective acknowledgement option.

·     TF_ENHANCED_AUTH—Enables the enhanced authentication option.

NSR state

NSR state of the TCP connection:

·     CLOSED—Closed (initial) state.

·     CLOSING—The connection is to be closed.

·     ENABLED—The connection backup is enabled.

·     OPEN—The connection synchronization has started.

·     PENDING—The connection backup is not ready.

·     READY—The connection backup is ready.

·     SMOOTH—The connection data is being smoothed.

Between the parentheses is the role of the connection:

·     M—Main connection.

·     S—Standby connection.

Send VRF

This field is not supported in the current software version.

VRF from which packets are sent.

Receive VRF

This field is not supported in the current software version.

VRF from which packets are received.

Local interface

Interface on the local end. If no input interface is specified for any TCP-based feature (for example, BGP peer) on the local end, this field displays N/A.

Error count in abnormal-packet-defend period

Number of error packets received in one abnormal-packet-defend period if attack prevention is enabled for TCP connections.

Checksum errors

Number of received packets with checksum errors.

Duplicate packets

Number of received duplicate packets.

Part-Duplicate packets

Number of received partially duplicate packets.

Out-of-order packets

Number of received out-of-order packets.

Duplicate ACK packets

Number of received duplicate ACK packets.

Out-of-order ACK packets

Number of received out-of-order ACK packets.

Packets with data out of window

Number of received packets whose serial number is out of the sliding window range.

MD5 authentication errors

Number of packets with failed MD5 authentication.

Keychain authentication errors

Number of packets with failed Keychain authentication.

Timestamp errors

Number of packets with timestamp errors.

Maximum Segment Size (MSS)

Maximum segment size.

Window Scale (wscale)

Window scale.

Retransmission Timeout (rto)

Retransmission timeout in milliseconds.

Retransmission Count/Total

Current number retransmissions/total number of retransmissions.

Round-trip Time (rtt/rtvar)

Average round-trip time in milliseconds.

Delayed Ack Timeout (ato)

Delayed acknowledgement timeout in milliseconds.

Congestion Window (cwnd)

Sequance number of the packet at the congestion window.

TCP Throughput

TCP throughput in Mbps.

sendpps/sendbps/recvpps/recvbps

·     sendpps—Number of packets sent per second.

·     sendbps—Bytes sent per second.

·     recvpps—Number of packets received per second.

·     recvbps—Bytes received per second.

Iss/unack/next/max/wnd

·     Iss—Local initial sequence number.

·     unack—Sequence number of sent packet that has not been acknowledged.

·     next—Sequence number for next sending.

·     max—Maximum sequence number for sending.

·     wnd—Sequence number of the packet at the sending window.

Irs/undeliver/next/adv/wnd

·     Irs—Peer initial sequence number.

·     undeliver—Sequence number of the packet that has not been reported.

·     next—Sequence number for next sending.

·     adv—Size of the receiving buffer.

·     wnd—Sequence number of the packet at the notification receiving window.

Total Recv/Send Count

Total number of received/sent packets through the LIPC connection between TCP NSR main and standby connections.

EnableMsg Recv/Send Count

Number of received/sent EnableMsg messages through the LIPC connection between TCP NSR main and standby connections.

DisableMsg Recv/Send Count

Number of received/sent DisableMsg messages through the LIPC connection between TCP NSR main and standby connections.

SlotchangeMsg Recv/Send Count

Number of received/sent SlotchangeMsg messages through the LIPC connection between TCP NSR main and standby connections.

ReadyMsg Recv/Send Count

Number of received/sent ReadyMsg messages through the LIPC connection between TCP NSR main and standby connections.

PullMsg Recv/Send Count

Number of received/sent PullMsg messages through the LIPC connection between TCP NSR main and standby connections.

BriefdataMsg Recv/Send Count

Number of received/sent BriefdataMsg messages through the LIPC connection between TCP NSR main and standby connections.

PktMsg Recv/Send Count

Number of received/sent PktMsg messages through the LIPC connection between TCP NSR main and standby connections.

CmdMsg Recv/Send Count

Number of received/sent CmdMsg messages through the LIPC connection between TCP NSR main and standby connections.

history Recv/history Send

Number of received/sent history messages through the LIPC connection between TCP NSR main and standby connections.

Recent Recv/Send Seq

Sequence number of the message received/sent most recently between TCP NSR main and standby connections.

Recent Recv/Send Time

Absolute time of the most recent message receiving/sending between TCP NSR main and standby connections.

rcvsb_timeo/sndsb_timeo/pd_type/pd_len

·     rcvsb_timeo—Socket receiving buffer timeout.

·     sndsb_timeo—Socket sending buffer timeout in jiffies.

·     pd_type—Socket private data type.

·     pd_len—Socket private data length in bytes.

so_linger

Socket linger value.

ka_idle/ka_interval/ka_cout

·     ka_idle—Socket keepalive idle timeout.

·     ka_interval—Socket keepalive interval.

·     ka_cout—Socket keepalive count.

so_accept_filter_str

Name of the socket packet receiving filter.

Md5 Password

TCP MD5 password.

Tcp Key Chain

TCP keychain name.

Out Interface/NextHop/Local Address

·     Out Interface—Outgoing interface.

·     NextHop.

·     Local Address.

Filter Offset/Length/Value/Mask

Pcb filter offset, length, value, and mask.

Ip Tos/McastTTL/McastLoop/Mcast Interface Index:

·     Ip Tos—IP TOS value.

·     McastTTL—Multicast TTL.

·     McastLoop—Multicast loop.

·     Mcast Interface Index—Multicast interface index.

Acl Index/MacIndex

·     Acl Index—ACL filtering parameters.

·     MacIndex—Layer 2 ACL parameters.

Mpls Flag/Label

MPLS flag and MPLS label.

Send Mac

Peer MAC address specified for packet sending of upper-layer applications.

Bier TTL/Entropy/TunnelID

·     Bier TTL.

·     Entropy—BIER grouping flag.

·     TunnelID—BIER tunnel ID.

Ip Option Hdr

IP options required in a TCP packet.

LAddr->port

Local IPv6 address and port number.

FAddr->port

Peer IPv6 address and port number.

PCB

PCB index.

Total UDP socket number

Total number of IPv6 UDP sockets.

Connection info

Connection information, including source IPv6 address, source port number, destination IPv6 address, and destination port number.

Location

Socket location.

Creator

Task name of the socket. The progress number is in the square brackets.

State

Socket state:

·     NOFDREF—The user has closed the connection.

·     ISCONNECTED—The connection has been established.

·     ISCONNECTING—The connection is being established.

·     ISDISCONNECTING—The connection is being interrupted.

·     ASYNC—Asynchronous mode.

·     ISDISCONNECTED—The connection has been terminated.

·     ISSMOOTHING—Cross-card data smoothing is in progress.

·     CANBIND—The socket supports the bind operation.

·     PROTOREF—Indicates strong protocol reference.

·     ISPCBSYNCING—Cross-card PCB synchronization is in progress.

·     N/A—None of above state.

Options

Socket options:

·     SO_DEBUG—Records socket debugging information.

·     SO_ACCEPTCONN—Enables the server to listen connection requests.

·     SO_REUSEADDR—Allows the local address reuse.

·     SO_KEEPALIVE—Requires the protocol to test whether the connection is still alive.

·     SO_DONTROUTE—Bypasses the routing table query for outgoing packets because the destination is in a directly connected network.

·     SO_BROADCAST—Supports broadcast packets.

·     SO_LINGER—Closes the socket. The system can still send remaining data in the socket send buffer.

·     SO_OOBINLINE—Stores the out-o-band data in the input queue.

·     SO_REUSEPORT—Allows the local port reuse.

·     SO_TIMESTAMP—Records the timestamps of the input packets, accurate to milliseconds. This option is applicable to protocols that are not connection orientated.

·     SO_NOSIGPIPE—Disables the socket from sending data. As a result, a sigpipe cannot be established when a return failure occurs.

·     SO_TIMESTAMPNS—Has a similar function with the timestamp, accurate to nanoseconds.

·     SO_KEEPALIVETIME—Sets a keepalive time. This option is supported in TCP.

·     SO_FILTER—Supports setting the packet filter criterion. This option is available for OSI Socket and RawIP.

·     SO_USCBINDEX—Obtains the user profile index from the received packets.

·     SO_SEQPACKET—Preserves the boundaries of packets sent to the socket buffer.

·     SO_FILLTWAMPTIME—Sets the timestamp for TWAMP.

·     SO_LOCAL—Local socket option.

·     SO_NBMAADDR—Obtains the remote NBMA address of the ADVPN tunnel.

·     SO_DONTDELIVER—Do not deliver the data to the application.

·     SO_UCM—Sets the IPoE enabling status. ‌

·     SO_RAWSLOT—Raw slot.

·     SO_LEASEDUSERID—Obtains a usable lease.

·     N/A—No options are set.

Error

Error code.

Receiving buffer(cc/hiwat/lowat/drop/state)

Displays receive buffer information in the following order:

·     cc—Used space.

·     hiwat—Maximum space.

·     lowat—Minimum space.

·     drop—Number of dropped packets.

·     state—Buffer state:

¡     CANTSENDMORE—Unable to send data to the peer.

¡     CANTRCVMORE—Unable to receive data from the peer.

¡     RCVATMARK—Receiving tag.

¡     N/A—None of the above states.

Sending buffer(cc/hiwat/lowat/state)

Displays send buffer information in the following order:

·     cc—Used space.

·     hiwat—Maximum space.

·     lowat—Minimum space.

·     state—Buffer state:

¡     CANTSENDMORE—Unable to send data to the peer.

¡     CANTRCVMORE—Unable to receive data from the peer.

¡     RCVATMARK—Receiving tag.

¡     N/A—None of the above states.

Type

Socket type:

·     1—SOCK_STREAM. This socket uses TCP to provide reliable transmission of byte streams.

·     2—SOCK_DGRAM. This socket uses UDP to provide datagram transmission.

·     3—SOCK_RAW. This socket allows an application to change the next upper-layer protocol header.

·     N/A—None of the above types.

Protocol

Number of the protocol using the socket. 17 represents UDP.

Inpcb flags

Flags in the Internet PCB:

·     INP_RECVOPTS—Receives IPv6 options.

·     INP_RECVRETOPTS—Receives replied IPv6 options.

·     INP_RECVDSTADDR—Receives destination IPv6 address.

·     INP_HDRINCL—Provides the entire IPv6 header.

·     INP_REUSEADDR—Reuses the IPv6 address.

·     INP_REUSEPORT—Reuses the port number.

·     INP_ANONPORT—Port number not specified.

·     INP_PROTOCOL_PACKET—Identifies a protocol packet.

·     INP_RCVVLANID—Receives the VLAN ID of the packet. Only UDP and RawIP support this flag.

·     IN6P_IPV6_V6ONLY—Only supports IPv6 protocol stack.

·     IN6P_PKTINFO—Receives the source IPv6 address and input interface of the packet.

·     IN6P_HOPLIMIT—Receives the hop limit.

·     IN6P_HOPOPTS—Receives the hop-by-hop options extension header.

·     IN6P_DSTOPTS—Receives the destination options extension header.

·     IN6P_RTHDR—Receives the routing extension header.

·     IN6P_RTHDRDSTOPTS—Receives the destination options extension header preceding the routing extension header.

·     IN6P_TCLASS—Receives the traffic class of the packet.

·     IN6P_AUTOFLOWLABEL—Attaches a flow label automatically.

·     IN6P_RFC2292—Uses the API specified in RFC 2292.

·     IN6P_MTU—Discovers differences in the MTU size of every link along a given data path. TCP does not support this flag.

·     INP_RCVMACADDR—Receives the MAC address of the frame.

·     INP_SYNCPCB—Waits until Internet PCB is synchronized.

·     INP_LOCAL—Preferentially matches the INPCB with this flag on the same card.

·     N/A—None of the above flags.

Inpcb extflag

Extension flags in the Internet PCB:

·     INP_EXTRCVPVCIDX—Records the PVC index of the received packet.

·     INP_RCVPWID—Records the PW ID of the received packet.

·     INP_EXTDONTDROP—Do not drop the received packet.

·     INP_EXLISTEN—Adds the INPCB carrying this flag to the listen hash table.

·     INP_EXTFILTER—Filters the contents in the received packets.

·     INP_SELECTMATCHSRCBYFIB—Uses the FIB table to select a matching source.

·     INP_EXTRCVICMPERR—Receives an ICMP error packet.

·     INP_EXTPRIVATESOCKET—Associates the INPCB with the NSR private socket.

·     INP_EXTNOCACHEPKT—Do not cache packets.

·     INP_EXTRCVVLANDOT1P—Obtains the Dot1p value of the VLAN tag in the received packet.

·     INP_EXTSNDDATAIF—Sets the output interface of data.

·     INP_EXTFREEBIND—The socket is not bound to an address or port.

·     INP_EXTRCVUPID—Obtains the UP ID from the received packet in the UCM control-/user-plane separated (CUPS) network.

·     INP_EXTINNERPROXY—Receives packets forwarded by the proxy.

·     INP_EXLISTENNET—Sets this flag when the connection information is added to the network segment linked list.

·     N/A—None of the above flags.

Inpcb vflag

IP version flags in the Internet PCB:

·     INP_IPV4—IPv4 protocol.

·     INP_IPV6—IPv6 protocol.

·     INP_IPV6PROTO—Creates an Internet PCB based on IPv6 protocol.

·     INP_TIMEWAIT—In TIMEWAIT state.

·     INP_ONESBCAST—Sends broadcast packets.

·     INP_DROPPED—Protocol dropped flag.

·     INP_SOCKREF—Strong socket reference.

·     INP_DONTBLOCK—Do not block synchronization of the Internet PCB.

·     N/A—None of the above flags.

Hop limit

Hop limit in the Internet PCB.

Send VRF

This field is not supported in the current software version.

VRF from which packets are sent.

Receive VRF

This field is not supported in the current software version.

VRF from which packets are received.