display tcp verbose

Use display tcp verbose to display detailed information about TCP connections.

Syntax

display tcp verbose [ slot slot-number [ pcb pcb-index ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

pcb pcb-index: Specifies a PCB by its index in the range of 1 to 16.

slot slot-number: Specifies an IRF member device by its member ID.

Usage guidelines

Detailed TCP connection information includes socket creator, state, option, type, protocol number, source IP address and port number, destination IP address and port number, and connection state.

Examples

# Display detailed information about TCP connections.

<Sysname> display tcp verbose
TCP inpcb number: 1(tcpcb number: 1)

 Slot: 6
 Creator: telnetd_mips[199]
 State: ISCONNECTED
 Options: N/A
 Error: 0
 Receiving buffer(cc/hiwat/lowat/state): 0 / 65700 / 1 / N/A
 Sending buffer(cc/hiwat/lowat/state): 0 / 65700 / 512 / N/A
 Type: 1
 Protocol: 6
 Connection info: src = 192.168.20.200:23 ,  dst = 192.168.20.14:4181
 Inpcb flags: N/A
 Inpcb vflag: INP_IPV4
 TTL: 255(minimum TTL: 0)
 Connection state: ESTABLISHED
 Send VRF: 0x0
 Receive VRF: 0x0

Table 36: Command output

Field	Description
TCP inpcb number	Number of TCP IP PCBs.
tcpcb number	Number of TCP PCBs.
Slot	ID of the IRF member device.
Creator	Name of the operation that created the socket. The number in brackets is the process number of the creator.
State	State of the socket.
Options	Socket options.
Error	Error code.
Receiving buffer (cc/hiwat/lowat/state)	Displays receive 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.
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.
Connection info	Source IP address and destination IP address.
Inpcb flags	Flags in the Internet PCB: INP_RECVOPTS—Receives IP options. INP_RECVRETOPTS—Receives replied IP options. INP_RECVDSTADDR—Receives destination IP address. INP_HDRINCL—Provides the entire IP header. INP_REUSEADDR—Reuses the IP address. INP_REUSEPORT—Reuses the port number. INP_ANONPORT—Port number not specified. INP_RECVIF—Records the input interface of the packet. INP_RECVTTL—Receives TTL of the packet. Only UDP and RawIP support this flag. INP_DONTFRAG—Sets the Don't Fragment flag. INP_ROUTER_ALERT—Receives packets with the router alert option. Only RawIP supports this flag. INP_PROTOCOL_PACKET—Identifies a protocol packet. INP_RCVVLANID—Receives the VLAN ID of the packet. Only UDP and RawIP support this flag. INP_RCVMACADDR—Receives the MAC address of the frame. INP_SNDBYLSPV—Sends through MPLS. INP_RECVTOS—Receives TOS of the packet. Only UDP and RawIP support this flag. INP_SYNCPCB—Waits until Internet PCB is synchronized. N/A—None of the above flags.
Inpcb vflag	IP version flags in the Internet PCB: INP_IPV4—IPv4 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.
TTL	TTL value in the Internet PCB.

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