TABLE 39 General IPv6 TCP connection elds (continued)
Field Description
• TIME-WAIT - Waiting for enough time to pass to be sure the
remote TCP received the acknowledgment of its connection
termination request.
• CLOSED - There is no connection state.
FREE TCP = percentage The percentage of free TCP control block (TCP) space.
FREE TCP QUEUE BUFFER = percentage The percentage of free TCP queue buer space.
FREE TCP SEND BUFFER = percentage The percentage of free TCP send buer space.
FREE TCP RECEIVE BUFFER = percentage The percentage of free TCP receive buer space.
FREE TCP OUT OF SEQUENCE BUFFER = percentage The percentage of free TCP out of sequence buer space.
To display detailed information about a specied TCP connection, enter a command such as the following at any CLI level.
device#show ipv6 tcp status 2000:4::110 179 2000:4::106 8222
TCP: TCP = 0x217fc300
TCP: 2000:4::110:179 <-> 2000:4::106:8222: state: ESTABLISHED Port: 1
Send: initial sequence number = 242365900
Send: first unacknowledged sequence number = 242434080
Send: current send pointer = 242434080
Send: next sequence number to send = 242434080
Send: remote received window = 16384
Send: total unacknowledged sequence number = 0
Send: total used buffers 0
Receive: initial incoming sequence number = 740437769
Receive: expected incoming sequence number = 740507227
Receive: received window = 16384
Receive: bytes in receive queue = 0
Receive: congestion window = 1459
Syntax: show ipv6 tcp status local-ip-address local-port-number remote-ip-address remote-port-number
The local-ip-address parameter can be the IPv4 or IPv6 address of the local interface over which the TCP connection is taking place.
The local-port-number parameter is the local port number over which a TCP connection is taking place.
The remote-ip-address parameter can be the IPv4 or IPv6 address of the remote interface over which the TCP connection is taking
place.
The remote-port-number parameter is the local port number over which a TCP connection is taking place.
This display shows the following information.
TABLE 40
Specic IPv6 TCP connection elds
Field Description
TCP = location The location of the TCP.
local-ip-address local-port-number remote-ip-address remote-port-
number state port
This eld provides a general summary of the following:
• The local IPv4 or IPv6 address and port number.
• The remote IPv4 or IPv6 address and port number.
• The state of the TCP connection. For information on possible
states, refer to Displaying IPv6 TCP information.
• The port numbers of the local interface.
Send: initial sequence number = number The initial sequence number sent by the local router.
Send: rst unacknowledged sequence number = number The rst unacknowledged sequence number sent by the local router.
Send: current send pointer = number The current send pointer.
Send: next sequence number to send = number The next sequence number sent by the local router.
Displaying global IPv6 information
FastIron Ethernet Switch Layer 3 Routing
53-1003627-04 187
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