Dell Brocade DCX, Configuration Manual

Page: 1173 / 1436

BigIron RX Series Configuration Guide 1101
53-1001810-01
Displaying global IPv6 information
43
To display general information about each TCP connection on the router, enter the following
command at any CLI level.
Syntax: show ipv6 tcp connections
This display shows the following information.
TABLE 174
General IPv6 TCP connection fields
This field... Displays...
Local IP address:port The IPv4 or IPv6 address and port number of the local router interface
over which the TCP connection occurs.
Remote IP address:port The IPv4 or IPv6 address and port number of the remote router interface
over which the TCP connection occurs.
TCP state The state of the TCP connection. Possible states include the following:
•
LISTEN – Waiting for a connection request.
•
SYN-SENT – Waiting for a matching connection request after having
sent a connection request.
•
SYN-RECEIVED – Waiting for a confirming connection request
acknowledgment after having both received and sent a connection
request.
•
ESTABLISHED – Data can be sent and received over the
connection. This is the normal operational state of the connection.
•
FIN-WAIT-1 – Waiting for a connection termination request from the
remote TCP, or an acknowledgment of the connection termination
request previously sent.
•
FIN-WAIT-2 – Waiting for a connection termination request from the
remote TCP.
•
CLOSE-WAIT – Waiting for a connection termination request from
the local user.
•
CLOSING – Waiting for a connection termination request
acknowledgment from the remote TCP.
•
LAST-ACK – Waiting for an acknowledgment of the connection
termination request previously sent to the remote TCP (which
includes an acknowledgment of its connection termination
request).
•
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 TCB = < percentage > The percentage of free TCP control block (TCB) space.
BigIron RX# show ipv6 tcp connections
Local IP address:port <-> Remote IP address:port TCP state
192.168.182.110:23 <-> 192.168.8.186:4933 ESTABLISHED
192.168.182.110:8218 <-> 192.168.182.106:179 ESTABLISHED
192.168.182.110:8039 <-> 192.168.2.119:179 SYN-SENT
192.168.182.110:8159 <-> 192.168.2.102:179 SYN-SENT
2000:4::110:179 <-> 2000:4::106:8222 ESTABLISHED (1440)
Total 5 TCP connections
TCP MEMORY USAGE PERCENTAGE
FREE TCB = 98 percent
FREE TCP QUEUE BUFFER = 99 percent
FREE TCP SEND BUFFER = 97 percent
FREE TCP RECEIVE BUFFER = 100 percent
FREE TCP OUT OF SEQUENCE BUFFER = 100 percent