Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual page 140

JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide
116
Monitoring IP
Application set MSS MSS that an application might have set for the
connection
Xmit Interface MSS MSS for the interface used to transmit packets to
the peer; calculated as the interface MTU minus the size of the TCP and
IP headers.
MSS Sent to Peer MSS that has been advertised to the peer
"ICMP DestUn, Frag Req'd and DF Set" messages Number of ICMP
"Destination Unreachable: Fragmentation Required and DF set" messages
that the router has received
Number of attempts to increase PMTU Number of times the router has
attempted to increase the PMTU by probing with a packet that is larger
than the known MTU
Time to next increase attempt Amount of time, in seconds, until the
router retries to increase the MTU
Black Hole Detection State State of the black hole detection mechanism:
none, detecting, probable, or unknown
Out-of-Order Packet Queue Information Information regarding packet
queue buffers
Buffers Outstanding Number of buffers currently on the connection
reordering queue
High Water Most buffers that have ever been on the connection
reordering queue
Buffers discarded Number of buffers that were discarded because
keeping them would have exceeded the connection maximum
TCP PAWS is [enabled/disabled] Status of the TCP PAWS option; enabled
indicates that PAWS is functioning normally (default mode) for TCP segments;
disabled indicates that PAWS is disabled for TCP segments
Example 1
host1#show ip tcp statistics
TCP Global Statistics:
Connections: 7358 attempted, 4 accepted, 7362 established
0 dropped, 14718 closed
Rcvd: 75923 total pkts, 53608 in-sequence pkts, 3120303 bytes
0 chksum err pkts, 0 authentication err pkts, 0 bad offset pkts
0 short pkts, 0 duplicate pkts, 0 out of order pkts
Sent: 82352 total pkts, 44404 data pkts, 657095 bytes
34 retransmitted pkts, 487 retransmitted bytes
TCP Session Statistics:
Local addr: 0.0.0.0, Local port: 23
Remote addr: 0.0.0.0, Remote port: 0
State: LISTEN Authentication: None
Rcvd: 4 total pkts, 0 in-sequence pkts, 0 bytes
0 chksum err pkts, 0 bad offset pkts, 0 short pkts
0 duplicate pkts, 0 out of order pkts