Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - IP-IPV6-IGP CONFIGURATION GUIDE 2010-10-31 Configuration Manual page 130

JunosE 11.3.x IP, IPv6, and IGP Configuration Guide
show tcp paws
show tcp statistics
106
Use to display PMTU information.
Field descriptions
TCP PMTU Discovery—State of the PMTUD functions (ENABLED or DISABLED)
Administrative Minimum MTU—Administrative minimum PMTU that is supported or
none if there is no minimum
Administrative Maximum MTU—Administrative maximum PMTU that is supported
or none if there is no maximum
Timer 1—Value of timer 1 in minutes
Timer 2—Value of timer 2 in minutes
Black Hole Detect Threshold—Number of retransmissions allowed before
TCP/PMTUD assumes that there is a black hole and attempts to reduce impact in
the MSS
# ICMP TooBigs—Number of ICMP Too Big messages that have been received
# ICMP TooBigs for unk. connections—Number of ICMP Too Big messages that have
been received which were not for a valid connection
Example
host1#show tcp path-mtu-discovery
TCP PMTU Discovery is ENABLED
Administrative Minimum MTU: 512
Administrative Maximum MTU: 65535
Timer 1: 10 minutes
Timer 2: 2 minutes
Black Hole Detect Threshold: 0 retransmissions
# ICMP TooBigs: 0
# ICMP TooBigs for unk. connections: 0
See show tcp path-mtu-discovery
Use to display the TCP PAWS status.
Example
host1#show tcp paws
TCP PAWS is disabled
See show tcp paws
Use to display all TCP statistics.
Baselining is supported for this command.
Use the ip keyword to display only IPv4 statistics.
Use the ipv6 keyword to display only IPv6 statistics.
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