Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - COMMAND REFERENCE N TO Z 2010-10-19 Command Reference Manual page 233

Chapter 4: P Commands
numTstamps—Specifies how many timestamps from routers are to be recorded as
the packet travels, in the range 1–9
interfaceType—Interface type of a destination address on the router that is connected
for external loopback by means of a cable or plug that loops Tx to Rx. The command
succeeds only if the specified interface is connected for external loopback and the
encapsulation type is ATM, Frame Relay, HDLC, or PPP. The command does not
work for Ethernet or VLAN encapsulations.See Interface Types and Specifiers on
page 5
interfaceSpecifier—Particular interface of a destination address on the router that is
connected for external loopback by means of a cable or plug that loops Tx to Rx.
The command succeeds only if the specified interface is connected for external
loopback and the encapsulation type is ATM, Frame Relay, HDLC, or PPP. The
command does not work for Ethernet or VLAN encapsulations.Format varies
according to interface type; see Interface Types and Specifiers on page 5
trafficClass—Specifies the traffic class value to match in the Traffic Class field of
each IPv6 packet header, in the range 1 to 255
flowLabel—Specifies the flow label value to match in the Flow Label field of each
IPv6 packet header, in the range 1 to 1048576
Mode Privileged Exec, User Exec
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