Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - COMMAND REFERENCE N TO Z 2010-10-19 Command Reference Manual page 1369

Mode
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ttlValue—Hop count specified by setting the time-to-live field in the header, in the
range 1–255; default value is 32; however, by default, the TTL on the inner (stacked)
label is set to 1 while transmitting the echo request packet, which causes the packet
to be exceptioned to the SRP module when the stacked label is exposed
timeOutVal—Number of seconds in the range 1–32 to wait for an MPLS echo reply
packet before the connection attempt times out
reply mode—Specifies the reply mode for the echo request packet
ipv4-udp—Specifies that the echo request packet is an IPv4 UDP packet
ipv4-udp-with-router-alert—Specifies that the echo request packet is an IPv4 UDP
packet with the router alert bit set in the header so all routers examine this packet
more closely to determine whether further processing is necessary
reply pad-tlv—Requests sender of an echo reply to send a pad TLV
trafficClass—Number in the range 0–255 that represents the value of the traffic class
that the sender of an echo reply is requested to set
bitValue—Value of the EXP bits in the range 0–7 included in the MPLS echo request
packet
bottomLabelTtl—Time-to-live value of the bottom label in the stack
detail—Displays detailed information about MPLS echo request sent and echo replies
received
Privileged Exec, User Exec
Chapter 8: T Commands
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