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traceroute srv6

date_range 19-Nov-23

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Syntax

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routing-options {
source-packet-routing {
srv6 {
+ oam {
+ traceoptions {
file;
flag {
all;
configuration;
database;
network;
pipe;
rpc-packet-details;
traceroute;
)
}
}
}
}
}

 

Description

An SRv6 segment is a 128-bit value Segment Identifier (SID) often used as a shorter reference for SRv6 Segment. Traceroute to a SID is used for hop-by-hop fault localization and to trace path to a SID.

Options

logical-system	(Optional) Specify the name of the logical system for the traceroute attempt.
retries `retries-number`	(Optional) Specify the number of times to resend probe values. Range: 1 through 9 Default: 3
routing-instance `routing-instance-name`	(Optional) Specify the name of the routing instance for the traceroute attempt.
source `source-address`	(Optional) Specify the source address of the outgoing traceroute packets.
ttl `value`	(Optional) Specify the maximum time-to-live value to include in the traceroute request, in seconds. Range: 1 through 125 Default: 64
wait `seconds`	(Optional) Specify the number of seconds to wait before resending a probe. Range: 5 through 15 Default: 10

Required Privilege Level

network

Output Fields

traceroute srv6 describes the output fields for the traceroute srv6 isis command and the traceroute srv6 spring-te commands. Output fields are listed in the approximate order in which they appear.

Table 1: Output Fields for traceroute srv6 isis
Field Name	Field Description
host	IPv6 loopback address or SRv6 SID of remote host.
logical-system	Name of logical system.
probe-icmp	Use the ICMP echo request for probes.
retries	Number of times to resend the probe.
routing-instance	Name of routing instance for traceroute attempt.
source	Source address used when you send probes.
tos	Value for IPv6 type-of-service.
ttl	Time to live value of the labeled packet.
wait	Number of seconds to wait before resending probe.

Table 2: Output Fields for traceroute srv6 te sids-stack
Field Name	Field Description
logical-system	Name of logical system.
nexthop-address	Nexthop IP address for the traceroute packet.
nexthop-interface	Outgoing interface for the traceroute packet.
no-resolve	Do not attempt to print the addresses symbolically.
probe-icmp	Use the ICMP echo request for probes.
retries	Number of times to resend the probe.
routing-instance	Name of routing instance for traceroute attempt.
sids	SRv6 SIDs in srv6-stack.
source	Source address used when you send probes.
tos	Value for IPv6 type-of-service.
ttl	Time to live value of the labeled packet.
wait	Number of seconds to wait before resending probe.

Output for ISIS SRv6

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user@router> traceroute srv6 isis 3000::1 
traceroute: to destination 3000::1, 64 hops max, retries 3 
  1   ::21.0.1.2   7.153 ms   4.191 ms   2.652 ms 
 	  2   ::21.1.2.2   2.652 ms   7.153 ms   4.191 ms 
  3   ::21.2.3.2   7.323 ms   2.652 ms   7.153 ms 
    
  
 

Output for IPv6/SRv6

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user@router> traceroute srv6 spring-te sids-stack sids [ 5000::1 3000::1 ] nexthop-interface ge-0/0/0.0 nexthop-address ::21.0.1.2 

    traceroute: to destination 5000::1, 64 hops max, retries 3 
 1   ::21.0.1.2   3.532 ms   4.191 ms   2.652 ms 
     DA: 3000::1 
     SRH:( 5000::1, 3000::1; SL=1) 
2   ::21.1.2.2   9.573 ms    3.532 ms   4.191 ms 
     DA: 3000::1 
     SRH:( 5000::1, 3000::1; SL=1) 
3   3333::3   5.253 ms   3.532 ms   4.191 ms 
     DA: 3000::1 
     SRH:( 5000::1, 3000::1; SL=1) 
4   ::21.3.5.2   6.800 ms   4.191 ms   2.652 ms 
     DA: 5000::1

Release Information

Command introduced in Junos OS Release 22.3R1.

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