LSP ping and trace for segment routing tunnels
- tools oam lsp-ping sr-isis prefix-sid <prefix>
- tools oam lsp-trace sr-isis prefix-sid <prefix>
Supported parameters include destination-ip, source-ip, timeout, and ecmp-next-hop-select. However, the only mandatory parameter is the prefix-sid.
Results from the lsp-ping and lsp-trace operations are displayed using info from state commands.
Performing an LSP ping to a segment routing prefix
To check connectivity to a segment routing prefix, use the tools oam lsp-ping sr-isis command. To display the results, use the info from state oam lsp-ping sr-isis command, specifying the session ID output from the lsp-ping.
Perform an LSP ping to a destination segment routing prefix
# tools oam lsp-ping sr-isis prefix-sid 10.20.1.6/32
/oam/lsp-ping/sr-isis/prefix-sid[prefix=10.20.1.6/32]:
Initiated LSP Ping to prefix 10.20.1.6/32 with session id 49152
Display results of the LSP ping
--{ + running }--[ ]--
# info from state oam lsp-ping sr-isis prefix-sid 10.20.1.6/32 session-id 49152
oam {
lsp-ping {
sr-isis {
prefix-sid 10.20.1.6/32 {
session-id 49152 {
test-active false
statistics {
round-trip-time {
minimum 4292
maximum 4292
average 4292
standard-deviation 0
}
}
path-destination {
ip-address 127.0.0.1
}
sequence 1 {
probe-size 48
request-sent true
out-interface ethernet-1/33.1
reply {
received true
reply-sender 10.20.1.6
udp-data-length 40
mpls-ttl 255
round-trip-time 4292
return-code replying-router-is-egress-for-fec-at-stack-depth-n
return-subcode 1
}
}
}
}
}
}
}Performing an LSP trace to a segment routing prefix
To trace the path to any midpoint or endpoint of a segment routing tunnel, use the tools oam lsp-trace command. To display the results, use the info from state oam lsp-trace sr-isis command, specifying the session ID output from the lsp-trace.
Perform an LSP trace to a destination segment routing prefix
# tools oam lsp-trace sr-isis prefix-sid 10.20.1.6/32
/oam/lsp-trace/sr-isis/prefix-sid[prefix=10.20.1.6/32]:
Initiated LSP Trace to prefix 10.20.1.6/32 with session id 49153
Display results of the LSP trace
--{ + running }--[ ]--
# info from state oam lsp-trace sr-isis prefix-sid 10.20.1.6/32 session-id 49153
oam {
lsp-trace {
sr-isis {
prefix-sid 10.20.1.6/32 {
session-id 49153 {
test-active false
path-destination {
ip-address 127.0.0.1
}
hop 1 {
probe 1 {
probe-size 76
probes-sent 1
reply {
received true
reply-sender 10.20.1.2
udp-data-length 60
mpls-ttl 1
round-trip-time 2768
return-code label-switched-at-stack-depth-n
return-subcode 1
}
downstream-detailed-mapping 1 {
mtu 1500
address-type ipv4-numbered
downstream-router-address 10.10.4.4
downstream-interface-address 10.10.4.4
mpls-label 1 {
label 27000
protocol isis
}
}
}
}
hop 2 {
probe 1 {
probe-size 76
probes-sent 1
reply {
received true
reply-sender 10.20.1.4
udp-data-length 60
mpls-ttl 2
round-trip-time 3414
return-code label-switched-at-stack-depth-n
return-subcode 1
}
downstream-detailed-mapping 1 {
mtu 1500
address-type ipv4-numbered
downstream-router-address 10.10.9.6
downstream-interface-address 10.10.9.6
mpls-label 1 {
label 27000
protocol isis
}
}
}
}
hop 3 {
probe 1 {
probe-size 76
probes-sent 1
reply {
received true
reply-sender 10.20.1.6
udp-data-length 32
mpls-ttl 3
round-trip-time 4429
return-code replying-router-is-egress-for-fec-at-stack-depth-n
return-subcode 1
}
}
}
}
}
}
}
}