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1. Uplink process
a. Switch A adds its uplink path information (including its WWN and domain ID) to the STR
request packet and sends the packet to the next hop, Switch B.
b. After receiving the packet, Switch B replies with an STR ACC packet to Switch A.
c. Switch B adds its uplink path information to the received STR packet and sends it to the
destination switch, Switch C.
d. After receiving the packet, Switch C replies with an STR ACC packet to Switch B.
e. Switch C adds its uplink path information to the received packet. The collection of uplink path
information is complete.
2. Downlink process
a. Switch C sends the STR request packet to Switch A hop by hop in the same way as in the uplink
process.
b. After receiving the STR request packet with a downlink flag, Switch A outputs information
about all uplink and downlink switches.
Configuration procedure
Task Command
Remarks
Detect bidirectional routing
information between source
and destination.
fctracert [ -t timeout ] fcid fcid vsan vsan-id
Available in any view.
To abort the FC tracert
operation during the
execution of this command,
press Ctrl+C.
FC tracert configuration examples
Network requirements
As shown in Figure 34, detect bidirectional routing information between Switch A and Switch C, and
identify the faulty node (if any).
Figure 34 Network diagram
Configuration procedure
1. Configure Switch A:
# Configure the switch to operate in advanced mode. (Skip this step if the switch is operating in
advanced mode.)
<SwitchA> system-view
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