Technical data

6-8 Fabric OS Administrator’s Guide
Publication Number: 53-0000518-09
Viewing Routing Information Along a Path
6
Paths always originate on the local switch. The path destination can be specified by domain or port. By
default, the path will be the path taken by traffic from the source to destination port, but you can also
specify all or portions of a path.
Refer to the Fabric OS Command Reference Manual for details on the pathInfo command.
This example is from a SilkWorm 3900 switch (other models provide similar information):
The information that pathInfo provides is:
Extended stats Detailed statistics on every link.
Trace reverse path Traverses from the destination switch back to the source switches.
Source route Forces the frame to follow a specified path to reach the destination.
Timeout The maximum time to wait for a response from pathInfo, in seconds.
switch:admin> pathinfo
Max hops: (1..127) [25]
Domain: (1..239) [-1] 1
Source port: (0..255) [-1]
Destination port: (0..255) [-1]
Basic stats (yes, y, no, n): [no]
Extended stats (yes, y, no, n): [no]
Trace reverse path (yes, y, no, n): [no]
Source route (yes, y, no, n): [no]
Timeout: (1..30) [10]
Target port is Embedded
Hop In Port Domain ID (Name) Out Port BW Cost
---------------------------------------------------------
0 E 10 (SW3900) 15 2G 500
1 7 1 (swd3900TechPu E - -
switch.admin>
Hop The hop number. The local switch is hop 0.
In Port The port that the frames come in from on this path. For hop 0, the source port.
Domain ID The domain ID of the switch.
Name The name of the switch.
Out Port The output port that the frames use to reach the next hop on this path. For the last
hop, the destination port.
BW The bandwidth of the output ISL, in Gbit/sec. It does not apply to the
embedded port.
Cost The cost of the ISL used by FSPF routing protocol. It only applies to an E_Port.