A 2800-series switch on J.15.09 polled over CLI came back with no
interfaces and an empty OS version, while VLANs and ARP parsed fine.
`show interfaces brief` on that firmware has an Intrusion Alert column
between the `|` and Enabled, and puts Mode before MDI rather than after:
Port Type | Alert Enabled Status Mode Mode ...
3-Trk3 100/1000T | No Yes Down 1000FDx MDI ...
The regex read Alert as Enabled, then failed on Yes where it wanted
Up|Down, so no line matched. It now skips the Alert column where there is
one and takes the speed from either position. Trunk members are listed as
`<port>-Trk<n>`; the port is `<port>` and the suffix becomes its
trunk_group, so the per-port `show interfaces 3` is a command the switch
knows.
The empty OS version was the alternatives list in _send_command. It moved
to the next command on "% Invalid" or "Error", but ProCurve rejects an
unknown command with "Invalid input: system-information" -- so that line
was parsed as system information. "Invalid input" now counts as failure.
Getting there took longer than it should have, because the first symptom
was "Authentication failed: Login failed". That was Telnet's error, the
last transport tried; the REST probe and both SSH attempts had failed
before it and said nothing above debug level. In fact the switch had run
out of CLI sessions and closed SSH straight after the password. open()
now records why each transport failed, and both the auth error and the
final "Cannot connect" carry that list.
Fixtures are that switch's output, with hostname, serial and MAC
replaced.
Closes#2Closes#3Closes#4
Christian Manivong
f35b59ec2d