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backPort
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Telnet Commands
backPort
Run test for back-end miniswitch-to-miniswitch links.
Syntax
backport [-nframes num][-ports list][-lb_mode
mode][-fr_type type] [-extonly enable]
Availability Admin
Description Use this command to test the backplane routing and VC allocation.
This test applies to single blade as well as multi-blade systems.
The following items are tested:
◆ Proper back-end port domain routing setup such that every user
port has a valid path to every other user port. If a valid path does
not exist between any two user ports then that path will fail to
transmit the first frame between the two ports.
◆ Proper VC mapping such that an arbitrarily large number of
frames may be transmitted without running out of credit. If the
VC credit mapping is not correct, then the test will fail after
enough frames have been sent to exhaust the initial credit. VC
mapping is not tested if the
extonly operand is enabled.
◆ Proper Trunking of backend ports. The frames are sent in bursts.
If the trunking is not set up properly, the burst of frames will not
arrive in order. Note: Since the frames are received without
“spinning” first, this test is not as exhaustive as
spinFab.
◆ ASIC errors along each path. The test will check for CRC and
ENC errors for each port used between the source and destination
ports to help isolate failures. It will also check that each member
of every trunk group along the path has sent or received at least
one frame.
Area routing between user ports is not tested.
Operands This command has the following operands:
-nframes num
Specify the number of frame sequences to
send. The default value is 100.
-ports list
Specify a list of user ports. The default value is
all user ports.