EMC DS-32B2 User Manual

Run test for back-end miniswitch-to-miniswitch links.

backport [-nframes num][-ports list][-lb_mode 

mode][-fr_type type] [-extonly enable]

Admin

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.