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EMC Connectrix DS-32B2 and ED-12000B Fabric OS Reference Manual
Telnet Commands
crossPortTest
Test the functional operation of the switch.
Syntax
crossPortTest [passCount,loopbackmode, speedmode]
Availability Admin
Description Use this command to verify the functional operation of the switch.
This command verifies operation by sending frames from port M’s
transmitter and looping the frames back through an external fiber
cable into another port N’s receiver. This exercises all the switch
components from the main board to the SFP, from the SFP to the fiber
cable, from the fiber cable to the SFP, and from the SFP, back to the
main board.
References to GBIC in this manual can also be considered references to SFPs.
With the lb_mode operand set to 1 it is also possible to test ports with
loopback plugs that connect each port back to itself.
The cables can be connected to any port combination as long as the
cables and SFPS connected are of the same technology — a short
wavelength SFP port is connected to another short wavelength SFP
port using a short wavelength cable, and a long wavelength port is
connected to a long wavelength port.
For complete testing, ports connected should be from different
ASICs.
Only one frame is transmitted and received at a given time, and the
port LEDs flicker green while the test is running.
The test method is as follows:
1. Determine which ports are connected to each other.
2. Enable ports for cabled loopback mode.
3. Create a frame F of maximum data size (2112 bytes).
4. Transmit frame F via port M.
5. Pick up the frame from its cross connected port N. Complain if
port other than N actually received the frame.