IBM 8285 Nways, Инструкция по установке и эксплуатации

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5. If you are using single mode A2-MB155 modules, you probably have to define the clocking as external, using the
SET PORT command (the clock is usually provided by the WAN).
6. If you have an workgroup switch with a microcode version greater than 2.0, you have to specify the type of
network (SONET or SDH) at the end of the SET PORT command.
7. If the previous steps did not help, then you require an ATM Analyzer for the following tests:
Ÿ Hardware wrap test through the WAN up to the media module. Install the ATM Analyzer at one side of the
WAN, and the workgroup switch at the other. Disable the NNI port, and enter the command WRAP slot.port
REPLY_MODE ENABLE. The NNI port is now redirecting Received Cells to the transmit side. Now, from the
ATM Analyzer, generate traffic on the VCI=5, and compare the outgoing cells with the incoming cells. If some
cells are lost or corrupted, contact your public network provider. When you are finished, enter the command
WRAP slot.port REPLY_MODE DISABLE.
Ÿ Hardware wrap test through the WAN up to the media module. Install the ATM Analyzer at one side of the
WAN, and the workgroup switch at the other. Enable the NNI port, and create a PVC from the VCI=x to a
VCI=y on the same port, using the command SET PVC. Check that the PVC is active using the command
SHOW PVC ALL. Now, from the ATM Analyzer, generate traffic on the VCI=x, and compare it with the
received cells on the VCI=y. If some cells are lost or corrupted, contact your IBM service representative.
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IBM 8285 Nways ATM Workgroup Switch: Installation and User’s Guide