VSP 9000: SFP/SFP+ connected to a 9024XL/9048GB causes port LED goes amber

Doc ID		SOLN236224
Version:		2.0
Status:		Published
Published date:		21 Dec 2015
Created Date:		10 Sep 2013

Author:

Pallavi Maya

Details

A port which is administratively disabled goes to amber when GBIC is inserted into 9024XL module. The GBICs tested were 10G SR/LR & 1G SX. Problem is that the Port stops blinking green after inserting the GBIC and goes to AMBER. After the GBIC is removed, LED starts blinking green again. If a GBIC is already installed when booting up the VSP, the LED blinks green as expected.

Problem Clarification

If you hot insert an SFP or SFP+ into a 9024XL or 9048GB module, the port is erroneously enabled even if the port is administratively disabled. The LED changes to solid amber, which indicates the port is enabled, or solid green if it connects to a live port.

Cause

Documented in the realease notes of software v3.3.

wi01005012 : The LED will slow blink green if the port is disabled by any number of means such as administratively disabled via cli or a layer 3 shutdown after a loop detection. In the case of this bug, when an SFP is removed, it is automatically disabled and the LED slow blinks green. When the SFP is re-inserted however, because of a code bug, we were enabling the port indiscriminately, even if the port is administratively disabled. Hence the LED would go amber indicating the port is enabled but not achieving link up. The port would have gotten link up if it was connected to another port even if the port was admin down.

Solution

Workaround : The problem corrects itself after you administratively enable the port before or after you insert the SFP or SFP+. If you need to keep the port administratively disabled, enable and disable the port.

Resolution : This issue is resolved in release v3.4. The code now only re-enables a port when an SFP is inserted if the port is administratively enabled.

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