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Traffic over 10GE Interface Board Is Interrupted Because of a Great Deal of Broadcast Packets at the Port of NE80E

Publication Date:  2012-07-27 Views:  60 Downloads:  0
Issue Description
Because a great deal of broadcast packets are transmitted to NP at link for processing, service disruptions occur to the interface board (10GE) of NE80E; there are no OUTPUT packets, and a great deal of NPS error information occurs to the log. Service is restored after resetting the interface board. 
Alarm Information
A great deal of NPS error information occurs in log. 
Handling Process
1. Upgrade NE80E to  VRP5.10-12002J.06 ( or the later), and the problem is solved. 
2. In system mode, enter  _d  diagnosis mode, and use efu pst broadcast <slotid> disable command to avoid the problem. However, the command cannot help recover the configurations which will take effect after reset of interface board. 
Root Cause
If a great deal of broadcast  packets about port state are transmitted to NP at uplink through the NP at downlink for processing, the channel number at uplink is mistaken for an error in program.  So memory fails to access the packets, suspending the task. The traffic to downlink is interrupted. Such a problem is rare to occur. 
Suggestions
Null

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