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Packets are not being forwarded after disabling/enabling LAG ports in VPWS

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TitlePackets are not being forwarded after disabling/enabling LAG ports in VPWS
Symptoms
After disabling and enabling the LAG ports in VPWS, the packets are not forwarded in the VPWS service. 
Topology: 
VPWS client1 ----- (5) PE1-SW(1-4) ------ (13-16)PE2-SW(21) ------ VPWS Client 2
In the above setup, after disabling/enabling the sharing between PE1 and PE2, the VPWS client traffic is not forwarded. 
 
Environment
Exos 15.6.3
Summit X670
VPWS configuration. 
Cause
It is identified that the hardware programming was not properly done after disabling/enabling the sharing. Hence the traffic was not forwarded over the VPWS service. This is identified as the bug and the CR xos0064175 is created to fix this. 
Resolution
Fix is available in 16.1.3.6 patch 1-8 and above. 
Additional notes

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