Symptom:
IE8/9 throws error while creating VPN with 'Enable VPLS' checked , however VPN is actually created.

Conditions:
Problem Detail:
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 Steps To Re-create:
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 1) Create a VPN
 2) Choose a Customer
 3) check the 'Enable VPLS' cehckbox
 4) Save VPN

 Actual Results:
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  22 : SQL Exception while inserting record The error could have been caused by a VPN with same name already present. 
 
 Expected Correct Operation:
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 VPN should get saved, since its a new VPN without any similar name existing.