This type of desigh is used for P2P connectvity through switch

Hi Tin,In your case , 50 and 104 tagged traffic will flow between Sw-01 and Sw-02Suppose Packet-A flow from Sw-02 to Sw-01 Sw-02 port @ fe0/12 only accept   104 tagged packet-A  and send untagged traffic towards Sw-01 port @ Gi 0/39And Sw-01 port @ G...

Hi Josheph , How PPP is support for Jumbo ping....?

Thanks JonOn Multilink , fragment is disable....Is this is the reason ???/ 

Use MRTG or PRTG software to moniter the link