From: dkscaccia@yahoo.com   
      
   Hi All,   
      
   I am a tech professional who is somewhat new to the world of telecom   
   networking and looking for some general information that will help me in a   
   new role I am looking to move to.  I appreciate anyone that can help me   
   answer these general questions:   
      
   #1 - If company has built a private network and they say they are using   
   "straight IP".  What does that mean to you?  Does that mean they are using   
   VPNs to connect different parties together?   
      
   #2 - If you are using an IP VPN, does mean there is no layer 2 protocol, in   
   use, when communicating router to router?  I was always under the   
   impression that there had to be some layer 2 encapsulation?   
      
   #3 - Along the lines of question #2....If are using a T1 line to connect   
   into a IP VPN, does layer 2 exist on the T1 line until you get to the IP   
   VPN or do you also use "straight IP".   
      
   #4 - When people talk about VPNs are there different types of VPNs.  For   
   example is IPSEC & MPLS two different types of VPNs?   
      
      
   I have tried to research my questions throughout the internet, but I   
   haven't been able to find the above answers or grasp the concepts.  I would   
   appreciate anyone that can assist me with the above questions.   
      
   Thanks.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)