The 5621 offers complete protocol encapsulation support, including
Point-to-Point Protocol (PPP) over ATM, Ethernet over ATM, and IP over ATM.
Users with high-volume data transfers are allowed to aggregate analog or ISDN connections using multilink
point-to-point protocol (MPPP).
Dynamic Connect utilizes the new IETF draft standard PPPoE (
Point-to-Point Protocol over Ethernet).
The product also supports a variety of data encapsulation methods including
Point-to-Point Protocol (PPP) over ATM, Ethernet over ATM, and IP over ATM.
In fact, IP already depends on a number of Layer2 protocols, with Ethernet and PPP (the
Point-to-Point Protocol) the two most Popular in the LAN and WAN, respectively, ATM is just like any other Layer 2 protocol with two important exceptions: ATM is more flexible and capable.
Even though the industry has widely embraced the
Point-to-Point Protocol (PPP) defined by the Internet Engineering Task Force, PPP compliance does not assure compatibility.
The Bisynchronous communications method has many variations, which include a multipoint protocol, dial-up protocol, the
point-to-point protocol, and the transparent.