Technical information

ADC Telecommunications, Inc.
250 C
HAPTER 10: PACKET OVER SONET ADMINISTRATION
Configuring Point-to-Point Protocol (PPP)
PPP delivers data over SONET networks. SONET links are provisioned as
point-to-point circuits. The system encapsulates IP datagrams using PPP, then
places the PPP frames into the SONET payload before transmission over the
SONET circuit. PPP also provides security protocols that support the
authentication of peers.
PPP administration on a POS interface includes:
■ Viewing PPP Summary Information — You can view a summary of all POS
interfaces installed on the system and associated PPP parameters.
■ Configuring PPP Security — POS interfaces support both Challenge
Handshake Authentication Protocol (CHAP) and Password Authentication
Protocol (PAP) so that only trusted devices can participate in the creation
of a point-to-point circuit.
■ Configuring LCP — As part of establishing the PPP connection, a POS
interface uses Link Control Protocol (LCP) packets to configure and test
the data link.
■ Enabling NCP — A Network Control Protocol (NCP) is used to configure
and enable network layer protocol communication. In this case, the
network layer protocol used over the SONET circuit is IP; the NCP used to
enable transmission of IP datagrams is the IP Control Protocol (IPCP).
PPP encapsulation over SONET STS-/STM-1(155 Mbps) is described in RFC
2615.
You may configure PPP and POS in either order.
Before You Begin
To view the PPP Administration on a POS interface summary information,
follow this procedure:
1. Navigate to Network Browser > GroupName > ChassisName > Cuda
Chassis Manager > Configuration > IP > PPP.
2. Click the Summary tab.
3. Click Refresh to update the information.