Allied Telesis AR400 Series Router - Manual (Page 81)

Physical and Layer 2 Interfaces 81
Software Release 2.6.1
C613-02021-00 REV D
PPPoE
PPP over Ethernet (PPPoE) is defined in RFC 2516 “A Method of Transmitting
PPP Over Ethernet”. PPPoE is used to run PPP over the Ethernet. The same
authentication, billing and transfer systems as for PPP are then available in
Ethernet networks.
PPP over Ethernet enables multiple hosts at a remote site to share the same
access device, while providing the access control and billing functionality of
dial-up PPP connections.
The router behaves as a host, as defined in RFC 2516, creating PPP links over
Ethernet to services on remote Access Concentrators.
Frame Relay (AR410 only)
Frame Relay is a wide area network service, defined by ITU-T (formerly
CCITT), ANSI and vendor standards, to which routers may connect in order to
communicate with one another and exchange data. Frame Relay is one of the
services that you can purchase from a service provider to link several offices
together at high speed. Connections are made via synchronous lines, ISDN
calls or G.703 TDM (Time Division Multiplexing) links.
To configure Frame Relay follow these steps
The following steps are required:
1. Create the Frame Relay interface.
2. Add Static DLCs if required.
3. Add Logical Interfaces if required.
4. Enable routing modules to use the interface.
1. Create the Frame Relay interface
To create and associate the Frame Relay interface with a synchronous
interface or an ISDN call, enter the command:
CREATE FR=n OVER=physical-interface
where n is the number of the Frame Relay interface and physical-interface is
a synchronous interface such as “syn0” or an ISDN call such as “isdn-Head
Office”.
To display each Frame Relay interface, the physical interface it uses, and
the logical interfaces it provides, enter the command:
SHOW FRAMERELAY
A feature of Frame Relay is the dialogue that the network maintains with
the devices connected to it. This dialogue is known as the Local
Management Interface (LMI). A LMI is not provided by all Frame Relay
networks. Your router supports Frame Relay networks that do not run the
LMI by allowing the configuration of static Data Link Connections (DLCs).
Parameters that affect the LMI dialogue are also set with the CREATE
command. These parameters, and the values that they can take, are defined
in the Frame Relay standards. Default values for the LMI parameters are
defined in the standards, and are used when parameters are not supplied.
Consult your Frame Relay network provider before making changes to the parameters
that affect the LMI dialogue.