Configuring The Physical And Data Link Layers - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

Appendix A: Example Configuration

Configuring the Physical and Data Link Layers

A-6
Configuring the Physical and Data Link
Layers
This example does not include the steps for setting up a console session with
the router and accessing the Secure Router OS. You should be familiar with
these processes before reviewing this example.
Berlin Router
Because nearly 1,000 employees work at the Berlin office, ProCurve Retail's
LAN includes 1,000 workstations, several server farms, and the company's
Internet and intranet servers. The company uses ProCurve Networking
switches, which have Layer 3 routing capabilities, to provide connectivity and
routing at the LAN level. Two core switches connect directly to the two
Ethernet ports on the ProCurve Secure Router 7203dl.
This router runs a multilink Frame Relay connection to the branch offices
outside of Germany to provide access to the servers and data that the employ-
ees require. Berlin also runs a dedicated E1 line using the Point-to-Point
Protocol (PPP) for a local connection to the Internet. In fact, all the offices
have a PPP connection to a local Internet Service Provider (ISP) for Internet
access.
The Berlin headquarters and the Mannheim office are connected through
ADSL running PPP over Ethernet (PPPoE). ADSL provides a high-bandwidth
connection for a lower cost than an E1-carrier line, particularly since the
connection does not cross international boundaries. Because the Berlin and
Mannheim networks exchange mission critical traffic, ProCurve Retail
decides to install a backup ISDN BRI S/T module in the Berlin router to provide
persistent backup for the ADSL connection.
The following are the steps to configure the Physical Layer and Data Link
Layer connections for the Berlin router.