Before You Set Up the Leased-Line Link (System Administration Guide: Network Services)

System Administration Guide: Network Services

Before You Set Up the Leased-Line Link

When your company rents a leased-line link from a network provider, you typically configure only the system at your end of the link. The peer at the other end of the link is maintained by another administrator. This individual might be a system administrator at a remote location in your company or a system administrator at an ISP.

Hardware That Is Needed for a Leased-Line Link

In addition to the link media, your end of the link requires the following hardware:

Synchronous interface for your system
Synchronous unit (CSU/DSU)
Your system

Some network providers include a router, synchronous interface, and a CSU/DSU as part of the customer premises equipment (CPE). However, necessary equipment varies, based on the provider and any governmental restrictions in your locale. The network provider can give you information about the unit that is needed, if this equipment is not provided with the leased line.

Information to Be Gathered for the Leased-Line Link

Before you configure the local peer, you might need to gather the items that are listed in the next table.

Table 16–4 Planning for a Leased-Line Link


Information	Action
Device name of the interface	Refer to the interface card documentation.
Configuration instructions for the synchronous interface card	Refer to the interface card documentation. You need this information to configure the HSI/P interface. You might not need to configure other types of interface cards.
(Optional) IP address of the remote peer	Refer to the service provider documentation. Alternatively, contact the system administrator of the remote peer. This information is needed only if the IP address is not negotiated between the two peers.
(Optional) Name of the remote peer	Refer to the service provider documentation. Alternatively, you can contact the system administrator of the remote peer.
(Optional) Speed of the link	Refer to the service provider documentation. Alternatively, you can contact the system administrator of the remote peer.
(Optional) Compression that is used by the remote peer	Refer to the service provider documentation. Alternatively, you can contact the system administrator of the remote peer.