User`s guide

IP Address Allocation
5-2
8000-A2-GB21-10
June 1997
The following illustrates the logical interface naming convention.
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DSL
Card 1
s1c
s1d
s1e
s1f
s1b
DSL Port 1
DSL Port 2
DSL Port 3
DSL Port 4
e1a
10BaseT
Interface
to ISP
DSL
Card 2
s1c
s1d
s1e
s1f
s1b
DSL Port 1
DSL Port 2
DSL Port 3
DSL Port 4
e1a
10BaseT
Interface
to ISP
MCC
Card
e1a
s1b
10BaseT
Interface to
Management
Network
DSLAM System
System
Backplane
Bus
Assigning IP Addresses
In the HotWire DSLAM network model, there are two distinct domains: a
management domain and a customer domain.
Within the management domain, there are two subnets as described in the
Management Domain Components section in Chapter 4, Components of the
Network Model
. Within the customer domain, one of two IP address allocation
schemes can be followed: host addressing or structured subnet addressing. The
following sections describe these schemes.
Host Addressing
Host addresses within the customer domain are assigned to end-user systems.
Because they are host addresses, they have a subnet mask of 255.255.255.255
and can be geographically dispersed. This conserves address space, but may
not scale well to large numbers of end-users. Manual configuration is required for
every host address and routing performance may be decreased.