Components of the Network Model
4-5
8000-A2-GB21-20
November 1997
5446 RTU Proxy ARP
The HotWire 5446 RTU utilizes proxy ARP to enable connectivity between end
systems that are attached to separate RTUs, but reside on the same subnetwork.
The HotWire 5446 RTU will proxy ARP for the end-user system that is physically
connected to another HotWire 5446 RTU where the destination end-user system
is logically connected to the same subnetwork as the sender end-user system.
Management Domain Components
The following illustration shows the components of the network management
domain. Note that the router between the MCC card’s 10BaseT interface and the
DCE Manager is optional. The MCC card, as previously noted, provides
consolidated management for the DSL cards and HotWire RTUs from remote
network management workstations by means of SNMP, telnet, or by local access
through its VT100-serial interface.
97-15464-02
Router
135.1.3.254/255.255.255.0
135.1.2.1/255.255.255.0
DCE Manager
MCC Card
135.1.2.2/255.255.255.0
135.1.3.1/255.255.255.0
8546 DSL Card
135.1.3.2/255.255.255.0
DSL Port 1
DSL Port 2
DSL Port 3
DSL Port 4
RTU1
135.1.3.4
RTU2
135.1.3.5
RTU3
135.1.3.6
RTU4
135.1.3.7
DSLAM
10BaseT
*
*
Ordinarily, when DCE Manager
is on a separate subnetwork, it
will not be in the 135.1.3 or
135.1.2 subnetwork.
8540 DSL Card
135.1.3.3/255.255.255.0
DSL Port 1
DSL Port 2
DSL Port 3
DSL Port 4
RTU1
RTU2
RTU3
RTU4
Backplane
