IP Address Allocation
5-9
8000-A2-GB21-30
April 1998
To configure the MCC card, the DSL card management IP addresses, and the
Hotwire 5446 RTU management IP addresses, use the Hotwire DSLAM user
interface. For step-by-step instructions, see Chapter 4,
Configuring the Hotwire
DSLAM
, of the
Hotwire DSLAM for 8540 and 8546 DSL Cards User’s Guide
.
Peer IP Addresses
The s1b backplane ports are configured with peer IP addresses. Peer IP
addresses are used to indicate directly-connected systems.
H For the MCC card’s s1b (backplane) interface, the peer IP address should be
set to indicate the subnet encompassing the DSL cards and RTUs.
The following illustration shows a Hotwire DSLAM system configured with
one MCC card and four DSL cards.
97-15468-01
MCC Card
s1b base address:
135.1.3.1/255.255.255.0
peer IP address:
135.1.3.0
net
DSLAM System
System Backplane Bus
DSL Card 1
s1b: 135.1.3.2/255.255.255.0
DSL Card 2
s1b: 135.1.3.7/255.255.255.0
DSL Card 3
s1b: 135.1.3.12/255.255.255.0
DSL Card 4
s1b: 135.1.3.17/255.255.255.0
— The IP address of the MCC card’s s1b interface is 135.1.3.1.
— The IP addresses of the DSL card’s s1b interfaces are all in the same
subnet (135.1.3).
— Therefore, the directly connected peer subnet is its peer IP address,
135.1.3.0.
NOTE:
For structured subnetting on the backplane, the peer IP address must be the
first in the subnet. For example, if s1b has an IP address of 135.1.3.65 and a
subnet mask of 255.255.255.192, then the peer IP address must be
135.1.3.64.
