User`s guide

Introduction
1-25
In addition, by overlapping logical networks, a user who moves to
another physical network segment can remain on the same logical
network and retain their net/host IP address, even if he or she is
sharing the new physical network segment with other logical
networks. This is known as address mobility and is a useful Virtual
LAN component that can ease adds, moves, and changes and the
definition of broadcast domains.
Figure 1-7. Multiple Logical Networks On One Physical Network
When assigning multiple IP network addresses to an ATX port, the
port must be configured for routing. In addition, the logical
networks connected to an ATX must see the ATX as a
gateway(router). The way a host accomplishes this is dependent
POWER STATUS ENGINE STATUS TURBO STATUS SUPPLY A SUPPLY B 1.6 Gbps
RESET
PACKET PROCESSING ENGINE
NMS PORT
POWER
FastNET ATX
TM
OFFLINE
PROC
PWR
OCTAL IEEE 802.3 / ETHERNET 10BASE-T
3X 4X 5X 6X 7X 8X2X1X
SEGMENT
LINK
ACT
COL
12345678
OFFLINE
RING 1
RX ST
RING 2
RX ST
RING 3
RX ST
RING 4
RX ST PROC
TX 16 TX 16 TX 16 TX 16 PWR
QUAD IEEE 802.5 TOKEN RING (UTP)
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-FX
TX RX
SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1
RX
LK
TX
RX
LK
TX
RX
LK
TX
PROC
PWR
TX RX TX RX TX RX
OFFLINE
TX PWR
INTELLIGENT FDDI
RING A
RING B
THRU
WRAP RX
PROC
FDDI MIC A FDDI MIC BOPTICAL BYPASS
MULTI-MODE MULTI-MODE
OFFLINE
PROCRX
TX
PWR
QUAD IEEE 802.3 / ETHERNET 10BASE2
SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1
RX
TX
RX
TX
RX
TX
OFFLINE
PROCRX
TX
PWR
QUAD IEEE 802.3 / ETHERNET 10BASE2
SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1
RX
TX
RX
TX
RX
TX
Physical Network
A - Engineering B - Manufacturing
C - Administration
Logical Network A, B, and C