User`s guide
Introduction
1-29
Figure 1-9. Bridged LAN With Two Host Group Members
1.8.4 IP Routing Over Source Routing
Token Ring networks are often connected by source-routing
bridges. End-stations that communicate across a source-routing
bridging domain must be able to build routes from themselves to
their destinations, specifying the Token Rings to be traversed.
Figure 1-10. OSI Reference Model
LAN A
LAN B LAN C LAN D
HOST GROUP
MEMBER
HOST GROUP
MEMBER
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
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
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
6
Presentation
7
5
4
3
2
1
Application
Session
Transport
Network
Data Link
Physical
Source-routing operates at Layer 2