Allied Telesis AT-8203 User Manual
Page 9
AT-8202 and AT-8203 Installation Guide
3
As shown in Figure 2, the FDDI uplink allows workstations on Ethernet and
Fast Ethernet networks to reach remote systems across a fiber optic backbone
ring network.
Figure 2:
The FORMULA 8200 in an FDDI Network
Remote systems can be network file servers, workstations, FDDI concentrators,
switches, or routers running compatible TCP/IP software. The FDDI uplink
module supports IP and ARP packets over FDDI networks, as described in RFC
1390.
The following features are supported by the FDDI uplink module:
❑
Asynchronous LLC frames for downlink bridging
❑
Ethernet Type II, IEEE 802.3 SNAP packets for uplink capability
(protocol sensitive)
❑
Translational bridging between FDDI and Ethernet
❑
IP and ARP frame encapsulation (RFC 1042 and RFC 1390)
❑
IP fragmentation (RFC 791)
❑
802.1d Spanning Tree algorithm
❑
64 CAM entries with aging algorithm for MAC address filtering
❑
Standard FDDI MIB support using SNMP, as well as SMT 7.3 support
❑
Configuration through command-line interface
❑
Board status LEDs
❑
Two SC (fiber optic) connectors supporting both DAS and SAS
configurations
❑
Optical bypass connector
10/100BASE-T NETWORK PORTS
9
10
11
12
10/100BASE-T NETWORK PORTS
13
14
15
16
8201
10/100BASE-T NETWORK PORTS
1
2
3
4
10/100BASE-T NETWORK PORTS
5
6
7
8
STATUS
POWER
RESET
GREEN - LINK
YELLOW - DIAG
GREEN - ACTIVITY
YELLOW - COLLISION
RS-232 TERMINAL PORT
10/100BASE-T NETWORK PORTS
1
2
3
4
10/100BASE-T NETWORK PORTS
5
6
7
8
GREEN - LINK
YELLOW - DIAG
GREEN - ACTIVITY
YELLOW - COLLISION
DAS
FORMULA 8200
FDDI Concentrator
10/100BASE-T NETWORK PORTS
9
10
11
12
10/100BASE-T NETWORK PORTS
13
14
15
16
8201
10/100BASE-T NETWORK PORTS
1
2
3
4
10/100BASE-T NETWORK PORTS
5
6
7
8
STATUS
POWER
RESET
GREEN - LINK
YELLOW - DIAG
GREEN - ACTIVITY
YELLOW - COLLISION
RS-232 TERMINAL PORT
10/100BASE-T NETWORK PORTS
1
2
3
4
10/100BASE-T NETWORK PORTS
5
6
7
8
GREEN - LINK
YELLOW - DIAG
GREEN - ACTIVITY
YELLOW - COLLISION
FORMULA 8200
SAS