10-6
C
HAPTER
10: FDDI N
ETWORKS
Table 10-2 provides a connection rule matrix summarizing the validity of
most types of connections.
Dual Homing
When the operation of a dual attachment node is crucial to your network, a
configuration called dual homing can provide added reliability. A network
administrator using dual homing can determine a station’s operation by
setting the appropriate configuration policy. The dual-homed station can be
configured: with both links active or with one link active and one
connection withheld as a backup. It becomes active only if the primary link
fails. See Figure 10-4.
Table 10-2
Connection Rule Matrix
Other Port
A
B
S
M
This Port
A
V, U
V
V, U
V
B
V
V, U
V, U
V
S
V, U
V, U
V
V
M
V
V
V
I, U
V — A valid connection
I — An illegal connection
U — An undesirable connection (requires notice to SMT)
Summary of Contents for LANPLEX 2500
Page 1: ...LANPLEX 2500 OPERATION GUIDE Part No 801 00344 000 Published November 1996 Revision 03...
Page 14: ......
Page 18: ...1 4 CHAPTER 1 LANPLEX MANAGEMENT AND ADMINISTRATION OVERVIEW...
Page 78: ...III Chapter 9 FDDI Overview and Implementation Chapter 10 FDDI Networks FDDI TECHNOLOGY...
Page 97: ...IV Chapter 11 ATM Networks ATM TECHNOLOGY...
Page 116: ...V Appendix A SNMP MIB Support Appendix B Technical Support APPENDIXES...
