RFC 1329 (rfc1329) - Page 2 of 28
Thoughts on Address Resolution for Dual MAC FDDI Networks
Alternative Format: Original Text Document
RFC 1329 Address Resolution for Dual MAC FDDI Networks May 1992
FDDI station can be modified to allow this. According to the FDDI
SMT standard [1], different addresses are required for all MACs on
the primary and the secondary ring.
In this paper, the MAC in a single MAC station is assumed to reside
on the primary ring. The application of single MAC stations which
have their MAC attached to the secondary ring is not precluded, but
therefor additional connectivity between the two rings is required.
These configurations are beyond the scope of this document.
5. The Application of Transparent Bridges
Transparent bridges can provide links to other 802 LANs or further
inhomogeneous FDDI rings. The connection between two inhomogeneous
FDDI rings can be realized by one or two transparent bridges. When
two transparent bridges are used, one transparent bridge links the
primary rings, the other the secondary rings. If two secondary rings
are connected by a transparent bridge, a path of transparent bridges
must exist between the two primary rings. No transparent bridges are
allowed between the primary and the secondary ring.
6. Protocol Layers in Single MAC Stations
The new protocol layer, named load sharing layer, is drafted to be
introduced only in dual MAC stations. In single MAC stations, IP and
ARP are working on top of the Subnetwork Access Protocol (SNAP) 04]
and the Logical Link Control protocol (802.2 LLC) [3]. LLC type 1 is
used because connectionless services are investigated only.
Kuehn