CAN/CSA-ISO/IEC ISP 10612-9-99 (R2008)

1 Scope
 

1.1 General
ISO/IEC ISP 10612 is applicable to interworking units concerned with operating in the Open Systems Interconnection (OSI) environment. It specifies a combination of OSI base standards that collectively provide a MAC relay function between LAN subnetworks.This part of ISO/IEC ISP 10612 is applicable to interworking units operating between Token Ring and FDDI LAN subnetworks.
 
ISO/IEC ISP 10612-1 specifies the relay function and LAN subnetwork-independent requirements, ISO/IEC ISP 10612-3 specifies the Token Ring LAN subnetwork-dependent requirements, ISO/IEC ISP 10608-14 specifies the FDDI LAN subnetwork-dependent requirements, and this part of ISO/IEC ISP 10612 defines the profile RD53.54.
 

1.2 Position within the Taxonomy
The taxonomy of OSI profiles is defined in ISO/IEC TR 10000-2. This part of ISO/IEC ISP defines the profile:
 
RD53.54 Relaying the MAC service, using transparent bridging, between a Token Ring LAN subnetwork and an FDDI LAN subnetwork.
 
1.3 Scenario
Figure 1 illustrates the configuration of systems to which this part of ISO/IEC ISP 10612 is applicable. The figure shows two reference points, but an implementation of this profile may include more attachments to Token Ring LAN and FDDI LAN subnetworks with a reference point corresponding to each.
 
 This part of ISO/IEC ISP 10612 specifies the required functions from the supporting protocol stack shown in figure 2.