Conversely, canonical frames destined for the FNB bus on the SmartSwitch 9000 backplane are converted into FDDI packets via the 9A426-02 Module’s FDDI Network Interface Block (FNIB), and then forwarded onto the FNB.
Canonical frames destined for the INB bus on the SmartSwitch 9000 backplane are converted into fixed length data packets via the 9A426-02 Module’s INB Network Interface Block (INB NIB), and then forwarded onto the INB.
Features
Processor
The 9A426-02 Module is equipped with an advanced Intel i960 microprocessor. This microprocessor provides a platform for all management functions within a scalable RISC-based architecture.
SmartSwitch Core
The 9A426-02 Module incorporates the SmartSwitch Core, a collection of custom Application Specific Integrated Circuits (ASICs) designed specifically for high speed switching. The SmartSwitch ASIC bus is 64 bits wide with a bandwidth of 640 Mbps. Since all frame translation, address lookups, and forwarding decisions are performed in hardware, the 9A426-02 Module can obtain a throughput performance of greater than 750K pps.
Management
The 9A426-02 Module has one full implementation of SMT (Version 7.3) and SNMP for local and remote management. Local management is provided through the RS-232 Com ports on the SmartSwitch 9000 Environmental Module using a standard VT-220™ terminal or emulator, or via telnet. Remote management is achieved through Cabletron’s SPECTRUM or any SNMP compliant management tool. Switching statistics of the selected FNB interface include frames filtered, frames forwarded, and all Spanning Tree Protocol parameters.
Connectivity
The 9A426-02 Module has two front panel ATM interfaces. An ATM Port Interface Module (APIM) can be installed in one (or both) interface(s). The 9A426-02 Module also has one interface to the INB-2 backplane, and one user-configurable interface to the SmartSwitch 9000 FNB backplane (either FNB-1 or FNB-2, or neither).
Management Information Base (MIB) Support
The 9A426-02 Module provides MIB support including:
•IETF AToM MIB
•IETF FDDI MIB
•IETF Bridge MIB
•A host of Cabletron Enterprise MIBs
