Introduction
1-2
Features
Processor
The 9E312-12 is equipped with an advanced Intel i960 microprocessor. This
microprocessor provides a platform for all management functions such as
Spanning Tree, RMON, and MIB support within a scalable RISC-based
architecture.
Fast Packet Switching
The 9E312-12 incorporates a hardware based switch design referred to as a Fast
Packet Switch (FPS), a collection of custom ASICs designed specifically for high
speed switching. Because all frame translation, address lookups, and forwarding
decisions are performed in hardware, the 9E312-12 can obtain a throughput
performance of greater than 130K pps.
Management
The 9E312-12 features SNMP for local and remote management. Local
management is provided through the RS-232 Com ports on the MMAC-Plus
Environmental Module using a standard VT-220 terminal or emulator. Remote
management is possible through Cabletron’s SPECTRUM or any SNMP
compliant management tool. Included as management features are the IETF
Standard Management Information Base (MIBs) RMON (RFC1271), IETF MIB II
(RFC-1213), IETF Bridge MIB (RFC-1493), and a host of other Cabletron enterprise
MIBs. The 9E312-12 also offers the user a wide variety of statistical network
management information to enhance network planning and troubleshooting. This
module provides information for each front panel Ethernet 10Base-T port,
including packet counts along with errored frame information such as collisions,
CRCs, and Giants, via a variety of industry standard and private MIBS. Industry
standard IEEE 802.1d bridging, including Spanning Tree Algorithm, is supported.
Connectivity
The 9E312-12 module has one interface to the INB and twelve front panel Ethernet
connections. The INB interface is a fixed connection to INB-1 which allows the
9E312-12 to communicate with other MMAC-Plus modules supporting various
LAN technologies including: Token Ring, FDDI, Ethernet, WAN and ATM. The
front panel Ethernet connections are via standard RJ-45 connectors supporting
UTP and STP cabling up to 100 meters in length.
