3-7
Operation
learning. When operating in SecureFast Switch mode, all Þltering/forwarding
decisions are made based on a DA-SA pair and its receive port. The SmartSwitch
9000 hub can support modules operating in traditional switch mode and
SecureFast Switch mode simultaneously. This provides security when-and-where
needed, and ease-of-conÞguration where security is not required.
i960 Core
The i960 core provides the SNMP protocol stacks to support industry standard
MIBs. Additionally, Cabletron enterprise extension MIBs are supported for each
media type. Advanced management services, such as the Distributed LAN
Monitor, telnet and network address to MAC address mapping, are also provided
by the i960 core.
The Host Engine sends and receives packets via the CPU SmartSwitch 9000 ASIC
Interface. This allows the traditional switch to perform spanning tree protocol and
other traditional switching functions. The SMB Interfaces provide communication
to the Host Engine for management functions and communication with other
modules in the chassis.