PM3350 ELAN 8 X10
ELAN 8X10
DATA SHEET
PMC-970109
ISSUE 3
8 PORT ETHERNET SWITCH
Spanning tree bridging capabilities
The ELAN 8x10 optionally implements the 802.1d spanning tree protocol, allowing it to
interoperate with IEEE-standard transparent bridges. The spanning tree protocol is
supported by the on-chip Switch Processor unit, and does not require an external CPU
for implementation.
Management and monitoring support
The ELAN 8x10 maintains full RMON port and host statistics for all ports and all learned
MAC addresses at wire rates. These statistics may be retrieved either in-band (via
SNMP agent) or out-of-band (via the expansion bus).
The ELAN 8x10 implements an optional on-chip SNMP agent on top of an integral
UDP/IP protocol stack, supporting SNMP and the RFC1493 bridge MIB. When multiple
ELAN 8x10 chips are present in a system, they may be configured to intercommunicate
and create a distributed MIB in a transparent manner. Alternatively, the system vendor
may elect to disable the SNMP agent and access the ELAN 8x10 statistics and
configuration variables directly from the expansion port.
Status codes may be displayed on a set of LEDs (Light Emitting Diodes) during self-test
and operation at the system implementer's discretion. These status codes are output to
a register mapped into the ELAN 8x10 memory data bus at a specific address location.
Device failure during self-test, or specific operating conditions, may be displayed using
front-panel LEDs connected to the register.
Autoconfiguration via Local PROM/EEPROM
The ELAN 8x10 will automatically self-configure upon power-up using user-defined
parameters supplied in an external EPROM or EEPROM. The EPROM/ EEPROM may
be connected to the memory bus and mapped to any address range; the ELAN 8x10
will automatically locate the EPROM or EEPROM and load the configuration
parameters from it. The ELAN 8x10 also contains hardware that enables it to write to
standard 3.3-volt EEPROM devices, thus permitting configuration information to be
changed dynamically.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND PMC-SIERRA, INC. CUSTOMERS ONLY
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PMC [ PMC-SIERRA, INC ]
