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Supported PC Flash
Memory Cards
Table 18 lists 3Com
-
approved vendors of the PC flash memory card.
The 20 MB flash memory card has a formatted capacity of 19.86 MB. For dual
image and full dump capability, 3Com recommends using a 20 MB card used in
the NETBuilder II bridge/router.
You can also purchase the blank flash memory card from 3Com:
■ DPE 20 MB card is 3C6086
Line Error Reporting on
PathBuilder S5xx Series
Switch Statistics Display
The PathBuilder series switch reports FSI CRCs under the path statistics. This entry
reflects line errors after hardware error assisted recovery has taken place. The
number of actual line errors present before hardware error assisted recovery has
taken place may be much higher.
T3 Bandwidth Limitation Due to a driver limitation you cannot combine two T3 paths to double the
bandwidth.
MBRI Ownership During
Board Swapping
Port ownership and port/path naming inconsistencies can occur as MBRI boards
are swapped in and out of a NETBuilder II bridge/router chassis. Replacing an MBRI
board with a non-MBRI board in the same slot requires that the NETBuilder II
bridge/router be rebooted. After the bridge/router is rebooted, there are no
port/path naming problems.
Multiport MBRI Module
SNMP Management
The Multiport MBRI module cannot be configured using SNMP.
Token Ring+ Modules The maximum physical frame size that can be forwarded by the Token Ring+
modules with Enterprise OS software is 4,500 bytes. This software limitation
affects routing, source route bridging, and transparent bridging.
Token Ring Auto
Start-up
The Token Ring and Token Ring+ modules may enter the ring at the wrong speed
with certain MAU or station configurations. You can manually configure the -PATH
BAud value to 16,000 or 4,000 to avoid this situation.
Table 18 3Com-approved 20 MB Flash Memory Cards
Vendor and Description Part Number
Intel Series 2 iMC020FLSA
Intel Series 2+ iMC020FLSP
AMD Series D AmC020DFLKA