Ethernet; Bridging - 3Com 4007 Release Note

The following MIB objects have write access according to the RFC's.
However, 3Com implementation does not let you change these values
to anything other than the default value:
ifAdminStatus, ipDefaultTTL, etherStatsDataSource, ipRouteAge
The Administration Console interface incorrectly displays the following
unsupported trap:
MIB-II: Authentication Failure
Because the 64-bit counters in the ifXTable are read-only counters,
you cannot reset them. Attempting to do so results in no response
from the SNMP agent, and the values are not set.
If you reset the 9-port 1000BASE-SX Gigabit Ethernet Layer 2
Switching Module from the EME, you see MIB II Cold Start and Link
Up traps from the module, but you do not see a Link Down trap. The
normal
occurred and the module has reset, even though you did not see a
Link Down trap.

Ethernet

The following Ethernet statistics are not reset after you enter the
module baseline set
rxPeakFrameRate, txPeakFrameRate, rxPeakByteRate,
txPeakByteRate
If a bridging loop exists on a switching module or switch fabric
module, output from the
30 minutes to display. (30080)

Bridging

The bridge incorrectly forwards frames that are sent to their own port
MAC address.
Once the bridge address table times out, if the MAC address was
learned by a loopback port, ping packets are dropped and the bridge
port stats
address was learned by the sourceport, ping packets go through
successfully.You can tell if you have a bad cable by monitoring the
same segment discard
Link Up... Link Down... Link Up
command:
ethernet detail
same segment discard
counter. (30250)
Known Problems in Release 3.0.5
sequence has probably
command can take up to
counter increases. If the MAC
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