Cabletron Systems 7C03 MMAC SmartSWITCH, User Manual

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Using the 7C0x SmartSwitch Hub View
2-18 Monitoring Hub Performance
For Ethernet ports, the theoretical maximum load is 10 Mbps; for Fast Ethernet,
FDDI, and ATM, it’s 100 Mbps.
• Discard — shows a value for each active port that indicates what percentage
of the total packets received at or transmitted by that port were discarded. You
can view the discard percentage in three ways:
- In — indicates the number of inbound packets that were discarded, as a
percentage of the total load experienced by that port.
- Out — indicates the number of outbound packets that were discarded, as
a percentage of the total load experienced by that port.
- Total — indicate the total number of packets that were discarded, as a
percentage of total load.
• Errors — shows a value for each active port that indicates what percentage of
the total packets received at or transmitted by that port contained an error. You
can view the error percentage in three ways:
- In — indicates the number of inbound packets that contained errors, as a
percentage of the total load experienced by that port.
- Out — indicates the number of outbound packets that contained errors, as
a percentage of the total load experienced by that port.
- Total — indicate the total number of packets that contained errors, as a
percentage of total load.
• Nucast (non-unicast) — shows a value for each active port that indicates what
percentage of the total packets received at or transmitted by that port were
non-unicast (that is, broadcast or multicast) packets. You can view the
non-unicast percentage in three ways:
- In — indicates the number of inbound packets that were broadcast or
multicast packets, as a percentage of the total load experienced by that
port.
- Out — indicates the number of outbound packets that were broadcast or
multicast packets, as a percentage of the total load experienced by that
port.
- Total — indicate the total number of broadcast and multicast packets, as a
percentage of total load.
Ethernet Statistics
For any Ethernet or Fast Ethernet modules installed in your SmartSwitch chassis,
you can view a variety of RMON statistics as a percentage of the total load
experienced by each port. Note that this option will only be available when at
least one Ethernet or Fast Ethernet module is installed in the chassis; when one of
these options is selected, the port displays for any installed FDDI or ATM
modules will display three dashes (---). Ethernet statistical selections available
are: