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Alignment Errors
: For T1500G-10MPS:
Displays the number of the received packets that have a bad
Frame Check Sequence (FCS) with a non-
integral octet
(Alignment Error) and have a bad FCS with an integral octet
(CRC Error). The length of the packet is betwee
n 64 bytes and
1518 bytes.
For :
Displays the number of the received packets that have a
bad
Frame Check Sequence (FCS)
. The length of the packet is from
64 bytes to maximal bytes of the jumbo frame(usually 10240
bytes).
U
ndersizePkts:
Displays the number of the received packets (excluding error
packets) that are less than 64 bytes long.
Pkts64Octets
:
Displays the number of the received packets (including error
packets) that are 64 bytes long.
Pkts65to127Octets
: Displays
the number of the received packets (including error
packets) that are between 65 and 127 bytes long.
Pkts128to255Octets
:
Displays the number of the received packets (including error
packets) that are between 128 and 255 bytes long.
Pkts256to511Octets
: Di
splays the number of the received packets (including error
packets) that are between 256 and 511 bytes long.
Pkts512to1023Octets
:
Displays the number of the received packets (including error
packets) that are between 512 and 1023 bytes long.
PktsOver1023
Octets:
Displays the number of the received packets (including error
packets) that are over 1023 bytes.
Collisions
:
Displays the number of collisions experienced by a port during
packet transmissions.
5.4 MAC Address
The main function of the switch is forwarding the packets to the correct ports based on the
destination MAC address of the packets. Address Table contains the port-based MAC address
information, which is the base for the switch to forward packets quickly. The entries in the
Address Table can be updated by auto-learning or configured manually. Most the entries are
generated and updated by auto-learning. In the stable networks, the static MAC address
entries can facilitate the switch to reduce broadcast packets and enhance the efficiency of
packets forwarding remarkably. The address filtering feature allows the switch to filter the
undesired packets and forbid its forwarding so as to improve the network security.
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