STRIDE SE-MC2U-SC, Руководство пользователя

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Stride Industrial Ethernet Switches User Manual 2nd Ed. Rev. B
Chapter 3 - Managed Switch Software Monitoring
Network Statistics
The Network Statistics display can be a very useful diagnostic tool for indication of the type
of traffic and packets that the switch is receiving.
RMON Statistics: RMON stands for “Remote Monitoring” statistics and includes the
following:
• Drop Events = The number of packets that have been dropped by the switch because of a lack of
resources and/or large queues.
• Octets = The number of data 8-bit units received into this port.
• Packets = The number of Ethernet packets received into this port.
• Broadcast packets
= The number of broadcast packets received into this port.
• Multicast packets = The number of multicast packets received into this port.
• CRC Align errors = The number of Ethernet packets received into this port with an invalid CRC.
• Undersize packets = The number of Ethernet packets received into this port that were less than 64
bytes in size but contained a valid CRC (64 bytes is the minimum required in Ethernet).
• Oversize packets = The number of Ethernet packets received into this port that were greater than
1536 bytes in size but contained a valid CRC (1536 is the maximum size allowed in Ethernet).
• Fragments
= The number of Ethernet packets received into this port that were less than 64 bytes in
size and did not contain a valid CRC.
• Jabbers = The number of Ethernet packets received into this port that were greater than 1536 bytes
in size and did not contain a valid CRC.
• Collisions = The number of collisions detected on this port.
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