Status and Statistics
Managing RMON
Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 21
2
•Packets Received—Number of good packets received, including Multicast
and Broadcast packets.
•Broadcast Packets Received—Number of good Broadcast packets
received. This number does not include Multicast packets.
•Multicast Packets Received—Number of good Multicast packets received.
•CRC & Align Errors—Number of CRC and Align errors that have occurred.
•Undersize Packets—Number of undersized packets (less than 64 octets)
received.
•Oversize Packets—Number of oversized packets (over 2000 octets)
received.
•Fragments—Number of fragments (packets with less than 64 octets,
excluding framing bits, but including FCS octets) received.
•Jabbers—Total number received packets that were longer than 1632
octets. This number excludes frame bits, but includes FCS octets that had
either a bad FCS (Frame Check Sequence) with an integral number of octets
(FCS Error) or a bad FCS with a non-integral octet (Alignment Error) number.
A Jabber packet is defined as an Ethernet frame that satisfies the following
criteria:
-Packet data length is greater than MRU.
-Packet has an invalid CRC.
-Received (Rx) Error Event has not been detected.
•Collisions—Number of collisions received. If Jumbo Frames are enabled,
the threshold of Jabber Frames is raised to the maximum size of Jumbo
Frames.
•Frames of 64 Bytes—Number of frames, containing 64 bytes that were
received.
•Frames of 65 to 127 Bytes—Number of frames, containing 65-127 bytes
that were received.
•Frames of 128 to 255 Bytes—Number of frames, containing 128-255 bytes
that were received.
•Frames of 256 to 511 Bytes—Number of frames, containing 256-511 bytes
that were received.