Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring RMON (Rev. 03)
Remote Monitoring (RMON)
© 2008 Foundry Networks, Inc.
Page 5 of 14
Counter
Description
Oversize
This counter is incremented once for every received packet that
meets all the following conditions:
•
Packet data length is greater than MaxFrameSize.
•
Packet has valid CRC.
Note when the MaxPacketSize (MRU) is set below 1518 using the
command
packet-size-limit
, oversized frames are counted as FCS
errored.
Fragments
This counter is incremented once for every received packet that
meets all the following conditions:
•
The packet’s data length is less than 64 bytes, or the packet is
without SFD (Start Frame Delimiter) and is less than 64 bytes
in length.
•
Collision Event has not been detected.
•
Late Collision Event has not been detected.
•
Packet has invalid CRC.
Jabbers
This counter is incremented once for every received packet that
meets one of the listed conditions:
•
Packet data length is greater than MaxFrameSize (=1518) and
CRC is invalid;
•
Packet length is greater than MaxPacketSize, which is set with
the command
packet-size-limit
, no matter if CRC is valid or
not.
DropEvents
Not supported.
TotalInPkts
This counter is incremented once for every received packet. This
includes rejected and local packets that are not forwarded to the
switching core for transmission. This counter should reflect all
packets received on the line.
In/OutPkts 64
This counter is incremented once for every received and
transmitted packet that is 64 bytes in size. This counter includes
rejected, received, and transmitted packets.
In/OutPkts 65-127
This counter is incremented once for every received and
transmitted packet that is 65 to 127 bytes in size. This counter
includes rejected, received, and transmitted packets.
In/OutPkts 128-255
This counter is incremented once for every received and
transmitted packet that is 128 to 255 bytes in size. This counter
includes rejected, received, and transmitted packets.
In/OutPkts 256-511
This counter is incremented once for every received and
transmitted packet that is 256 to 511 bytes in size. This counter
includes rejected, received, and transmitted packets.
In/OutPkts 512-1023
This counter is incremented once for every received and
transmitted packet that is 512 to 1023 bytes in size. This counter
includes rejected, received, and transmitted packets.