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1424 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
RMON support
A
Statistics (RMON group 1)
Count information on multicast and broadcast packets, total packets sent, undersized and
oversized packets, CRC alignment errors, jabbers, collision, fragments and dropped events is
collected for each port on a Layer 2 Switch or Layer 3 Switch.
No configuration is required to activate collection of statistics for the Layer 2 Switch or Layer 3
Switch. This activity is by default automatically activated at system start-up.
You can view a textual summary of the statistics for all ports by entering the following CLI
command.
Syntax: show rmon statistics [ethernet <port>]
The <port> parameter specifies the port number. You can use the physical port number or the
SNMP port number. The physical port number is based on the product. If you specify a physical
port, specify the <port> variable in one of the following formats:
• PowerConnect B-Series FCX stackable switches – <stack-unit/slotnum/portnum>
The SNMP numbers of the ports start at 1 and increase sequentially. For example, if you are using
a Chassis device and slot 1 contains an 8-port module, the SNMP number of the first port in slot 2
is 9. The physical port number of the same port is 2/1.
This command shows the following information.
TABLE 243 Export configuration and statistics
This line... Displays...
Octets The total number of octets of data received on the network.
This number includes octets in bad packets. This number does not include framing bits
but does include Frame Check Sequence (FCS) octets.
Drop events Indicates an overrun at the port. The port logic could not receive the traffic at full line
rate and had to drop some packets as a result.
The counter indicates the total number of events in which packets were dropped by the
RMON probe due to lack of resources. This number is not necessarily the number of
packets dropped, but is the number of times an overrun condition has been detected.
Packets The total number of packets received.
This number includes bad packets, broadcast packets, and multicast packets.
Broadcast pkts The total number of good packets received that were directed to the broadcast
address.
This number does not include multicast packets.
PowerConnect#show rmon statistics
Ethernet statistics 1 is active, owned by monitor
Interface 1/1 (ifIndex 1) counters
Octets 0
Drop events 0 Packets 0
Broadcast pkts 0 Multicast pkts 0
CRC alignment errors 0 Undersize pkts 0
Oversize pkts 0 Fragments 0
Jabbers 0 Collisions 0
64 octets pkts 0 65 to 127 octets pkts 0
128 to 255 octets pkts 0 256 to 511 octets pkts 0
512 to 1023 octets pkts 0 1024 to 1518 octets pkts 0