User`s guide

D-View 5.1 User’s Guide
165
♦ Data Source – This identifies the source of the data that this etherStats entry is
configured to analyze. This source can be any Ethernet interface on this device.
In order to identify a particular interface, this object is identified by the instance
of the ifIndex object, defined in RFC 1213 and RFC 1573 [4,6], for the desired
interface. For example, if an entry were to receive data from interface #1, this
object would be set to ifIndex.1.
♦ Drop Events – The total number of events in which packets were dropped by
the probe due to lack of resources. Note that this number is not necessarily the
number of packets dropped; it is just the number of times this condition has
been detected.
♦ Octets – The total number of octets of data (including those in bad packets)
received on the network (excluding framing bits but including FCS octets).
♦ Packets – The total number of packets (including bad packets, broadcast
packets, and multicast packets) received.
♦ Broadcast Packets – The total number of good packets received that were
directed to the broadcast address. Note that this does not include multicast
packets.
♦ Multicast Packets – The total number of good packets received that were
directed to a multicast address. Note that this number does not include packets
directed to the broadcast address.
♦ CRCAlign Errors – The total number of packets received that had a length
(excluding framing bits, but including FCS octets) of between 64 and 1518
octets, inclusive, but had either a bad Frame Check Sequence (FCS) with an
integral number of octets (FCS Error) or a bad FCS with a nonintegral number
of octets (Alignment Error).
♦ Undersize Packets – The total number of packets received that were less than
64 octets long (excluding framing bits, but including FCS octets) and were
otherwise well formed.
♦ Oversize Packets – The total number of packets received that were longer than
1518 octets (excluding framing bits, but including FCS octets) and were
otherwise well formed.
♦ Fragments – The total number of packets received that were less than 64 octets
in length (excluding framing bits but including FCS octets) and had either a bad
Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a
bad FCS with a non-integral number of octets (Alignment Error).