Cisco 11503 - CSS Content Services Switch Administration Manual page 255

Chapter 6 Configuring Remote Monitoring (RMON)
Table 6-4
Field
Undersize Packets The total number of received packets that were less than 64
Fragments
Drop Events
Slobbers
Jabbers
OL-5647-02
Field Descriptions for the show rmon Command (continued)
Description
octets long (excluding framing bits, but including FCS
octets) and were otherwise well-formed.
The total number of received packets that were less than 64
octets in length (excluding framing bits but including FCS
octets) and had an FCS Error, a bad Frame Check Sequence
(FCS) with an integral number of octets, or an Alignment
Error, a bad FCS with a non-integral number of octets.
It is normal for fragment statistics to increment because the
CSS counts both runts (which are normal occurrences due
to collisions) and noise hits.
The total number of events in which packets were dropped
by the probe due to lack of resources. This number is not
necessarily the number of packets dropped; it is the number
of times this condition has been detected.
An internal counter. This field is always zero.
The total number of packets received that were longer than
1518 octets (excluding framing bits, but including FCS
octets), and had an FCS Error, a bad Frame Check
Sequence (FCS) with an integral number of octets, or
Alignment Error, a bad FCS with a non-integral number of
octets.
This definition of jabber is different than the definition in
IEEE-802.3, section 8.2.1.5, 10BASE5, and section
10.3.1.4, 10BASE2. These documents define jabber as the
condition where any packet exceeds 20 ms. The allowed
range to detect jabber is between 20 and 150 ms.
Cisco Content Services Switch Administration Guide
Viewing RMON Information
6-29