3Com Switch 8800 Family Configuration Guide

Introduction to Egress Packet Statistics 843
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PACKET STATISTICS CONFIGURATION
Introduction to Egress
Packet Statistics
A card provides two sets of counters for monitoring egress packet statistics of the
card. The monitored objects include ports, VLANs, ports+VLANs, and cards. In
addition to these four types of objects, a traffic class (TC) or a drop precedence
(DP) can also be monitored. When monitoring a card, the counters can monitor all
TCs and all DPs. Egress packet statistics involves the number of unicast packets,
the number of multicast packets, the number of broadcast packets, the number of
bridge-filtered packets and the number of dropped packets in congestion. In
packet statistic, only the number of packets, rather than the number of bytes, is
counted.
n
A card provides only two sets of counters, Counter0 and Counter1, which are
independent of each other.
Configuring Egress
Packet Statistics
Counters
Note that:
■ You cannot configure ports as the objects to be monitored by the egress packet
statistics counters on GV48D, GT24D, GP24D, XP4B and XP4CA cards.
■ After successful configuration, it is necessary to reset the counters to start
counting again.
■ If the monitored objects are ports, you can use the display
current-configuration | include egress command to view the port
configuration.
Tab le 810 Configure egress packet statistics counters
Operation Command Remarks
Enter system view system-view -
Configure the monitored
objects of the egress packet
statistics counters
set egress { counter0 |
counter1 } slot slot-num [
interface interface-type
interface-number ] [ vlan
vlan-id ] [ tc traffic-class ] [ dp
drop-precedence ]
Required
By default, the egress packet
statistics counters of a card
monitor all ports, all VLANs,
all TCs, and all DPs
By default, egress packet
statistics is disabled for cards
Query counter information
display egress { counter0 |
counter1 } slot slot-num [
clear ]
The display command can be
used in any view