Monitoring Forwarding And Drop Rates On The Egress Queue - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - QUALITY OF SERVICE CONFIGURATION GUIDE 2010-09-22 Configuration Manual

JunosE 11.3.x Quality of Service Configuration Guide
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Monitoring Forwarding and Drop Rates on the Egress Queue

Purpose
Action
314
Table 43: show egress-queue events Output Fields (continued)
Field Name
traffic class
forwarded events
committed drop events
conformed drop events
exceeded drop events
rate period count
Configuring Event Statistics on page 40
show egress-queue events
Display information about forwarding and drop rates on the egress queue. The show
egress-queue rates command is useful even if no statistics profiles are configured. You
can view information about all of the queues even if statistics gathering has not been
enabled.
The minimum rate for the queue is the minimum rate at which a node or queue can
transmit when all other nodes and queues compete for bandwidth. The system determines
the minimum rates by the weight and assured rate configured in a scheduler profile, and
are subject to shaping rate and shared-shaping rate configured.
The maximum rate is the maximum rate at which a node or queue can transmit when
there are no other nodes or queues competing for bandwidth. The system calculates the
maximum rate as the minimum of all shaping rates, shared-shaping rates, and the port
rate from the node or queue down to the port.
For example, if a scheduler column configured over a Fast Ethernet port consists of a
VLAN queue that has been shaped to 5 Mbps over a VLAN node that has been shaped
to 8 Mbps, over an S-VLAN node which is not shaped, then:
The VLAN queue that is shared-shaped to 5 Mbps has a maximum rate of 5 Mbps.
The VLAN node that is shaped to 8 Mbps has a maximum rate of 8 Mbps.
The S-VLAN node which is not shaped has a maximum rate of 100 Mbps.
The Fast Ethernet port with a bandwidth of 100 Mbps has a maximum rate of 100 Mbps.
To display rate statistics only for queues that have queue rate statistics enabled:
Field Description
Name of the traffic class
Number of forwarded rate events
Number of committed drop events
Number of conformed drop events
Number of exceeded drop events
Time frame during which events are counted
(in seconds)
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