Cisco 500 Series Administration Guide

Quality of Service
Managing QoS Statistics
Cisco 500 Series Stackable Managed Switch Administration Guide 630
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STEP 4 Click Apply. An additional request for statistics is created, and the Running
Configuration file is updated.
Viewing Queues Statistics
The Queues Statistics page displays queue statistics, including statistics of
forwarded and dropped packets, based on interface, queue, and drop
precedence.
To view Queues Statistics:
STEP 1 Click Quality of Service > QoS Statistics > Queues Statistics.
This page displays the following fields:
• Refresh Rate—Select the time period that passes before the interface
Ethernet statistics are refreshed. The available options are:
- No Refresh—Statistics are not refreshed.
- 15 Sec—Statistics are refreshed every 15 seconds.
- 30 Sec—Statistics are refreshed every 30 seconds.
- 60 Sec—Statistics are refreshed every 60 seconds.
• Counter Set—The options are:
- Set 1—Displays the statistics for Set 1 that contains all interfaces and
queues with a high DP (Drop Precedence).
- Set 2—Displays the statistics for Set 2 that contains all interfaces and
queues with a low DP.
• Interface—Queue statistics are displayed for this interface.
• Queue—Packets were forwarded or tail dropped from this queue.
• Drop Precedence—Lowest drop precedence has the lowest probability of
being dropped.
• Total Packet s—Number of packets forwarded or tail dropped.
• Tail Drop Packets—Percentage of packets that were tail dropped.
STEP 2 Click Add.

Cisco 500 Series Specifications

General

Model	Cisco 500 Series
Category	Switch
Mounting	Rack-mountable
Management	Web-based, CLI, SNMP
Ports	24, 48
Port Speed	10/100/1000 Mbps
PoE Support	Available on some models
Switching Capacity	Up to 176 Gbps
MAC Address Table Size	16, 000 entries
Security	ACLs, 802.1X
Quality of Service (QoS)	Yes
Dimensions	Varies by model
Weight	Varies by model
Humidity	10% to 90% non-condensing
Power Supply	Internal
Power Consumption	Varies by model
Jumbo Frame Support	Up to 9216 bytes