6500 CatOS - QoS Statistics

Unanswered Question
Feb 23rd, 2009


When I run the command below I get no statistics. Can anyone tell me if I need to configure the switch to enable this

(enable) sh qos statistics 5/1

Tx port type of port 5/1 : 1p2q2t

Q3T1 statistics are included in Q2T2.

Q# Threshold# Packets Average Packet Peak Packet

dropped (pkts) drop rate (pps) drop rate (pps)

-- ---------- -------------- --------------- ---------------

1 1 0 0 0

1 2 0 0 0

2 1 0 0 0

2 2 0 0 0

Rx port type of port 5/1 : 1p1q4t

Q2T1 statistics are included in Q1T4.

Q# Threshold# Packets Average Packet Peak Packet

dropped (pkts) drop rate (pps) drop rate (pps)

-- ---------- -------------- --------------- ---------------

1 1 0 0 0

1 2 0 0 0

1 3 0 0 0

1 4 0 0 0

I have this problem too.
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Giuseppe Larosa Mon, 02/23/2009 - 06:14

Hello Anthony,

just a basic check

is mls qos enabled on the device ?

it should be something like

set mls qos

Hope to help


agtmcgarry Mon, 02/23/2009 - 07:48

Hi Guiseppe

I have 'set qos enable'

I can see not set mls qos

here is the output from sh mls

(enable) show mls

Total packets switched = 312007053990

Total bytes switched = 248213177932270

Total routes = 527

Total number of Netflow entries = 2

IP statistics flows aging time = 16 seconds

Long-duration flows aging time = 320 seconds

IP statistics flows fast aging time = 0 seconds, packet threshold = 0

IP Current flow mask for NDE is Null flow

Netflow Per Interface disabled

Netflow Data Export version: 7

Netflow Data Export disabled

Netflow Data Export port/host is not configured.

Secondary Netflow Data Export port/host is not configured.

Total packets exported = 0

Total packets exported to secondary = 0

Total NDE collectors configured = 0

Destination Ifindex export is enabled

Source Ifindex export is enabled

Netflow Per Vlan is disabled on vlan(s) 1-2,100-101,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140,


Cannot get netflow per vlan status information of vlan(s) 1002-1005.

Rate limiting is turned off, packets are bridged to router

Load balancing hash is based on source and destination IP addresses and universal id 48e100aa

Per-prefix Stats for ALL FIB entries is Enabled

OPP-Comms-BlockA> (enable) set mls ?

agingtime Set agingtime for MLS cache entry

cef MLS CEF commands

exclude Set MLS excluded protocol ports

flow Set minimum flow mask

nde Configure Netflow Data Export

netflow-entry-create Enable/Disable creation of flows per vlan

netflow-per-interface Enable/Disable Netflow Per Interface

rate Set rate limiting value in pps (0 to disable)

statistics Add protocols to protocol statistics list

verify Set packet parsing verification



Giuseppe Larosa Mon, 02/23/2009 - 08:06

Hello Anthony,

that is fine I probably mixed different commands in my mind (with IOS)

if we look at the text in the show

Q# Threshold# Packets Average Packet Peak Packet

dropped (pkts) drop rate (pps) drop rate (pps)

my understanding is that you will see non zero stats only when some packets will be dropped in any port queue.

Have you overloaded the port with traffic ?

Hope to help


agtmcgarry Tue, 02/24/2009 - 03:00

Hi Giuseppe,

This a live switch so I cant overload the port.

But if I dont see anything on the port stats I'll assume its okay.




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