Contents
- QoS Monitoring
- Finding Feature Information
- Prerequisites for QoS Monitoring
- Supported Platforms
- Restrictions for QoS Monitoring
- Information about QoS
- Monitoring QoS Overview
- QoS Comparison
- QoS Model on a Cisco Catalyst 3750 Series Switch
- QoS Model on a Cisco Catalyst 3850 Series Switch
- Ingress Features
- Egress Features
- DSCP Transparency Mode
- How to Enable QoS Monitoring
- Verifying QoS Configuration on a Cisco Catalyst 3750 Series Switch
- Verifying QoS Configuration on a Cisco Catalyst 3850 Series Switch
- Enabling DSCP Transparency Mode
- Examples for QoS Monitoring
- Example: Displaying Port Queue Statistics
- Example: Displaying Target Port Type
- Example: Displaying Queue Configuration
- Example: Displaying Port-Shaper Information
- Example: Disabling QoS
- Example: Enabling Trust CoS
- Example: Enabling Trust DSCP
- Example: Enabling QoS on an Interface that has a set Policy
- Example: Enabling No MLS QoS Trust on an Interface
- Example: Enabling Change CoS or DSCP Queue Mapping
- Example: Enabling MLS with DSCP Mutation
- Example: Enabling Aggregate Policing
- Example: Enabling Policing Remark
- Example: Enabling Queue-Limit Configuration
- Example: Enabling Queue-Buffer
- Example: Enabling Bandwidth
- Example: Enabling Priority
- Example: Enabling QoS Shaper
- Example: Hierarchical Modular QoS
- Additional References for QoS Monitoring
- Feature Information for QoS Monitoring
QoS
Monitoring
The QoS Monitoring feature describes the Quality of Service (QoS) through sample configuration examples. This document is for networking professionals who are responsible for the design, implementation, or administration of a network that includes a standalone Cisco Catalyst 3850 Series or a Cisco Catalyst 3850 Series Switch-stack, referred to as the switch-stack.
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for QoS Monitoring
We recommend that you have basic knowledge about the concepts and terminology of Multi-Layer Switching (MLS) and Modular QoS CLI (MQC).
 Note | The information in this document was created from devices configured in a lab environment. All devices used in this document had a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of the CLIs used in the configuration. |
Information about QoS
Monitoring QoS Overview
QoS refers to the ability of a network to provide better service to various network traffic over different technologies such as, Asynchronous Transfer Mode (ATM), Ethernet and 802.1 networks, Frame Relay, IP-routed networks, and SONET.
QoS is a collection of technologies that allows applications to request and receive predictable service levels in terms of data throughput capacity (bandwidth), latency variations (jitter), and delay.
QoS Comparison
QoS configuration on Cisco Catalyst 3850 Series Switches uses the MQC (universal QoS configuration model) configuration instead of the MLS QoS (platform-dependent QoS) used in the Cisco Catalyst 3560 Series Switches and Cisco Catalyst 3750 Series Switches.
The following table lists the differences between the Cisco Catalyst 3750 Series Switches MLS QoS and Cisco Catalyst 3850 Series Switches MQC QoS:
|
Switch Type |
Cisco Catalyst 3750 Series Switch |
Cisco Catalyst 3850 Series Switch |
|
Basic Structure |
MLS |
MQC |
|
QoS default |
Disabled |
Enabled |
|
Global Configuration |
||
|
Interface Configuration |
Supports MLS QoS configuration and some of MQC CLI at the ingress interface |
Attaches the policy to the interface. |
|
Port trust default |
Disabled |
Enabled |
|
Port Ingress |
||
|
Port Egress |
Queuing |
|
|
Switch Virtual Interface (SVI) Ingress |
||
|
SVI Egress |
None |
|
|
Trust Configuration |
Must be applied to preserve Layer 2 and Layer 3 QoS marking |
All packets are trusted (Layer 2 and Layer 3 QoS marking is preserved) by default, unless changed with an application of a specific policy map on the ingress or egress interface |
Ingress Features
The following table compares the various ingress features available on Cisco Catalyst 3750 Series and Cisco 3850 Series Switches:
|
Feature |
Cisco Catalyst 3750 Series Switch |
Cisco Catalyst 3850 Series Switch |
|
Classification |
Class-map matches: |
Class-map matches: Supports only match-any. |
|
Marking (unconditional set) |
||
|
Marking (conditional Marking) |
DSCP mutation |
|
|
Policing |
One-rate, two-color (1r2c) |
1r2c and two-rate, three-color (2r3c) |
|
Policing markdown |
Policing exceeds markdown. Only supports DSCP. |
Policing exceeds and violates markdown. The markdown is supported through a table-map. |
|
Aggregate Policing |
Supports aggregate policing |
Aggregate policing (one type of Hierarchal QoS [HQoS]) |
|
Ingress Queuing |
Supports only on 3750 but does not support on 3750x. |
Does not support. |
|
Hierarchical QoS (HQoS) |
VLAN based HQoS only |
Port-based aggregate policing and per-VLAN. |
Egress Features
The following table compares the various egress features available on Cisco Catalyst 3750 Series and Cisco Catalyst 3850 Series Switches:
|
Feature |
Cisco Catalyst 3750 Series Switch |
Cisco Catalyst 3850 Series Switch |
|
Classification support for none queuing action |
Does not support |
|
|
Classification support for queuing action |
CoS and DSCP |
|
|
Marking |
Does not support |
|
|
Policing |
Does not support |
1r2c, 2r3c with exceed or violate markdown through table-map |
|
Maximum number of queues and queue types |
1-priority queue, 3-standard queues, 3-thresholds per standard queue (1P3Q3T) [4 queues] Expedite queue is the priority queue |
2-priority queue, 6-standard queue, 3-threshold per standard queue (2P6Q3T) [up to 8 queues] |
|
Egress Queuing |
||
|
HQoS |
Does not support |
DSCP Transparency Mode
The Cisco Catalyst 3850 Series Switch supports DSCP transparency. The Cisco Catalyst 3850 Series Switch uses the DSCP field of a packet at egress. By default, DSCP transparency is disabled. The Cisco Catalyst 3850 Series Switch modifies the DSCP field in an incoming packet, and the DSCP field in the outgoing packet is based on the QoS configuration, including the port trust setting, policing and marking, and the x-to-DSCP AVV table.
If DSCP transparency is enabled by using the no qos rewrite ip dscp command, the Cisco Catalyst 3850 Series Switch does not modify the DSCP field in the incoming packet, and the DSCP field in the outgoing packet is the same as that in the incoming packet.
Regardless of the DSCP transparency configuration, the Cisco Catalyst 3850 Series Switch modifies the internal QoS label of the packet, based on the configured QoS policy. The Cisco Catalyst 3850 Series Switch also uses the internal QoS label to select an egress queue and threshold.
How to Enable QoS Monitoring
Verifying QoS Configuration on a Cisco Catalyst 3750 Series Switch
Verifying QoS Configuration on a Cisco Catalyst 3850 Series Switch
Enabling DSCP Transparency Mode
| Command or Action | Purpose | |
|---|---|---|
| Step 1 | enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 | configure terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 | qos rewrite ip dscp
Example: Device(config)# qos rewrite ip dscp |
Enables QoS globally. |
| Step 4 | no qos rewrite ip dscp
Example: Device(config)# no qos rewrite ip dscp | Enables DSCP transparency. |
| Step 5 | end
Example: Device(config)# end |
Exits the global configuration and returns to privileged EXEC mode. |
Examples for QoS Monitoring
Example: Displaying Port Queue Statistics
 Caution | The show commands used in this document are for troubleshooting purposes. Use the commands with caution. The show platform commands are typically reserved for Cisco TAC personnel and are subject to change without notice. |
The following sample output from the show platform hardware fed switch 1 qos queue statistics interface gigabitethernet command displays the port queue statistics:
Device# show platform hardware fed switch 1 qos queue stats interface gigabitEthernet 1/0/1
DATA Port:21 Enqueue Counters
-------------------------------
Queue Buffers Enqueue-TH0 Enqueue-TH1 Enqueue-TH2
----- ------- ----------- ----------- -----------
0 0 0 0 0
1 0 0 0 194328
2 0 0 0 0
3 0 0 0 0
4 0 0 0 0
5 0 0 0 0
6 0 0 0 0
7 0 0 0 0
DATA Port:21 Drop Counters
-------------------------------
Queue Drop-TH0 Drop-TH1 Drop-TH2 SBufDrop QebDrop
----- ----------- ----------- ----------- ----------- -----------
0 0 0 0 0 0
1 0 0 0 0 0
2 0 0 0 0 0
3 0 0 0 0 0
4 0 0 0 0 0
5 0 0 0 0 0
6 0 0 0 0 0
7 0 0 0 0 0
AQM Broadcast Early WTD COUNTERS(In terms of Bytes)
--------------------------------------------------
PORT TYPE ENQUEUE DROP
--------------------------------------------------
UPLINK PORT-0 N/A 0
UPLINK PORT-1 N/A 0
UPLINK PORT-2 N/A 0
UPLINK PORT-3 N/A 0
NETWORK PORTS 0 0
RCP PORTS 0 0
CPU PORT 0 0
Note | The queuing statistics are in bytes. |
Example: Displaying Target Port Type
Caution | The show platform commands are typically reserved for Cisco TAC personnel and are subject to change without notice. |
The following sample output from the show platform software fed switch 1 qos policy target status command displays the target port type:
Device# show platform software fed switch 1 qos policy target status TCG status summary: Loc Interface IIF-ID Dir State:(cfg,opr) Policy --- --------------------- ---------------- --- --------------- -------------------- L:0 GigabitEthernet1/0/1 0x00000000000008 OUT VALID,SET_INHW police
Example: Displaying Queue Configuration
Caution | The show platform commands are typically reserved for Cisco TAC personnel and are subject to change without notice. |
Note | The show platform hardware fed switch 1 qos queue configuration interface command displays the differences in buffers and threshold settings. The values may not be representative of customer scenarios. |
The following sample output from the show platform hardware fed switch 1 qos queue configuration interface command displays the queue configuration information:
Device# show platform hardware fed switch 1 qos queue configuration interface gigabitEthernet1/0/1 DATA Port:21 GPN:1 AFD:Disabled QoSMap:0 HW Queues: 168 - 175 DrainFast:Disabled PortSoftStart:1 - 1080 ---------------------------------------------------------- DTS Hardmax Softmax PortSMin GlblSMin PortStEnd --- -------- -------- -------- --------- --------- 0 1 5 120 6 480 6 320 0 0 3 1440 1 1 4 0 7 720 3 480 2 180 3 1440 2 1 4 0 5 0 5 0 0 0 3 1440 3 1 4 0 5 0 5 0 0 0 3 1440 4 1 4 0 5 0 5 0 0 0 3 1440 5 1 4 0 5 0 5 0 0 0 3 1440 6 1 4 0 5 0 5 0 0 0 3 1440 7 1 4 0 5 0 5 0 0 0 3 1440 Priority Shaped/shared weight shaping_step -------- ------------ ------ ------------ 0 0 Shared 50 0 1 0 Shared 75 0 2 0 Shared 10000 24 3 0 Shared 10000 255 4 0 Shared 10000 96 5 0 Shared 10000 255 6 0 Shared 10000 0 7 0 Shared 10000 0 Weight0 Max_Th0 Min_Th0 Weigth1 Max_Th1 Min_Th1 Weight2 Max_Th2 Min_Th2 ------- ------- ------ ------ ------ ------ ------ ------ ------ 0 0 478 0 0 534 0 0 600 0 1 0 573 0 0 641 0 0 720 0 2 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0
Example: Displaying Port-Shaper Information
Use the following commands to display the port-shaper information:
Device# show running-config class-map class_dscp
class-map match-any class_dscp
match dscp af11
Device# show running-config class-map dscp2
class-map match-any dscp2
match dscp af12
Device# show running-config policy-map child
policy-map child
class class_dscp
bandwidth percent 25
class dscp2
bandwidth percent 25
Device# show running-config policy-map port_shaper
policy-map port_shaper
class class-default
shape average percent 40
service-policy child
Device# show running-config interface gigabitEthernet1/0/1
interface GigabitEthernet1/0/1
service-policy output port_shaper
Device# show policy-map interface gigbitEthernet1/0/1
GigabitEthernet1/0/1
Service-policy output: port_shaper
Class-map: class-default (match-any)
10 packets
Match: any
Queueing
(total drops) 0
(bytes output) 350
shape (average) cir 400000000, bc 4000000, be 4000000
target shape rate 400000000
Service-policy : child
Class-map: class_dscp (match-any)
0 packets
Match: dscp af11 (10)
0 packets, 0 bytes
5 minute rate 0 bps
Queueing
(total drops) 0
(bytes output) 0
bandwidth 25% (100000 kbps)
Class-map: dscp2 (match-any)
0 packets
Match: dscp af12 (12)
0 packets, 0 bytes
5 minute rate 0 bps
Queueing
(total drops) 0
(bytes output) 0
bandwidth 25% (100000 kbps)
Class-map: class-default (match-any)
10 packets
Match: any
(total drops) 0
(bytes output) 350
Example: Disabling QoS
Disabling QoS-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
| No MLS QoS | Two queues: |
No policy is installed on an egress interface. Control packets in queue 0 and data packets in queue 1 |
Device# show mls qos QoS is disabled QoS ip packet dscp rewrite is enabled Device# show mls qos interface gigabitEthernet 1/0/1 statistics output queues enqueued: queue: threshold1 threshold2 threshold3 ----------------------------------------------- queue 0: 4 0 0 queue 1: 0 0 0 <- control queue 2: 0 0 0 queue 3: 0 0 0 <- data output queues dropped: queue: threshold1 threshold2 threshold3 ----------------------------------------------- queue 0: 0 0 0 queue 1: 0 0 0 <- control queue 2: 0 0 0 queue 3: 0 0 0 <- data Policer: Inprofile: 0 OutofProfile:
Caution | The show platform commands are typically reserved for Cisco TAC personnel and are subject to change without notice. |
Device# show running-config interface gigabitEthernet1/0/1 Device# show platform hardware fed switch 1 qos queue stats interface gigabitEthernet 1/0/1 DATA Port:21 GPN:1 AFD:Disabled QoSMap:0 HW Queues: 168 - 175 DrainFast:Disabled PortSoftStart:1 - 600 ---------------------------------------------------------- DTS Hardmax Softmax PortSMin GlblSMin PortStEnd --- -------- -------- -------- --------- --------- 0 1 5 120 6 480 0 0 0 0 0 800 <- control 1 1 4 0 7 720 2 480 2 180 2 800 <- data 2 1 4 0 5 0 0 0 0 0 0 800 3 1 4 0 5 0 0 0 0 0 0 800 4 1 4 0 5 0 0 0 0 0 0 800 5 1 4 0 5 0 0 0 0 0 0 800 6 1 4 0 5 0 0 0 0 0 0 800 7 1 4 0 5 0 0 0 0 0 0 800 Priority Shaped/shared weight shaping_step -------- ------------ ------ ------------ 0 0 Shared 50 0 1 0 Shared 75 0 2 0 Shared 10000 179 3 0 Shared 10000 0 4 0 Shared 10000 0 5 0 Shared 10000 0 6 0 Shared 10000 192 7 0 Shared 10000 0 Weight0 Max_Th0 Min_Th0 Weigth1 Max_Th1 Min_Th1 Weight2 Max_Th2 Min_Th2 ------- ------- ------ ------ ------ ------ ------ ------ ------ 0 0 478 0 0 534 0 0 600 0 1 0 573 0 0 641 0 0 720 0 2 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0
Example: Enabling Trust CoS
Enabling Trust CoS-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
| MLS QoS | MLS QoS trusts CoS interface (based on the default CoS-mapping to the queue-set 1) |
Egress queuing policy based on CoS (ingress needs configuration trust CoS) |
Global config: Device(config)# mls qos Interface config: Device# interface GigabitEthernet1/0/1 Device(config-if)# mls qos trust cos Device# show mls qos QoS is enabled QoS ip packet dscp rewrite is enabled Device# show mls qos interface gigabitEthernet1/0/1 GigabitEthernet1/0/1 trust state: trust cos trust mode: trust cos trust enabled flag: ena COS override: dis default COS: 0 DSCP Mutation Map: Default DSCP Mutation Map Trust device: none qos mode: port-based Device# show mls qos maps cos-output-q Cos-outputq-threshold map: cos: 0 1 2 3 4 6 7 ------------------------------------------------------------ queue-threshold: 2-1 2-1 3-1 3-1 4-1 1-1 4-1 4-1 Note: cos value 0 maps to 2-1 [queue-set1 : queue2 threshold 1]
Ingress: apply policy-map trust-cos
Egress: create class based on cos and have queuing action for each class
Interface configuration:
Device(config)# interface GigabiEthernet1/0/1
Device(config-if)# service-policy input <policy-name>
Ingress policy:
Device# show running-config policy-map trust-cos
class class-default
set cos cos table default
Device# show table-map default
Table Map default
default copy
Egress policy:
Device# show running-config policy-map example2
class cos5
bandwidth percent 15
class cos0_1
bandwidth percent 25
class cos2_3
bandwidth percent 40
class cos4_6_7
bandwidth percent 20
Device# show running-config class-map cos5
class-map match-any cos5
match cos 5
Device# show running-config class-map cos0_1
class-map match-any cos0_1
match cos 0
match cos 1
Device# show running-config class-map cos2_3
class-map match-any cos2_3
match cos 2
match cos 3
Device# show running-config class-map cos4_6_7
class-map match-any cos4_6_7
match cos 4
match cos 6
match cos 7
Example: Enabling Trust DSCP
Enabling Trust DSCP-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS |
MLS QoS trust Differentiated Services Code Point (DSCP) interface (based on the default DSCP-mapping to the queue-set 1) |
Device# configure terminal Device(config)# mls qos Device(config-if)# interface GigabitEthernet1/0/1 Device(config-if)# mls qos trust dscp Device# show mls qos interface gigabitEthernet 1/0/1 GigabitEthernet1/0/1 trust state: trust dscp trust mode: trust dscp trust enabled flag: ena COS override: dis default COS: 0 DSCP Mutation Map: Default DSCP Mutation Map Trust device: none qos mode: port-based Device# show mls qos maps dscp-output-q Dscp-outputq-threshold map: d1 :d2 0 1 2 3 4 5 6 7 8 9 --------------------------------------------------------------- 0 : 02-01 02-01 02-01 02-01 02-01 02-01 02-01 02-01 02-01 02-01 1 : 02-01 02-01 02-01 02-01 02-01 02-01 03-01 03-01 03-01 03-01 2 : 03-01 03-01 03-01 03-01 03-01 03-01 03-01 03-01 03-01 03-01 3 : 03-01 03-01 04-01 04-01 04-01 04-01 04-01 04-01 04-01 04-01 4 : 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01 04-01 04-01 5 : 04-01 04-01 04-01 04-01 04-01 04-01 04-01 04-01 04-01 04-01 6 : 04-01 04-01 04-01 04-01
Note | Ingress: Default trust DSCP, no policy needed. Egress: Use DSCP as classification and add queuing action based on customer need. |
One Sample config:
Policy-map:
Device# show running-config policy-map dscp-shape
class dscp56
shape average percent 10
class dscp48
shape average percent 11
class dscp40
shape average percent 12
class dscp32
shape average percent 13
Class-map:
Device# show running-config class-map dscp56
class-map match-any dscp56
match dscp cs7
Device# show running-config class-map dscp48
class-map match-any dscp48
match dscp cs6
Device# show running-config class-map dscp40
class-map match-any dscp40
match dscp cs5
Device# show running-config class-map dscp32
class-map match-any dscp32
match dscp cs4
Example: Enabling QoS on an Interface that has a set Policy
Enabling QoS on an Interface that has a set Policy-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS |
Interface input policy with set action to mark the CoS or DSCP value or both. (Marked value will be used for egress mapping) |
Need explicit egress policy to do queuing mapping. |
Device# show running-config class-map dscp-1 class-map match-any dscp-1 match ip dscp 1 Device# show running-config policy-map set-dscp-63 class dscp-1 set dscp 63 Device# show running-config interface fastEthernet7/0/2 interface FastEthernet7/0/2 mls qos trust dscp service-policy input set-dscp-63 Device# show policy-map int fastEthernet7/0/2 FastEthernet7/0/2 Service-policy input: set-dscp-63 Class-map: dscp-1 (match-any) 0 packets, 0 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: ip dscp 1 Class-map: class-default (match-any) 0 packets, 0 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: any 0 packets, 0 bytes 5 minute rate 0 bps Note: Packets come in interface fa7/0/2, dscp1 will be marked to dscp63 which mapping based on the existing mapping table, other pkts will retain original dscp value mapping accordingly
Note | Input will be the same as Cisco Catalyst 3750 configuration. For the egress interface, queuing action is added under class dscp-63. |
Device# show running-config class-map dscp-1
class-map match-any dscp-1
match ip dscp 1
Device# show running-config policy-map set-dscp-63
policy-map set-dscp-63
class dscp-1
set dscp 63
Device# show running-config interface gigabitEthernet1/0/2
interface GigabitEthernet1/0/2
service-policy input set-dscp-63
Device# show policy-map interface gigabitEthernet1/0/2
GigabitEthernet1/0/2
Service-policy input: set-dscp-63
Class-map: dscp-1 (match-any)
0 packets
Match: ip dscp 1
0 packets, 0 bytes
5 minute rate 0 bps
QoS Set
dscp 63
Class-map: class-default (match-any)
0 packets
Match: any
Example: Enabling No MLS QoS Trust on an Interface
Enabling No MLS QoS Trust on an Interface-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS |
Global: Device(config)# mls qos Interface: interface GigabitEthernet2/0/45 !
Input policy:
Device# show running-config policy-map example5-input
class class-default
set dscp default
Output policy:
Device# show running-config policy-map example5-output
class dscp0
shape average percent 10 <- queuing action based on customer need
Attach to the ingress port:
Device# show running-config interface gigabitEthernet1/0/1
interface GigabitEthernet1/0/1
service-policy input example5-input
Attach to the egress port:
Device# show running-config interface gigabitEthernet1/0/2
interface GigabitEthernet1/0/2
service-policy output example5-output
Example: Enabling Change CoS or DSCP Queue Mapping
Enabling Change CoS or DSCP Queue Mapping-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
||
|
MLS QoS trust CoS, MLS QoS trust DSCP, Input policy with set action to mark the DSCP value, and No MLS QoS trust config [both CoS/DSCP will be set zero] will use the new mapping table. (CoS 4 and 5 will be mapped to queue 1 threshold 3)
|
Egress explicit classification with queuing action. |
Device(config)# mls qos srr-queue mapping configuration Device(config)# mls qos srr-queue output [CoS-map] queue [1] threshold [3] [4 5] Before Enabling Change CoS or DSCP Queue Mapping: Device# show mls qos maps cos-output-q Cos-outputq-threshold map: cos: 0 1 2 3 4 5 6 7 ------------------------------------------------ queue-threshold: 2-1 2-1 3-1 3-1 4-1 1-1 4-1 4-1 User configuration mapping: Device(config)# mls qos srr-queue output cos-map queue 3 threshold 3 0 New mapping table after configuration: Device# show mls qos maps cos-output-q Cos-outputq-threshold map: cos: 0 1 2 3 4 5 6 7 ------------------------------------------------ queue-threshold: 3-3 2-1 3-1 3-1 4-1 1-1 4-1 4-1
Input : need apply trust-cos policy:
Device# show running-config policy-map trust-cos
class class-default
set cos cos table default
Device# show table-map default
Table Map default
default copy
Egress policy:
Before changing mapping:
Sample config:
Device# show running-config policy-map example2
class cos5
bandwidth percent 15
class cos0_1
bandwidth percent 25
class cos2_3
bandwidth percent 40
class cos4_6_7
bandwidth percent 20
Device# show running-config class-map cos5
class-map match-any cos5
match cos 5
Device# show running-config class-map cos0_1
class-map match-any cos0_1
match cos 0
match cos 1
Device# show running-config class-map cos2_3
class-map match-any cos2_3
match cos 2
match cos 3
Device# show running-config class-map cos4_6_7
!
class-map match-any cos4_6_7
match cos 4
match cos 6
match cos 7
After mapping changing, corresponding sample configuration:
Device# show running-config policy-map example6
class cos5
bandwidth percent 15
class cos1
bandwidth percent 25
class cos0_2_3
bandwidth percent 40
class cos4_6_7
bandwidth percent 20
Device# show class-map cos5
Class Map match-any cos5 (id 25)
Match cos 5
Device# show running-config class-map cos1
class-map match-any cos1
match cos 1
Device# show running-config class-map cos0_2_3
class-map match-any cos0_2_3
match cos 0
match cos 2
match cos 3
Device# show running-config class-map cos4_6_7
class-map match-any cos4_6_7
match cos 4
match cos 6
match cos 7
Device# show policy-map interface gigabitEthernet1/0/1
Example: Enabling MLS with DSCP Mutation
Enabling MLS with DSCP Mutation-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS DSCP Mutation |
Interface input policy with table-map mapping different DSCP |
Device(config)# mls qos map dscp-mutation map-name input-dscp1 [ input-dscp2 [ input-dscp3 [ i nput-dscp4 [ input-dscp5 [input-dscp6 [input-dscp7 [input-dscp8] ] ] ] ] ] ] to output-dscp Device(config)# mls qos map dscp-mutation dscp-mutation 0 1 to 63 Device(config)# mls qos map dscp-mutation dscp-mutation 2 3 to 62 Device# show mls qos maps dscp-mutation Dscp-dscp mutation map: dscp-mutation: d1 : d2 0 1 2 3 4 5 6 7 8 9 --------------------------------------- 0 : 63 63 62 62 04 05 06 07 08 09 1 : 10 11 12 13 14 15 16 17 18 19 2 : 20 21 22 23 24 25 26 27 28 29 3 : 30 31 32 33 34 35 36 37 38 39 4 : 40 41 42 43 44 45 46 47 48 49 5 : 50 51 52 53 54 55 56 57 58 59 6 : 60 61 62 63 Dscp-dscp mutation map: Default DSCP Mutation Map: d1 : d2 0 1 2 3 4 5 6 7 8 9 --------------------------------------- 0 : 00 01 02 03 04 05 06 07 08 09 1 : 10 11 12 13 14 15 16 17 18 19 2 : 20 21 22 23 24 25 26 27 28 29 3 : 30 31 32 33 34 35 36 37 38 39 4 : 40 41 42 43 44 45 46 47 48 49 5 : 50 51 52 53 54 55 56 57 58 59 6 : 60 61 62 63 Interface config: interface FastEthernet7/0/3 description trust dscp mls qos trust dscp mls qos dscp-mutation dscp-mutation Device# show mls qos interface fastEthernet7/0/3 FastEthernet7/0/3 trust state: trust dscp trust mode: trust dscp trust enabled flag: ena COS override: dis default COS: 0 DSCP Mutation Map: dscp-mutation Trust device: none qos mode: port-based Interface using default dscp-table: Device# show mls qos interface gigabitEthernet3/0/1 GigabitEthernet3/0/1 trust state: not trusted trust mode: not trusted trust enabled flag: ena COS override: dis default COS: 0 DSCP Mutation Map: Default DSCP Mutation Map Trust device: none qos mode: port-based
Note | d1 and d2 are combined to form the 1st and 2nd digit in the original DSCP value and that they intersect at the marked down DSCP value. |
Note |
|
Ingress: Device# show table-map dscp-2-dscp Table Map dscp-2-dscp from 0 to 63 from 1 to 63 from 2 to 62 from 3 to 62 default copy Device# show running-config policy-map example7-input class class-default set dscp dscp table dscp-2-dscp Egress: Device# show running-config policy-map example7-output class dscp63 shape average percent 20 [queuing action based on the user need] class dscp62 shape average percent 30 [queuing action based on user need]
Example: Enabling Aggregate Policing
Enabling Aggregate Policing-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS aggregate policing. (All classes using the aggregate-policing will share the policing rate.) |
Needs interface level configuration. |
Cisco Catalyst 3850 Series Switch does not support named aggregate policers. However, aggregate policing can be achieved using a hierarchical policy as described in the example described below. |
|
mls QoS aggregate-policeragg_traffic 8000 8000 exceed-action drop |
Interface having policy which has agg_traffic as aggregate policer name. |
Global:
mls qos aggregate-policer agg_traffic 8000 8000 exceed-action drop
Access-list:
access-list 1 permit 192.168.0.0 0.0.0.255
access-list 2 permit 10.0.0.0 0.0.0.255
Class-map:
class-map match-all agg1
match access-group 1
class-map match-all agg2
match access-group 2
Policy-map:
policy-map agg_policer
class agg1
set dscp 40
police aggregate agg_traffic
class agg2
set dscp 55
police aggregate agg_traffic
Note: class agg1 and agg2 will share the same policing rate
Device# show mls qos aggregate-policer
aggregate-policer agg_traffic 8000 8000 exceed-action drop
Device# show mls qos interface gigabitEthernet 1/0/2 policers
GigabitEthernet1/0/2
policymap=agg_policer
type=Shared, id=1 name=agg_traffic
Device# show mls qos interface gigabitEthernet 1/0/2 statistics
GigabitEthernet1/0/2 (All statistics are in packets)
dscp: incoming
-------------------------------
0 - 4 : 5 0 0 0 0
5 - 9 : 0 0 0 0 0
10 - 14 : 0 0 0 0 0
15 - 19 : 0 0 0 0 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 0 0 0 0
30 - 34 : 0 0 0 0 0
35 - 39 : 0 0 0 0 0
40 - 44 : 0 0 0 0 0
45 - 49 : 0 0 0 91 0
50 - 54 : 0 0 0 0 0
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
dscp: outgoing
-------------------------------
0 - 4 : 5 0 0 0 0
5 - 9 : 0 0 0 0 0
10 - 14 : 0 0 0 0 0
15 - 19 : 0 0 0 0 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 0 0 0 0
30 - 34 : 0 0 0 0 0
35 - 39 : 0 0 0 0 0
40 - 44 : 0 0 0 0 0
45 - 49 : 0 0 0 91 0
50 - 54 : 0 0 0 0 0
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
cos: incoming
-------------------------------
0 - 4 : 226 0 0 0 0
5 - 7 : 0 0 0
cos: outgoing
-------------------------------
0 - 4 : 8 0 0 0 0
5 - 7 : 0 91 127
output queues enqueued:
queue: threshold1 threshold2 threshold3
-----------------------------------------------
queue 0: 2 0 0
queue 1: 0 6 218
queue 2: 0 0 0
queue 3: 0 0 0
output queues dropped:
queue: threshold1 threshold2 threshold3
-----------------------------------------------
queue 0: 0 0 0
queue 1: 0 0 0
queue 2: 0 0 0
queue 3: 0 0 0
Policer: Inprofile: 11 OutofProfile: 0
Device# show running-config class-map dscp1
class-map match-any dscp1
match dscp af11
Device# show running-config class-map dscp2
class-map match-any dscp2
match dscp af12
Device# show running-config policy-map child
policy-map child
class dscp1
set cos 5
class dscp2
set cos 7
class class-default
set precedence 6
Device# show running-config class-map vlan18
class-map match-any vlan18
match vlan 18
Device# show running-config policy-map agg_policing
policy-map agg_policing
class vlan18
police rate percent 50
service-policy child
class class-default
Device# show running-config interface gigabiEthernet1/0/1
interface GigabitEthernet1/0/1
service-policy input agg_policing
Device# show policy-map interface gigabitEthernet1/0/1
GigabitEthernet1/0/1
Service-policy input: agg_policing
Class-map: vlan18 (match-any)
0 packets
Match: vlan 18
0 packets, 0 bytes
5 minute rate 0 bps
police:
rate 50 %
rate 500000000 bps, burst 15625000 bytes
conformed 0 bytes; actions:
transmit
exceeded 0 bytes; actions:
drop
conformed 0000 bps, exceeded 0000 bps
Service-policy : child
Class-map: dscp1 (match-any)
0 packets
Match: dscp af11 (10)
0 packets, 0 bytes
5 minute rate 0 bps
QoS Set
cos 5
Class-map: dscp2 (match-any)
0 packets
Match: dscp af12 (12)
0 packets, 0 bytes
5 minute rate 0 bps
QoS Set
cos 7
Example: Enabling Policing Remark
Enabling Policing Remark-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
||
|
MLS QoS map policed-DSCP x-to-y |
If the interface has a policing policy, exceed is transmit, the global CLI will take effect (input only). |
One table-map for exceed and one for violate action of policing, input, and output.
|
Default policed-dscp map: Device# show mls qos map policed-dscp Policed-dscp map: d1 : d2 0 1 2 3 4 5 6 7 8 9 --------------------------------------- 0 : 00 01 02 03 04 05 06 07 08 09 1 : 10 11 12 13 14 15 16 17 18 19 2 : 20 21 22 23 24 25 26 27 28 29 3 : 30 31 32 33 34 35 36 37 38 39 4 : 40 41 42 43 44 45 46 47 48 49 5 : 50 51 52 53 54 55 56 57 58 59 6 : 60 61 62 63 User define policed-dscp map: Device(config)# mls qos map policed-dscp dscp1 [ dscp2 [ dscp3 [ dscp4 [ dscp5 [ dscp6 [ dscp7 [dscp8] ] ] ] ] ] ] to policed-dscp Device(config)# mls qos map policed-dscp 0 10 18 24 46 to 8 Device(config)# exit Device# show mls qos map policed-dscp Policed-dscp map: d1 : d2 0 1 2 3 4 5 6 7 8 9 --------------------------------------- 0 : 08 01 02 03 04 05 06 07 08 09 1 : 08 11 12 13 14 15 16 17 08 19 2 : 20 21 22 23 08 25 26 27 28 29 3 : 30 31 32 33 34 35 36 37 38 39 4 : 40 41 42 43 44 45 08 47 48 49 5 : 50 51 52 53 54 55 56 57 58 59 6 : 60 61 62 63 Policy config: class-map match-all policed-dscp match access-group 2 class policed-dscp police 8000 8000 exceed-action policed-dscp-transmit Attach the above policy at ingress: Note : Remark table can be used by policing and interface policing as long as exceed action is transmit
Note | d1 and d2 are combined to form the 1st and 2nd digit in the original DSCP value and that they intersect at the marked down DSCP value. |
Device(config)# table-map policed-dscp
Device(config-tablemap)# map from 0 to 8
Device(config-tablemap)# map from 10 to 8
Device(config-tablemap)# map from 18 to 8
Device(config-tablemap)# map from 24 to 8
Device(config-tablemap)# map from 46 to 8
Device(config-tablemap)# end
Device# show table-map policed-dscp
Table Map policed-dscp
from 0 to 8
from 10 to 8
from 18 to 8
from 24 to 8
from 46 to 8
default copy
Device# show policy-map policed-dscp
Policy Map policed-dscp
Class class-default
police cir percent 10
conform-action transmit
exceed-action set-dscp-transmit dscp table policed-dscp
Note | Cisco Catalyst 3850 Series Switch does not support remark statistics |
Example: Enabling Queue-Limit Configuration
Enabling Queue Limit Configuration-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS queue-set output 1 threshold 1100 100 50 200 (queue-limit) [1 ->queue-set 1, 1->first queue, 100 ->threshold 1, 100 ->threshold 2, 50 -> reserved buffer, 200 -> max threshold, |
Interface configuration queue-set (Default is queue-set 1) |
Egress queuing policy with queuing action and queue-limit configuration. |
Global config:
mls qos srr-queue output cos-map queue queue-id { cos1...cos8 | threshold threshold-id cos1...cos8 }
mls qos srr-queue output cos-map queue 2 threshold 1 2
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos srr-queue output cos-map queue 2 threshold 3 6 7
Device> show mls qos interface [interface-id] [buffers | queueing | statistics] [ | {begin | exclude | include} expression]
Device> show mls qos interface gigabitethernet1/0/2 statistics
GigabitEthernet1/0/2
dscp: incoming
-------------------------------
0 - 4 : 4213 0 0 0 0
5 - 9 : 0 0 0 0 0
10 - 14 : 0 0 0 0 0
15 - 19 : 0 0 0 0 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 0 0 0 0
30 - 34 : 0 0 0 0 0
35 - 39 : 0 0 0 0 0
40 - 44 : 0 0 0 0 0
45 - 49 : 0 0 0 6 0
50 - 54 : 0 0 0 0 0
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
dscp: outgoing
-------------------------------
0 - 4 : 363949 0 0 0 0
5 - 9 : 0 0 0 0 0
10 - 14 : 0 0 0 0 0
15 - 19 : 0 0 0 0 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 0 0 0 0
30 - 34 : 0 0 0 0 0
35 - 39 : 0 0 0 0 0
40 - 44 : 0 0 0 0 0
45 - 49 : 0 0 0 0 0
50 - 54 : 0 0 0 0 0
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
cos: incoming
-------------------------------
0 - 4 : 132067 0 0 0 0
5 - 9 : 0 0 0
cos: outgoing
-------------------------------
0 - 4 : 739155 0 0 0 0
5 - 9 : 90 0 0
Policer: Inprofile: 0 OutofProfile: 0
If no interface config, the queue-set 1 will be used:
Device# show mls qos queue-set 1
Queueset: 1
Queue : 1 2 3 4
----------------------------------------------
buffers : 15 25 40 20
threshold1: 100 125 100 60
threshold2: 100 125 100 150
reserved : 50 100 100 50
maximum : 200 400 400 200
For interface config queue-set 2 explicitly:
Device# show mls qos queue-set 2
Queueset: 2
Queue : 1 2 3 4
----------------------------------------------
buffers : 25 25 25 25
threshold1: 100 200 100 100
threshold2: 100 200 100 100
reserved : 50 50 50 50
maximum : 400 400 400 400
Use the show mls qos interface user EXEC command to display quality of service (QoS) information at the port level.
|
interface-id |
(Optional) Display QoS information for the specified port. Valid interfaces include physical ports. |
|
buffers |
(Optional) Display the buffer allocation among the queues. |
|
queueing |
(Optional) Display the queuing strategy (shared or shaped) and the weights corresponding to the queues. |
|
statistics |
(Optional) Display statistics for sent and received Differentiated Services Code Points (DSCPs) and class of service (CoS) values, the number of packets enqueued or dropped per egress queue, and the number of in-profile and out-of-profile packets for each policer. |
|
| begin |
(Optional) Display begins with the line that matches the expression. |
|
| exclude |
(Optional) Display excludes lines that match the expression. |
|
| include |
(Optional) Display includes lines that match the specified expression. |
|
expression |
Expression in the output to use as a reference point. |
Note | Though visible in the command-line help string, the policer keyword is not supported. |
(multiple class with queue-limit turn on)
Device# show policy-map q-limit
Policy Map q-limit
Class users-class
Queuing action ( shaper, bandwidth and bandwidth remaining)
queue-limit cos 2 percent 50
queue-limit cos 3 percent 50
queue-limit cos 6 percent 70
queue-limit cos 7 percent 70
Device# show policy-map interface gigbitEthernet1/0/1
Note | The policy have to be applied to the interface to view the output of the show policy-map interface command. Using the above configuration, cos 2 and cos 3 will be dropped earlier then cos 6 and 7. |
Example: Enabling Queue-Buffer
Enabling Queue-Buffer-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS queue-set output [1] buffers (15 25 40 20) |
Interface config queue-set (default queue-set 1) |
Policy-map with queuing action and queue-buffers ratio (0-100) |
Default queue-buffer: Device# show mls qos queue-set 1 Queueset: 1 Queue : 1 2 3 4 ---------------------------------------------- buffers : 25 25 25 25 threshold1: 100 200 100 100 threshold2: 100 200 100 100 reserved : 50 50 50 50 maximum : 400 400 400 400 User define queue-buffer: mls qos queue-set output 1 buffers 15 25 40 20 Device# show mls qos queue-set 1 Queueset: 1 Queue : 1 2 3 4 ---------------------------------------------- buffers : 15 25 40 20 threshold1: 100 125 100 60 threshold2: 100 125 100 150 reserved : 50 100 100 50 maximum : 200 400 400 200
Device# show policy-map queue-buffer
Policy Map queue-buffer
Class cos7
bandwidth percent 10
queue-buffers ratio 15
Class cos1
bandwidth percent 30
queue-buffers ratio 25
class-map:
========
Device# show class-map cos7
Class Map match-any cos7 (id 22)
Match cos 7
Device# show class-map cos1
Class Map match-any cos1 (id 28)
Match cos 1
Attach to the interface at egress direction:
Device# show policy-map interface gigbitEthernet1/0/1
Example: Enabling Bandwidth
Enabling Bandwidth-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
MLS QoS (share mode) |
Bandwidth in policy map |
Default share and shape mode:
Device# show mls qos interface gigabitEthernet 1/0/1 queueing GigabitEthernet1/0/1 Egress Priority Queue : disabled Shaped queue weights (absolute) : 25 0 0 0 Shared queue weights : 25 25 25 25 The port bandwidth limit : 100 (Operational Bandwidth:100.0) The port is mapped to qset : 1 User config share mode under interface: interface GigabitEthernet1/0/1 srr-queue bandwidth share 40 30 20 10 srr-queue bandwidth shape 0 0 0 0 Device# show mls qos interface gigabitEthernet1/0/1 queueing GigabitEthernet1/0/1 Egress Priority Queue : disabled Shaped queue weights (absolute) : 0 0 0 0 Shared queue weights : 40 30 20 10 The port bandwidth limit : 100 (Operational Bandwidth:100.0) The port is mapped to qset : 1
Device# show policy-map bandwidth
Policy Map bandwidth
Class cos1
bandwidth percent 40
Class cos2
bandwidth percent 30
Class cos3
bandwidth percent 20
Class class-default
bandwidth percent 10
Device# show class-map cos1
Class Map match-any cos1
Match cos 1
Device# show class-map cos2
Class Map match-any cos2
Match cos 2
Device# show class-map cos3
Class Map match-any cos3 (id 26)
Match cos 3
Device# show class-map cos4
Class Map match-any cos4 (id 25)
Match cos 4
Example: Enabling Priority
Verifying Priority-Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
||
|
MLS QoS (expedite queue)
|
Interface level configuration priority-queue out (make the first queue of the corresponding queue-set as the strict priority queue.) |
Priority level 1 in the policy map. |
interface GigabitEthernet1/0/2 priority-queue out end Device# show mls qos interface gigabitEthernet1/0/2 queueing GigabitEthernet1/0/2 Egress Priority Queue : enabled Shaped queue weights (absolute) : 25 0 0 0 Shared queue weights : 25 25 25 25 The port bandwidth limit : 100 (Operational Bandwidth:100.0) The port is mapped to qset : 1
Device# show run policy-map priority-queue
class cos7
priority level 1 strict priority
class cos1
shape average percent 10
Attach the above policy to interface at egress side:
Example: Enabling QoS Shaper
Enabling QoS Shaper-Cisco Catalyst 3750 Series Switch
Default shape mode: GigabitEthernet1/0/3 Egress Priority Queue : disabled Shaped queue weights (absolute) : 25 0 0 0 Shared queue weights : 25 25 25 25 The port bandwidth limit : 100 (Operational Bandwidth:100.0) The port is mapped to qset : 1 User define shape mode: interface GigabitEthernet1/0/3 srr-queue bandwidth shape 4 4 4 4 Device# show mls qos interface gigabitEthernet 1/0/3 queueing GigabitEthernet1/0/3 Egress Priority Queue : disabled Shaped queue weights (absolute) : 4 4 4 4 Shared queue weights : 25 25 25 25 The port bandwidth limit : 100 (Operational Bandwidth:100.0) The port is mapped to qset : 1
Device# show policy-map shape
Policy Map shape
Class cos1
Average Rate Traffic Shaping
cir 25%
Class cos2
Average Rate Traffic Shaping
cir 25%
Class cos3
Average Rate Traffic Shaping
cir 25%
Class cos4
Average Rate Traffic Shaping
cir 25%
Example: Hierarchical Modular QoS
Hierarchical Modular QoS - Cisco Catalyst 3750 Series Switch
|
Cisco Catalyst 3750 Series Switch (Global Configuration) |
Cisco Catalyst 3750 Series Switch (Interface) |
Cisco Catalyst 3850 Series Switch |
|
Class-map, Policy-map |
Per-VLAN Ingress policy |
Note:
SVI: Parent [class acl based class-map->policing]
Child [class interface range class-map->marking]
Child class-map:
Device(config)# class-map cm-interface-1
Device(config-cmap)# match input gigabitethernet3/0/1 - gigabitethernet3/0/2
Child policy-map:
Device(config)# policy-map port-plcmap-1
Device(config-pmap)# class cm-interface-1
Device(config-pmap-c)# police 900000 9000 drop
Parent class-map matching acl:
Device(config)# access-list 101 permit ip any any
Parent class-map:
Device(config)# class-map cm-1
Device(config-cmap)# match access 101
Device(config)# policy-map vlan-plcmap
Device(config-pmap)# class cm-1
Device(config-pmap-c)# set dscp 7
Device(config-pmap-c)# service-policy port-plcmap-1
Device(config-pmap-c)# exit
Device(config-pmap)# class cm-2
Device(config-pmap-c)# service-policy port-plcmap-1
Device(config-pmap-c)# set dscp 10
Attach the policy to the interface:
Device(config)# interface vlan 10
Device(config-if)# service-policy input vlan-plcmap
Note: Due to target change, this can't be one to one mapping, need config based on
customer requirement.
Target is at port level
Parent classify on vlan
Child: none vlan classification [for example cos/dscp]
Device# show running-config policy-map PV_parent_marking_child_policing
class vlan10
set dscp 63
service-policy child_class_dscp_policing
class vlan11
set cos 5
service-policy child_class_dscp_policing
class vlan12
set precedence 6
service-policy child_class_dscp_policing
Device# show running-config policy-map child_class_dscp_policing
class dscp1
police cir percent 12
class dscp2
police cir percent 15
class dscp3
police cir percent 20
class class-default
police cir percent 22
Device# show running-config class-map vlan10
class-map match-any vlan10
match vlan 10
Device# show running-config class-map vlan11
class-map match-any vlan11
match vlan 11
Device# show running-config class-map vlan12
class-map match-any vlan12
match vlan 12
Device# show running-config class-map dscp1
class-map match-any dscp1
match dscp 1
Device# show running-config class-map dscp2
class-map match-any dscp2
match dscp 2
Device# show running-config class-map dscp3
class-map match-any dscp3
match dscp 3
Additional References for QoS Monitoring
Related Documents
Technical Assistance
| Description | Link |
|---|---|
|
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Feature Information for QoS Monitoring
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to . An account on Cisco.com is not required.Copyright © 2015, Cisco Systems, Inc. All rights reserved.