Example for Configuring HQoS in Common 8-CoS Mode
This section provides an example for configuring HQoS in common 8-CoS mode so that different service traffic is transmitted through different sub-interfaces.
Networking Requirements
As shown in Figure 1, users need to access the device through the DSLAM. The device functions as the access device of the backbone network.
Three types of services of the users are to be mapped to three PVCs of the DSLAM. The traffic flows of the same user access the device through sub-interfaces GE 0/1/0.1, GE 0/1/0.2, and GE 0/1/0.3, respectively, with different types of traffic flowing through different sub-interfaces. When reaching the device, traffic flows carry double tags. The inner tag indicates the user, and the outer tag indicates the service type. Uniform scheduling of user traffic needs to be implemented with 100 Mbit/s assured bandwidth. The bandwidth for EF flows should be 30 Mbit/s, and the bandwidth for AF1 flows should be 10 Mbit/s. On the downstream interface of the device, the traffic rate of EF flows should not be higher than 120 Mbit/s.
The VLAN tags marked for services are as follows:
- PC: The outer VLAN tag is 1; the inner VLAN tag is 1 to 100.
- VoIP: The outer VLAN tag is 2; the inner VLAN tag is 1 to 100.
- IPTV: The outer VLAN tag is 3; the inner VLAN tag is 1 to 100.
Sub-interfaces 1.1, sub-interface 2.1, subinterface 3.1, and interface 2 in this example represent GE 0/1/0.1, GE 0/1/0.2, GE 0/1/0.3, and GE 0/1/8, respectively.
Configuration Roadmap
The configuration roadmap is as follows:
Configure packet drop parameters for a flow WRED object.
Configure scheduling algorithms and parameters for FQs.
Configure a network header length for a service template.
Configure user-queue scheduling parameters for a QoS profile.
Configure packet drop parameters for a port WRED object.
Configure PQs on the downstream interface of the device.
Data Preparation
To complete the configuration, you need the following data:
Packet drop parameters for flow WRED
Scheduling algorithms and parameters for FQs
CIR, PIR, and network header length for user-queue in the QoS profile
Interface to which the QoS profile is applied
Port WRED parameters that are referenced by port-queue
Scheduling algorithms, related parameters, and shaping values for port-queue
Procedure
- Configure a flow WRED object.
# Configure packet drop parameters for flow WRED.
<HUAWEI> system-view [~HUAWEI] flow-wred test [*HUAWEI-flow-wred-test] color green low-limit 70 high-limit 100 discard-percentage 100 [*HUAWEI-flow-wred-test] color yellow low-limit 60 high-limit 90 discard-percentage 100 [*HUAWEI-flow-wred-test] color red low-limit 50 high-limit 80 discard-percentage 100 [*HUAWEI-flow-wred-test] commit [~HUAWEI-flow-wred-test] return
After the preceding configuration, you can run the display flow-wred configuration verbose command to view the configured parameters of the flow WRED object.
<HUAWEI> display flow-wred configuration verbose test Flow wred name : test --------------------------------------------------- Color Low-limit High-limit Discard-percent --------------------------------------------------- green 70 100 100 yellow 60 90 100 red 50 80 100 Queue Depth : 1000 Reference relationships : NULL - Configure scheduling algorithms and parameters for FQs.
# Configure scheduling algorithms, WRED parameters, and shaping values for FQs.
<HUAWEI> system-view [~HUAWEI] flow-queue test [*HUAWEI-flow-queue-template-test] queue af1 lpq flow-wred test shaping 10000 [*HUAWEI-flow-queue-template-test] queue ef pq flow-wred test shaping 30000 [*HUAWEI-flow-queue-template-test] commit [~HUAWEI-flow-queue-template-test] return
After the preceding configuration, you can run the display flow-queue configuration verbose command to view the configuration of the FQ profile.
<HUAWEI> display flow-queue configuration verbose test Codes: Arith(Schedule algorithm) U-Weight(Schedule weight configured by users) I-Weight(Inverse schedule weight used by TM) A-Weight(Actual schedule weight obtained by users) Shp(Shaping value, the percentage of subscriber queue's PIR) Pct(The percentage of subscriber queue's PIR) Drop-Arith(The name of the WRED object used by the flow queue) Flow Queue Template : test ------------------------------------------------------------------ Cos Arith U-Weight I-Weight A-Weight Shp Pct Drop-Arith ------------------------------------------------------------------ be wfq 10 3 10.00 - - Tail Drop af1 lpq - - - 10000 - test af2 wfq 10 3 10.00 - - Tail Drop af3 wfq 15 2 15.00 - - Tail Drop af4 wfq 15 2 15.00 - - Tail Drop ef pq - - - 30000 - test cs6 pq - - - - - Tail Drop cs7 pq - - - - - Tail Drop Reference relationships : NULL - Configure a network header length for a service template.
# Create a service template and configure a network header length for it.
<HUAWEI> system-view [~HUAWEI] service-template test [*HUAWEI-service-template-test-slot-all] network-header-length 12 inbound [*HUAWEI-service-template-test-slot-all] commit [~HUAWEI-service-template-test-slot-all] return
After the preceding configuration, you can run the display service-template configuration verbose command to view the configuration, network header length, and reference relationship of the service template.<HUAWEI> display service-template configuration verbose [service-template detail information] total number : 1 slot all : 1 service-template-name : test slot : all [current configuration] inbound network-header-length: 12 outbound network-header-length: NA [reference relationship] NULL - Configure scheduling parameters for a QoS profile and apply it to interfaces.
# Configure user-queue scheduling parameters for a QoS profile.
<HUAWEI> system-view [~HUAWEI] qos-profile test [*HUAWEI-qos-profile-test] user-queue cir 100000 flow-queue test service-template test [*HUAWEI-qos-profile-test] commit [~HUAWEI-qos-profile-test] return
# Create QinQ VLAN tag termination sub-interfaces GE 0/1/0.1, GE 0/1/0.2, and GE 0/1/0.3, and apply the QoS profile to them.
<HUAWEI> system-view [~HUAWEI] interface gigabitethernet 0/1/0.1 [*HUAWEI-GigabitEthernet0/1/0.1] control-vid 1 qinq-termination [*HUAWEI-GigabitEthernet0/1/0.1] qinq termination pe-vid 1 ce-vid 1 to 100 [*HUAWEI-GigabitEthernet0/1/0.1] ip address 10.10.1.1 24 [*HUAWEI-GigabitEthernet0/1/0.1] qos-profile test inbound pe-vid 1 ce-vid 1 to 100 identifier ce-vid group group1 [*HUAWEI-GigabitEthernet0/1/0.1] commit [~HUAWEI-GigabitEthernet0/1/0.1] quit [~HUAWEI] interface gigabitethernet 0/1/0.2 [*HUAWEI-GigabitEthernet0/1/0.2] control-vid 2 qinq-termination [*HUAWEI-GigabitEthernet0/1/0.2] qinq termination pe-vid 2 ce-vid 1 to 100 [*HUAWEI-GigabitEthernet0/1/0.2] ip address 10.10.2.1 24 [*HUAWEI-GigabitEthernet0/1/0.2] qos-profile test inbound pe-vid 2 ce-vid 1 to 100 identifier ce-vid group group1 [*HUAWEI-GigabitEthernet0/1/0.2] commit [~HUAWEI-GigabitEthernet0/1/0.2] quit [~HUAWEI] interface gigabitethernet 0/1/0.3 [*HUAWEI-GigabitEthernet0/1/0.3] control-vid 3 qinq-termination [*HUAWEI-GigabitEthernet0/1/0.3] qinq termination pe-vid 3 ce-vid 1 to 100 [*HUAWEI-GigabitEthernet0/1/0.3] ip address 10.10.3.1 24 [*HUAWEI-GigabitEthernet0/1/0.3] qos-profile test inbound pe-vid 3 ce-vid 1 to 100 identifier ce-vid group group1 [*HUAWEI-GigabitEthernet0/1/0.3] commit [~HUAWEI-GigabitEthernet0/1/0.3] return
After the preceding configuration, you can run the display qos-profile configuration qos-profile-name and display qos-profile application profile-name commands to view the configuration and application of the QoS profile.
<HUAWEI> display qos-profile configuration test qos-profile: test inbound: outbound: both: user-queue cir 100000 pir 100000 flow-queue test service-template test <HUAWEI> display qos-profile application test qos-profile test: GigabitEthernet0/1/0.1 GigabitEthernet0/1/0.2 GigabitEthernet0/1/0.3 Reference number by access user: [inbound] 0, [outbound] 0 Reference number by VNI: [inbound] 0, [outbound] 0
You can run the display qos-profile statistics interface gigabitethernet0/1/0.1 pe-vid 1 ce-vid 1 inbound command to view statistics about the QoS profile on GE 0/1/0.1.
<HUAWEI> display qos-profile statistics interface gigabitethernet 0/1/0.1 pe-vid 1 ce-vid 1 inbound
- Configure a port WRED object.
# Configure packet drop parameters for port WRED.
<HUAWEI> system-view [~HUAWEI] port-wred test [*HUAWEI-port-wred-test] color green low-limit 70 high-limit 100 discard-percentage 100 [*HUAWEI-port-wred-test] color yellow low-limit 60 high-limit 90 discard-percentage 100 [*HUAWEI-port-wred-test] color red low-limit 50 high-limit 80 discard-percentage 100 [*HUAWEI-port-wred-test] commit [~HUAWEI-port-wred-test] return
After the preceding configuration, you can run the display port-wred configuration verbose command to view the configuration of the port WRED object.
<HUAWEI> display port-wred configuration verbose test Port wred name : test --------------------------------------------------- Color Low-limit High-limit Discard-percent --------------------------------------------------- green 70 100 100 yellow 60 90 100 red 50 80 100 Queue Depth(kbytes) : 8000 Reference relationships : NULL
- Configure a PQ.
# Configure a scheduling algorithm, WRED parameter, and shaping value for a PQ.
<HUAWEI> system-view [~HUAWEI] interface gigabitethernet 0/1/8 [~HUAWEI-GigabitEthernet0/1/8] undo shutdown [*HUAWEI-GigabitEthernet0/1/8] port-queue ef pq shaping 120 port-wred test outbound [*HUAWEI-GigabitEthernet0/1/8] commit [~HUAWEI-GigabitEthernet0/1/8] return
After the preceding configuration, you can run the display port-queue configuration interface command to view the configuration of the PQ.
<HUAWEI> display port-queue configuration interface gigabitethernet 0/1/8 outbound GigabitEthernet0/1/8 outbound current port-queue configuration: be : arithmetic: wfq weight: 10 tm weight: 3 fact weight: 10.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 12800 - 12800 yellow(low-high limit) (kbytes) 12800 - 12800 red (low-high limit) (kbytes) 12800 - 12800 current queue-length (kbytes) 12800 cir:123 cir-percentage:NA cir-arithmetic:pq cir-weight:NA pir:123 pir-percentage:NA pir-arithmetic:lpq pir-weight:NA af1: arithmetic: wfq weight: 10 tm weight: 3 fact weight: 10.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 12800 - 12800 yellow(low-high limit) (kbytes) 12800 - 12800 red (low-high limit) (kbytes) 12800 - 12800 current queue-length (kbytes) 12800 cir:NA cir-percentage:10 cir-arithmetic:pq cir-weight:NA pir:NA pir-percentage:20 pir-arithmetic:wfq pir-weight:15 af2: arithmetic: wfq weight: 10 tm weight: 3 fact weight: 10.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 12800 - 12800 yellow(low-high limit) (kbytes) 12800 - 12800 red (low-high limit) (kbytes) 12800 - 12800 current queue-length (kbytes) 12800 cir:NA cir-percentage:NA cir-arithmetic:NA cir-weight:NA pir:NA pir-percentage:NA pir-arithmetic:NA pir-weight:NA af3: arithmetic: wfq weight: 15 tm weight: 2 fact weight: 15.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 12800 - 12800 yellow(low-high limit) (kbytes) 12800 - 12800 red (low-high limit) (kbytes) 12800 - 12800 current queue-length (kbytes) 12800 cir:NA cir-percentage:NA cir-arithmetic:NA cir-weight:NA pir:NA pir-percentage:NA pir-arithmetic:NA pir-weight:NA af4: arithmetic: wfq weight: 15 tm weight: 2 fact weight: 15.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 12800 - 12800 yellow(low-high limit) (kbytes) 12800 - 12800 red (low-high limit) (kbytes) 12800 - 12800 current queue-length (kbytes) 12800 cir:NA cir-percentage:NA cir-arithmetic:NA cir-weight:NA pir:NA pir-percentage:NA pir-arithmetic:NA pir-weight:NA ef : arithmetic: pq weight: NA tm weight: 0 fact weight: 0.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 1280 - 1280 yellow(low-high limit) (kbytes) 1280 - 1280 red (low-high limit) (kbytes) 1280 - 1280 current queue-length (kbytes) 1280 cir:NA cir-percentage:NA cir-arithmetic:NA cir-weight:NA pir:NA pir-percentage:NA pir-arithmetic:NA pir-weight:NA cs6: arithmetic: pq weight: NA tm weight: 0 fact weight: 0.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 1280 - 1280 yellow(low-high limit) (kbytes) 1280 - 1280 red (low-high limit) (kbytes) 1280 - 1280 current queue-length (kbytes) 1280 cir:NA cir-percentage:NA cir-arithmetic:NA cir-weight:NA pir:NA pir-percentage:NA pir-arithmetic:NA pir-weight:NA cs7: arithmetic: pq weight: NA tm weight: 0 fact weight: 0.00 shaping(kbps): NA port-wred: NA green (low-high limit) (kbytes) 1280 - 1280 yellow(low-high limit) (kbytes) 1280 - 1280 red (low-high limit) (kbytes) 1280 - 1280 current queue-length (kbytes) 1280 cir:NA cir-percentage:NA cir-arithmetic:NA cir-weight:NA pir:NA pir-percentage:NA pir-arithmetic:NA pir-weight:NA
- Verify the configuration.
When there are flows on the network, you can observe that packets of user 1's AF1 and EF flows and user 2's EF flows are forwarded at the assured bandwidth.
Running the display port-queue statistics command on the downstream interface GE 0/1/8 of the device, you can see that EF packets increase rapidly.
<HUAWEI> display port-queue statistics interface gigabitethernet 0/1/8 ef outbound GigabitEthernet0/1/8 outbound traffic statistics: [ef] Current usage percentage of queue: 10 Total pass: 5,097,976 packets, 458,817,750 bytes Total discard: 0 packets, 0 bytes Drop tail discard: 0 packets, 0 bytes Wred discard: 0 packets, 0 bytes Last 30 seconds pass rate: 12,030 pps, 8,661,600 bps Last 30 seconds discard rate: 0 pps, 0 bps Drop tail discard rate: 0 pps, 0 bps Wred discard rate: 0 pps, 0 bps buffer size: 10 kbytes used buffer size: 0 kbytes Peak rate: 2013-11-17 13:15:18 8,661,600 bps
Configuration Files
Device configuration file
# flow-wred test color green low-limit 70 high-limit 100 discard-percentage 100 color yellow low-limit 60 high-limit 90 discard-percentage 100 color red low-limit 50 high-limit 80 discard-percentage 100 # flow-queue test queue af1 lpq shaping 10000 flow-wred test queue ef pq shaping 30000 flow-wred test # shaping 500000 inbound # service-template test network-header-length 12 inbound # qos-profile test user-queue cir 100000 pir 100000 flow-queue test user-group-queue test service-template test # port-wred test color green low-limit 70 high-limit 100 discard-percentage 100 color yellow low-limit 60 high-limit 90 discard-percentage 100 color red low-limit 50 high-limit 80 discard-percentage 100 # interface GigabitEthernet0/1/0.1 encapsulation qinq-termination qinq termination pe-vid 1 ce-vid 1 to 100 ip address 10.10.1.1 255.255.255.0 qos-profile test inbound pe-vid 1 ce-vid 1 to 100 idendifier ce-vid group group1 # interface GigabitEthernet0/1/0.2 encapsulation qinq-termination qinq termination pe-vid 2 ce-vid 1 to 100 ip address 10.10.2.1 255.255.255.0 qos-profile test inbound pe-vid 2 ce-vid 1 to 100 idendifier ce-vid group group1 # interface GigabitEthernet0/1/0.3 encapsulation qinq-termination qinq termination pe-vid 3 ce-vid 1 to 100 ip address 10.10.3.1 255.255.255.0 qos-profile test inbound pe-vid 3 ce-vid 1 to 100 idendifier ce-vid group group1 # interface GigabitEthernet0/1/8 undo shutdown ip address 10.20.1.1 255.255.255.0 port-queue ef pq shaping 120 port-wred test outbound # ospf 10 area 0.0.0.0 network 10.20.1.0 0.0.0.255 network 10.10.1.0 0.0.0.255 network 10.10.2.0 0.0.0.255 network 10.10.3.0 0.0.0.255 # return