QoS简单配置案例

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1、两边两个方向做相同的配置：入口复杂流分类用mqc方式配置，ds内设备入口配简单流分类。

2、两边两个方法做拥塞管理配置，拥塞管理配置思路：

拥塞管理的两种配置方法（全部用一种也可以，这里学习就用了两种做实验）：
AR1上用基于队列r的方法拥塞管理配置：
在AR1的出口使用基于队列拥塞管理，AR2的出口配置基于mqc的拥塞管理。
AR1上承载业务会根据标记进入不同的端口队列：语音流量进入EF队列，视频流量进入
AF3队列，数据流量进入AF1队列。
设置EF队列使用PQ调度，AF3、AF1队列用WFQ调度。
qos queue-profile qp1
schedule wfq 0 to 3 pq 5
queue 3 weight 50
queue 1 weight 30

查看
dis qos queue-profile qp1

在出接口上应用
int g0/0/0
qos queue-profile qp1

在AR2上用mqc进行拥塞管理配置(LLQ比EF优先级高)：
语音流量用LLQ队列配置最大可用带宽20M，视频流量使用AF_video队列配置最小
确保带宽50M，数据流量使用AF_data队列配置最小可确保带宽30M。
配置语音流量dscp值为ef
traffic classifier ef
if-match dscp ef
quit

视频流量dscp值为af31
traffic classifier AF_video
if-match dscp af31
quit

数量流量dscp值为af11
traffic classifier AF_data
if-match dscp af11
quit

流行为LLQ带宽最大20M
traffic behavior LLQ
queue llq bandwidth 20480
quit

为video视频最小保证50M
traffic behavior AF_video
queue af bandwidth 51200
quit

为video数据最小保证30M
traffic behavior AF_data
queue af bandwidth 30720
quit

定义流策略，将流分类ef和流行为LLQ关联，将流分类AF和流行为AF关联。
traffic policy p2
classifier EF behavior LLQ
classifier AF_video behavior AF_video
classifier AF_data behavior AF_data
quit

出接口上应用
int g0/0/0
traffic-policy p2 outbound

查看流策略
dis traffic policy user-defined p2

lsw1配置

vlan batch 11 100 200 300

interface Vlanif11
ip address 10.0.0.6 255.255.255.252

interface Vlanif100
ip address 192.168.1.1 255.255.255.0

interface Vlanif200
ip address 192.168.2.1 255.255.255.0

interface Vlanif300
ip address 192.168.3.1 255.255.255.0

interface MEth0/0/1

interface GigabitEthernet0/0/1
port link-type access
port default vlan 100

interface GigabitEthernet0/0/2
port link-type access
port default vlan 200

interface GigabitEthernet0/0/3
port link-type access
port default vlan 11

interface GigabitEthernet0/0/4
port link-type access
port default vlan 300

ospf 1
area 0.0.0.0
network 0.0.0.0 255.255.255.255

AR1

acl number 3000
description voip
rule 5 permit ip source 192.168.1.0 0.0.0.255
acl number 3001
description video
rule 5 permit ip source 192.168.2.0 0.0.0.255

qos queue-profile qp1
queue 1 weight 30
queue 3 weight 50
schedule wfq 0 to 3 pq 5

traffic classifier video operator or
if-match acl 3001
traffic classifier voip operator or
if-match acl 3000
traffic classifier data operator or
if-match any

traffic behavior ef
remark dscp ef
traffic behavior af11
remark dscp af11
traffic behavior af31
remark dscp af31

traffic policy p1
classifier voip behavior ef
classifier video behavior af31
classifier data behavior af11

interface GigabitEthernet0/0/0
ip address 10.0.0.1 255.255.255.252
trust dscp override
qos queue-profile qp1

interface GigabitEthernet0/0/1
ip address 10.0.0.5 255.255.255.252
traffic-policy p1 inbound

interface GigabitEthernet0/0/2

interface NULL0

ospf 1
area 0.0.0.0
network 0.0.0.0 255.255.255.255

lsw2

vlan batch 12 100 200 300

interface Vlanif12
ip address 10.0.0.10 255.255.255.252

interface Vlanif100
ip address 172.16.1.1 255.255.255.0

interface Vlanif200
ip address 172.16.2.1 255.255.255.0

interface Vlanif300
ip address 172.16.3.1 255.255.255.0

interface MEth0/0/1

interface GigabitEthernet0/0/1
port link-type access
port default vlan 100

interface GigabitEthernet0/0/2
port link-type access
port default vlan 200

interface GigabitEthernet0/0/3
port link-type access
port default vlan 300

interface GigabitEthernet0/0/4
port link-type access
port default vlan 12

ospf 1
area 0.0.0.0
network 0.0.0.0 255.255.255.255

AR2

acl number 3000
description voip
rule 5 permit ip source 172.16.1.0 0.0.0.255
acl number 3001
description video
rule 5 permit ip source 172.16.2.0 0.0.0.255

traffic classifier AF_data operator or
if-match dscp af11
traffic classifier video operator or
if-match acl 3001
traffic classifier ef operator or
if-match dscp ef
traffic classifier voip operator or
if-match acl 3000
traffic classifier AF_video operator or
if-match dscp af31
traffic classifier data operator or
if-match any

traffic behavior AF_data
queue af bandwidth 30720
traffic behavior ef
remark dscp ef
traffic behavior AF_video
queue af bandwidth 51200
traffic behavior af11
remark dscp af11
traffic behavior af31
remark dscp af31
traffic behavior LLQ
queue llq bandwidth 20480 cbs 512000

traffic policy p2
classifier AF_video behavior AF_video
classifier AF_data behavior AF_data
traffic policy p1
classifier voip behavior ef
classifier video behavior af31
classifier data behavior af11

interface GigabitEthernet0/0/0
ip address 10.0.0.2 255.255.255.252
trust dscp override
traffic-policy p2 outbound

interface GigabitEthernet0/0/1
ip address 10.0.0.9 255.255.255.252
traffic-policy p1 inbound

interface GigabitEthernet0/0/2

interface NULL0

ospf 1
area 0.0.0.0
network 0.0.0.0 255.255.255.255