組網需求
如圖所示,企業用戶通過Switch的接口GE2/0/1連接到外部網絡設備。
每天8:30~18:00的時間段為工作時間,對員工訪問外網的速率進行限制,要求工作時間訪問外網的速率不超過4Mbit/s。
配置在指定時間段進行限速組網圖
配置思路
採用匹配時間段的流策略方式實現限速,具體配置思路如下:
配置各接口,實現企業用戶能通過Switch訪問外部網絡。
配置時間範圍,用於在ACL中引用。
配置ACL,匹配指定時間段通過設備的流量。
配置流策略,對於符合ACL規則的報文進行限速。
在接口GE1/0/1的入方向應用流策略。
操作步驟
創建VLAN並配置各接口
# 在Switch上創建VLAN10。
system-view[HUAWEI] sysname Switch[Switch] vlan 10[Switch-vlan10] quit # 配置Switch上接口GE1/0/1和GE2/0/1為Trunk類型接口,並加入VLAN10。
[Switch] interface gigabitethernet 1/0/1[Switch-GigabitEthernet1/0/1] port link-type trunk[Switch-GigabitEthernet1/0/1] port trunk allow-pass vlan 10[Switch-GigabitEthernet1/0/1] quit[Switch] interface gigabitethernet 2/0/1[Switch-GigabitEthernet2/0/1] port link-type trunk[Switch-GigabitEthernet2/0/1] port trunk allow-pass vlan 10[Switch-GigabitEthernet2/0/1] quit
創建週期時間段working_time,時間範圍為工作日的8:30~18:00。
[Switch] time-range working_time 08:30 to 18:00 working-day //定義工作時間
配置ACL 2001,配置三條規則,分別限制源IP地址為192.168.1.10、192.168.1.11、192.168.1.12的報文在工作時間的帶寬。
[Switch] acl number 2001[Switch-acl-basic-2001] rule permit source 192.168.1.10 0 time-range working_time //限制源IP為192.168.1.10的報文在工作時間的帶寬[Switch-acl-basic-2001] rule permit source 192.168.1.11 0 time-range working_time //限制源IP為192.168.1.11的報文在工作時間的帶寬[Switch-acl-basic-2001] rule permit source 192.168.1.12 0 time-range working_time //限制源IP為192.168.1.12的報文在工作時間的帶寬[Switch-acl-basic-2001] quit
配置匹配ACL 2001的流分類規則,實現對報文的分類。
[Switch] traffic classifier c1[Switch-classifier-c1] if-match acl 2001[Switch-classifier-c1] quit
配置流行為,限制訪問外網速率不超過4Mbit/s。
[Switch] traffic behavior b1[Switch-behavior-b1] car cir 4096 //限制工作時間訪問外網的速率不超過4Mbit/s[Switch-behavior-b1] statistic enable[Switch-behavior-b1] quit
配置流策略,並在接口GE1/0/1的入方向應用該策略。
[Switch] traffic policy p1[Switch-trafficpolicy-p1] classifier c1 behavior b1[Switch-trafficpolicy-p1] quit[Switch] interface gigabitethernet 1/0/1[Switch-GigabitEthernet1/0/1] traffic-policy p1 inbound[Switch-GigabitEthernet1/0/1] quit
驗證配置結果
# 查看流分類的配置信息。
[Switch] display traffic classifier user-defined c1
User Defined Classifier Information:
Classifier: c1
Precedence: 5
Operator: OR
Rule(s) : if-match acl 2001# 查看流策略的配置信息。
[Switch] display traffic policy user-defined p1
User Defined Traffic Policy Information:
Policy: p1
Classifier: c1
Operator: OR
Behavior: b1
Permit
Committed Access Rate:
CIR 4096 (Kbps), PIR 4096 (Kbps), CBS 770048 (byte), PBS 1282048 (byte)
Color Mode: color Blind
Conform Action: pass
Yellow Action: pass
Exceed Action: discard
Statistic: enable# 查看在接口上應用的流策略信息。在工作時間,當GE1/0/1的入方向來自各網段的報文速率之和大於4Mbit/s時會出現丟包,各網段報文的速率被限制在4Mbit/s。
[Switch] display traffic policy statistics interface gigabitethernet 1/0/1 inbound
Interface: GigabitEthernet1/0/1
Traffic policy inbound: p1
Rule number: 3
Current status: success
Statistics interval: 300
---------------------------------------------------------------------
Board : 1
---------------------------------------------------------------------
Matched | Packets: 38,761
| Bytes: -
| Rate(pps): 0
| Rate(bps): ----------------------------------------------------------------------
Passed | Packets: 25,534
| Bytes: -
| Rate(pps): 0
| Rate(bps): ----------------------------------------------------------------------
Dropped | Packets: 13,227
| Bytes: -
| Rate(pps): 0
| Rate(bps): ----------------------------------------------------------------------
Filter | Packets: 0
| Bytes: ----------------------------------------------------------------------
Car | Packets: 13,227
| Bytes: ----------------------------------------------------------------------
說明:
請配置LSW與Switch對接的接口為Trunk類型,並加入VLAN10。
# 創建VLANIF10,併為VLANIF10配置IP地址192.168.1.1/24。
[Switch] interface vlanif 10[Switch-Vlanif10] ip address 192.168.1.1 24[Switch-Vlanif10] quit
說明:
請配置Router與Switch對接的接口ip地址為192.168.1.2/24,並在該接口上配置子接口終結VLAN。
配置文件
Switch的配置文件
#
sysname Switch#
vlan batch 10
#
time-range working_time 08:30 to 18:00 working-day
#
acl number 2001
rule 5 permit source 192.168.1.10 0 time-range working_time
rule 10 permit source 192.168.1.11 0 time-range working_time
rule 15 permit source 192.168.1.12 0 time-range working_time
#
traffic classifier c1 operator or precedence 5
if-match acl 2001
#
traffic behavior b1
permit
car cir 4096 pir 4096 cbs 770048 pbs 1282048 mode color-blind green pass yellow pass red discard
statistic enable
#
traffic policy p1 match-order config
classifier c1 behavior b1
#
interface Vlanif10
ip address 192.168.1.1 255.255.255.0
#
interface GigabitEthernet1/0/1
port link-type trunk
port trunk allow-pass vlan 10
traffic-policy p1 inbound
#
interface GigabitEthernet2/0/1
port link-type trunk
port trunk allow-pass vlan 10
#
return
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