转载至：华为QUIDWAY系列路由器的负载均衡配置 - 走看看
华为系列路由器的负载均衡NQA联动侦测配置案例：
需求：该局域网，IP地址（末位奇数）走联通，IP地址（末位偶数）走电信当某个运营商不可达时，自动切换。通过NQA来确定运营商是否可达。，并与流行为、静态路由联动，实现自动切换。默认路由走联通，当联通不可达切至电信（配置的路由优先级，华为交换机静态路由默认优先级为60）
配置详情：
内网核心路由器配置；
<Huawei>dis cu [V200R003C00]#snmp-agent local-engineid 800007DB03000000000000snmp-agent #clock timezone China-Standard-Time minus 08:00:00#portal local-server load portalpage.zip#drop illegal-mac alarm#set cpu-usage threshold 80 restore 75#bfd#acl number 2000 description To-Unicomrule 10 permit source 192.168.0.0 0.0.0.255 acl number 2001 description To-Telecomrule 10 permit source 192.168.1.0 0.0.0.255 #acl number 3000 description NATrule 10 permit ip source 192.168.0.0 0.0.1.255 #traffic classifier DX operator andif-match acl 2001traffic classifier LT operator andif-match acl 2000#traffic behavior DXredirect ip-nexthop 20.1.1.1 track nqa test DXtraffic behavior LTredirect ip-nexthop 10.1.1.1 track nqa test LT#traffic policy loadclassifier LT behavior LTclassifier DX behavior DX#aaa authentication-scheme defaultauthorization-scheme defaultaccounting-scheme defaultdomain default domain default_admin local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$local-user admin service-type http#firewall zone Localpriority 15#interface GigabitEthernet0/0/0ip address 10.1.1.2 255.255.255.252 nat outbound 3000#interface GigabitEthernet0/0/1ip address 20.1.1.2 255.255.255.252 nat outbound 3000#interface GigabitEthernet0/0/2ip address 10.16.0.1 255.255.255.252 traffic-policy load inbound#interface NULL0#bfd lt bind peer-ip 10.1.1.1 interface GigabitEthernet0/0/0 source-ip 10.1.1.2 one-arm-echodiscriminator local 1min-echo-rx-interval 200commit#ip route-static 0.0.0.0 0.0.0.0 20.1.1.1 preference 150ip route-static 0.0.0.0 0.0.0.0 10.1.1.1 track nqa test LTip route-static 192.168.0.0 255.255.254.0 10.16.0.2ip route-static 202.106.0.30 255.255.255.255 10.1.1.1ip route-static 219.141.140.10 255.255.255.255 20.1.1.1#nqa test-instance test DX test-type icmpdestination-address ipv4 219.141.140.10frequency 5probe-count 2start nownqa test-instance test LT test-type icmpdestination-address ipv4 202.106.0.30frequency 5probe-count 1start now#user-interface con 0authentication-mode passworduser-interface vty 0 4user-interface vty 16 20#wlan ac#return<Huawei>
内网汇聚设备配置；
[Huawei]dis cu #sysname Huawei#vlan batch 10 100#cluster enablentdp enablendp enable#drop illegal-mac alarm#diffserv domain default#drop-profile default#aaaauthentication-scheme defaultauthorization-scheme defaultaccounting-scheme defaultdomain defaultdomain default_adminlocal-user admin password simple adminlocal-user admin service-type http#interface Vlanif1ip address 192.168.0.1 255.255.254.0#interface Vlanif10ip address 10.16.0.2 255.255.255.252#interface MEth0/0/1#interface GigabitEthernet0/0/1#interface GigabitEthernet0/0/2#interface GigabitEthernet0/0/3port link-type accessport default vlan 10#interface GigabitEthernet0/0/4#interface GigabitEthernet0/0/5#interface GigabitEthernet0/0/6#interface GigabitEthernet0/0/7#interface GigabitEthernet0/0/8#interface GigabitEthernet0/0/9#interface GigabitEthernet0/0/10#interface GigabitEthernet0/0/11#interface GigabitEthernet0/0/12#interface GigabitEthernet0/0/13#interface GigabitEthernet0/0/14#interface GigabitEthernet0/0/15#interface GigabitEthernet0/0/16#interface GigabitEthernet0/0/17#interface GigabitEthernet0/0/18#interface GigabitEthernet0/0/19#interface GigabitEthernet0/0/20#interface GigabitEthernet0/0/21#interface GigabitEthernet0/0/22#interface GigabitEthernet0/0/23#interface GigabitEthernet0/0/24#interface NULL0#ip route-static 0.0.0.0 0.0.0.0 10.16.0.1#user-interface con 0user-interface vty 0 4#return[Huawei]
模拟运营商配置 unicom；
<Huawei>dis cu #sysname Huawei#aaaauthentication-scheme defaultauthorization-scheme defaultaccounting-scheme defaultdomain defaultdomain default_adminlocal-user admin password cipher OOCM4m($F4ajUn1vMEIBNUw#local-user admin service-type http#firewall zone Localpriority 16#interface Ethernet0/0/0#interface Ethernet0/0/1#interface Serial0/0/0link-protocol ppp#interface Serial0/0/1link-protocol ppp#interface Serial0/0/2link-protocol ppp#interface Serial0/0/3link-protocol ppp#interface GigabitEthernet0/0/0ip address 1.1.1.1 255.255.255.252#interface GigabitEthernet0/0/1ip address 10.1.1.1 255.255.255.252#interface GigabitEthernet0/0/2#interface GigabitEthernet0/0/3#wlan#interface NULL0#interface LoopBack1ip address 202.106.0.30 255.255.255.255#interface LoopBack12ip address 202.106.0.100 255.255.255.255#ospf 1import-route directarea 0.0.0.0network 1.1.1.0 0.0.0.3network 202.106.0.0 0.0.0.255#user-interface con 0user-interface vty 0 4user-interface vty 16 20#return<Huawei>
模拟运营商配置 telecom；
<Huawei>dis cu #sysname Huawei#aaaauthentication-scheme defaultauthorization-scheme defaultaccounting-scheme defaultdomain defaultdomain default_adminlocal-user admin password cipher OOCM4m($F4ajUn1vMEIBNUw#local-user admin service-type http#firewall zone Localpriority 16#interface Ethernet0/0/0#interface Ethernet0/0/1#interface Serial0/0/0link-protocol ppp#interface Serial0/0/1link-protocol ppp#interface Serial0/0/2link-protocol ppp#interface Serial0/0/3link-protocol ppp#interface GigabitEthernet0/0/0ip address 1.1.1.2 255.255.255.252#interface GigabitEthernet0/0/1#interface GigabitEthernet0/0/2ip address 20.1.1.1 255.255.255.252#interface GigabitEthernet0/0/3#wlan#interface NULL0#interface LoopBack1ip address 219.141.140.10 255.255.255.255#ospf 1import-route directarea 0.0.0.0network 1.1.1.0 0.0.0.3#nqa test-instance test 1test-type icmpdestination-address ipv4 1.1.1.1frequency 5probe-count 1start now#user-interface con 0user-interface vty 0 4user-interface vty 16 20#return<Huawei>
模拟故障；修改unicom的 interface GigabitEthernet0/0/1端口配置，使其互联不可达，但链路状态依然up。
故障前路由表状态；
0.0.0.0/0 Static 60 0RD 10.1.1.1 GigabitEthernet0/0/010.1.1.0/30 Direct 0 0 D 10.1.1.2 GigabitEthernet0/0/010.1.1.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/010.1.1.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/010.16.0.0/30 Direct 0 0 D 10.16.0.1 GigabitEthernet0/0/210.16.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/210.16.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/220.1.1.0/30 Direct 0 0 D 20.1.1.2 GigabitEthernet0/0/120.1.1.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/120.1.1.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/1127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.0.0/23 Static 60 0RD 10.16.0.2 GigabitEthernet0/0/2202.106.0.30/32 Static 60 0RD 10.1.1.1 GigabitEthernet0/0/0219.141.140.10/32 Static 60 0RD 20.1.1.1 GigabitEthernet0/0/1255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
故障后路由表状态；
0.0.0.0/0 Static 150 0RD 20.1.1.1 GigabitEthernet0/0/110.1.1.0/30 Direct 0 0 D 10.1.1.2 GigabitEthernet0/0/010.1.1.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/010.1.1.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/010.16.0.0/30 Direct 0 0 D 10.16.0.1 GigabitEthernet0/0/210.16.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/210.16.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/220.1.1.0/30 Direct 0 0 D 20.1.1.2 GigabitEthernet0/0/120.1.1.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/120.1.1.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/1127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.0.0/23 Static 60 0RD 10.16.0.2 GigabitEthernet0/0/2202.106.0.30/32 Static 60 0RD 10.1.1.1 GigabitEthernet0/0/0219.141.140.10/32 Static 60 0RD 20.1.1.1 GigabitEthernet0/0/1255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
配置验证：
display ip routing-table #用于查看当前设备的路由表状态
display nqa results test-instance test LT #用于验证NQA的状态
转载至：华为QUIDWAY系列路由器的负载均衡配置 - 走看看
