组网需求：

       公司接入3条宽带，其中两台为拨号ADSL，一条固定IP专线，实现上网业务，不同部门电脑划分不同VLAN，通过策略路由实现不同部门走不同线路访问外部网络，同时3条接入宽带实现联动，当其中一条出现故障时自动切换到另一条线路，当链接恢复正常后自动切换回来。


组网图如下：

H3C MSR3020路由NQA实例配置_第1张图片

MSR路由主要配置：

#
 version 7.1.059, Release 0306P81
#
 sysname CORE-RT01
#
 telnet server enable
#
 qos carl 1 source-ip-address range 192.168.61.1 to 192.168.61.253 per-address  #QOS限流
 qos carl 2 source-ip-address range 192.168.11.1 to 192.168.11.253 per-address #同上，但实际效果不理想，建议上专业流控设备
#
 port-security enable
#
 dialer-group 1 rule ip permit
 dialer-group 2 rule ip permit
#
 dhcp enable
#
 dns proxy enable
#
 password-recovery enable
#
vlan 1
#
policy-based-route wan permit node 1   #策略路由配置
 if-match acl 3000   #避免内网网段互访的数据，直接匹配了策略路由出去了，影响正常通信

#
policy-based-route wan permit node 2
 if-match acl 2000
 apply default-next-hop 14.XXX.XXX.888 track 1
#
policy-based-route wan permit node 3
 if-match acl 2001
 apply output-interface Dialer1
#
policy-based-route wan permit node 4
 if-match acl 2002
 apply output-interface Dialer2
#
policy-based-route wan permit node 5    #策略路由最后要加一条空节点允许其他数据流通过

#
nqa entry wan1 1        #NQA配置
 type icmp-echo
  destination ip 14.XXX.XXX.888   #网关地址
  frequency 10000
  next-hop ip 14.XXX.XXX.888    #网关地址

  probe count 5
  probe timeout 1000
  reaction 1 checked-element probe-fail threshold-type consecutive 6 action-type trigger-only
#
 nqa schedule wan1 1 start-time now lifetime forever  #使能测试组的启动时间和持续时间并设置为永久
#
controller Cellular0/0
#
controller Cellular0/1
#
interface Aux0
#
interface Dialer1      #ADSL线路1      
 description INT ADSL 100M
 mtu 1492
 ppp chap password cipher $c$3$vKmoKSbbB8XKfxtafJ785ifLNBk/Oo1YHmud
 ppp chap user [email protected]
 ppp ipcp dns admit-any
 ppp ipcp dns request
 ppp pap local-user [email protected] password cipher $c$3$beaDKJmpTvuChge0eU8J1Bj0T+JpG8aUUMlZ
 dialer bundle enable
 dialer-group 1
 ip address ppp-negotiate
 tcp mss 1024
 nat outbound 2003
#
interface Dialer2    #ADSL线路2

 description CAIWU ADSL 100M
 mtu 1492
 ppp chap password cipher $c$3$4qsrevZ+kIoKDuF3zwCvpmucdqAEDN5S43CL
 ppp chap user [email protected]
 ppp ipcp dns admit-any
 ppp ipcp dns request
 ppp pap local-user [email protected] password cipher $c$3$c2+0dxIWmqO7FqnD72dYCvGXSrXh0+b/R4/I
 dialer bundle enable
 dialer-group 2
 dialer timer idle 0     #需注意多条ADSL线路拨号时需添加此参数，MSR 7.0版本与5.0命令有区别

 ip address ppp-negotiate
 tcp mss 1024
 nat outbound 2003
#
interface NULL0
#
interface GigabitEthernet0/0   #连接SW

 port link-mode route
 description LAN link to HW-CORE-SW
 combo enable copper
 ip address 192.168.201.1 255.255.255.0
 packet-filter 2017 inbound
 qos car inbound carl 1 cir 500 cbs 31250 ebs 0 green pass red discard yellow pass
 qos car inbound carl 2 cir 500 cbs 31250 ebs 0 green pass red discard yellow pass
 nat hairpin enable   #内网客户端通过公网地址访问内部服务器

 ip policy-based-route wan  #将策略路由应用在内网接口
#
interface GigabitEthernet0/1
 port link-mode route
 tcp mss 1024
#
interface GigabitEthernet0/2
 port link-mode route
 description WAN 10M DSL
 ip address 14.xxx.xxx.xxx 255.255.255.252
 tcp mss 1024
 nat outbound 2003
 nat server protocol tcp global current-interface 21 inside 192.168.10.14 21  #相关端口映射应用
 nat server protocol tcp global current-interface 25 inside 192.168.10.168 25
 nat server protocol tcp global current-interface 80 inside 192.168.10.14 80
 nat server protocol tcp global current-interface 110 inside 192.168.10.168 110
 nat server protocol tcp global current-interface 143 inside 192.168.10.168 143
 nat server protocol tcp global current-interface 5580 inside 192.168.10.14 8088
 nat server protocol tcp global current-interface 5581 inside 192.168.10.14 8081
#
interface GigabitEthernet6/0
 port link-mode route
 description WAN INT ADSL 100M
 nat outbound 2003
 pppoe-client dial-bundle-number 1
#
interface GigabitEthernet6/1
 port link-mode route
 description WAN CAIWU ADSL 100M
 nat outbound 2003
 pppoe-client dial-bundle-number 2
#
interface GigabitEthernet6/7
 port link-mode route
 combo enable copper
#
interface GigabitEthernet6/2
 port link-mode bridge
#
interface GigabitEthernet6/3
 port link-mode bridge
#              
interface GigabitEthernet6/4
 port link-mode bridge
#
interface GigabitEthernet6/5
 port link-mode bridge
#
interface GigabitEthernet6/6
 port link-mode bridge
 combo enable copper
#
 scheduler logfile size 16
#
line class aux
 user-role network-admin
#
line class tty
 user-role network-operator
#
line class vty
 user-role network-operator
#
line aux 0
 user-role network-admin
#
line vty 0 15
 authentication-mode scheme
 user-role network-admin
#
line vty 16 63
 user-role network-operator
#
 ip route-static 0.0.0.0 0 14.XXX.XXX.888 track 1  #默认路由指向下一跳网关
 ip route-static 0.0.0.0 0 Dialer1 preference 100
 ip route-static 0.0.0.0 0 Dialer2 preference 120
 ip route-static 192.168.10.0 24 192.168.201.254
 ip route-static 192.168.11.0 24 192.168.201.254
 ip route-static 192.168.16.0 24 192.168.201.254
 ip route-static 192.168.18.0 24 192.168.201.254
 ip route-static 192.168.61.0 24 192.168.201.254
#
acl basic 2000
 rule 0 permit source 192.168.10.0 0.0.0.255
 rule 1 permit source 192.168.11.0 0.0.0.255
 rule 2 permit source 192.168.18.0 0.0.0.255
#
acl basic 2001
 rule 0 permit source 192.168.61.0 0.0.0.255
#
acl basic 2002
 rule 0 permit source 192.168.16.0 0.0.0.255
#
acl basic 2003
 rule 0 permit
#
acl basic 2017                             #禁止部分IP访问外网
 description Deny ip link to Internet
 rule 0 deny source 192.168.10.23 0
 rule 1 deny source 192.168.10.5 0
 rule 2 deny source 192.168.10.7 0
 rule 199 permit
#
acl advanced 3000
 rule 0 permit ip source 192.168.0.0 0.0.255.255 destination 192.168.0.0 0.0.255.255  #增加一条ACL避免内网网段互访的数据，直接匹配了策略路由出去了，影响正常通信
#
domain system
#
 domain default enable system
#
user-group system
#              
local-user admin class manage
 password hash $h$6$ROvXv3DjylL9HE6p$53Ib+gCLOkKDY58w+mO03hy0xqy8rQS5xAsuX1HyJFGpPF0EYjxg/8CPhmUWIs4NrNWKM78PWr6QckQj98RdjQ==
 service-type telnet http https
 authorization-attribute user-role network-admin
#
 ip http enable
 ip https enable
#
 track 1 nqa entry wan1 1 reaction 1   #NQA关联 track 1 和 reaction 1

#
return


说明：以上加色字体为配置要点，由于考虑到成本问题，部分公司会选择ADSL接入作为备份链路，如果是多条固定IP宽带接入则设置多个NQA 实现即可，配置类似， 以上为工作小记。