HCNA-17 Smart Link与Monitor Link
HCNA-17 Smart Link与Monitor Link1、 配置Smart Link先在S1上创建Smart Link组1，再开启Smart Link组功能<Huawei>system-viewsysnames1smart-link group 1//创建Smart-link 组1smart-linkenable//开启Smart-link功能quit注意：在配置Smart Link时，需要在运行Smart Link的接口下关闭生成树协议；port-groupgroup-member GigabitEthernet 0/0/2 GigabitEthernet 0/0/3stpdisable//关闭STP功能quit进入到Smart Link组1下，配置GE 0/0/2为主接口，GE 0/0/3为备份接口。smart-link group 1portGigabitEthernet 0/0/2 master//配置为主接口portGigabitEthernet 0/0/3 slave//配置为备份接口displaysmart-link group 1//查看Smart-link 组1状态Smart Linkgroup 1 information :Smart Link group was enabledThere is no Load-BalanceThere is no protected-vlan reference-instanceDeviceID: 4c1f-cc80-6934Member Role State Flush Count Last-Flush-Time---------------------------------------------------------------------- GigabitEthernet0/0/2 MasterActive 0 0000/00/00 00:00:00 UTC+00:00 GigabitEthernet0/0/3 SlaveInactive 0 0000/00/00 00:00:00 UTC+00:00查看下来：GE 0/0/2角色是(Master)主接口，状态是(Active)活动的；GE 0/0/3角色是(Slave)备份接口，状态是(inactive)不活动的。模拟故障，切断GE 0/0/2接口再查看Smart-link 组1状态。interfaceGigabitEthernet 0/0/2shutdown//关闭接口quitdisplaysmart-link group 1Smart Linkgroup 1 information :Smart Link group was enabledThere is no Load-BalanceThere is no protected-vlan reference-instanceDeviceID: 4c1f-cc80-6934Member Role State Flush Count Last-Flush-Time ---------------------------------------------------------------------- GigabitEthernet0/0/2 MasterInactive 0 0000/00/0000:00:00 UTC+00:00 GigabitEthernet0/0/3 SlaveActive 0 0000/00/00 00:00:00 UTC+00:00查看到GE 0/0/2 (Master)为不活动；(Slave)为活动。检察回切功能；interface GigabitEthernet 0/0/2undoshutdown//恢复接口quitdisplaysmart-link group 1Smart Linkgroup 1 information :Smart Link group was enabledThere is no Load-BalanceThere is no protected-vlan reference-instanceDeviceID: 4c1f-cc80-6934Member Role State Flush Count Last-Flush-Time ---------------------------------------------------------------------- GigabitEthernet0/0/2 MasterInactive 0 0000/00/0000:00:00 UTC+00:00 GigabitEthernet0/0/3 SlaveActive 0 0000/00/00 00:00:00 UTC+00查看下来，角色状态没有任何变化，为了确保网络稳定GE 0/0/2恢复接口后角色状态仍然是inactive说明Smart-link默认不具备抢占原来Active功能；需要手工配置回切功能：smart-linkgroup 1restoreenable//恢复开启timerwtr 30//配置等待恢复时间30秒quitdisplaysmart-link group 1Smart Linkgroup 1 information :Smart Link group was enabledWtr-time is: 30 sec.There is no Load-BalanceThere is no protected-vlan reference-instanceDeviceID: 4c1f-cc80-6934Member Role State Flush Count Last-Flush-Time ---------------------------------------------------------------------- GigabitEthernet0/0/2 MasterActive 0 0000/00/00 00:00:00 UTC+00:00 GigabitEthernet0/0/3 SlaveInactive 0 0000/00/00 00:00:00 UTC+00:0030秒后GE 0/0/1 角色状态回切成功!由于Smart-link无法感知上游设备故障，下面测试关闭S2 GE0/0/1接口后的Smart-link group 1状态。<Huawei>system-viewsysnames2interfaceGigabitEthernet 0/0/1shutdownquit 查看S1 Smart-link group 1状态displaysmart-link group 1Smart Linkgroup 1 information :Smart Link group was enabledWtr-time is: 30 sec.There is no Load-BalanceThere is no protected-vlan reference-instanceDeviceID: 4c1f-cc80-6934Member Role State Flush Count Last-Flush-Time ---------------------------------------------------------------------- GigabitEthernet0/0/2 MasterActive 0 0000/00/00 00:00:00 UTC+00:00 GigabitEthernet0/0/3 SlaveInactive 0 0000/00/00 00:00:00 UTC+00手功制造了S2 GE0/0/1故障，但S1却没有感知，仍然把GE0/0/2做为活动接口。通过配置Monitor Link来监控上行接口，当上游设备接口出现故障时，让S1的Smart Link组完成切换。monitor-linkgroup 1//创建Monitor-Link组1portGigabitEthernet 0/0/1 uplink//配置GE 0/0/1 为上行接口portGigabitEthernet 0/0/2 downlink//配置GE 0/0/2 为下行接口quit 查看S1 smart-link group 1状态displaysmart-link group 1Smart Linkgroup 1 information :Smart Link group was enabledWtr-time is: 30 sec.There is no Load-BalanceThere is no protected-vlan reference-instanceDeviceID: 4c1f-cc80-6934Member Role State Flush Count Last-Flush-Time ---------------------------------------------------------------------- GigabitEthernet0/0/2 MasterInactive 0 0000/00/0000:00:00 UTC+00:00 GigabitEthernet0/0/3 SlaveActive0 0000/00/0000:00:00 UTC+00:00角色状态已经切换，下面配置monitor-link组1回切，然后恢复S2 GE0/0/1查看是否正常回切。monitor-linkgroup 1//进入monitor-link组1timerrecover-time 10//配置恢复时间 10秒quit quitundoshutdown完成。
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