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配置全局双链路备份示例（AC全局配置方式）
配置流程
WLAN不同的特性和功能需要在不同类型的模板下进行配置和维护，这些模板统称为WLAN模板，如域管理模板、射频模板、VAP模板、AP系统模板、AP有线口模板、WIDS模板、WDS模板。当用户在配置WLAN业务功能时，需要在对应功能的WLAN模板中进行参数配置，配置完成后，须将此模板引用到AP组或AP中，配置下发到AP，进而配置的功能在AP上生效。由于模板之间是存在各相互引用关系的，因此在用户配置过程中，需要提前了解各个模板之间存在的逻辑关系。模板的逻辑关系和基本配置流程请参见WLAN业务配置流程。
组网需求
某企业使用两台AP构建了无线局域网区域A，为用户提供WLAN上网服务。如图9-9所示，区域A的AP1和AP2直接连接交换机，企业采用双AC旁挂式部署，交换机上行通过出口路由接入Internet。现在企业希望采用双AC主备备份的方式提高无线用户的数据传输的可靠性。
表9-4 数据准备
| 项目 | 数据 |
|---|---|
AP管理VLAN |
VLAN100 |
STA业务VLAN |
VLAN101 |
DHCP服务器 |
Switch作为AP和STA的DHCP服务器 STA网关：10.10.11.1/24 AP网关：10.10.10.1/24 |
AP地址池 |
10.10.10.4～10.10.10.254/24 |
STA地址池 |
10.10.11.2～10.10.11.254/24 |
AC源接口 |
VLANIF100 |
主用AC |
AC1 本机优先级：0 |
备用AC |
AC2 本机优先级：1 |
AC1管理IP地址 |
VLANIF100接口：10.10.10.2/24 |
AC2管理IP地址 |
VLANIF100接口：10.10.10.3/24 |
AP组 |
|
SSID模板 |
|
安全模板 |
|
VAP模板 |
|
配置思路
- 配置AC1、AC2和其他网络设备实现网络互通。Switch作为DHCP Server为AP和STA分配IP地址。
- AC1作为主AC，在主AC上配置WLAN基本业务。
- AC2作为备AC，在备AC上配置WLAN基本业务，业务配置和AC1保持一致。
- 先后在主备AC上配置双链路备份功能。使能双链路备份时，会重启所有AP。双链路备份配置完成后、若任意主AC与AP间CAPWAP链路故障，备AC会替代此主AC管理AP继续工作。
配置注意事项
纯组播报文由于协议要求在无线空口没有ACK机制保障，且无线空口链路不稳定，为了纯组播报文能够稳定发送，通常会以低速报文形式发送。如果网络侧有大量异常组播流量涌入，则会造成无线空口拥堵。为了减小大量低速组播报文对无线网络造成的冲击，建议配置组播报文抑制功能。配置前请确认是否有组播业务，如果有，请谨慎配置限速值。
- 业务数据转发方式采用直接转发时，建议在直连AP的交换机接口上配置组播报文抑制。
- 业务数据转发方式采用隧道转发时，建议在AC的流量模板下配置组播报文抑制。
- 管理VLAN和业务VLAN不能配置为同一VLAN。
在配置多个VAP模板，且多个VAP模板共用同一个service-vlan的场景下，如果配置数据转发方式为tunnel模式，则需要启动service-vlan间的Proxy ARP功能。
操作步骤
- 配置Switch和AC，使AP和AC互通
# 在Switch上创建VLAN100和VLAN101，其中VLAN100用于WLAN的管理VLAN，VLAN101用于WLAN的业务VLAN。Switch连接AP的接口GE0/0/1和GE0/0/4配置为trunk类型接口，且PVID都为100，允许VLAN100和VLAN101的报文通过。配置Switch的接口GE0/0/2和GE0/0/3为trunk类型，允许VLAN100的报文通过。
<Huawei> system-view [Huawei] sysname Switch [Switch] vlan batch 100 101 [Switch] interface gigabitethernet 0/0/1 [Switch-GigabitEthernet0/0/1] port link-type trunk [Switch-GigabitEthernet0/0/1] port trunk pvid vlan 100 [Switch-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 to 101 [Switch-GigabitEthernet0/0/1] port-isolate enable [Switch-GigabitEthernet0/0/1] quit [Switch] interface gigabitethernet 0/0/4 [Switch-GigabitEthernet0/0/4] port link-type trunk [Switch-GigabitEthernet0/0/4] port trunk pvid vlan 100 [Switch-GigabitEthernet0/0/4] port trunk allow-pass vlan 100 to 101 [Switch-GigabitEthernet0/0/4] port-isolate enable [Switch-GigabitEthernet0/0/4] quit [Switch] interface gigabitethernet 0/0/2 [Switch-GigabitEthernet0/0/2] port link-type trunk [Switch-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 [Switch-GigabitEthernet0/0/2] quit [Switch] interface gigabitethernet 0/0/3 [Switch-GigabitEthernet0/0/3] port link-type trunk [Switch-GigabitEthernet0/0/3] port trunk allow-pass vlan 100 [Switch-GigabitEthernet0/0/3] quit
# 配置AC1连接Switch的接口Eth2/0/0加入VLAN100。
<Huawei> system-view [Huawei] sysname AC1 [AC1] vlan batch 100 [AC1-vlan100] quit [AC1] interface ethernet 2/0/0 [AC1-Ethernet2/0/0] port link-type trunk [AC1-Ethernet2/0/0] port trunk allow-pass vlan 100 [AC1-Ethernet2/0/0] quit
# 配置AC2连接Switch的接口Eth2/0/0加入VLAN100。
<Huawei> system-view [Huawei] sysname AC2 [AC2] vlan batch 100 [AC2-vlan100] quit [AC2] interface ethernet 2/0/0 [AC2-Ethernet2/0/0] port link-type trunk [AC2-Ethernet2/0/0] port trunk allow-pass vlan 100 [AC2-Ethernet2/0/0] quit
- 配置Switch的DHCP功能，为AP和STA分配IP地址
# 配置VLANIF100使用接口地址池为AP分配IP地址。
[Switch] dhcp enable [Switch] interface vlanif 100 [Switch-Vlanif100] ip address 10.10.10.1 255.255.255.0 [Switch-Vlanif100] dhcp select interface [Switch-Vlanif100] dhcp server excluded-ip-address 10.10.10.2 10.10.10.3 [Switch-Vlanif100] quit
# 配置VLANIF101使用接口地址池为STA分配IP地址。
[Switch] interface vlanif 101 [Switch-Vlanif101] ip address 10.10.11.1 255.255.255.0 [Switch-Vlanif101] dhcp select interface [Switch-Vlanif101] quit
- 配置AC1的WLAN基本业务
- 配置AP上线
# 创建AP组，用于将相同配置的AP都加入同一AP组中。
[AC1] wlan ac [AC1-wlan-view] ap-group name ap-group1 Info: This operation may take a few seconds. Please wait for a moment.done. [AC1-wlan-ap-group-ap-group1] quit# 创建域管理模板，在域管理模板下配置AC的国家码并在AP组下引用域管理模板。
[AC1-wlan-view] regulatory-domain-profile name domain1 [AC1-wlan-regulate-domain-domain1] country-code cn Info: The current country code is same with the input country code. [AC1-wlan-regulate-domain-domain1] quit [AC1-wlan-view] ap-group name ap-group1 [AC1-wlan-ap-group-ap-group1] regulatory-domain-profile domain1 Warning: Modifying the country code will clear channel, power and antenna gain configurations of the radio and reset the AP. Continu e?[Y/N]:y [AC1-wlan-ap-group-ap-group1] quit [AC1-wlan-view] quit
# 配置AC的源接口。
[AC1] interface Vlanif 100 [AC1-Vlanif100] ip address 10.10.10.2 255.255.255.0 [AC1-Vlanif100] quit [AC1] capwap source interface vlanif 100
# 在AC上离线导入AP，并将AP加入AP组“ap-group1”中。假设AP的MAC地址分别为60de-4476-e360和60de-4474-9640，并且根据AP的部署位置为AP配置名称，便于从名称上就能够了解AP的部署位置。例如MAC地址为60de-4476-e360的AP部署在1号区域，命名此AP为“area_1”，MAC地址为60de-4474-9640的AP部署在2号区域，命名此AP为“area_2”。ap auth-mode命令缺省情况下为MAC认证，如果之前没有修改其缺省配置，可以不用执行ap auth-mode mac-auth。
[AC1] wlan ac [AC1-wlan-view] ap auth-mode mac-auth [AC1-wlan-view] ap-id 0 ap-mac 60de-4476-e360 [AC1-wlan-ap-0] ap-name area_1 [AC1-wlan-ap-0] ap-group ap-group1 Warning: This operation may cause AP reset. If the country code changes, it will clear channel, power and antenna gain configuration s of the radio, Whether to continue? [Y/N]:y Info: This operation may take a few seconds. Please wait for a moment.. done. [AC1-wlan-ap-0] quit [AC1-wlan-view] ap-id 1 ap-mac 60de-4474-9640 [AC1-wlan-ap-1] ap-name area_2 [AC1-wlan-ap-1] ap-group ap-group1 Warning: This operation may cause AP reset. If the country code changes, it will clear channel, power and antenna gain configuration s of the radio, Whether to continue? [Y/N]:y Info: This operation may take a few seconds. Please wait for a moment.. done. [AC1-wlan-ap-1] quit
# 将AP上电后，当执行命令display ap all查看到AP的“State”字段为“nor”时，表示AP正常上线。
[AC1-wlan-view] display ap all Info: This operation may take a few seconds. Please wait for a moment.done. Total AP information: nor : normal [2] -------------------------------------------------------------------------------------------- ID MAC Name Group IP Type State STA Uptime -------------------------------------------------------------------------------------------- 0 60de-4476-e360 area_1 ap-group1 10.10.10.253 AP6010DN-AGN nor 0 1M:22S 1 60de-4474-9640 area_2 ap-group1 10.10.10.254 AP6010DN-AGN nor 0 5S -------------------------------------------------------------------------------------------- Total: 2 - 配置WLAN业务参数
# 创建名为“wlan-security”的安全模板，并配置安全策略。
举例中以配置WPA2+PSK+AES的安全策略为例，密码为“a1234567”，实际配置中请根据实际情况，配置符合实际要求的安全策略。
[AC1-wlan-view] security-profile name wlan-security [AC1-wlan-sec-prof-wlan-security] security wpa2 psk pass-phrase a1234567 aes [AC1-wlan-sec-prof-wlan-security] quit
# 创建名为“wlan-ssid”的SSID模板，并配置SSID名称为“wlan-net”。
[AC1-wlan-view] ssid-profile name wlan-ssid [AC1-wlan-ssid-prof-wlan-ssid] ssid wlan-net Warning: This action may cause service interruption. Continue?[Y/N]y Info: This operation may take a few seconds, please wait.done. [AC1-wlan-ssid-prof-wlan-ssid] quit
# 创建名为“wlan-vap”的VAP模板，配置业务数据转发模式、业务VLAN，并且引用安全模板和SSID模板。
[AC1-wlan-view] vap-profile name wlan-vap [AC1-wlan-vap-prof-wlan-vap] forward-mode direct-forward Warning: This action may cause service interruption. Continue?[Y/N]y Info: This operation may take a few seconds, please wait.done. [AC1-wlan-vap-prof-wlan-vap] service-vlan vlan-id 101 Info: This operation may take a few seconds, please wait.done. [AC1-wlan-vap-prof-wlan-vap] security-profile wlan-security Info: This operation may take a few seconds, please wait..done. [AC1-wlan-vap-prof-wlan-vap] ssid-profile wlan-ssid Info: This operation may take a few seconds, please wait..done. [AC1-wlan-vap-prof-wlan-vap] quit
# 配置AP组引用VAP模板，AP上射频0和射频1都使用VAP模板“wlan-vap”的配置。
[AC1-wlan-view] ap-group name ap-group1 [AC1-wlan-ap-group-ap-group1] vap-profile wlan-vap wlan 1 radio 0 Info: This operation may take a few seconds, please wait.done. [AC1-wlan-ap-group-ap-group1] vap-profile wlan-vap wlan 1 radio 1 Info: This operation may take a few seconds, please wait.done. [AC1-wlan-ap-group-ap-group1] quit
- 配置AP上线
- 配置AC2的WLAN基本业务
# AC2基本业务其他参数的配置请参考AC1的配置过程，除源接口地址外其他配置参数和AC1一样。
# 配置AC2的源接口。
[AC2] interface vlanif 100 [AC2-Vlanif100] ip address 10.10.10.3 255.255.255.0 [AC2-Vlanif100] quit [AC2] capwap source interface vlanif 100 [AC2] wlan ac
- 配置主用AC1和备用AC2双链路备份功能
# 在AC1上，配置备AC2的IP地址，AC1的优先级，用于双链路备份。全局使能双链路备份和回切功能，重启所有AP使双链路备份功能生效。
缺省情况下，双链路备份功能未使能，执行命令ac protect enable会提示重启所有AP。AP重启后，双链路备份功能开始生效。
若双链路备份功能已使能，此处再执行命令ac protect enable不会重启AP，需要在主AC上继续执行命令ap-reset重启AP，AP重启后，双链路备份功能开始生效。
[AC1-wlan-view] ac protect protect-ac 10.10.10.3 priority 0 Warning: Operation successful. It will take effect after AP reset. [AC1-wlan-view] undo ac protect restore disable Info: Protect restore has already enabled. [AC1-wlan-view] ac protect enable Warning: This operation maybe cause AP reset, continue?[Y/N]: y Info: This operation may take a few seconds. Please wait for a moment.done. Info: Capwap echo interval has changed to default value 25, capwap echo times to 3.
# 在AC2上，配置主用AC1的IP地址，AC2的优先级，用于双链路备份。[AC2-wlan-view] ac protect protect-ac 10.10.10.2 priority 1 [AC2-wlan-view] undo ac protect restore disable Info: Protect restore has already enabled. [AC2-wlan-view] ac protect enable Warning: This operation maybe cause AP reset, continue?[Y/N]: y Info: This operation may take a few seconds. Please wait for a moment.done. Info: Capwap echo interval has changed to default value 25, capwap echo times to 3.
# 提交配置。
[AC1-wlan-view] commit all Warning: Committing configuration may cause service interruption, continue?[Y/N]:y
[AC2-wlan-view] commit all Warning: Committing configuration may cause service interruption, continue?[Y/N]:y
- 验证配置结果
# 在主备AC上分别执行命令display ac protect，查看2台AC上双链路信息和优先级。
[AC1-wlan-view] display ac protect ------------------------------------------------------------ Protect state : enable Protect AC : 10.10.10.3 Priority : 0 Protect restore : enable Coldbackup kickoff station: disable ------------------------------------------------------------
[AC2-wlan-view] display ac protect ------------------------------------------------------------ Protect state : enable Protect AC : 10.10.10.2 Priority : 1 Protect restore : enable Coldbackup kickoff station: disable ------------------------------------------------------------
# 当AP与AC1的链路中断后，AC2切换为主AC，保证业务的稳定。
配置文件
Switch的配置文件
# sysname Switch # vlan batch 100 to 101 # dhcp enable # interface Vlanif100 ip address 10.10.10.1 255.255.255.0 dhcp select interface dhcp server excluded-ip-address 10.10.10.2 10.10.10.3 # interface Vlanif101 ip address 10.10.11.1 255.255.255.0 dhcp select interface # interface GigabitEthernet0/0/1 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 to 101 port-isolate enable group 1 # interface GigabitEthernet0/0/2 port link-type trunk port trunk allow-pass vlan 100 # interface GigabitEthernet0/0/3 port link-type trunk port trunk allow-pass vlan 100 # interface GigabitEthernet0/0/4 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 to 101 port-isolate enable group 1 # return
AC1的配置文件
# sysname AC1 # vlan batch 100 # interface Vlanif100 ip address 10.10.10.2 255.255.255.0 # interface Ethernet2/0/0 port link-type trunk port trunk allow-pass vlan 100 # capwap source interface vlanif100 # wlan ac ac protect enable protect-ac 10.10.10.3 security-profile name wlan-security security wpa2 psk pass-phrase %^%#m"tz0f>~7.[`^6RWdzwCy16hJj/Mc!,}s`X*B]}A%^%# aes ssid-profile name wlan-ssid ssid wlan-net vap-profile name wlan-vap service-vlan vlan-id 101 ssid-profile wlan-ssid security-profile wlan-security regulatory-domain-profile name domain1 ap-group name ap-group1 regulatory-domain-profile domain1 radio 0 vap-profile wlan-vap wlan 1 radio 1 vap-profile wlan-vap wlan 1 ap-id 0 type-id 19 ap-mac 60de-4476-e360 ap-sn 210235554710CB000042 ap-name area_1 ap-group ap-group1 ap-id 1 type-id 19 ap-mac 60de-4474-9640 ap-sn 210235419610D2000097 ap-name area_2 ap-group ap-group1 # return
AC2的配置文件
# sysname AC2 # vlan batch 100 # interface Vlanif100 ip address 10.10.10.3 255.255.255.0 # interface Ethernet2/0/0 port link-type trunk port trunk allow-pass vlan 100 # capwap source interface vlanif100 # wlan ac ac protect enable protect-ac 10.10.10.2 priority 1 security-profile name wlan-security security wpa2 psk pass-phrase %^%#m"tz0f>~7.[`^6RWdzwCy16hJj/Mc!,}s`X*B]}A%^%# aes ssid-profile name wlan-ssid ssid wlan-net vap-profile name wlan-vap service-vlan vlan-id 101 ssid-profile wlan-ssid security-profile wlan-security regulatory-domain-profile name domain1 ap-group name ap-group1 regulatory-domain-profile domain1 radio 0 vap-profile wlan-vap wlan 1 radio 1 vap-profile wlan-vap wlan 1 ap-id 0 type-id 19 ap-mac 60de-4476-e360 ap-sn 210235554710CB000042 ap-name area_1 ap-group ap-group1 ap-id 1 type-id 19 ap-mac 60de-4474-9640 ap-sn 210235419610D2000097 ap-name area_2 ap-group ap-group1 # return
