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S7700单框合并为集群系统操作指导
特别声明
本文档仅作为使用指导，其内容依据实验室环境编写。提供的内容具有一般性的指导意义，并不确保涵盖所有型号产品的所有使用场景。因版本、设备型号差异可能造成手册中提供的内容与用户使用的设备界面不一致。请以用户设备界面的信息为准，本文不再针对前述情况造成的差异一一说明。
本文档仅提供集群合并必须的步骤，其他和配置相关的步骤不做详细介绍。
前提条件
- 该操作适用于集群卡集群和业务口集群。在两台单框设备合并为集群系统之前，两台单框设备的硬件和软件都已经满足可集群的要求。如果是集群卡集群，集群卡和集群线缆已经准备完成；如果是业务口集群，支持业务口集群的业务板和集群线缆已经准备完成。
- 单框设备使能集群功能重启后，接口下的配置会丢失，所以在使能集群之前，请先备份配置文件。
组网需求
两台汇聚层的框式交换机通过VRRP和STP实现网关备份。为了简化配置，要将两台框式交换机合并为逻辑上的一个集群系统。
如图1-1所示，汇聚层的S1和S2是两台单框设备，现将S1和S2合并为集群系统，从而简化配置，方便维护和管理。
两台单框设备合并为集群系统时，主要配置变更点有：
- 汇聚层部署的VRRP网关备份协议不再需要，配置删除。
- 接入层部署的STP破环协议不再需要，配置删除。
- 接入层、汇聚层和核心层的链路变更为Eth-Trunk，相关接口配置需要变更，包括基本的VLAN配置、QoS和ACL配置等。
在原组网中，接入层的流量通过STP和VRRP负载分担在多条链路上，如图1所示，一部分流量通过S1转发，一部分流量通过S2转发。
图1-2 原流量转发示意图
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合并操作步骤
- 通过命令shutdown汇聚层交换机S2的上行和下行端口来切换STP和VRRP状态，使S2从网络中隔离，所有流量通过S1转发，如图1-3所示。
- 备份S2的配置文件。因为单框设备使能集群功能重启后，接口编号会从三维格式变为四维格式，接口下的配置会丢失。
- 配置S2为集群状态。
- 业务口集群的操作步骤
- 把S2下电，安装业务板，然后将S2上电启动。
- 配置集群连接方式及集群优先级。
<S2> system-view [S2] set css mode lpu [S2] set css priority 200 //配置集群优先级为200，保证在两台交换机同时启动后S2仍然被选举为主交换机 [S2] display css status saved //查看保存的集群配置信息是否正确 Current Id Saved Id CSS Enable CSS Mode Priority Master Force ------------------------------------------------------------------------------ 1 1 Off LPU 200 On
- 将业务口配置为集群口。假设业务口XGE1/0/1、XGE1/0/2、XGE2/0/1、XGE2/0/2为集群口。
[S2] interface css-port 1 [S2-css-port1] port interface xgigabitethernet 1/0/1 to xgigabitethernet 1/0/2 enable [S2-css-port1] quit [S2] interface css-port 2 [S2-css-port2] port interface xgigabitethernet 2/0/1 to xgigabitethernet 2/0/2 enable [S2-css-port2] quit
- 使能集群功能。
[S2] css enable Warning: The CSS configuration will take effect only after the system is rebooted. The next CSS mode is LPU. Reboot now? [Y/N]:y
- 设备启动后，查看S2的集群状态。如下显示表示S2已切换为集群状态。
<S2> display device Chassis 1 (Master Switch) S7712's Device status: Slot Sub Type Online Power Register Status Role ------------------------------------------------------------------------------- 1 - ES0D0X12SA00 Present PowerOn Registered Normal NA 2 - ES0D0X12SA00 Present PowerOn Registered Normal NA 13 - ES1D2SRUE000 Present PowerOn Registered Normal Master 14 - ES1D2SRUE000 Present PowerOn Registered Normal Slave PWR1 - - Present PowerOn Registered Normal NA PWR2 - - Present PowerOn Registered Normal NA CMU1 - EH1D200CMU00 Present PowerOn Registered Normal Master FAN1 - - Present PowerOn Registered Normal NA FAN2 - - Present PowerOn Registered Normal NA FAN3 - - Present PowerOn Registered Normal NA FAN4 - - Present PowerOn Registered Normal NA
- 集群卡集群的操作步骤
- 把S2下电，安装集群卡，将S2上电启动。
- 配置集群优先级。
<S2> system-view [S2] set css priority 200 //配置集群优先级为200，保证在两台交换机同时启动后S2仍然被选举为主交换机 [S2] display css status saved //查看配置是否正确 Current Id Saved Id CSS Enable CSS Mode Priority Master Force ------------------------------------------------------------------------------ 1 1 Off CSS card 200 On
- 使能集群功能。
[S2] css enable Warning: The CSS configuration will take effect only after the system is rebooted. The next CSS mode is CSS card. Reboot now? [Y/N]:y
- 设备启动后，查看S2的集群状态。如下显示表示S2已切换为集群状态。
<S2> display device Chassis 1 (Master Switch) S7712's Device status: Slot Sub Type Online Power Register Status Role ------------------------------------------------------------------------------- 1 - ES0D0X12SA00 Present PowerOn Registered Normal NA 9 - ES1D2S08SX1E Present PowerOn Registered Normal NA 12 - ES0D0X12SA00 Present PowerOn Registered Normal NA 13 - ES1D2SRUE000 Present PowerOn Registered Normal Master 1 ES1D2VS04000 Present PowerOn Registered Normal NA 14 - ES1D2SRUE000 Present PowerOn Registered Normal Slave 1 ES1D2VS04000 Present PowerOn Registered Normal NA PWR1 - - Present PowerOn Registered Normal NA PWR2 - - Present PowerOn Registered Normal NA CMU1 - EH1D200CMU00 Present PowerOn Registered Normal Master FAN1 - - Present PowerOn Registered Normal NA FAN2 - - Present PowerOn Registered Normal NA FAN3 - - Present PowerOn Registered Normal NA FAN4 - - Present PowerOn Registered Normal NA
- 原S2变为CSS-1单框集群，修改CSS-1单框集群的配置，也可以在S1合并完成后再配置，提前配置可以减少流量的丢失。图1-4 单框集群示意图
- 将CSS-1的上行接口XGE1/4/0/1和XGE1/4/0/2绑定为Eth-Trunk，并把原接口下的配置移到Eth-Trunk接口下。
例如：原接口下的配置如下（上行连接核心层的接口）。
# interface XGigabitEthernet4/0/1 undo portswitch ip address 192.168.4.2 255.255.255.0 # interface XGigabitEthernet4/0/2 port link-type trunk port trunk allow-pass vlan 100 200 #
按照如下步骤修改配置。
<S2> system-view [S2] sysname CSS [CSS] interface eth-trunk 20 [CSS-Eth-Trunk20] trunkport xgigabitethernet1/4/0/1 [CSS-Eth-Trunk20] ip address 192.168.4.2 255.255.255.0 [CSS-Eth-Trunk20] quit [CSS] interface eth-trunk 10 [CSS-Eth-Trunk10] trunkport xgigabitethernet1/4/0/2 [CSS-Eth-Trunk10] port link-type trunk [CSS-Eth-Trunk10] port trunk allow-pass vlan 100 200 [CSS-Eth-Trunk10] quit
- 修改核心层和接入层设备的配置，把物理接口绑定为Eth-Trunk。操作步骤和上面类似，这里不再赘述。
- 将CSS-1的VLANIF接口的IP地址修改为VRRP备份组的虚拟IP地址（用户网关地址）。
例如：原VLANIF接口下的配置如下。
# interface Vlanif100 ip address 10.1.10.1 255.255.255.0 vrrp vrid 1 virtual-ip 10.1.10.111 vrrp vrid 1 priority 120 # interface Vlanif200 ip address 10.1.20.1 255.255.255.0 vrrp vrid 2 virtual-ip 10.1.20.111 #
修改VLANIF接口的IP地址后，流量全部切换到CSS-1。
[CSS] interface vlanif 100 [CSS-Vlanif100] ip address 10.1.10.111 255.255.255.0 [CSS-Vlanif100] quit [CSS] interface vlanif 200 [CSS-Vlanif200] ip address 10.1.20.111 255.255.255.0 [CSS-Vlanif200] quit
- 在OSPF的路由域中，删除不需要的网段。
- 修改QoS和ACL绑定的接口，将原来绑定到物理接口的配置变更为绑定到Eth-Trunk接口。
- 修改CSS-1设备STP的优先级，使CSS-1成为所有VLAN的根交换机。
- 将CSS-1的上行接口XGE1/4/0/1和XGE1/4/0/2绑定为Eth-Trunk，并把原接口下的配置移到Eth-Trunk接口下。
- 通过命令undo shutdown打开CSS-1设备上的接口，验证CSS-1与接入层和核心层的二三层连通性。
- CSS-1与接入层、核心层的二三层转发正常后，将S1的端口shutdown，使S1从网络中隔离。图1-5 流量切换到集群系统示意图
- 把S1转换为集群状态。S1加入集群系统后，会使用集群系统的配置文件。
- 业务口集群的操作步骤
- 把S1下电，安装业务板，连接S1与CSS-1之间的集群线缆，将S1上电启动。
- 配置集群连接方式及集群ID，集群优先级使用缺省的1。
<S1> system-view [S1] set css mode lpu [S1] set css id 2 [S1] display css status saved //查看配置是否正确 Current Id Saved Id CSS Enable CSS Mode Priority Master Force ------------------------------------------------------------------------------ 1 2 Off LPU 1 On
- 将业务口配置为集群口。假设业务口XGE1/0/1、XGE1/0/2、XGE2/0/1、XGE2/0/2为集群口。
[S1] interface css-port 1 [S1-css-port1] port interface xgigabitethernet 1/0/1 to xgigabitethernet 1/0/2 enable [S1-css-port1] quit [S1] interface css-port 2 [S1-css-port2] port interface xgigabitethernet 2/0/1 to xgigabitethernet 2/0/2 enable [S1-css-port2] quit
- 使能集群功能，重启设备。
[S1] css enable Warning: The CSS configuration will take effect only after the system is rebooted. The next CSS mode is LPU. Reboot now? [Y/N]:y
- 设备启动后，查看集群状态，S1已经加入集群系统。
<CSS> display device Chassis 1 (Master Switch) S7712's Device status: Slot Sub Type Online Power Register Status Role ------------------------------------------------------------------------------- 1 - ES0D0X12SA00 Present PowerOn Registered Normal NA 2 - ES0D0X12SA00 Present PowerOn Registered Normal NA 13 - ES1D2SRUE000 Present PowerOn Registered Normal Master 14 - ES1D2SRUE000 Present PowerOn Registered Normal Slave PWR1 - - Present PowerOn Registered Normal NA PWR2 - - Present PowerOn Registered Normal NA CMU1 - EH1D200CMU00 Present PowerOn Registered Normal Master FAN1 - - Present PowerOn Registered Normal NA FAN2 - - Present PowerOn Registered Normal NA FAN3 - - Present PowerOn Registered Normal NA FAN4 - - Present PowerOn Registered Normal NA Chassis 2 (Standby Switch) S7712's Device status: Slot Sub Type Online Power Register Status Role ------------------------------------------------------------------------------- 1 - ES0D0X12SA00 Present PowerOn Registered Normal NA 2 - ES0D0X12SA00 Present PowerOn Registered Normal NA 13 - ES1D2SRUE000 Present PowerOn Registered Normal Master 14 - ES1D2SRUE000 Present PowerOn Registered Normal Slave PWR1 - - Present PowerOn Registered Normal NA PWR2 - - Present PowerOn Registered Normal NA CMU1 - EH1D200CMU00 Present PowerOn Registered Normal Master FAN1 - - Present PowerOn Registered Normal NA FAN2 - - Present PowerOn Registered Normal NA FAN3 - - Present PowerOn Registered Normal NA FAN4 - - Present PowerOn Registered Normal NA
- 集群卡集群的操作步骤
- 把S1下电，安装集群卡，连接S1与CSS-1之间的集群线缆，将S1上电启动。
- 配置集群ID，集群优先级使用缺省的1。
<S1> system-view [S1] set css id 2
- 使能集群功能，重启设备。
[S1] css enable Warning: The CSS configuration will take effect only after the system is rebooted. The next CSS mode is CSS card. Reboot now? [Y/N]:y
- 设备启动后，查看集群状态，S1已经加入集群系统。
<CSS> display device Chassis 1 (Master Switch) S7712's Device status: Slot Sub Type Online Power Register Status Role ------------------------------------------------------------------------------- 1 - ES0D0X12SA00 Present PowerOn Registered Normal NA 9 - ES1D2S08SX1E Present PowerOn Registered Normal NA 12 - ES0D0X12SA00 Present PowerOn Registered Normal NA 13 - ES1D2SRUE000 Present PowerOn Registered Normal Master 1 ES1D2VS04000 Present PowerOn Registered Normal NA 14 - ES1D2SRUE000 Present PowerOn Registered Normal Slave 1 ES1D2VS04000 Present PowerOn Registered Normal NA PWR1 - - Present PowerOn Registered Normal NA PWR2 - - Present PowerOn Registered Normal NA CMU1 - EH1D200CMU00 Present PowerOn Registered Normal Master FAN1 - - Present PowerOn Registered Normal NA FAN2 - - Present PowerOn Registered Normal NA FAN3 - - Present PowerOn Registered Normal NA FAN4 - - Present PowerOn Registered Normal NA Chassis 2 (Standby Switch) S7712's Device status: Slot Sub Type Online Power Register Status Role ------------------------------------------------------------------------------- 1 - ES0D0X12SA00 Present PowerOn Registered Normal NA 9 - ES1D2S08SX1E Present PowerOn Registered Normal NA 12 - ES0D0X12SA00 Present PowerOn Registered Normal NA 13 - ES1D2SRUE000 Present PowerOn Registered Normal Master 1 ES1D2VS04000 Present PowerOn Registered Normal NA 14 - ES1D2SRUE000 Present PowerOn Registered Normal Slave 1 ES1D2VS04000 Present PowerOn Registered Normal NA PWR1 - - Present PowerOn Registered Normal NA PWR2 - - Present PowerOn Registered Normal NA CMU1 - EH1D200CMU00 Present PowerOn Registered Normal Master FAN1 - - Present PowerOn Registered Normal NA FAN2 - - Present PowerOn Registered Normal NA FAN3 - - Present PowerOn Registered Normal NA FAN4 - - Present PowerOn Registered Normal NA
- S1变更为CSS-2，成为堆叠系统的备框。图1-6 集群合并完成示意图
- 修改集群系统的配置，将CSS-2的接口加入Eth-Trunk。
- 将CSS-2的上行接口XGE2/4/0/1和XGE2/4/0/2加入Eth-Trunk。
[CSS] interface eth-trunk 20 [CSS-Eth-Trunk20] trunkport xgigabitethernet2/4/0/1 [CSS-Eth-Trunk20] quit [CSS] interface eth-trunk 10 [CSS-Eth-Trunk10] trunkport xgigabitethernet2/4/0/2 [CSS-Eth-Trunk10] quit
- 修改核心层和接入层设备的配置，把物理接口加入Eth-Trunk。操作步骤和上面类似，这里不再赘述。
- 将CSS-2的上行接口XGE2/4/0/1和XGE2/4/0/2加入Eth-Trunk。
- 通过命令undo shutdown放开CSS-2的接口，检查集群系统与核心层、接入层的二三层转发是否正常。此时两台设备合并为集群系统的操作就完成了，合并后的组网图如图1-7所示。
- 删除CSS上VRRP的配置。
[CSS] interface vlanif 100 [CSS-Vlanif100] undo vrrp vrid 1 [CSS-Vlanif100] quit [CSS] interface vlanif 200 [CSS-Vlanif200] undo vrrp vrid 2 [CSS-Vlanif200] quit
