思科VSS配置
一、將2臺VSS65從單機箱模式切換到虛擬機箱模式
基本步驟：
1.分別在交換機1、2上配置SSO高可用性協議：
2.配置虛擬交換機的域（Virtual Switch Domain and Switch Numbers）
3.配置兩臺交換機之間的VSL 端口(利用引擎上的2個萬兆光口進行連接)
4.轉換機箱變成虛擬交換機模式
詳細配置：
1.分別在交換機1、2上配置SSO高可用性協議：
Switch1:
Step 1
Switch-1(config)# redundancy
Enters redundancy configuration mode.
Step 2
Switch-1(config-red)# mode sso
Configures SSO. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode.
Step 3
Switch-1(config-red)# exit
Switch-1# show running-config
Switch-1# show redundancy states //Displays the operating redundancy mode.
Switch2:
Switch-2(config)# redundancy
Switch-2(config-red)# mode sso
Switch-2(config-red)# exit
Switch-2# show running-config
Switch-2# show redundancy states
2.配置虛擬交換機的域（Virtual Switch Domain and Switch Numbers）
Switch1:
Step 1
Switch-1(config)# switch virtual domain 100
Step 2
Switch-1(config-vs-domain)# switch 1
Step 3
Switch-1(config-vs-domain)# exit
Switch2:
Switch-2(config)# switch virtual domain 100
Switch-2(config-vs-domain)# switch 2
Switch-2(config-vs-domain)# exit
3.配置兩臺交換機之間的VSL 端口(利用引擎上的2個萬兆光口進行連接)
1）配置channel
Switch1:
Step 1
Switch-1(config)# interface port-channel 10
Step 2
Switch-1(config-if)# switch virtual link 1
Step 3
Switch-1(config-if)# no shutdown //Activates the port channel.
Step 4
Switch-1(config-if)# exit
Switch2:
Switch-2(config)# interface port-channel 20
Switch-2(config-if)# switch virtual link 2
Switch-2(config-if)# no shutdown
Switch-2(config-if)# exit
2）把引擎上的萬兆端口加入channel（假設引擎在slot3，一定先確認port-channel已加入switch virtual link)
Switch1:
Switch-1(config)# interface range tengigabitethernet 3/1-2
Switch-1(config-if)# channel-group 10 mode on
Switch-1(config-if)# no shutdown
Switch2:
Step 1
Switch-2(config)# interface range tengigabitethernet 3/1-2
Switch-2(config-if)# channel-group 20 mode on
Switch-2(config-if)# no shutdown
4.轉換機箱變成虛擬交換機模式
1)先查看機箱的PFC模式，保證2個機箱相同
Step 1
Switch-1# show platform hardware pfc mode
Ensures that the PFC operating mode matches on both chassis, to ensure that the VSS comes up in SSO redundancy mode.
Step 2
Switch-2# show platform hardware pfc mode
Step 3
Switch-1(config)# platform hardware vsl pfc mode pfc3c
(Optional) Sets the PFC operating mode to PFC3C on Chassis A.
Step 4
Switch-2(config)# platform hardware vsl pfc mode pfc3c
(Optional) Sets the PFC operating mode to PFC3C on Chassis B.
2)切換機箱模式
Switch1:
Switch-1# switch convert mode virtual
Converts Switch 1 to virtual switch mode.
After you enter the command, you are prompted to confirm the action. Enter yes.
The system creates a converted configuration file, and saves the file to the RP bootflash.
Switch2:
Switch-2# switch convert mode virtual
5.查看VSS信息
Router# show switch virtual
Displays the virtual switch domain number, and the switch number and role for each of the chassis.
Router# show switch virtual role
Displays the role, switch number, and priority for each of the chassis in the VSS.
Router# show switch virtual link
Displays the status of the VSL.
The following example shows the information output from these commands:
Router# show switch virtual
Switch mode : Virtual Switch
Virtual switch domain number : 100
Local switch number : 1
Local switch operational role: Virtual Switch Active
Peer switch number : 2
Peer switch operational role : Virtual Switch Standby
Router# show switch virtual role
Switch Switch Status Preempt Priority Role Session ID
Number Oper(Conf) Oper(Conf) Local Remote
------------------------------------------------------------------
LOCAL 1 UP FALSE(N) 100(100) ACTIVE 0 0
REMOTE 2 UP FALSE(N) 100(100) STANDBY 8158 1991
In dual-active recovery mode: No
Router# show switch virtual link
VSL Status: UP
VSL Uptime: 4 hours, 26 minutes
VSL SCP Ping: Pass OK
VSL ICC (Ping): Pass
VSL Control Link: Te 1/5/1
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