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NE20E-S V800R012C00SPC300 配置指南 - 局域网与城域网接入 04
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配置基于VLAN的BPDU Tunnel示例

配置基于VLAN的BPDU Tunnel示例

本示例中，PE设备常作为汇聚设备。当PE设备上的汇聚接口上同时收到来自不同的用户报文时，为了区分不同的用户，在CE设备上针对不同的用户分配不同VLAN ID实现基于VLAN的BPDU（Bridge Protocol Data Unit） Tunnel。

组网需求

如图15-5所示，CE设备和PE设备相连，CE的BPDU报文需要透传PE之间的运营商网络。对于PE的每个接口而言，由于是汇聚接口，PE接收到CE的BPDU报文需要携带Tag以区分不同的用户。此时可以配置基于VLAN的BPDU Tunnel，使得：

  • VLAN100中的设备可以共同完成生成树计算。

  • VLAN200中的设备可以共同完成生成树计算。

本例采用设备角色相同的配置方法：CE和PE设备都为customer类型的设备，默认的BPDU报文的目的MAC地址为0180-C200-0000。PE不能透传CE发送来的BPDU报文，PE设备因此需要使能BPDU Tunnel功能。

图15-5 配置基于VLAN的BPDU Tunnel组网图

本例中interface1，interface2，interface3分别代表GE0/1/1，GE0/1/2，GE0/1/3。



配置思路

采用如下的思路配置基于VLAN的BPDU Tunnel：

  1. 使能CE设备和PE设备的生成树计算功能。

  2. 配置CE发送到PE的BPDU报文带有指定的Tag值。

  3. 去使能PE上CE侧接口的生成树计算功能，配置PE能够透明传输BPDU报文。

  4. 配置PE的运营商网络侧接口允许VLAN100和VLAN200的报文通过。

  5. 配置P的普通二层转发功能。允许PE之间的报文能被在运营商网络中传输。

数据准备

为完成此配置例，需准备如下的数据：

  • CE发送到PE的BPDU报文的Tag值。

  • PE和CE各个接口所属的VLAN ID值。

操作步骤

  1. 将PE和CE的接口转换成二层接口

    对于接口已经是二层接口的设备，不需要执行此步配置。

    使用portswitch命令，将图15-5中PE设备和CE设备的所有接口都转换成二层接口。具体配置方法请参考配置文件。

  2. 使能CE和PE设备的生成树计算功能

    # 配置CE1。

    [~CE1] stp enable
    [*CE1] commit

    # 配置CE2。

    [~CE2] stp enable
    [*CE2] commit

    # 配置CE3。

    [~CE3] stp enable
    [*CE3] commit

    # 配置CE4。

    [~CE4] stp enable
    [*CE4] commit

    # 配置PE1。

    [~PE1] stp enable
    [*PE1] commit

    # 配置PE2。

    [~PE2] stp enable
    [*PE2] commit

  3. 配置CE1与CE2发送到PE的BPDU报文带Tag100。配置CE3与CE4发送到PE的BPDU报文带Tag200

    # 配置CE1。

    [~CE1] vlan 100
    [*CE1-vlan100] commit
    [~CE1-vlan100] quit
    [~CE1] interface gigabitethernet 0/1/1
    [~CE1-GigabitEthernet0/1/1] port trunk allow-pass vlan 100
    [*CE1-GigabitEthernet0/1/1] stp bpdu vlan 100
    [*CE1-GigabitEthernet0/1/1] commit

    # 配置CE2。

    [~CE2] vlan 100
    [*CE2-vlan100] commit
    [~CE2-vlan100] quit
    [~CE2] interface gigabitethernet 0/1/1
    [~CE2-GigabitEthernet0/1/1] port trunk allow-pass vlan 100
    [*CE2-GigabitEthernet0/1/1] stp bpdu vlan 100
    [*CE2-GigabitEthernet0/1/1] commit

    # 配置CE3。

    [~CE3] vlan 200
    [*CE3-vlan200] commit
    [~CE3-vlan200] quit
    [~CE3] interface gigabitethernet 0/1/1
    [~CE3-GigabitEthernet0/1/1] port trunk allow-pass vlan 200
    [*CE3-GigabitEthernet0/1/1] stp bpdu vlan 200
    [*CE3-GigabitEthernet0/1/1] commit

    # 配置CE4。

    [~CE4] vlan 200
    [*CE4-vlan200] commit
    [~CE4-vlan200] quit
    [~CE4] interface gigabitethernet 0/1/1
    [~CE4-GigabitEthernet0/1/1] port trunk allow-pass vlan 200
    [*CE4-GigabitEthernet0/1/1] stp bpdu vlan 200
    [*CE4-GigabitEthernet0/1/1] commit

  4. 配置PE替换接收到CE的BPDU报文的MAC地址

    # 配置PE1。

    [~PE1] bpdu-tunnel stp group-mac 0100-5e00-0011
    [*PE1] commit

    # 配置PE2。

    [~PE2] bpdu-tunnel stp group-mac 0100-5e00-0011
    [*PE2] commit

  5. 配置PE的接口，使得CE的BPDU报文通过PE汇聚后透明传输到P

    # 配置PE1。

    [~PE1] vlan 100
    [*PE1-vlan100] commit
    [~PE1-vlan100] quit
    [~PE1] vlan 200
    [*PE1-vlan200] commit
    [~PE1-vlan200] quit
    [~PE1] interface gigabitethernet 0/1/3
    [~PE1-GigabitEthernet0/1/3] port trunk allow-pass vlan 100 200
    [*PE1-GigabitEthernet0/1/3] commit
    [~PE1-GigabitEthernet0/1/3] quit
    [~PE1] interface gigabitethernet 0/1/1
    [~PE1-GigabitEthernet0/1/1] port trunk allow-pass vlan 100
    [*PE1-GigabitEthernet0/1/1] bpdu-tunnel stp vlan 100
    [*PE1-GigabitEthernet0/1/1] stp disable
    [*PE1-GigabitEthernet0/1/1] commit
    [~PE1-GigabitEthernet0/1/1] quit
    [~PE1] interface gigabitethernet 0/1/2
    [~PE1-GigabitEthernet0/1/2] port trunk allow-pass vlan 200
    [*PE1-GigabitEthernet0/1/2] bpdu-tunnel stp vlan 200
    [*PE1-GigabitEthernet0/1/2] stp disable
    [*PE1-GigabitEthernet0/1/2] commit
    [~PE1-GigabitEthernet0/1/2] quit

    # 配置PE2。

    [~PE2] vlan 100
    [*PE2-vlan100] commit
    [~PE2-vlan100] quit
    [~PE2] vlan 200
    [*PE2-vlan200] commit
    [~PE2-vlan200] quit
    [~PE2] interface gigabitethernet 0/1/3
    [~PE2-GigabitEthernet0/1/3] port trunk allow-pass vlan 100 200
    [*PE2-GigabitEthernet0/1/3] commit
    [~PE2-GigabitEthernet0/1/3] quit
    [~PE2] interface gigabitethernet 0/1/1
    [~PE2-GigabitEthernet0/1/1] port trunk allow-pass vlan 100
    [*PE2-GigabitEthernet0/1/1] bpdu-tunnel stp vlan 100
    [*PE2-GigabitEthernet0/1/1] stp disable
    [*PE2-GigabitEthernet0/1/1] commit
    [~PE2-GigabitEthernet0/1/1] quit
    [~PE2] interface gigabitethernet 0/1/2
    [~PE2-GigabitEthernet0/1/2] port trunk allow-pass vlan 200
    [*PE2-GigabitEthernet0/1/2] bpdu-tunnel stp vlan 200
    [*PE2-GigabitEthernet0/1/2] stp disable
    [*PE2-GigabitEthernet0/1/2] commit
    [~PE2-GigabitEthernet0/1/2] quit

  6. 配置P的普通二层转发功能，并允许来自PE的VLAN100和VLAN200的报文通过 

    [~P] vlan 100
    [*P-vlan100] commit
    [~P-vlan100] quit
    [~P] vlan 200
    [*P-vlan200] commit
    [~P-vlan200] quit
    [~P] interface gigabitethernet 0/1/2
    [~P-GigabitEthernet0/1/2] port trunk allow-pass vlan 100 200
    [*P-GigabitEthernet0/1/2] commit
    [~P-GigabitEthernet0/1/2] quit
    [~P] interface gigabitethernet 0/1/1
    [~P-GigabitEthernet0/1/1] port trunk allow-pass vlan 100 200
    [*P-GigabitEthernet0/1/1] commit
    [~P-GigabitEthernet0/1/1] quit

  7. 检查配置结果

    配置完成后，在CE1和CE2设备上执行display stp命令可以查看MSTP的根桥。CE1和CE2之间完成生成树计算功能后，CE1上的GE0/1/1为根（Root）端口，CE2上的GE0/1/1为指定（Designated）端口。

    [~CE1] display stp
    -------[CIST Global Info][Mode MSTP]-------
CIST Bridge         :32768.00e0-fc12-3457
Bridge Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
Active Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 19
CIST Root/ERPC      :32768.00e0-fc12-3459 / 199999
CIST RegRoot/IRPC   :32768.00e0-fc12-3457 / 0
CIST RootPortId     :128.82
BPDU-Protection     :disabled
TC or TCN received  :2
TC count per hello  :0
STP Converge Mode   :Normal
Time since last TC received :0 days 3h:53m:43s
Number of TC        :1
Last TC occurred    :GigabitEthernet0/1/1
----[Port17(GigabitEthernet0/1/1)][FORWARDING]----
 Port Protocol       :enabled
 Port Role           :CIST Root Port
 Port Priority       :128
 Port Cost(Dot1T )   :Config=auto / Active=199999
 Desg. Bridge/Port   :32768.00e0-fc12-3459 / 128.82
 Port Edged          :Config=disabled / Active=disabled
 Point-to-point      :Config=auto / Active=true
 Transit Limit       :3 packets/hello-time
 Protection Type     :None
 Port STP Mode       :MSTP
 Port Protocol Type  :Config=auto / Active=dot1s
 BPDU Encapsulation  :Config=stp / Active=stp
 PortTimes           :Hello 2s MaxAge 20s FwDly 15s RemHop 20
 TC or TCN send      :2
 TC or TCN received  :0
 BPDU Sent           :7
          TCN: 0, Config: 0, RST: 0, MST: 7
 BPDU Received       :105
          TCN: 0, Config: 0, RST: 0, MST: 105
    [~CE2] display stp
    -------[CIST Global Info][Mode MSTP]-------
CIST Bridge         :32768.00e0-fc12-3459
Bridge Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
Active Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 19
CIST Root/ERPC      :32768.00e0-fc12-3459 / 0
CIST RegRoot/IRPC   :32768.00e0-fc12-3459 / 0
CIST RootPortId     :0.0
BPDU-Protection     :disabled
TC or TCN received  :1
TC count per hello  :0
STP Converge Mode   :Normal
Time since last TC received :0 days 5h:29m:6s   
Number of TC        :1
Last TC occurred    :GigabitEthernet0/1/1
----[Port17(GigabitEthernet0/1/1)][FORWARDING]----
 Port Protocol       :enabled
 Port Role           :CIST Designated Port
 Port Priority       :128
 Port Cost(Dot1T )   :Config=auto / Active=199999
 Desg. Bridge/Port   :32768.00e0-fc12-3459 / 128.82
 Port Edged          :Config=disabled / Active=disabled
 Point-to-point      :Config=auto / Active=true
 Transit Limit       :3 packets/hello-time
 Protection Type     :None
 Port STP Mode       :MSTP
 Port Protocol Type  :Config=auto / Active=dot1s
 BPDU Encapsulation  :Config=stp / Active=stp
 PortTimes           :Hello 2s MaxAge 20s FwDly 15s RemHop 20
 TC or TCN send      :2
 TC or TCN received  :0
 BPDU Sent           :237
          TCN: 0, Config: 0, RST: 0, MST: 237
 BPDU Received       :120
          TCN: 0, Config: 0, RST: 0, MST: 120

    在CE3和CE4设备上执行display stp命令可以检查MSTP的根。CE3和CE4之间完成了生成树计算功能。CE3上的GE0/1/1为根（Root）端口，CE4上的GE0/1/1为指定（Designated）端口。

    [~CE3] display stp
    -------[CIST Global Info][Mode MSTP]-------
CIST Bridge         :32768.00e0-fc12-3458
Bridge Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
Active Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 19
CIST Root/ERPC      :32768.00e0-fc12-3456 / 199999
CIST RegRoot/IRPC   :32768.00e0-fc12-3458 / 0
CIST RootPortId     :128.82
BPDU-Protection     :disabled
TC or TCN received  :4
TC count per hello  :0
STP Converge Mode   :Normal
Time since last TC received :0 days 3h:57m:0s   
Number of TC        :1
Last TC occurred    :GigabitEthernet0/1/1
----[Port17(GigabitEthernet0/1/1)][FORWARDING]----
 Port Protocol       :enabled
 Port Role           :CIST Root Port
 Port Priority       :128
 Port Cost(Dot1T )   :Config=auto / Active=199999
 Desg. Bridge/Port   :32768.00e0-fc12-3456 / 128.82
 Port Edged          :Config=disabled / Active=disabled
 Point-to-point      :Config=auto / Active=true
 Transit Limit       :3 packets/hello time 
 Protection Type     :None
 Port STP Mode       :MSTP
 Port Protocol Type  :Config=auto / Active=dot1s
 BPDU Encapsulation  :Config=stp / Active=stp
 PortTimes           :Hello 2s MaxAge 20s FwDly 15s RemHop 20
 TC or TCN send      :2
 TC or TCN received  :0
 BPDU Sent           :17
          TCN: 0, Config: 0, RST: 0, MST: 17
 BPDU Received       :105
          TCN: 0, Config: 0, RST: 0, MST: 105
    [~CE4] display stp
    -------[CIST Global Info][Mode MSTP]-------
CIST Bridge         :32768.00e0-fc12-3456
Bridge Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
Active Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 19
CIST Root/ERPC      :32768.00e0-fc12-3456 / 0
CIST RegRoot/IRPC   :32768.00e0-fc12-3456 / 0
CIST RootPortId     :0.0
BPDU-Protection     :disabled
TC or TCN received  :2
TC count per hello  :0
STP Converge Mode   :Normal
Time since last TC received :0 days 5h:33m:17s
Number of TC        :1
Last TC occurred    :GigabitEthernet0/1/1
----[Port17(GigabitEthernet0/1/1)][FORWARDING]----
 Port Protocol       :enabled
 Port Role           :CIST Designated Port
 Port Priority       :128
 Port Cost(Dot1T )   :Config=auto / Active=199999
 Desg. Bridge/Port   :32768.00e0-fc12-3456 / 128.82
 Port Edged          :Config=disabled / Active=disabled
 Point-to-point      :Config=auto / Active=true
 Transit Limit       :3 packets/hello time
 Protection Type     :None
 Port STP Mode       :MSTP
 Port Protocol Type  :Config=auto / Active=dot1s
 BPDU Encapsulation  :Config=stp / Active=stp
 PortTimes           :Hello 2s MaxAge 20s FwDly 15s RemHop 20
 TC or TCN send      :2
 TC or TCN received  :0
 BPDU Sent           :11
          TCN: 0, Config: 0, RST: 0, MST: 11
 BPDU Received       :105
          TCN: 0, Config: 0, RST: 0, MST: 105

配置文件

  • CE1的配置文件

    #
     sysname CE1
    #
     vlan batch 100
    #
     stp enable
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100
     stp bpdu vlan 100
    #
    return

  • CE2的配置文件

    #
     sysname CE2
    #
     vlan batch 100
    #
     stp enable
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100
     stp bpdu vlan 100
    #
    return

  • CE3的配置文件

    #
     sysname CE3
    #
     vlan batch 200
    #
     stp enable
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 200
     stp bpdu vlan 200
    #
    return

  • CE4的配置文件

    #
     sysname CE4
    #
     vlan batch 200
    #
     stp enable
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 200
     stp bpdu vlan 200
    #
    Return

  • PE1的配置文件

    #
     sysname PE1
    #
     vlan batch 100 200
    #
     bpdu-tunnel stp group-mac 0100-5e00-0011
    #
     stp enable
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100
     bpdu-tunnel stp vlan 100
     stp disable
    #
    interface GigabitEthernet0/1/2
     undo shutdown
     portswitch
     port trunk allow-pass vlan 200
     bpdu-tunnel stp vlan 200
     stp disable
    #
    interface GigabitEthernet0/1/3
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100 200
    #
    return

  • P的配置文件

    #
     sysname P
    #
     vlan batch 100 200
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100 200
    #
    interface GigabitEthernet0/1/2
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100 200
    #
    return

  • PE2的配置文件

    #
     sysname PE2
    #
     vlan batch 100 200
    #
     bpdu-tunnel stp group-mac 0100-5e00-0011
    #
     stp enable
    #
    interface GigabitEthernet0/1/1
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100
     bpdu-tunnel stp vlan 100
     stp disable
    #
    interface GigabitEthernet0/1/2
     undo shutdown
     portswitch
     port trunk allow-pass vlan 200
     bpdu-tunnel stp vlan 200
     stp disable
    #
    interface GigabitEthernet0/1/3
     undo shutdown
     portswitch
     port trunk allow-pass vlan 100 200
    #
    return
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更新时间：2020-07-02

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