华为 BGP/MPLS VP#实验

今天药忘吃喽~ 2023-01-03 05:58 130阅读 0赞

哈喽，大家好！我是[艺博东][Link 1] ，是一个思科出身、专注于华为的网工；好了，话不多说，我们直接进入正题。

### 文章目录 ###

*   *   *  一、拓扑
         *  二、基础配置与分析

由于特殊原因，所以把“N”字母替换为“\#”符号。

### 一、拓扑 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70]

### 二、基础配置与分析 ###

1、将骨干网络打通IGP  
2、配置公网的LSP隧道，PE，P设备的loopack的主机路由建立LSP  
3、PE之间配置MP-IBGP邻居关系(可以通过RR简化MP-IBGP全互联邻居关系)  
4、VP\#业务接入配置，在PE上创建VPN实例，接入用户私网路由

**IS-IS**

AR2

[Huawei]sysname AR2
    [AR2]int l0
    [AR2-LoopBack0]ip address  2.2.2.2 32
    [AR2-LoopBack0]int g0/0/0
    [AR2-GigabitEthernet0/0/0]ip address  10.1.23.2 24
    [AR2-GigabitEthernet0/0/0]q
    [AR2]isis 
    [AR2-isis-1]network-entity 12.0001.0000.0000.0002.00
    [AR2-isis-1]is-level level-2
    [AR2-isis-1]int g0/0/0
    [AR2-GigabitEthernet0/0/0]isis enable 
    [AR2-GigabitEthernet0/0/0]int l0
    [AR2-LoopBack0]isis enable 
    [AR2-LoopBack0]q
    [AR2]int g0/0/1
    [AR2-GigabitEthernet0/0/1]ip address  10.1.12.2 24

AR3

[Huawei]sysname AR3
    [AR3]int l0
    [AR3-LoopBack0]ip address  3.3.3.3 32
    [AR3-LoopBack0]int g0/0/0
    [AR3-GigabitEthernet0/0/0]ip address  10.1.34.3 24
    [AR3-GigabitEthernet0/0/0]int g0/0/1
    [AR3-GigabitEthernet0/0/1]ip address 10.1.23.3 24
    [AR3-GigabitEthernet0/0/1]q
    [AR3]isis 
    [AR3-isis-1]network-entity 12.0001.0000.0000.0003.00
    [AR3-isis-1]is-level level-2
    [AR3-isis-1]int l0
    [AR3-LoopBack0]isis enable 
    [AR3-LoopBack0]int g0/0/0
    [AR3-GigabitEthernet0/0/0]isis enable 
    [AR3-GigabitEthernet0/0/0]int g0/0/1
    [AR3-GigabitEthernet0/0/1]isis enable 
    [AR3-GigabitEthernet0/0/1]q

AR4

[Huawei]sysname AR4
    [AR4]int l0
    [AR4-LoopBack0]ip address  4.4.4.4 32
    [AR4-LoopBack0]int g0/0/1
    [AR4-GigabitEthernet0/0/1]ip address  10.1.34.4 24
    [AR4-GigabitEthernet0/0/1]q
    [AR4]isis 
    [AR4-isis-1]network-entity 12.0001.0000.0000.0004.00
    [AR4-isis-1]is-level level-2
    [AR4-isis-1]int l0
    [AR4-LoopBack0]isis enable 
    [AR4-LoopBack0]q
    [AR4]int g0/0/1
    [AR4-GigabitEthernet0/0/1]isis enable 
    [AR4-GigabitEthernet0/0/1]int g0/0/0
    [AR4-GigabitEthernet0/0/1q
    [AR4]int g0/0/0
    [AR4-GigabitEthernet0/0/0]ip address  10.1.45.4 24

\[AR3\]dis isis peer

![在这里插入图片描述][20210108113421339.png]

**MPLS**

AR2

[AR2]mpls lsr-id 2.2.2.2
    [AR2]mpls
    [AR2-mpls]mpls ldp
    [AR2-mpls-ldp]int g0/0/0
    [AR2-GigabitEthernet0/0/0]mpls
    [AR2-GigabitEthernet0/0/0]mpls ldp

AR3、AR4配置类似

\[AR3\]dis mpls ldp session  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 1]

\[AR3\]dis mpls lsp  
![在这里插入图片描述][20210108114448788.png]  
**BGP**

AR3

[AR3]bgp 100
    [AR3-bgp]peer 2.2.2.2 as-number 100
    [AR3-bgp]peer 2.2.2.2 connect-interface  LoopBack 0
    [AR3-bgp]peer 2.2.2.2 next-hop-local
    [AR3-bgp]peer 4.4.4.4 as-number 100
    [AR3-bgp]peer 4.4.4.4 connect-interface  LoopBack 0
    [AR3-bgp]peer 4.4.4.4 next-hop-local
    [AR3-bgp]peer 2.2.2.2 reflect-client 
    [AR3-bgp]peer 4.4.4.4 reflect-client 
    [AR3-bgp]ipv4-family vp#v4
    [AR3-bgp-af-vp#v4]peer 2.2.2.2 enable 
    [AR3-bgp-af-vp#v4]peer 2.2.2.2 reflect-client 
    [AR3-bgp-af-vp#v4]peer 4.4.4.4 enable 
    [AR3-bgp-af-vp#v4]peer 4.4.4.4 reflect-client

AR2

[AR2]bgp 100	
    [AR2-bgp]peer 3.3.3.3 as-number 100
    [AR2-bgp]peer 3.3.3.3 connect-interface LoopBack 0
    [AR2-bgp]peer 3.3.3.3 next-hop-local
    [AR2-bgp]ipv4-family vp#v4
    [AR2-bgp-af-vp#v4]peer 3.3.3.3 enable

AR4

[AR4]bgp 100
    [AR4-bgp]peer 3.3.3.3 as-number 100
    [AR4-bgp]peer 3.3.3.3 connect-interface LoopBack 0
    [AR4-bgp]peer 3.3.3.3 next-hop-local
    [AR4-bgp]ipv4-family vp#v4
    [AR4-bgp-af-vp#v4]peer 3.3.3.3 enable

\[AR3\]dis bgp peer verbose  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 2]

**VP\#v4**

AR2

[AR2]bgp 100
    [AR2-bgp]ipv4-family unicast 
    [AR2-bgp-af-ipv4]undo peer 3.3.3.3 enable

AR3

[AR3]bgp 100
    [AR3-bgp]ipv4-family unicast 
    [AR3-bgp-af-ipv4]undo peer 2.2.2.2 enable 
    [AR3-bgp-af-ipv4]undo peer 4.4.4.4 enable

AR4

[AR4]bgp 100
    [AR4-bgp]ipv4-family unicast 
    [AR4-bgp-af-ipv4]undo peer 3.3.3.3 enable

查看vpnv4地址族的BGP邻居关系  
\[AR3\]dis bgp vp\#v4 all peer dis bgp

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 3]  
\[AR3\]dis bgp vp\#v4 all peer verbose  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 4]  
**VP\#业务接入配置**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 5]

AR2

[AR2]ip vpn-instance ybd
    [AR2-vpn-instance-ybd]route-distinguisher 10:1
    [AR2-vpn-instance-ybd-af-ipv4]vp#-target 100:1 both 
    [AR2]int g0/0/1
    [AR2-GigabitEthernet0/0/1]ip binding vp#-instance ybd
    [AR2-GigabitEthernet0/0/1]ip address  10.1.12.2 24

\[AR2\]dis ip routing-table vp\#-instance ybd  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 6]  
\[AR2\]ping -vp\#-instance ybd 10.1.12.1  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 7]  
**OSPF**

AR1

[AR1]ospf 1 router-id 1.1.1.1
    [AR1-ospf-1]a 0
    [AR1-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.0
    [AR1-ospf-1-area-0.0.0.0]network 10.1.12.1 0.0.0.0

AR2

[AR2]ospf 1 vp#-instance ybd
    [AR2-ospf-1]a 0
    [AR2-ospf-1-area-0.0.0.0]network 10.1.12.2 0.0.0.0

\[AR2\]dis ospf peer brief  
![在这里插入图片描述][20210108125141736.png]  
\[AR2\]dis ip routing-table vp\#-instance ybd  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 8]

AR1、AR2
    
    [AR1]int l10
    [AR1-LoopBack10]ip address 192.168.10.1 32
    
    [AR2]ip route-static vp#-instance ybd 192.168.10.0 24 10.1.12.1

AR4

[AR4]ip vp#-instance ybd6
    [AR4-vp#-instance-ybd6]route-distinguisher 10:2
    [AR4-vp#-instance-ybd6-af-ipv4]vp#-target 100:1 both 
    [AR4-vp#-instance-ybd6-af-ipv4]q
    [AR4-vp#-instance-ybd6]q
    [AR4]int g0/0/0
    [AR4-GigabitEthernet0/0/0]ip binding vp#-instance ybd6
    [AR4-GigabitEthernet0/0/0]ip address 10.1.45.4 24
    [AR4-GigabitEthernet0/0/0]q
    [AR4]rip 1 vp#-instance ybd6
    [AR4-rip-1]version 2
    [AR4-rip-1]network 10.0.0.0

AR5

[AR5]rip 1 
    [AR5-rip-1]version 2
    [AR5-rip-1]network 10.0.0.0
    [AR5-rip-1]network 192.168.2.0

\[AR4\]dis ip routing-table vp\#-instance ybd6  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 10]  
**VP\#业务接入配置**

vp\#-instacen ybd 路由 —> vp\#-instance vp\#v4 路由 —> vp\#-insance Ai vp\#v4 BGP路由

AR2

[AR2]bgp 100
    [AR2-bgp]ipv4-family vp#-instance ybd
    [AR2-bgp-ybd]import-route ospf 1
    [AR2-bgp-ybd]import-route static

\[AR2\]display bgp vp\#v4 all routing-table  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 11]  
在AR2的G0/0/0接口进行抓包

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 12]  
policy vp\#target 开启基于RT属性VP\#v4路由的过滤

1、如果本路由器没有VP\#实例业务接入，则丢弃所有vp\#v4路由  
2、如果本路由器存在VP\#实例业务接口，则对ert和本端所有VP\#实例的irt做匹配，如果ert没有和任何一个本端vp\#实例的irt匹配，则丢弃。

\[AR3-bgp\]dis bgp vp\#v4 all routing-table  
![在这里插入图片描述][202101081414392.png]  
没bgp vp\#v4路由

**RR上**

[AR3-bgp]ipv4-family vp#v4
    [AR3-bgp-af-vp#v4]undo policy vp#-target

\[AR3-bgp-af-vp\#v4\]dis bgp vp\#v4 all routing-table  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 13]  
\[AR4\]dis bgp vp\#v4 all routing-table  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 14]  
AR4已接收相应的路由。

\[AR4\]dis ip routing-table vp\#-instance ybd6 protocol bgp  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 15]  
最有路由。

AR4

[AR4]bgp 100
    [AR4-bgp]ipv4-family vp#-instance ybd6
    [AR4-bgp-ybd6]import-route rip 1
    
    [AR4-rip-1]import-route bgp

\[AR5\]dis ip routing-table protocol rip  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 16]  
\[AR4\]dis ip routing-table vp\#-instance ybd6

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 17]AR2

[AR2]ospf 
    [AR2-ospf-1]import-route bgp

\[AR2\]dis ip routing-table vp\#-instance ybd  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 18]  
\[AR1\]dis ip routing-table 192.168.2.5  
![在这里插入图片描述][20210108144649467.png]

下面说一下AR5的192.168.2.5是怎么访问AR1的192.168.1.1的路由。

AR5查找路由表192.168.1.1，发现下一跳是10.1.45.4  
然后![在这里插入图片描述][20210108145426802.png]  
然后根据AR4的接口下绑定的ybd6路由表，去查相关路由。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 19]  
\[AR4\]dis bgp vpnv4 vp\#-instance ybd6 routing-table 192.168.1.1  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 20]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 21]  
数据封装成![在这里插入图片描述][20210108150549992.png]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 22]  
出去的标签是1024

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 23]

然后数据封装成这样了![在这里插入图片描述][20210108150651155.png]

压入标签为2个。

然后AR4根据G0/0/1接口发出去，

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 24]  
RR 查找标签

![在这里插入图片描述][20210108151019755.png]  
2.2.2.2的进标签1024，出标签是3，然后进行弹出顶部标签，从G0/0/1接口发送出去。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 25]  
AR2收到后，查看lsp

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 26]

通过BGP协议得到的标签，收到的标签如果是1027的话，就属于ybd路由表进行转发的。

弹出标签  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 27]  
192.168.1.1属于ybd本地的报文

![在这里插入图片描述][20210108152202413.png]

从接口g0/0/1发出，下一跳是10.1.12.1。

反过来也是一样的。

创建一个telnet

AR5

[AR5]user-interface vty 0 4
    [AR5-ui-vty0-4]set authentication password cipher ybd666666
    [AR5-ui-vty0-4]user privilege level 15

telnet -a 192.168.1.1 192.168.2.5

![在这里插入图片描述][20210108152928986.png]

模拟内网冲突的场景，路由冲突的时候怎么区分？

**拓扑**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 28]

本地路由一样是可以通过VP\#实例来进行区分的。

RD：区分实例，标记路由，只在本地有效，区分不同站点的相同路由；  
RT：对路由进行控制，控制路由的导入与导出。

注意：可以是相同的DR的

AR2

[AR2]int g0/0/2
    [AR2-GigabitEthernet0/0/2]ip address 10.1.26.2 24
    [AR2]ip vp#-instance ybd99
    [AR2-vpn-instance-ybd99]route-distinguisher 20:3
    [AR2-vpn-instance-ybd99]vp#-target 200:1 both 
    [AR2]int g0/0/2	
    [AR2-GigabitEthernet0/0/2]ip binding vp#-instance ybd99
    [AR2-GigabitEthernet0/0/2]ip address 10.1.26.2 24
    
    [AR2]isis 10 vp#-instance ybd99
    [AR2-isis-10]is-level level-2
    [AR2-isis-10]network-entity 12.0099.0000.0000.0002.00
    [AR2-isis-10]int g0/0/2
    [AR2-GigabitEthernet0/0/2]isis enable 10

AR6

[Huawei]sysname AR6
    [AR6]int g0/0/0
    [AR6-GigabitEthernet0/0/0]ip address 10.1.26.6 24
    [AR6-LoopBack0]ip address 192.168.1.1 32
    
    [AR6]isis
    [AR6-isis-1]network-entity 12.0099.0000.0000.0006.00
    [AR6-isis-1]is-level level-2
    [AR6-isis-1]int g0/0/0
    [AR6-GigabitEthernet0/0/0]isis enable 
    [AR6-GigabitEthernet0/0/0]int l0
    [AR6-LoopBack0]isis enable 
    
    [AR2]bgp 100
    [AR2-bgp]ipv4-family vp#-instance ybd99
    [AR2-bgp-ybd99]import-route isis 10

\[AR6\]dis isis peer  
![在这里插入图片描述][20210108160258852.png]  
\[AR2\]dis isis peer vp\#-instance ybd99  
![在这里插入图片描述][20210108160405897.png]

AR4

[AR4]ip vp#-instance ybd666
    [AR4-vp#-instance-ybd666]route-distinguisher 20:3
    [AR4-vp#-instance-ybd666-af-ipv4]vp#-target 200:1 both 
    [AR4-vp#-instance-ybd666-af-ipv4]int g0/0/2
    [AR4-GigabitEthernet0/0/2]ip binding vp#-instance ybd666
    [AR4-GigabitEthernet0/0/2]ip address  10.1.47.4 24
    
    [AR4]bgp 100
    [AR4-bgp]ipv4-family vp#-instance ybd666
    [AR4-bgp-ybd666]peer 10.1.47.7 as 64523

华为设备当将BGP路由引入到IGP时，只将EBGP路由引入。

AR7

[Huawei]sysname AR7
    [AR7]int l0
    [AR7-LoopBack0]ip address 192.168.10.1 32
    [AR7-LoopBack0]int g0/0/0
    [AR7-GigabitEthernet0/0/0]ip address 10.1.47.7 24
    
    [AR7]bgp 64523
    [AR7-bgp]peer 10.1.47.4 as 100
    [AR7-bgp]network 192.168.10.1 32

\[AR4\]dis bgp vp\#v4 all peer  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 29]

[AR2]isis 10
    [AR2-isis-10]import-route  bgp

\[AR4\]dis bgp vpnv4 all routing-table![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 30]

RD、RT不一样。

\[AR2\]dis mpls lsp  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 31]

192.168.10.1 PING测 192.168.1.1  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 32]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 33]  
已学到192.168.1.1/32的路由，下一跳是10.1.47.4；

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 34]  
然后根据AR4的接口下绑定的ybd666路由表，去查找相关的路由。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 35]

由以上输出结果可知，下一跳是2.2.2.2。

\[AR4\]dis bgp vpnv4 vp\#-instance ybd666 routing-table 192.168.1.1

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 36]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 37]

压入公网标签1024  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 38]

![在这里插入图片描述][20210108170013536.png]  
弹出标签

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 39]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 40]

通过BGP协议得到的标签，收到的标签如果是1037的话，就属于ybd99路由表进行转发的。

192.168.1.1属于ybd99本地的报文

![在这里插入图片描述][20210108170354787.png]  
有以上输出结果可知，下一跳是10.1.26.6。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hZRDY5Ng_size_16_color_FFFFFF_t_70 41]

> 温故而知新，可以为师矣。

--------------------

欢迎访问我的易百纳技术社区文章《华为 BGP/MPLS VP\#》  
[https://www.ebaina.com/articles/140000005374][https_www.ebaina.com_articles_140000005374]

--------------------

![在这里插入图片描述][2021010718321225.gif_pic_center]

好了这期就到这里了，如果你喜欢这篇文章的话，请点赞评论分享收藏，如果你还能点击关注，那真的是对我最大的鼓励。谢谢大家，下期见！

[Link 1]: https://ybd99.blog.csdn.net/
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[https_www.ebaina.com_articles_140000005374]: https://www.ebaina.com/articles/140000005374
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