华为运营商级路由器配置示例 | 跨域L3VdPdNdv4 over SRv6 TE Policy
Posted 一个热爱编程的通信人
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了华为运营商级路由器配置示例 | 跨域L3VdPdNdv4 over SRv6 TE Policy相关的知识，希望对你有一定的参考价值。
组网需求
如图1所示：
- PE1和ASBR1属于AS 100，PE2和ASBR2属于AS 200，要求AS 100和AS 200内通过IS-IS协议达到IPv6网络互连的目的。
- PE1和ASBR1的IS-IS进程是1，都是Level-1设备；PE2和ASBR2的IS-IS进程是10，都是Level-1设备。
要求在PE1和PE2之间建立双向跨域SRv6 TE Policy路径，承载L3VPNv4业务。
图1 配置跨域L3VPNv4 over SRv6 TE Policy组网图
配置思路
- 使能PE1、PE2、ASBR1和ASBR2各接口的IPv6转发能力，配置各接口的IPv6地址。
- 在PE1、PE2、ASBR1和ASBR2上使能IS-IS，配置Level级别，指定网络实体。
- 在PE1和PE2上配置VPN实例。
- 在PE和CE之间建立EBGP对等体关系。
- 在PE上配置IS-IS发布SRv6 Locator路由，并且配置域内的静态End.X SID
- 在ASBR1和ASBR2上配置BGP EPEv6，配置ASBR之间的静态End.X SID。
- 在PE之间建立MP-EBGP对等体关系，利用对等体关系相互发送携带SID的BGP VPNv4路由。
- 在PE1和PE2上配置SRv6 TE Policy。
- 在PE1和PE2上配置隧道策略，引入私网流量。
操作步骤
1.使能各接口的IPv6转发能力，配置各接口的IPv6地址
# 配置PE1。PE2、ASBR1和ASBR2的配置过程与PE1类似，不再赘述，详情可参考配置文件。
<HUAWEI> system-view
[~HUAWEI] sysname PE1
[*HUAWEI] commit
[~PE1] interface gigabitethernet 1/0/0
[~PE1-GigabitEthernet1/0/0] ipv6 enable
[*PE1-GigabitEthernet1/0/0] ipv6 address 2001::1 96
[*PE1-GigabitEthernet1/0/0] quit
[*PE1] interface LoopBack 1
[*PE1-LoopBack1] ipv6 enable
[*PE1-LoopBack1] ipv6 address 1::1 128
[*PE1-LoopBack1] quit
[*PE1] commit2.配置IS-IS
# 配置PE1。
[~PE1] isis 1
[*PE1-isis-1] is-level level-1
[*PE1-isis-1] cost-style wide
[*PE1-isis-1] network-entity 10.0000.0000.0001.00
[*PE1-isis-1] ipv6 enable topology ipv6
[*PE1-isis-1] quit
[*PE1] interface gigabitethernet 1/0/0
[*PE1-GigabitEthernet1/0/0] isis ipv6 enable 1
[*PE1-GigabitEthernet1/0/0] quit
[*PE1] interface loopback1
[*PE1-LoopBack1] isis ipv6 enable 1
[*PE1-LoopBack1] commit
[~PE1-LoopBack1] quit# 配置ASBR1。
[~ASBR1] isis 1
[*ASBR1-isis-1] is-level level-1
[*ASBR1-isis-1] cost-style wide
[*ASBR1-isis-1] network-entity 10.0000.0000.0002.00
[*ASBR1-isis-1] ipv6 enable topology ipv6
[*ASBR1-isis-1] quit
[*ASBR1] interface gigabitethernet 1/0/0
[*ASBR1-GigabitEthernet1/0/0] isis ipv6 enable 1
[*ASBR1-GigabitEthernet1/0/0] quit
[*ASBR1] interface loopback1
[*ASBR1-LoopBack1] isis ipv6 enable 1
[*ASBR1-LoopBack1] commit
[~ASBR1-LoopBack1] quit# 配置ASBR2。
[~ASBR2] isis 10
[*ASBR2-isis-10] is-level level-1
[*ASBR2-isis-10] cost-style wide
[*ASBR2-isis-10] network-entity 10.0000.0000.0003.00
[*ASBR2-isis-10] ipv6 enable topology ipv6
[*ASBR2-isis-10] quit
[*ASBR2] interface gigabitethernet 1/0/0
[*ASBR2-GigabitEthernet1/0/0] isis ipv6 enable 10
[*ASBR2-GigabitEthernet1/0/0] quit
[*ASBR2] interface loopback1
[*ASBR2-LoopBack1] isis ipv6 enable 10
[*ASBR2-LoopBack1] commit
[~ASBR2-LoopBack1] quit# 配置PE2。
[~PE2] isis 10
[*PE2-isis-10] is-level level-1
[*PE2-isis-10] cost-style wide
[*PE2-isis-10] network-entity 10.0000.0000.0004.00
[*PE2-isis-10] ipv6 enable topology ipv6
[*PE2-isis-10] quit
[*PE2] interface gigabitethernet 1/0/0
[*PE2-GigabitEthernet1/0/0] isis ipv6 enable 10
[*PE2-GigabitEthernet1/0/0] quit
[*PE2] interface loopback1
[*PE2-LoopBack1] isis ipv6 enable 10
[*PE2-LoopBack1] commit
[~PE2-LoopBack1] quit配置完成后，可按如下指导检查IS-IS是否配置成功。
# 显示IS-IS邻居信息。以PE1为例。
[~PE1] display isis peer
Peer information for ISIS(1)
System Id Interface Circuit Id State HoldTime Type PRI
--------------------------------------------------------------------------------
0000.0000.0002* GE1/0/0 0000.0000.0002.01 Up 8s L1 64
Total Peer(s): 13.在PE设备上配置使能IPv4地址族的VPN实例，将CE接入PE
# 配置PE1。
[~PE1] ip vpn-instance vpna
[*PE1-vpn-instance-vpna] ipv4-family
[*PE1-vpn-instance-vpna-af-ipv4] route-distinguisher 100:1
[*PE1-vpn-instance-vpna-af-ipv4] vpn-target 111:1 both
[*PE1-vpn-instance-vpna-af-ipv4] quit
[*PE1-vpn-instance-vpna] quit
[*PE1] interface gigabitethernet 2/0/0
[*PE1-GigabitEthernet2/0/0] ip binding vpn-instance vpna
[*PE1-GigabitEthernet2/0/0] ip address 10.1.1.1 24
[*PE1-GigabitEthernet2/0/0] quit
[*PE1] commit# 配置PE2。
[~PE2] ip vpn-instance vpna
[*PE2-vpn-instance-vpna] ipv4-family
[*PE2-vpn-instance-vpna-af-ipv4] route-distinguisher 200:1
[*PE2-vpn-instance-vpna-af-ipv4] vpn-target 111:1 both
[*PE2-vpn-instance-vpna-af-ipv4] quit
[*PE2-vpn-instance-vpna] quit
[*PE2] interface gigabitethernet 2/0/0
[*PE2-GigabitEthernet2/0/0] ip binding vpn-instance vpna
[*PE2-GigabitEthernet2/0/0] ip address 10.2.1.1 24
[*PE2-GigabitEthernet2/0/0] quit
[*PE2] commit# 按图1配置各CE的接口IP地址，配置过程请参见后面的配置文件。
配置完成后，在PE设备上执行display ip vpn-instance verbose命令可以看到VPN实例的配置情况。各PE能ping通自己接入的CE。
4.在PE与CE之间建立EBGP对等体关系
# 配置CE1。
[~CE1] interface loopback 1
[*CE1-LoopBack1] ip address 11.11.11.11 32
[*CE1-LoopBack1] quit
[*CE1] bgp 65410
[*CE1-bgp] peer 10.1.1.1 as-number 100
[*CE1-bgp] network 11.11.11.11 32
[*CE1-bgp] quit
[*CE1] commit# 配置PE1。
[~PE1] bgp 100
[*PE1-bgp] router-id 1.1.1.1
[*PE1-bgp] ipv4-family vpn-instance vpna
[*PE1-bgp-vpna] peer 10.1.1.2 as-number 65410
[*PE1-bgp-vpna] import-route direct
[*PE1-bgp-vpna] commit
[~PE1-bgp-vpna] quit
[~PE1-bgp] quit# 配置CE2。
[~CE2] interface loopback 1
[*CE2-LoopBack1] ip address 22.22.22.22 32
[*CE2-LoopBack1] quit
[*CE2] bgp 65420
[*CE2-bgp] peer 10.2.1.1 as-number 100
[*CE2-bgp] network 22.22.22.22 32
[*CE2-bgp] quit
[*CE2] commit# 配置PE2。
[~PE2] bgp 200
[*PE2-bgp] router-id 4.4.4.4
[*PE2-bgp] ipv4-family vpn-instance vpna
[*PE2-bgp-vpna] peer 10.2.1.2 as-number 65420
[*PE2-bgp-vpna] import-route direct
[*PE2-bgp-vpna] commit
[~PE2-bgp-vpna] quit
[~PE2-bgp] quit配置完成后，在PE设备上执行display bgp vpnv4 vpn-instance peer命令，可以看到PE与CE之间的BGP对等体关系已建立，并达到Established状态。
以PE1与CE1的对等体关系为例：
[~PE1] display bgp vpnv4 vpn-instance vpna peer
BGP local router ID : 1.1.1.1
Local AS number : 100
VPN-Instance vpna, Router ID 1.1.1.1:
Total number of peers : 1 Peers in established state : 1
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.1.1.2 4 65410 11 9 0 00:06:37 Established 15.在PE上配置IS-IS发布SRv6 Locator路由，并且配置域内的静态End.X SID
# 配置PE1。
[~PE1] segment-routing ipv6
[*PE1-segment-routing-ipv6] encapsulation source-address 1::1
[*PE1-segment-routing-ipv6] locator as1 ipv6-prefix 10:: 64 static 32
[*PE1-segment-routing-ipv6-locator] opcode ::100 end-x interface GigabitEthernet1/0/0 nexthop 2001::2 no-flavor
[*PE1-segment-routing-ipv6-locator] quit
[*PE1-segment-routing-ipv6] quit
[*PE1] isis 1
[*PE1-isis-1] ipv6 enable topology ipv6
[*PE1-isis-1] segment-routing ipv6 locator as1 auto-sid-disable
[*PE1-isis-1] commit
[~PE1-isis-1] quit# 配置PE2。
[~PE2] segment-routing ipv6
[*PE2-segment-routing-ipv6] encapsulation source-address 4::4
[*PE2-segment-routing-ipv6] locator as1 ipv6-prefix 40:: 64 static 32
[*PE2-segment-routing-ipv6-locator] opcode ::200 end-x interface GigabitEthernet1/0/0 nexthop 2002::1 no-flavor
[*PE2-segment-routing-ipv6-locator] quit
[*PE2-segment-routing-ipv6] quit
[*PE2] isis 10
[*PE2-isis-10] ipv6 enable topology ipv6
[*PE2-isis-10] segment-routing ipv6 locator as1 auto-sid-disable
[*PE2-isis-10] commit
[~PE2-isis-10] quit执行命令display segment-routing ipv6 local-sid end-x forwarding查看SRv6的Local SID表信息。以PE1的显示为例：
[~PE1] display segment-routing ipv6 local-sid end-x forwarding
My Local-SID End.X Forwarding Table
-----------------------------------
SID : 10::100/128 FuncType : End.X
Flavor : --
LocatorName : as1 LocatorID: 1
ProtocolType: STATIC ProcessID: --
UpdateTime : 2021-08-30 01:49:44.292
NextHop : Interface : ExitIndex:
2001::2 GigabitEthernet1/0/0 0x0000000e
Total SID(s): 16.在ASBR1和ASBR2上配置BGP EPEv6，配置ASBR之间的静态End.X SID
# 配置ASBR1。
[~ASBR1] segment-routing ipv6
[*ASBR1-segment-routing-ipv6] encapsulation source-address 2::2
[*ASBR1-segment-routing-ipv6] locator as1 ipv6-prefix 20:: 64 static 32
[*ASBR1-segment-routing-ipv6-locator] opcode ::200 end-x interface GigabitEthernet1/0/0 nexthop 2001::1 no-flavor
[*ASBR1-segment-routing-ipv6-locator] quit
[*ASBR1-segment-routing-ipv6] quit
[*ASBR1] isis 1
[*ASBR1-isis-1] segment-routing ipv6 locator as1 auto-sid-disable
[*ASBR1-isis-1] ipv6 import-route bgp level-1
[*ASBR1-isis-1] commit
[~ASBR1-isis-1] quit
[~ASBR1] bgp 100
[*ASBR1-bgp] router-id 2.2.2.2
[*ASBR1-bgp] segment-routing ipv6 egress-engineering locator as1
[*ASBR1-bgp] peer 2020::2 as-number 200
[*ASBR1-bgp] peer 2020::2 ebgp-max-hop 255
[*ASBR1-bgp] peer 2020::2 egress-engineering srv6 static-sid no-flavor 20::100
[*ASBR1-bgp] ipv6-family unicast
[*ASBR1-bgp-af-ipv6] peer 2020::2 enable
[*ASBR1-bgp-af-ipv6] network 1:: 64
[*ASBR1-bgp-af-ipv6] network 10:: 64
[*ASBR1-bgp-af-ipv6] import-route direct
[*ASBR1-bgp-af-ipv6] quit
[*ASBR1-bgp] link-state-family unicast
[*ASBR1-bgp-af-ls] peer 2020::2 enable
[*ASBR1-bgp-af-ls] quit
[*ASBR1-bgp] quit
[*ASBR1] commit# 配置ASBR2。
[~ASBR2] segment-routing ipv6
[*ASBR2-segment-routing-ipv6] encapsulation source-address 3::3
[*ASBR2-segment-routing-ipv6] locator as1 ipv6-prefix 30:: 64 static 32
[*ASBR2-segment-routing-ipv6-locator] opcode ::100 end-x interface GigabitEthernet1/0/0 nexthop 2002::2 no-flavor
[*ASBR2-segment-routing-ipv6-locator] quit
[*ASBR2-segment-routing-ipv6] quit
[*ASBR2] isis 10
[*ASBR2-isis-10] segment-routing ipv6 locator as1 auto-sid-disable
[*ASBR2-isis-10] ipv6 import-route bgp level-1
[*ASBR2-isis-10] commit
[~ASBR2-isis-10] quit
[~ASBR2] bgp 200
[*ASBR2-bgp] router-id 3.3.3.3
[*ASBR2-bgp] segment-routing ipv6 egress-engineering locator as1
[*ASBR2-bgp] peer 2020::1 as-number 100
[*ASBR2-bgp] peer 2020::1 ebgp-max-hop 255
[*ASBR2-bgp] peer 2020::1 egress-engineering srv6 static-sid no-flavor 30::200
[*ASBR2-bgp] ipv6-family unicast
[*ASBR2-bgp-af-ipv6] peer 2020::1 enable
[*ASBR2-bgp-af-ipv6] network 4:: 64
[*ASBR2-bgp-af-ipv6] network 40:: 64
[*ASBR2-bgp-af-ipv6] import-route direct
[*ASBR2-bgp-af-ipv6] quit
[*ASBR2-bgp] link-state-family unicast
[*ASBR2-bgp-af-ls] peer 2020::1 enable
[*ASBR2-bgp-af-ls] quit
[*ASBR2-bgp] quit
[*ASBR2] commit配置完成后，执行display bgp egress-engineering命令查看BGP EPE信息，可以看到SRv6 SID。以ASBR1的显示为例：
[~ASBR1] display bgp egress-engineering
Peer Node : 2020::2
Peer Adj Num : 0
Local ASN : 100
Remote ASN : 200
Local Router Id : 2.2.2.2
Remote Router Id : 3.3.3.3
Local Interface Address : 2020::1
Remote Interface Address : 2020::2
SRv6 SID : 20::100
SRv6 SID (PSP) : 20::1:0:1E
Nexthop : 2020::2
Out Interface : GigabitEthernet2/0/0 7.在PE之间建立MP-EBGP对等体关系，并且配置利用对等体关系相互发送携带SID的BGP VPNv4路由
# 配置PE1。
[~PE1] bgp 100
[~PE1-bgp] peer 4::4 as-number 200
[*PE1-bgp] peer 4::4 ebgp-max-hop 255
[*PE1-bgp] peer 4::4 connect-interface loopback 1
[*PE1-bgp] ipv4-family vpnv4
[*PE1-bgp-af-vpnv4] peer 4::4 enable
[*PE1-bgp-af-vpnv4] peer 4::4 prefix-sid
[*PE1-bgp-af-vpnv4] quit
[*PE1-bgp] ipv4-family vpn-instance vpna
[*PE1-bgp-vpna] segment-routing ipv6 traffic-engineer
[*PE1-bgp-vpna] segment-routing ipv6 locator as1
[*PE1-bgp-vpna] commit
[~PE1-bgp-vpna] quit
[~PE1-bgp] quit# 配置PE2。
[~PE2] bgp 200
[~PE2-bgp] peer 1::1 as-number 100
[*PE2-bgp] peer 1::1 ebgp-max-hop 255
[*PE2-bgp] peer 1::1 connect-interface loopback 1
[*PE2-bgp] ipv4-family vpnv4
[*PE2-bgp-af-vpnv4] peer 1::1 enable
[*PE2-bgp-af-vpnv4] peer 1::1 prefix-sid
[*PE2-bgp-af-vpnv4] quit
[*PE2-bgp] ipv4-family vpn-instance vpna
[*PE2-bgp-vpna] segment-routing ipv6 traffic-engineer
[*PE2-bgp-vpna] segment-routing ipv6 locator as1
[*PE2-bgp-vpna] commit
[~PE2-bgp-vpna] quit
[~PE2-bgp] quit配置完成后，在PE设备上执行display bgp vpnv4 all peer命令，可以看到PE之间的BGP对等体关系已建立，并达到Established状态。以PE1的显示为例：
[~PE1] display bgp vpnv4 all peer
BGP local router ID : 1.1.1.1
Local AS number : 100
Total number of peers : 2 Peers in established state : 2
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
4::4 4 200 1032 1037 0 14:58:13 Established 2
Peer of IPv4-family for vpn instance :
VPN-Instance vpna, Router ID 1.1.1.1:
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.1.1.2 4 65410 1313 1330 0 19:06:22 Established 1 8.配置SRv6 TE Policy
# 配置PE1。
[~PE1] segment-routing ipv6
[~PE1-segment-routing-ipv6] segment-list list1
[*PE1-segment-routing-ipv6-segment-list-list1] index 5 sid ipv6 10::100
[*PE1-segment-routing-ipv6-segment-list-list1] index 10 sid ipv6 20::100
[*PE1-segment-routing-ipv6-segment-list-list1] index 15 sid ipv6 30::100
[*PE1-segment-routing-ipv6-segment-list-list1] commit
[~PE1-segment-routing-ipv6-segment-list-list1] quit
[~PE1-segment-routing-ipv6] srv6-te-policy locator as1
[*PE1-segment-routing-ipv6] srv6-te policy policy1 endpoint 4::4 color 101
[*PE1-segment-routing-ipv6-policy-policy1] binding-sid 10::1000
[*PE1-segment-routing-ipv6-policy-policy1] candidate-path preference 100
[*PE1-segment-routing-ipv6-policy-policy1-path] segment-list list1
[*PE1-segment-routing-ipv6-policy-policy1-path] commit
[~PE1-segment-routing-ipv6-policy-policy1-path] quit
[~PE1-segment-routing-ipv6-policy-policy1] quit
[~PE1-segment-routing-ipv6] quit# 配置PE2。
[~PE2] segment-routing ipv6
[~PE2-segment-routing-ipv6] segment-list list1
[*PE2-segment-routing-ipv6-segment-list-list1] index 5 sid ipv6 40::200
[*PE2-segment-routing-ipv6-segment-list-list1] index 10 sid ipv6 30::200
[*PE2-segment-routing-ipv6-segment-list-list1] index 15 sid ipv6 20::200
[*PE2-segment-routing-ipv6-segment-list-list1] commit
[~PE2-segment-routing-ipv6-segment-list-list1] quit
[~PE2-segment-routing-ipv6] srv6-te-policy locator as1
[*PE2-segment-routing-ipv6] srv6-te policy policy1 endpoint 1::1 color 101
[*PE2-segment-routing-ipv6-policy-policy1] binding-sid 40::1000
[*PE2-segment-routing-ipv6-policy-policy1] candidate-path preference 100
[*PE2-segment-routing-ipv6-policy-policy1-path] segment-list list1
[*PE2-segment-routing-ipv6-policy-policy1-path] commit
[~PE2-segment-routing-ipv6-policy-policy1-path] quit
[~PE2-segment-routing-ipv6-policy-policy1] quit
[~PE2-segment-routing-ipv6] quit配置完成后，执行命令display srv6-te policy查看SRv6 TE Policy信息。
以PE1的显示为例：
[~PE1] display srv6-te policy
PolicyName : policy1
Color : 101 Endpoint : 4::4
TunnelId : 1 Binding SID : 10::1000
TunnelType : SRv6-TE Policy DelayTimerRemain : -
Policy State : Up State Change Time : 2020-02-17 11:16:30
Admin State : Up Traffic Statistics : Disable
Backup Hot-Standby : Disable BFD : Disable
Interface Index : - Interface Name : -
Interface State : - Encapsulation Mode : Insert
Candidate-path Count : 1
Candidate-path Preference : 100
Path State : Active Path Type : Primary
Protocol-Origin : Configuration(30) Originator : 0, 0.0.0.0
Discriminator : 100 Binding SID : 10::1000
GroupId : 1 Policy Name : policy1
Template ID : 0 Path Verification : Disable
DelayTimerRemain : - Segment-List Count : 1
Segment-List : list1
Segment-List ID : 1 XcIndex : 1
List State : Up DelayTimerRemain : -
Verification State : - SuppressTimeRemain : -
PMTU : 9600 Active PMTU : 9600
Weight : 1 BFD State : -
SID :
10::100
20::100
30::1009.配置隧道策略，引入私网流量
# 配置PE1。
[~PE1] route-policy p1 permit node 10
[*PE1-route-policy] apply extcommunity color 0:101
[*PE1-route-policy] quit
[*PE1] bgp 100
[*PE1-bgp] ipv4-family vpnv4
[*PE1-bgp-af-vpnv4] peer 4::4 route-policy p1 import
[*PE1-bgp-af-vpnv4] quit
[*PE1-bgp] quit
[*PE1] tunnel-policy p1
[*PE1-tunnel-policy-p1] tunnel select-seq ipv6 srv6-te-policy load-balance-number 1
[*PE1-tunnel-policy-p1] quit
[*PE1] ip vpn-instance vpna
[*PE1-vpn-instance-vpna] ipv4-family
[*PE1-vpn-instance-vpna-af-ipv4] tnl-policy p1
[*PE1-vpn-instance-vpna-af-ipv4] commit
[~PE1-vpn-instance-vpna-af-ipv4] quit
[~PE1-vpn-instance-vpna] quit# 配置PE2。
[~PE2] route-policy p1 permit node 10
[*PE2-route-policy] apply extcommunity color 0:101
[*PE2-route-policy] quit
[*PE2] bgp 200
[*PE2-bgp] ipv4-family vpnv4
[*PE2-bgp-af-vpnv4] peer 1::1 route-policy p1 import
[*PE2-bgp-af-vpnv4] quit
[*PE2-bgp] quit
[*PE2] tunnel-policy p1
[*PE2-tunnel-policy-p1] tunnel select-seq ipv6 srv6-te-policy load-balance-number 1
[*PE2-tunnel-policy-p1] quit
[*PE2] ip vpn-instance vpna
[*PE2-vpn-instance-vpna] ipv4-family
[*PE2-vpn-instance-vpna-af-ipv4] tnl-policy p1
[*PE2-vpn-instance-vpna-af-ipv4] commit
[~PE2-vpn-instance-vpna-af-ipv4] quit
[~PE2-vpn-instance-vpna] quit配置完成后，执行命令display ip routing-table vpn-instance vpna查看VPN实例路由表信息，可以看到私网路由已经成功迭代到SRv6 TE Policy。
以PE1的显示为例：
[~PE1] display ip routing-table vpn-instance vpna
Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route
------------------------------------------------------------------------------
Routing Table : vpna
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost Flags NextHop Interface
10.1.1.0/24 Direct 0 0 D 10.1.1.1 GigabitEthernet1/0/0
10.1.1.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet1/0/0
10.1.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet1/0/0
10.2.1.0/24 EBGP 255 0 RD 4::4 policy1
11.11.11.11/32 EBGP 255 0 RD 10.1.1.2 GigabitEthernet1/0/0
22.22.22.22/32 EBGP 255 0 RD 4::4 policy1
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[~PE1] display ip routing-table vpn-instance vpna 22.22.22.22 verbose
Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route
------------------------------------------------------------------------------
Routing Table : vpna
Summary Count : 1
Destination: 22.22.22.22/32
Protocol: EBGP Process ID: 0
Preference: 255 Cost: 0
NextHop: 4::4 Neighbour: 4::4
State: Active Adv Relied Age: 00h00m01s
Tag: 0 Priority: low
Label: 3 QoSInfo: 0x0
IndirectID: 0x10000E5 Instance:
RelayNextHop: :: Interface: policy1
TunnelID: 0x000000003400000001 Flags: RD 10.检查配置结果
同一VPN的CE能够相互Ping通，例如：
[~CE1] ping -a 11.11.11.11 22.22.22.22
PING 22.22.22.22: 56 data bytes, press CTRL_C to break
Reply from 22.22.22.22: bytes=56 Sequence=1 ttl=253 time=1030 ms
Reply from 22.22.22.22: bytes=56 Sequence=2 ttl=253 time=37 ms
Reply from 22.22.22.22: bytes=56 Sequence=3 ttl=253 time=30 ms
Reply from 22.22.22.22: bytes=56 Sequence=4 ttl=253 time=35 ms
Reply from 22.22.22.22: bytes=56 Sequence=5 ttl=253 time=34 ms
--- 22.22.22.22 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/233/1030 ms 以上是关于华为运营商级路由器配置示例 | 跨域L3VdPdNdv4 over SRv6 TE Policy的主要内容，如果未能解决你的问题，请参考以下文章
华为运营商级路由器配置示例 | 配置OptionC方式跨域LDP VPLS示例
华为运营商级路由器配置示例 | 配置OptionC方式跨域BGP VPLS示例
华为运营商级路由器配置示例 | 配置OptionB方式跨域BGP VPLS示例
华为运营商级路由器配置示例 | 配置OptionA方式跨域BGP VPLS示例