华为L3VPNv4 over SRv6 BE配置案例

NE1

sysname pe1

ip vpn-instance vpn
ipv4-family
route-distinguisher 1:1
vpn-target 100:100 export-extcommunity
vpn-target 100:100 import-extcommunity

segment-routing ipv6 //建立srv6-BE路径
encapsulation source-address 2000::1 //用自己的回环口地址建立node sid
locator test ipv6-prefix 2000:1::1 64 static 32 //funcation用默认的动态自动生成

isis 1
is-level level-2
cost-style wide
network-entity 49.0001.0000.0000.0001.00

ipv6 enable topology ipv6
segment-routing ipv6 locator test //调用上面的名为test的locator，用isis扩散出去

interface Ethernet1/0/0
undo shutdown
ip binding vpn-instance vpn
ip address 192.168.0.1 255.255.255.0
undo dcn
undo dcn mode vlan

interface Ethernet1/0/1
undo shutdown
ipv6 enable
ipv6 address auto link-local
isis ipv6 enable 1
undo dcn
undo dcn mode vlan

interface LoopBack0
ipv6 enable
ipv6 address 2000::1/128
isis ipv6 enable 1

interface NULL0

bgp 100
router-id 1.1.1.1
peer 2000::3 as-number 100
peer 2000::3 connect-interface LoopBack0

ipv4-family unicast
undo synchronization

ipv4-family vpnv4
policy vpn-target
peer 2000::3 enable
peer 2000::3 prefix-sid //段路由产生一个V标,私网路由携带SID

ipv4-family vpn-instance vpn
peer 192.168.0.2 as-number 65001
segment-routing ipv6 locator test //给vpn实例分配srv6标签，End.DT4
segment-routing ipv6 best-effort

undo dcn

NE2

isis 1
is-level level-2
cost-style wide
network-entity 49.0001.0000.0000.0002.00

ipv6 enable topology ipv6

interface Ethernet1/0/1
undo shutdown
ipv6 enable
ipv6 address auto link-local
isis ipv6 enable 1
undo dcn
undo dcn mode vlan

interface Ethernet1/0/2
undo shutdown
ipv6 enable
ipv6 address auto link-local
isis enable 1
isis ipv6 enable 1
undo dcn mode vlan

interface LoopBack0
ipv6 enable
ipv6 address 2000::2/128
isis ipv6 enable 1

undo dcn

NE3

ip vpn-instance vpn
ipv4-family
route-distinguisher 1:2
vpn-target 100:100 export-extcommunity
vpn-target 100:100 import-extcommunity

segment-routing ipv6
encapsulation source-address 2000::3
locator test ipv6-prefix 2000:3::3 64 static 32

isis 1
is-level level-2
cost-style wide
network-entity 49.0001.0000.0000.0003.00

ipv6 enable topology ipv6
segment-routing ipv6 locator test

interface Ethernet1/0/0
undo shutdown
ip binding vpn-instance vpn
ip address 192.168.1.1 255.255.255.0
undo dcn
undo dcn mode vlan

interface Ethernet1/0/1
undo shutdown
undo dcn
undo dcn mode vlan

interface Ethernet1/0/2
undo shutdown
ipv6 enable
ipv6 address auto link-local
isis ipv6 enable 1
undo dcn mode vlan

interface LoopBack0
ipv6 enable
ipv6 address 2000::3/128
isis ipv6 enable 1

interface NULL0

bgp 100
router-id 3.3.3.3
peer 2000::1 as-number 100
peer 2000::1 connect-interface LoopBack0

ipv4-family unicast
undo synchronization

ipv4-family vpnv4
policy vpn-target
peer 2000::1 enable
peer 2000::1 prefix-sid

ipv4-family vpn-instance vpn
peer 192.168.1.2 as-number 65002
segment-routing ipv6 locator test
segment-routing ipv6 best-effort

undo dcn

静态手动指定funcation

如果要用静态手动指定funcation就用以下配置替换上面的对应配，两边pe都要配：
isis 1
[pe2-isis-1]dis segment-routing ipv6 local-sid end forwarding //默认是动态，关掉它

segment-routing ipv6
locator test
opcode ::111 end //手动指定end

查看

[pe1]dis segment-routing ipv6 local-sid end-dt4 forwarding

[pe1]dis ip routing-table vpn-instance vpn 22.1.1.1 verbose

[pe2]dis segment-routing ipv6 local-sid end forwarding