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配置BGP4+ 6PE迭代静态SR-MPLS TE Policy示例
配置BGP4+ 6PE迭代SR-MPLS TE Policy，将不连续的IPv6网络通过SR网络连接起来。
组网需求
不连续的IPv6网络之间需要通信，且IPv6网络之间是SR网络的情况下，可以采用BGP4+ 6PE迭代SR-MPLS TE Policy方案。
如图2-26所示，CE1、CE2所在的IPv6网络之间没有直连链路，CE1和CE2希望能够借助于SR网络进行通信，这可以通过在PE1和PE2之间建立6PE对等体来解决。6PE对等体通过MP-BGP来发送从各自CE学来的IPv6路由，通过SR-MPLS TE Policy来转发IPv6数据。
配置思路
采用如下的思路配置BGP4+ 6PE迭代静态SR-MPLS TE Policy：
骨干网上配置IS-IS实现PE之间的互通。
骨干网上使能MPLS，配置Segment Routing和静态邻接标签。
PE上配置SR-MPLS TE Policy，SR-MPLS TE Policy配置主备路径。
PE上配置SBFD和HSB功能，增强SR-MPLS TE Policy可靠性。
在PE设备为路由配置扩展团体属性Color，可以使用入口策略也可以使用出口策略，本例使用入口策略在接收路由时设置扩展团体属性Color。
PE之间配置MP-IBGP交换路由信息，使能标签路由交换能力。
在PE设备上配置隧道选择策略。
CE与PE之间配置EBGP交换路由信息。
操作步骤
- 配置接口的IP地址。
# 配置PE1。
<HUAWEI> system-view[~HUAWEI] sysname PE1
[*HUAWEI] commit
[~PE1] interface loopback 1[*PE1-LoopBack1] ip address 1.1.1.9 32[*PE1-LoopBack1] quit[*PE1] interface gigabitethernet0/1/0
[*PE1-GigabitEthernet0/1/0] ip address 10.13.1.1 24
[*PE1-GigabitEthernet0/1/0] quit
[*PE1] interface gigabitethernet0/3/0
[*PE1-GigabitEthernet0/3/0] ip address 10.11.1.1 24
[*PE1-GigabitEthernet0/3/0] quit
[*PE1] commit# 配置P1。
<HUAWEI> system-view[~HUAWEI] sysname P1
[*HUAWEI] commit
[~P1] interface loopback 1[*P1-LoopBack1] ip address 2.2.2.9 32[*P1-LoopBack1] quit[*P1] interface gigabitethernet0/1/0
[*P1-GigabitEthernet0/1/0] ip address 10.11.1.2 24
[*P1-GigabitEthernet0/1/0] quit
[*P1] interface gigabitethernet0/2/0
[*P1-GigabitEthernet0/2/0] ip address 10.12.1.1 24
[*P1-GigabitEthernet0/2/0] quit
[*P1] commit# 配置PE2。
<HUAWEI> system-view[~HUAWEI] sysname PE2
[*HUAWEI] commit
[~PE2] interface loopback 1[*PE2-LoopBack1] ip address 3.3.3.9 32[*PE2-LoopBack1] quit[*PE2] interface gigabitethernet0/1/0
[*PE2-GigabitEthernet0/1/0] ip address 10.14.1.2 24
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] interface gigabitethernet0/3/0
[*PE2-GigabitEthernet0/3/0] ip address 10.12.1.2 24
[*PE2-GigabitEthernet0/3/0] quit
[*PE2] commit# 配置P2。
<HUAWEI> system-view[~HUAWEI] sysname P2
[*HUAWEI] commit
[~P2] interface loopback 1[*P2-LoopBack1] ip address 4.4.4.9 32[*P2-LoopBack1] quit[*P2] interface gigabitethernet0/1/0
[*P2-GigabitEthernet0/1/0] ip address 10.13.1.2 24
[*P2-GigabitEthernet0/1/0] quit
[*P2] interface gigabitethernet0/2/0
[*P2-GigabitEthernet0/2/0] ip address 10.14.1.1 24
[*P2-GigabitEthernet0/2/0] quit
[*P2] commit - 在骨干网上配置IGP协议，实现骨干网PE和P的互通。本例中以IS-IS为例进行说明。
# 配置PE1。
[~PE1] isis 1[*PE1-isis-1] is-level level-1[*PE1-isis-1] network-entity 10.0000.0000.0001.00[*PE1-isis-1] quit[*PE1] commit[*PE1] interface loopback 1[*PE1-LoopBack1] isis enable 1[*PE1-LoopBack1] quit[*PE1] interface gigabitethernet0/1/0
[*PE1-GigabitEthernet0/1/0] isis enable 1
[*PE1-GigabitEthernet0/1/0] quit
[*PE1] interface gigabitethernet0/3/0
[*PE1-GigabitEthernet0/3/0] isis enable 1
[*PE1-GigabitEthernet0/3/0] quit
[*PE1] commit# 配置P1。
[~P1] isis 1[*P1-isis-1] is-level level-1[*P1-isis-1] network-entity 10.0000.0000.0002.00[*P1-isis-1] quit[*P1] commit[~P1] interface loopback 1[*P1-LoopBack1] isis enable 1[*P1-LoopBack1] quit[*P1] interface gigabitethernet0/1/0
[*P1-GigabitEthernet0/1/0] isis enable 1
[*P1-GigabitEthernet0/1/0] quit
[*P1] interface gigabitethernet0/2/0
[*P1-GigabitEthernet0/2/0] isis enable 1
[*P1-GigabitEthernet0/2/0] quit
[*P1] commit# 配置PE2。
[~PE2] isis 1[*PE2-isis-1] is-level level-1[*PE2-isis-1] network-entity 10.0000.0000.0003.00[*PE2-isis-1] quit[*PE2] commit[~PE2] interface loopback 1[*PE2-LoopBack1] isis enable 1[*PE2-LoopBack1] quit[*PE2] interface gigabitethernet0/3/0
[*PE2-GigabitEthernet0/3/0] isis enable 1
[*PE2-GigabitEthernet0/3/0] quit
[*PE2] interface gigabitethernet0/1/0
[*PE2-GigabitEthernet0/1/0] isis enable 1
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] commit# 配置P2。
[~P2] isis 1[*P2-isis-1] is-level level-1[*P2-isis-1] network-entity 10.0000.0000.0004.00[*P2-isis-1] quit[*P2] commit[~P2] interface loopback 1[*P2-LoopBack1] isis enable 1[*P2-LoopBack1] quit[*P2] interface gigabitethernet0/1/0
[*P2-GigabitEthernet0/1/0] isis enable 1
[*P2-GigabitEthernet0/1/0] quit
[*P2] interface gigabitethernet0/2/0
[*P2-GigabitEthernet0/2/0] isis enable 1
[*P2-GigabitEthernet0/2/0] quit
[*P2] commit - 在骨干网上配置MPLS基本能力
# 配置PE1。
[~PE1] mpls lsr-id 1.1.1.9[*PE1] mpls[*PE1-mpls] commit[~PE1-mpls] quit# 配置P1。
[~P1] mpls lsr-id 2.2.2.9[*P1] mpls[*P1-mpls] commit[~P1-mpls] quit# 配置PE2。
[~PE2] mpls lsr-id 3.3.3.9[*PE2] mpls[*PE2-mpls] commit[~PE2-mpls] quit# 配置P2。
[~P2] mpls lsr-id 4.4.4.9[*P2] mpls[*P2-mpls] commit[~P2-mpls] quit - 在骨干网上配置Segment Routing
# 配置PE1。
[~PE1] segment-routing[*PE1-segment-routing] ipv4 adjacency local-ip-addr 10.11.1.1 remote-ip-addr 10.11.1.2 sid 330000[*PE1-segment-routing] ipv4 adjacency local-ip-addr 10.13.1.1 remote-ip-addr 10.13.1.2 sid 330001[*PE1-segment-routing] quit[*PE1] commit[~PE1] isis 1[*PE1-isis-1] cost-style wide[*PE1-isis-1] segment-routing mpls[*PE1-isis-1] quit[*PE1] commit# 配置P1。
[~P1] segment-routing[*P1-segment-routing] ipv4 adjacency local-ip-addr 10.11.1.2 remote-ip-addr 10.11.1.1 sid 330003[*P1-segment-routing] ipv4 adjacency local-ip-addr 10.12.1.1 remote-ip-addr 10.12.1.2 sid 330002[*P1-segment-routing] quit[*P1] commit[~P1] isis 1[*P1-isis-1] cost-style wide[*P1-isis-1] segment-routing mpls[*P1-isis-1] quit[*P1] commit# 配置PE2。
[~PE2] segment-routing[*PE2-segment-routing] ipv4 adjacency local-ip-addr 10.12.1.2 remote-ip-addr 10.12.1.1 sid 330000[*PE2-segment-routing] ipv4 adjacency local-ip-addr 10.14.1.2 remote-ip-addr 10.14.1.1 sid 330001[*PE2-segment-routing] quit[*PE2] commit[~PE2] isis 1[*PE2-isis-1] cost-style wide[*PE2-isis-1] segment-routing mpls[*PE2-isis-1] quit[*PE2] commit# 配置P2。
[~P2] segment-routing[*P2-segment-routing] ipv4 adjacency local-ip-addr 10.13.1.2 remote-ip-addr 10.13.1.1 sid 330002[*P2-segment-routing] ipv4 adjacency local-ip-addr 10.14.1.1 remote-ip-addr 10.14.1.2 sid 330003[*P2-segment-routing] quit[*P2] commit[~P2] isis 1[*P2-isis-1] cost-style wide[*P2-isis-1] segment-routing mpls[*P2-isis-1] quit[*P2] commit - 配置SR-MPLS TE Policy
# 配置PE1。
[~PE1] segment-routing[~PE1-segment-routing] segment-list pe1[*PE1-segment-routing-segment-list] index 10 sid label 330000[*PE1-segment-routing-segment-list] index 20 sid label 330002[*PE1-segment-routing-segment-list] quit[*PE1-segment-routing] segment-list pe1backup[*PE1-segment-routing-segment-list] index 10 sid label 330001[*PE1-segment-routing-segment-list] index 20 sid label 330003[*PE1-segment-routing-segment-list] quit[*PE1-segment-routing] sr-te policy policy100 endpoint 3.3.3.9 color 100[*PE1-segment-routing-te-policy] binding-sid 115[*PE1-segment-routing-te-policy] mtu 1000[*PE1-segment-routing-te-policy] candidate-path preference 100[*PE1-segment-routing-te-policy-path] segment-list pe1backup[*PE1-segment-routing-te-policy-path] quit[*PE1-segment-routing-te-policy] candidate-path preference 200[*PE1-segment-routing-te-policy-path] segment-list pe1[*PE1-segment-routing-te-policy-path] quit[*PE1-segment-routing-te-policy] quit[*PE1-segment-routing] quit[*PE1] commit# 配置PE2。
[~PE2] segment-routing[~PE2-segment-routing] segment-list pe2[*PE2-segment-routing-segment-list] index 10 sid label 330000[*PE2-segment-routing-segment-list] index 20 sid label 330003[*PE2-segment-routing-segment-list] quit[*PE2-segment-routing] segment-list pe2backup[*PE2-segment-routing-segment-list] index 10 sid label 330001[*PE2-segment-routing-segment-list] index 20 sid label 330002[*PE2-segment-routing-segment-list] quit[*PE2-segment-routing] sr-te policy policy200 endpoint 1.1.1.9 color 200[*PE2-segment-routing-te-policy] binding-sid 115[*PE2-segment-routing-te-policy] mtu 1000[*PE2-segment-routing-te-policy] candidate-path preference 100[*PE2-segment-routing-te-policy-path] segment-list pe2backup[*PE2-segment-routing-te-policy-path] quit[*PE2-segment-routing-te-policy] candidate-path preference 200[*PE2-segment-routing-te-policy-path] segment-list pe2[*PE2-segment-routing-te-policy-path] quit[*PE2-segment-routing-te-policy] quit[*PE2-segment-routing] quit[*PE2] commit配置完成后，可以使用display sr-te policy命令查看SR-MPLS TE Policy信息。以PE1的显示为例：
[~PE1] display sr-te policyPolicyName : policy100 Endpoint : 3.3.3.9 Color : 100 TunnelId : 1 TunnelType : SR-TE Policy Binding SID : 115 MTU : 1000 Policy State : UP BFD : Disable Admin State : UP DiffServ-Mode : - Traffic Statistics : Disable Backup Hot-Standby : Disable Candidate-path Count : 2 Candidate-path Preference: 200 Path State : Valid Path Type : Primary Protocol-Origin : Configuration(30) Originator : 0, 0.0.0.0 Discriminator : 200 Binding SID : - GroupId : 2 Policy Name : policy100 Segment-List Count : 1 Segment-List : pe1 Segment-List ID : 129 XcIndex : 68 List State : UP BFD State : - EXP : 0 TTL : 255 DeleteTimerRemain : - Label : 330000, 330002 Candidate-path Preference: 100 Path State : Invalid Path Type : - Protocol-Origin : Configuration(30) Originator : 0, 0.0.0.0 Discriminator : 100 Binding SID : - GroupId : 1 Policy Name : policy100 Segment-List Count : 1 Segment-List : pe1backup Segment-List ID : 194 XcIndex : - List State : DOWN BFD State : - EXP : 0 TTL : 255 DeleteTimerRemain : - Label : 330001, 330003
- 配置SBFD及HSB功能
# 配置PE1。
[~PE1] bfd[*PE1-bfd] quit[*PE1] sbfd[*PE1-sbfd] reflector discriminator 1.1.1.9[*PE1-sbfd] quit[*PE1] segment-routing[*PE1-segment-routing] sr-te-policy seamless-bfd enable[*PE1-segment-routing] sr-te-policy backup hot-standby enable[*PE1-segment-routing] commit[~PE1-segment-routing] quit# 配置PE2。
[~PE2] bfd[*PE2-bfd] quit[*PE2] sbfd[*PE2-sbfd] reflector discriminator 3.3.3.9[*PE2-sbfd] quit[*PE2] segment-routing[*PE2-segment-routing] sr-te-policy seamless-bfd enable[*PE2-segment-routing] sr-te-policy backup hot-standby enable[*PE2-segment-routing] commit[~PE2-segment-routing] quit - 配置路由策略
# 配置PE1。
[~PE1] route-policy color100 permit node 1[*PE1-route-policy] apply extcommunity color 0:100[*PE1-route-policy] quit[*PE1] commit# 配置PE2。
[~PE2] route-policy color200 permit node 1[*PE2-route-policy] apply extcommunity color 0:200[*PE2-route-policy] quit[*PE2] commit - 在PE之间建立MP-IBGP对等体关系，使能标签路由发布能力。同时BGP4+邻居应用入口策略，为路由添加扩展团体属性Color
# 配置PE1。
[~PE1] bgp 100[~PE1-bgp] peer 3.3.3.9 as-number 100[*PE1-bgp] peer 3.3.3.9 connect-interface loopback 1[*PE1-bgp] ipv6-family unicast[*PE1-bgp-af-ipv6] peer 3.3.3.9 enable[*PE1-bgp-af-ipv6] peer 3.3.3.9 label-route-capability[*PE1-bgp-af-ipv6] peer 3.3.3.9 route-policy color100 import[*PE1-bgp-af-ipv6] commit[~PE1-bgp-af-ipv6] quit[~PE1-bgp] quit# 配置PE2。
[~PE2] bgp 100[~PE2-bgp] peer 1.1.1.9 as-number 100[*PE2-bgp] peer 1.1.1.9 connect-interface loopback 1[*PE2-bgp] ipv6-family unicast[*PE2-bgp-af-ipv6] peer 1.1.1.9 enable[*PE2-bgp-af-ipv6] peer 1.1.1.9 label-route-capability[*PE2-bgp-af-ipv6] peer 1.1.1.9 route-policy color200 import[*PE2-bgp-af-ipv6] commit[~PE2-bgp-af-ipv6] quit[~PE2-bgp] quit配置完成后，在PE设备上执行display bgp ipv6 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 ipv6 peerBGP local router ID : 10.13.1.1 Local AS number : 100 Total number of peers : 1 Peers in established state : 1 Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv 3.3.3.9 4 100 6 7 0 00:01:16 Established 0
- 在PE设备上配置隧道选择策略，优选SR-MPLS TE Policy。
# 配置PE1。
[~PE1] tunnel-policy p1[*PE1-tunnel-policy-p1] tunnel select-seq sr-te-policy load-balance-number 1 unmix[*PE1-tunnel-policy-p1] quit[*PE1] commit[~PE1] bgp 100[*PE1-bgp] ipv6-family unicast[*PE1-bgp-af-ipv6] peer 3.3.3.9 tnl-policy p1[*PE1-bgp-af-ipv6] quit[*PE1-bgp] quit[*PE1] commit# 配置PE2。
[~PE2] tunnel-policy p1[*PE2-tunnel-policy-p1] tunnel select-seq sr-te-policy load-balance-number 1 unmix[*PE2-tunnel-policy-p1] quit[*PE2] commit[~PE2] bgp 100[*PE2-bgp] ipv6-family unicast[*PE2-bgp-af-ipv6] peer 1.1.1.9 tnl-policy p1[*PE2-bgp-af-ipv6] quit[*PE2-bgp] quit[*PE2] commit - 在PE与CE之间建立EBGP对等体关系
# 配置CE1。
[~CE1] interface loopback 1[*CE1-LoopBack1] ipv6 enable[*CE1-LoopBack1] ipv6 address 2001:db8::11:1 128[*CE1-LoopBack1] quit[*CE1] interface gigabitethernet0/1/0
[*CE1-GigabitEthernet0/1/0] ipv6 enable
[*CE1-GigabitEthernet0/1/0] ip address 2001:db8::1:1 96
[*CE1-GigabitEthernet0/1/0] quit
[*CE1] bgp 65410[*CE1-bgp] router-id 10.10.10.10[*CE1-bgp] peer 2001:db8::1:2 as-number 100[*CE1-bgp] ipv6-family[*CE1-bgp-af-ipv6] peer 2001:db8::1:2 enable[*CE1-bgp-af-ipv6] network 2001:db8::11:1 128[*CE1-bgp-af-ipv6] quit[*CE1-bgp] quit[*CE1] commitCE2的配置与CE1设备配置类似，配置过程请参见后面的配置文件。
# 配置PE1。
[~PE1] bgp 100[*PE1-bgp] peer 2001:db8::1:1 as-number 65410[*PE1-bgp] ipv6-family unicast[*PE1-bgp-af-ipv6] peer 2001:db8::1:1 enable[*PE1-bgp-af-ipv6] commit[*PE1-bgp-af-ipv6] quit[*PE1-bgp] quitPE2的配置与PE1类似，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 bgp ipv6 peer命令，可以看到PE与CE之间的BGP4+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 ipv6 peerBGP local router ID : 10.13.1.1 Local AS number : 100 Total number of peers : 2 Peers in established state : 2 Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv 3.3.3.9 4 100 6 7 0 00:01:16 Established 0 2001:DB8::1:1 4 65410 5 4 0 00:01:16 Established 1
- 检查配置结果
在PE设备上执行display ipv6 routing-table命令，可以看到去往CE上的Loopback接口路由。
以PE1的显示为例：
[~PE1] display ipv6 routing-tableRouting Table : _public_ Destinations : 8 Routes : 8 Destination : ::1 PrefixLength : 128 NextHop : ::1 Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : InLoopBack0 Flags : D Destination : ::FFFF:127.0.0.0 PrefixLength : 104 NextHop : ::FFFF:127.0.0.1 Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : InLoopBack0 Flags : D Destination : ::FFFF:127.0.0.1 PrefixLength : 128 NextHop : ::1 Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : InLoopBack0 Flags : D Destination : 2001:DB8:: PrefixLength : 96 NextHop : 2001:DB8::1:2 Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : GigabitEthernet0/2/0 Flags : D Destination : 2001:DB8::1:2 PrefixLength : 128 NextHop : ::1 Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : GigabitEthernet0/2/0 Flags : D Destination : 2001:2001::1 PrefixLength : 128 NextHop : 2001:DB8::1:1 Preference : 255 Cost : 0 Protocol : EBGP RelayNextHop : 2001:DB8::1:1 TunnelID : 0x0 Interface : GigabitEthernet0/2/0 Flags : RD Destination : 2002:2002::2 PrefixLength : 128 NextHop : ::FFFF:3.3.3.9 Preference : 255 Cost : 0 Protocol : IBGP RelayNextHop : 2001:DB8::1:1 TunnelID : 0x000000003200000001 Interface : SR TE Policy Flags : RD Destination : FE80:: PrefixLength : 10 NextHop : :: Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : NULL0 Flags : DB在PE设备上执行display ipv6 routing-table verbose命令，可以看到去往CE上的Loopback接口路由的详细信息。
以PE1的显示为例：
[~PE1] display ipv6 routing-table 2002:2002::2 verboseRoute Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route ------------------------------------------------------------------------------ Routing Table : _public_ Summary Count : 1 Destination : 2002:2002::2 PrefixLength : 128 NextHop : ::FFFF:3.3.3.9 Preference : 255 Neighbour : ::3.3.3.9 ProcessID : 0 Label : 48183 Protocol : IBGP State : Active Adv Relied Cost : 0 Entry ID : 0 EntryFlags : 0x00000000 Reference Cnt: 0 Tag : 0 Priority : low Age : 288sec IndirectID : 0x10000C8 Instance : RelayNextHop : 0.0.0.0 TunnelID : 0x000000003200000001 Interface : SR TE Policy Flags : RD
从以上信息可以看出，BGP4+路由已经成功迭代到SR-MPLS TE Policy。
CE之间能够相互Ping通，例如：CE1能够Ping通CE2（2001:db8::22:2）。
[~CE1] ping ipv6 -a 2001:db8::11:1 2001:db8::22:2 PING 2001:db8::22:2 : 56 data bytes, press CTRL_C to break Reply from 2001:db8::22:2 bytes=56 Sequence=1 hop limit=62 time = 170 ms Reply from 2001:db8::22:2 bytes=56 Sequence=2 hop limit=62 time = 140 ms Reply from 2001:db8::22:2 bytes=56 Sequence=3 hop limit=62 time = 150 ms Reply from 2001:db8::22:2 bytes=56 Sequence=4 hop limit=62 time = 140 ms Reply from 2001:db8::22:2 bytes=56 Sequence=5 hop limit=62 time = 170 ms --- 2001:db8::22:2 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 140/154/170 ms
配置文件
PE1的配置文件
# sysname PE1 # bfd # sbfd reflector discriminator 1.1.1.9 # mpls lsr-id 1.1.1.9 # mpls # segment-routing ipv4 adjacency local-ip-addr 10.11.1.1 remote-ip-addr 10.11.1.2 sid 330000 ipv4 adjacency local-ip-addr 10.13.1.1 remote-ip-addr 10.13.1.2 sid 330001 sr-te-policy backup hot-standby enable sr-te-policy seamless-bfd enable segment-list pe1 index 10 sid label 330000 index 20 sid label 330002 segment-list pe1backup index 10 sid label 330001 index 20 sid label 330003 sr-te policy policy100 endpoint 3.3.3.9 color 100 binding-sid 115 mtu 1000 candidate-path preference 100 segment-list pe1backup candidate-path preference 200 segment-list pe1 # isis 1 is-level level-1 cost-style wide network-entity 10.0000.0000.0001.00 segment-routing mpls # interface GigabitEthernet0/1/0 undo shutdown ip address 10.13.1.1 255.255.255.0 isis enable 1 # interface GigabitEthernet0/2/0 undo shutdown ipv6 enable ipv6 address 2001:db8::1:2 96 # interface GigabitEthernet0/3/0 undo shutdown ip address 10.11.1.1 255.255.255.0 isis enable 1 # interface LoopBack1 ip address 1.1.1.9 255.255.255.255 isis enable 1 # bgp 100 peer 3.3.3.9 as-number 100 peer 3.3.3.9 connect-interface LoopBack1 peer 2001:db8::1:1 as-number 65410 # ipv4-family unicast undo synchronization peer 3.3.3.9 enable # ipv6-family unicast undo synchronization peer 3.3.3.9 route-policy color100 import peer 3.3.3.9 label-route-capability peer 3.3.3.9 tnl-policy p1 peer 2001:db8::1:1 enable # route-policy color100 permit node 1 apply extcommunity color 0:100 # tunnel-policy p1 tunnel select-seq sr-te-policy load-balance-number 1 unmix # return
P1的配置文件
# sysname P1 # mpls lsr-id 2.2.2.9 # mpls # segment-routing ipv4 adjacency local-ip-addr 10.11.1.2 remote-ip-addr 10.11.1.1 sid 330003 ipv4 adjacency local-ip-addr 10.12.1.1 remote-ip-addr 10.12.1.2 sid 330002 # isis 1 is-level level-1 cost-style wide network-entity 10.0000.0000.0002.00 segment-routing mpls # interface GigabitEthernet0/1/0 undo shutdown ip address 10.11.1.2 255.255.255.0 isis enable 1 # interface GigabitEthernet0/2/0 undo shutdown ip address 10.12.1.1 255.255.255.0 isis enable 1 # interface LoopBack1 ip address 2.2.2.9 255.255.255.255 isis enable 1 # return
PE2的配置文件
# sysname PE2 # bfd # sbfd reflector discriminator 3.3.3.9 # mpls lsr-id 3.3.3.9 # mpls # segment-routing ipv4 adjacency local-ip-addr 10.12.1.2 remote-ip-addr 10.12.1.1 sid 330000 ipv4 adjacency local-ip-addr 10.14.1.2 remote-ip-addr 10.14.1.1 sid 330001 sr-te-policy backup hot-standby enable sr-te-policy seamless-bfd enable segment-list pe2 index 10 sid label 330000 index 20 sid label 330003 segment-list pe2backup index 10 sid label 330001 index 20 sid label 330002 sr-te policy policy200 endpoint 1.1.1.9 color 200 binding-sid 115 mtu 1000 candidate-path preference 100 segment-list pe2backup candidate-path preference 200 segment-list pe2 # isis 1 is-level level-1 cost-style wide network-entity 10.0000.0000.0003.00 segment-routing mpls # interface GigabitEthernet0/1/0 undo shutdown ip address 10.14.1.2 255.255.255.0 isis enable 1 # interface GigabitEthernet0/2/0 undo shutdown ipv6 enable ipv6 address 2001:db8::2:2 96 # interface GigabitEthernet0/3/0 undo shutdown ip address 10.12.1.2 255.255.255.0 isis enable 1 # interface LoopBack1 ip address 3.3.3.9 255.255.255.255 isis enable 1 # bgp 100 peer 1.1.1.9 as-number 100 peer 1.1.1.9 connect-interface LoopBack1 peer 2001:db8::2:1 as-number 65420 # ipv4-family unicast undo synchronization peer 1.1.1.9 enable # ipv6-family unicast undo synchronization peer 1.1.1.9 route-policy color200 import peer 1.1.1.9 label-route-capability peer 1.1.1.9 tnl-policy p1 peer 2001:db8::2:1 enable # route-policy color200 permit node 1 apply extcommunity color 0:200 # tunnel-policy p1 tunnel select-seq sr-te-policy load-balance-number 1 unmix # return
P2的配置文件
# sysname P2 # mpls lsr-id 4.4.4.9 # mpls # segment-routing ipv4 adjacency local-ip-addr 10.13.1.2 remote-ip-addr 10.13.1.1 sid 330002 ipv4 adjacency local-ip-addr 10.14.1.1 remote-ip-addr 10.14.1.2 sid 330003 # isis 1 is-level level-1 cost-style wide network-entity 10.0000.0000.0004.00 segment-routing mpls # interface GigabitEthernet0/1/0 undo shutdown ip address 10.13.1.2 255.255.255.0 isis enable 1 # interface GigabitEthernet0/2/0 undo shutdown ip address 10.14.1.1 255.255.255.0 isis enable 1 # interface LoopBack1 ip address 4.4.4.9 255.255.255.255 isis enable 1 # return
CE1的配置文件
# sysname CE1 # interface GigabitEthernet0/1/0 undo shutdown ipv6 enable ipv6 address 2001:db8::1:1 96 # interface LoopBack1 ipv6 enable ipv6 address 2001:2001::1 128 # bgp 65410 router-id 10.10.10.10 peer 2001:db8::1:2 as-number 100 # ipv6-family unicast undo synchronization peer 2001:db8::1:2 enable network 2001:2001::1 128 # returnCE2的配置文件
# sysname CE2 # interface GigabitEthernet0/1/0 undo shutdown ipv6 enable ipv6 address 2001:db8::2:1 96 # interface LoopBack1 ipv6 enable ipv6 address 2002:2002::2 128 # bgp 65420 router-id 20.20.20.20 peer 2001:db8::2:2 as-number 100 # ipv6-family unicast undo synchronization peer 2001:db8::2:2 enable network 2002:2002::2 128 # return
