Example for Configuring BGP4+ 6PE Routes to Be Recursed to Manually Configured SR-MPLS TE Policies
This section provides an example for configuring BGP4+ 6PE routes to be recursed to manually configured SR-MPLS TE Policies to connect discontinuous IPv6 networks through an SR network.
Networking Requirements
If an SR network is deployed between two discontinuous IPv6 networks, you can recurse BGP4+ 6PE routes to SR-MPLS TE Policies for the IPv6 networks to communicate with each other.
On the network shown in Figure 1, there is no direct link between CE1 and CE2 on the IPv6 network. CE1 and CE2 need to communicate through the SR network. To meet this requirement, a 6PE peer relationship can be established between PE1 and PE2. The 6PE peers exchange IPv6 routes learned from their attached CEs using MP-BGP, and forward IPv6 data over SR-MPLS TE Policies.
Configuration Roadmap
The configuration roadmap is as follows:
Configure IS-IS on the backbone network for the PEs to communicate.
Enable MPLS and SR for each device on the backbone network, and configure static adjacency SIDs.
Configure an SR-MPLS TE Policy with primary and backup paths on each PE.
Configure SBFD and HSB on each PE to enhance SR-MPLS TE Policy reliability.
Apply an import or export route-policy to a specified peer on each PE, and set the Color Extended Community. In this example, an import route-policy with the Color Extended Community is applied.
Establish an MP-IBGP peer relationship between PEs and enable them to advertise labeled routes.
Configure a tunnel selection policy on each PE.
Establish an EBGP peer relationship between each CE-PE pair for the CE and PE to exchange routing information.
Data Preparation
To complete the configuration, you need the following data:
MPLS LSR IDs of PEs and Ps
Procedure
- Configure interface IP addresses for each device on the backbone network.
# Configure 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 gigabitethernet0/1/16 [*PE1-GigabitEthernet0/1/16] ip address 10.11.1.1 24 [*PE1-GigabitEthernet0/1/16] quit [*PE1] commit
# Configure 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 gigabitethernet0/1/8 [*P1-GigabitEthernet0/1/8] ip address 10.12.1.1 24 [*P1-GigabitEthernet0/1/8] quit [*P1] commit
# Configure 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 gigabitethernet0/1/16 [*PE2-GigabitEthernet0/1/16] ip address 10.12.1.2 24 [*PE2-GigabitEthernet0/1/16] quit [*PE2] commit
# Configure 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 gigabitethernet0/1/8 [*P2-GigabitEthernet0/1/8] ip address 10.14.1.1 24 [*P2-GigabitEthernet0/1/8] quit [*P2] commit
- Configure an IGP for each device on the backbone network to implement interworking between PEs and Ps. In this example, the IGP is IS-IS.
# Configure 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] 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 gigabitethernet0/1/16 [*PE1-GigabitEthernet0/1/16] isis enable 1 [*PE1-GigabitEthernet0/1/16] quit [*PE1] commit
# Configure 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] 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 gigabitethernet0/1/8 [*P1-GigabitEthernet0/1/8] isis enable 1 [*P1-GigabitEthernet0/1/8] quit [*P1] commit
# Configure 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] interface loopback 1 [*PE2-LoopBack1] isis enable 1 [*PE2-LoopBack1] quit [*PE2] interface gigabitethernet0/1/16 [*PE2-GigabitEthernet0/1/16] isis enable 1 [*PE2-GigabitEthernet0/1/16] quit [*PE2] interface gigabitethernet0/1/0 [*PE2-GigabitEthernet0/1/0] isis enable 1 [*PE2-GigabitEthernet0/1/0] quit [*PE2] commit
# Configure 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] 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 gigabitethernet0/1/8 [*P2-GigabitEthernet0/1/8] isis enable 1 [*P2-GigabitEthernet0/1/8] quit [*P2] commit
- Configure basic MPLS functions for each device on the backbone network.
# Configure PE1.
[~PE1] mpls lsr-id 1.1.1.9 [*PE1] mpls [*PE1-mpls] commit [~PE1-mpls] quit
# Configure P1.
[~P1] mpls lsr-id 2.2.2.9 [*P1] mpls [*P1-mpls] commit [~P1-mpls] quit
# Configure PE2.
[~PE2] mpls lsr-id 3.3.3.9 [*PE2] mpls [*PE2-mpls] commit [~PE2-mpls] quit
# Configure P2.
[~P2] mpls lsr-id 4.4.4.9 [*P2] mpls [*P2-mpls] commit [~P2-mpls] quit
- Enable SR for each device on the backbone network.
# Configure 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] isis 1 [*PE1-isis-1] cost-style wide [*PE1-isis-1] segment-routing mpls [*PE1-isis-1] quit [*PE1] commit
# Configure 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] isis 1 [*P1-isis-1] cost-style wide [*P1-isis-1] segment-routing mpls [*P1-isis-1] quit [*P1] commit
# Configure 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] isis 1 [*PE2-isis-1] cost-style wide [*PE2-isis-1] segment-routing mpls [*PE2-isis-1] quit [*PE2] commit
# Configure 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] isis 1 [*P2-isis-1] cost-style wide [*P2-isis-1] segment-routing mpls [*P2-isis-1] quit [*P2] commit
- Configure an SR-MPLS TE Policy.
# Configure PE1.
[~PE1] segment-routing [~PE1-segment-routing] segment-list pe1 [*PE1-segment-routing-segment-list-pe1] index 10 sid label 330000 [*PE1-segment-routing-segment-list-pe1] index 20 sid label 330002 [*PE1-segment-routing-segment-list-pe1] quit [*PE1-segment-routing] segment-list pe1backup [*PE1-segment-routing-segment-list-pe1backup] index 10 sid label 330001 [*PE1-segment-routing-segment-list-pe1backup] index 20 sid label 330003 [*PE1-segment-routing-segment-list-pe1backup] quit [*PE1-segment-routing] sr-te policy policy100 endpoint 3.3.3.9 color 100 [*PE1-segment-routing-te-policy-policy100] binding-sid 115 [*PE1-segment-routing-te-policy-policy100] mtu 1000 [*PE1-segment-routing-te-policy-policy100] candidate-path preference 100 [*PE1-segment-routing-te-policy-policy100-path] segment-list pe1backup [*PE1-segment-routing-te-policy-policy100-path] quit [*PE1-segment-routing-te-policy-policy100] candidate-path preference 200 [*PE1-segment-routing-te-policy-policy100-path] segment-list pe1 [*PE1-segment-routing-te-policy-policy100-path] quit [*PE1-segment-routing-te-policy-policy100] quit [*PE1-segment-routing] quit [*PE1] commit
# Configure PE2.
[~PE2] segment-routing [~PE2-segment-routing] segment-list pe2 [*PE2-segment-routing-segment-list-pe2] index 10 sid label 330000 [*PE2-segment-routing-segment-list-pe2] index 20 sid label 330003 [*PE2-segment-routing-segment-list-pe2] quit [*PE2-segment-routing] segment-list pe2backup [*PE2-segment-routing-segment-list-pe2backup] index 10 sid label 330001 [*PE2-segment-routing-segment-list-pe2backup] index 20 sid label 330002 [*PE2-segment-routing-segment-list-pe2backup] quit [*PE2-segment-routing] sr-te policy policy200 endpoint 1.1.1.9 color 200 [*PE2-segment-routing-te-policy-policy200] binding-sid 115 [*PE2-segment-routing-te-policy-policy200] mtu 1000 [*PE2-segment-routing-te-policy-policy200] candidate-path preference 100 [*PE2-segment-routing-te-policy-policy200-path] segment-list pe2backup [*PE2-segment-routing-te-policy-policy200-path] quit [*PE2-segment-routing-te-policy-policy200] candidate-path preference 200 [*PE2-segment-routing-te-policy-policy200-path] segment-list pe2 [*PE2-segment-routing-te-policy-policy200-path] quit [*PE2-segment-routing-te-policy-policy200] quit [*PE2-segment-routing] quit [*PE2] commit
After the configuration is complete, run the display sr-te policy command to check SR-MPLS TE Policy information. The following example uses the command output on PE1.
[~PE1] display sr-te policy PolicyName : policy100 Endpoint : 3.3.3.9 Color : 100 TunnelId : 1 TunnelType : SR-TE Policy Binding SID : 115 MTU : 1000 Policy State : Up State Change Time : 2019-11-22 16:45:09 Admin State : Up Traffic Statistics : Disable BFD : Disable Backup Hot-Standby : Disable DiffServ-Mode : - Candidate-path Count : 2 Candidate-path Preference: 200 Path State : Active Path Type : Primary Protocol-Origin : Configuration(30) Originator : 0, 0.0.0.0 Discriminator : 200 Binding SID : - GroupId : 2 Policy Name : policy100 Template ID : - Segment-List Count : 1 Segment-List : pe1 Segment-List ID : 129 XcIndex : 68 List State : Up BFD State : - EXP : - TTL : - DeleteTimerRemain : - Weight : 1 Label : 330000, 330002 Candidate-path Preference: 100 Path State : Inactive (Valid) Path Type : - Protocol-Origin : Configuration(30) Originator : 0, 0.0.0.0 Discriminator : 100 Binding SID : - GroupId : 1 Policy Name : policy100 Template ID : - Segment-List Count : 1 Segment-List : pe1backup Segment-List ID : 194 XcIndex : - List State : Up BFD State : - EXP : - TTL : - DeleteTimerRemain : - Weight : 1 Label : 330001, 330003
- Configure SBFD and HSB.
# Configure 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
# Configure 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
- Configure a route-policy.
# Configure PE1.
[~PE1] route-policy color100 permit node 1 [*PE1-route-policy] apply extcommunity color 0:100 [*PE1-route-policy] quit [*PE1] commit
# Configure PE2.
[~PE2] route-policy color200 permit node 1 [*PE2-route-policy] apply extcommunity color 0:200 [*PE2-route-policy] quit [*PE2] commit
- Establish an MP-IBGP peer relationship between PEs and enable them to advertise labeled routes. Apply an import route-policy to a specified BGP4+ peer, and set the Color Extended Community.
# Configure 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
# Configure 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
After the configuration is complete, run the display bgp ipv6 peer command on the PEs to check whether the BGP peer relationship has been established. If the Established state is displayed in the command output, the BGP peer relationship has been established successfully. The following example uses the command output on PE1.
[~PE1] display bgp ipv6 peer BGP local router ID : 1.1.1.9 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 - Configure a tunnel selection policy on each PE for the specified SR-MPLS TE Policy to be preferentially selected.
# Configure 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] 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
# Configure 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] 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
- Establish an EBGP peer relationship between each CE-PE pair.
# Configure CE1.
<HUAWEI> system-view [~HUAWEI] sysname CE1 [*HUAWEI] commit [~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] ipv6 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] commit
The configuration of CE2 is similar to the configuration of CE1. For configuration details, see "Configuration Files" in this section.
# Configure 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] quit
The configuration of PE2 is similar to the configuration of PE1. For configuration details, see "Configuration Files" in this section.
After completing the configuration, run the display bgp ipv6 peer command on each PE. The following example uses the peer relationship between PE1 and CE1. The command output shows that a BGP4+ peer relationship has been established between the PE and CE and is in the Established state.
[~PE1] display bgp ipv6 peer BGP local router ID : 1.1.1.9 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 - Verify the configuration.
After completing the configuration, run the display ipv6 routing-table command on each PE to check information about the loopback interface route toward a CE.
The following example uses the command output on PE1.
[~PE1] display ipv6 routing-table Routing 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 : GigabitEthernet0/1/8 Flags : D Destination : 2001:DB8::1:2 PrefixLength : 128 NextHop : ::1 Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : GigabitEthernet0/1/8 Flags : D Destination : 2001:DB8::11:1 PrefixLength : 128 NextHop : 2001:DB8::1:1 Preference : 255 Cost : 0 Protocol : EBGP RelayNextHop : 2001:DB8::1:1 TunnelID : 0x0 Interface : GigabitEthernet0/1/8 Flags : RD Destination : 2001:DB8::22:2 PrefixLength : 128 NextHop : ::FFFF:3.3.3.9 Preference : 255 Cost : 0 Protocol : IBGP RelayNextHop : 2001:DB8::1:1 TunnelID : 0x000000003200000001 Interface : policy100 Flags : RD Destination : FE80:: PrefixLength : 10 NextHop : :: Preference : 0 Cost : 0 Protocol : Direct RelayNextHop : :: TunnelID : 0x0 Interface : NULL0 Flags : DB
Run the display ipv6 routing-table verbose command on each PE to check details about the loopback interface route toward a CE.
The following example uses the command output on PE1.
[~PE1] display ipv6 routing-table 2001:db8:22::2 verbose Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route ------------------------------------------------------------------------------ Routing Table : _public_ Summary Count : 1 Destination : 2001:DB8::22:2 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 : policy100 Flags : RD
The command output shows that the BGP4+ route has been successfully recursed to the specified SR-MPLS TE Policy.
CEs can ping each other. For example, CE1 can ping CE2 at 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
Configuration Files
PE1 configuration file
# 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 200 segment-list pe1 candidate-path preference 100 segment-list pe1backup # 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 GigabitEthernet0/1/8 undo shutdown ipv6 enable ipv6 address 2001:DB8::1:2/96 # interface GigabitEthernet0/1/16 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 configuration file
# sysname P1 # mpls lsr-id 2.2.2.9 # mpls # segment-routing ipv4 adjacency local-ip-addr 10.12.1.1 remote-ip-addr 10.12.1.2 sid 330002 ipv4 adjacency local-ip-addr 10.11.1.2 remote-ip-addr 10.11.1.1 sid 330003 # 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 GigabitEthernet0/1/8 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 configuration file
# 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 200 segment-list pe2 candidate-path preference 100 segment-list pe2backup # 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 GigabitEthernet0/1/8 undo shutdown ipv6 enable ipv6 address 2001:DB8::2:2/96 # interface GigabitEthernet0/1/16 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 configuration file
# 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 GigabitEthernet0/1/8 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 configuration file
# sysname CE1 # interface GigabitEthernet0/1/0 undo shutdown ipv6 enable ipv6 address 2001:DB8::1:1/96 # interface LoopBack1 ipv6 enable ipv6 address 2001:DB8::11:1/128 # bgp 65410 router-id 10.10.10.10 peer 2001:DB8::1:2 as-number 100 # ipv6-family unicast undo synchronization network 2001:DB8::11:1 128 peer 2001:DB8::1:2 enable # returnCE2 configuration file
# sysname CE2 # interface GigabitEthernet0/1/0 undo shutdown ipv6 enable ipv6 address 2001:DB8::2:1/96 # interface LoopBack1 ipv6 enable ipv6 address 2001:DB8::22:2/128 # bgp 65420 router-id 10.20.20.20 peer 2001:DB8::2:2 as-number 100 # ipv6-family unicast undo synchronization network 2001:DB8::22:2 128 peer 2001:DB8::2:2 enable # return