Example for Configuring SRv6 TE Policy over GRE
This section provides an example for configuring an SRv6 TE Policy over a GRE tunnel.
Networking Requirements
On the network shown in Figure 1, some of the devices among P1, P2, and P3 do not support IPv6. It is required that a bidirectional SRv6 TE Policy be deployed between PE1 and PE2. To meet the preceding requirement, you can establish a GRE tunnel between P1 and P3, and then deploy an SRv6 TE Policy over the GRE tunnel.
Configuration Roadmap
The configuration roadmap is as follows:
Configure IP addresses for interfaces.
- Configure OSPF on P1, P2, and P3, and establish a GRE tunnel between P1 and P3.
Enable IS-IS, configure an IS-IS level, and specify a network entity title (NET) on PE1, PE2, P1, and P3.
- Configure IS-IS to advertise SRv6 locator routes and also configure static End.X SIDs on PE1, PE2, P1, and P3.
Deploy an SRv6 TE Policy between PE1 and PE2.
Precautions
During the configuration process, note the following:
- SRv6 TE Policy over GRE configuration in this example requires you to configure IPv6 interface addresses for the GRE tunnel and enable IS-IS. In addition, during End.X SID configuration, you can specify a GRE tunnel interface as the outbound interface.
Data Preparation
To complete the configuration, you need the following data:
- IP/IPv6 addresses on each device
IS-IS process IDs, IS-IS levels, and NETs of PE1, PE2, P1, and P3
Procedure
- Configure IP/IPv6 addresses for interfaces.
# Configure PE1.
<HUAWEI> system-view [~HUAWEI] sysname PE1 [*HUAWEI] commit [~PE1] interface gigabitethernet 0/1/0 [~PE1-GigabitEthernet0/1/0] ipv6 enable [*PE1-GigabitEthernet0/1/0] ipv6 address 2001:DB8:1::2 96 [*PE1-GigabitEthernet0/1/0] quit [*PE1] interface LoopBack 1 [*PE1-LoopBack1] ipv6 enable [*PE1-LoopBack1] ipv6 address 2001:DB8:111::1 128 [*PE1-LoopBack1] quit [*PE1] commit
# Configure P1.
<HUAWEI> system-view [~HUAWEI] sysname P1 [*HUAWEI] commit [~P1] interface gigabitethernet 0/1/0 [~P1-GigabitEthernet0/1/0] ip address 172.16.1.1 24 [*P1-GigabitEthernet0/1/0] quit [*P1] interface gigabitethernet 0/1/8 [*P1-GigabitEthernet0/1/8] ipv6 enable [*P1-GigabitEthernet0/1/8] ipv6 address 2001:DB8:1::1 96 [*P1-GigabitEthernet0/1/8] quit [*P1] interface LoopBack 1 [*P1-LoopBack1] ip address 2.2.2.9 32 [*P1-LoopBack1] ipv6 enable [*P1-LoopBack1] ipv6 address 2001:DB8:222::2 128 [*P1-LoopBack1] quit [*P1] commit
# Configure P2.
<HUAWEI> system-view [~HUAWEI] sysname P2 [*HUAWEI] commit [~P2] interface gigabitethernet 0/1/0 [~P2-GigabitEthernet0/1/0] ip address 172.16.1.2 24 [*P2-GigabitEthernet0/1/0] quit [*P2] interface gigabitethernet 0/1/8 [*P2-GigabitEthernet0/1/8] ip address 172.16.2.1 24 [*P2-GigabitEthernet0/1/8] quit [*P2] commit
# Configure P3.
<HUAWEI> system-view [~HUAWEI] sysname P3 [*HUAWEI] commit [~P3] interface gigabitethernet 0/1/0 [~P3-GigabitEthernet0/1/0] ip address 172.16.2.2 24 [*P3-GigabitEthernet0/1/0] quit [*P3] interface gigabitethernet 0/1/8 [*P3-GigabitEthernet0/1/8] ipv6 enable [*P3-GigabitEthernet0/1/8] ipv6 address 2001:DB8:3::1 96 [*P3-GigabitEthernet0/1/8] quit [*P3] interface LoopBack 1 [*P3-LoopBack1] ip address 3.3.3.9 32 [*P3-LoopBack1] ipv6 enable [*P3-LoopBack1] ipv6 address 2001:DB8:333::3 128 [*P3-LoopBack1] quit [*P3] commit
# Configure PE2.
<HUAWEI> system-view [~HUAWEI] sysname PE1 [*HUAWEI] commit [~PE2] interface gigabitethernet 0/1/0 [~PE2-GigabitEthernet0/1/0] ipv6 enable [*PE2-GigabitEthernet0/1/0] ipv6 address 2001:DB8:3::2 96 [*PE2-GigabitEthernet0/1/0] quit [*PE2] interface LoopBack 1 [*PE2-LoopBack1] ipv6 enable [*PE2-LoopBack1] ipv6 address 2001:DB8:444::4 128 [*PE2-LoopBack1] quit [*PE2] commit
- Establish a GRE tunnel between P1 and P3.
# Configure P1.
[~P1] ospf 1 [*P1-ospf-1] area 0.0.0.0 [*P1-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0 [*P1-ospf-1-area-0.0.0.0] network 172.16.1.0 0.0.0.255 [*P1-ospf-1-area-0.0.0.0] quit [*P1-ospf-1] quit [*P1] interface LoopBack1 [*P1-LoopBack1] binding tunnel gre [*P1-LoopBack1] quit [*P1] interface Tunnel10 [*P1-Tunnel10] tunnel-protocol gre [*P1-Tunnel10] source 2.2.2.9 [*P1-Tunnel10] destination 3.3.3.9 [*P1-Tunnel10] ipv6 enable [*P1-Tunnel10] ipv6 address 2001:DB8:2::1 96 [*P1-Tunnel10] quit [*P1] commit
# Configure P2.
[~P2] ospf 1 [*P2-ospf-1] area 0.0.0.0 [*P2-ospf-1-area-0.0.0.0] network 172.16.1.0 0.0.0.255 [*P2-ospf-1-area-0.0.0.0] network 172.16.2.0 0.0.0.255 [*P2-ospf-1-area-0.0.0.0] quit [*P2-ospf-1] quit [*P2] commit
# Configure P3.
[~P3] ospf 1 [*P3-ospf-1] area 0.0.0.0 [*P3-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0 [*P3-ospf-1-area-0.0.0.0] network 172.16.2.0 0.0.0.255 [*P3-ospf-1-area-0.0.0.0] quit [*P3-ospf-1] quit [*P3] interface LoopBack1 [*P3-LoopBack1] binding tunnel gre [*P3-LoopBack1] quit [*P3] interface Tunnel10 [*P3-Tunnel10] tunnel-protocol gre [*P3-Tunnel10] source 3.3.3.9 [*P3-Tunnel10] destination 2.2.2.9 [*P3-Tunnel10] ipv6 enable [*P3-Tunnel10] ipv6 address 2001:DB8:2::2 96 [*P3-Tunnel10] quit [*P3] commit
After the configuration is complete, run the display interface tunnel command. The command output shows that the tunnel interface state is up. The following example uses the command output on P1.
[~P1] display interface tunnel 10 Tunnel10 current state : UP (ifindex: 30) Line protocol current state : DOWN Description: Route Port,The Maximum Transmit Unit is 1500 Internet protocol processing : disabled Encapsulation is TUNNEL, loopback not set Tunnel source 2.2.2.9 (LoopBack1), destination 3.3.3.9 Tunnel protocol/transport GRE/IP, key disabled keepalive disabled Checksumming of packets disabled Current system time: 2021-05-13 09:25:47 300 seconds input rate 0 bits/sec, 0 packets/sec 300 seconds output rate 0 bits/sec, 0 packets/sec 0 seconds input rate 0 bits/sec, 0 packets/sec 0 seconds output rate 0 bits/sec, 0 packets/sec 19403 packets input, 2369471 bytes 0 input error 19494 packets output, 2552122 bytes 0 output error Input: Unicast: 2277 packets, Multicast: 0 packets Output: Unicast: 19494 packets, Multicast: 0 packets Input bandwidth utilization : 0% Output bandwidth utilization : 0%Run the display tunnel-info all command to check all tunnel information. The following example uses the command output on P1.
[~P1] display tunnel-info all Tunnel ID Type Destination Status ---------------------------------------------------------------------------------------- 0x00000000050000001e gre 3.3.3.9 UP - Configure IS-IS.
# Configure PE1.
[~PE1] isis 1 [*PE1-isis-1] is-level level-2 [*PE1-isis-1] cost-style wide [*PE1-isis-1] network-entity 00.0005.0000.0000.0001.00 [*PE1-isis-1] traffic-eng level-2 [*PE1-isis-1] ipv6 enable topology ipv6 [*PE1-isis-1] quit [*PE1] interface gigabitethernet 0/1/0 [*PE1-GigabitEthernet0/1/0] isis ipv6 enable 1 [*PE1-GigabitEthernet0/1/0] quit [*PE1] interface loopback1 [*PE1-LoopBack1] isis ipv6 enable 1 [*PE1-LoopBack1] commit [~PE1-LoopBack1] quit
# Configure P1.
[~P1] isis 1 [*P1-isis-1] is-level level-2 [*P1-isis-1] cost-style wide [*P1-isis-1] network-entity 00.0005.0000.0000.0002.00 [*P1-isis-1] traffic-eng level-2 [*P1-isis-1] ipv6 enable topology ipv6 [*P1-isis-1] quit [*P1] interface Tunnel10 [*P1-Tunnel10] isis ipv6 enable 1 [*P1-Tunnel10] quit [*P1] interface gigabitethernet 0/1/8 [*P1-GigabitEthernet0/1/8] isis ipv6 enable 1 [*P1-GigabitEthernet0/1/8] quit [*P1] interface loopback1 [*P1-LoopBack1] isis ipv6 enable 1 [*P1-LoopBack1] commit [~P1-LoopBack1] quit
# Configure P3.
[~P3] isis 1 [*P3-isis-1] is-level level-2 [*P3-isis-1] cost-style wide [*P3-isis-1] network-entity 00.0005.0000.0000.0003.00 [*P3-isis-1] traffic-eng level-2 [*P3-isis-1] ipv6 enable topology ipv6 [*P3-isis-1] quit [*P3] interface Tunnel10 [*P3-Tunnel10] isis ipv6 enable 1 [*P3-Tunnel10] quit [*P3] interface gigabitethernet 0/1/8 [*P3-GigabitEthernet0/1/8] isis ipv6 enable 1 [*P3-GigabitEthernet0/1/8] quit [*P3] interface loopback1 [*P3-LoopBack1] isis ipv6 enable 1 [*P3-LoopBack1] commit [~P3-LoopBack1] quit
# Configure PE2.
[~PE2] isis 1 [*PE2-isis-1] is-level level-2 [*PE2-isis-1] cost-style wide [*PE2-isis-1] network-entity 00.0005.0000.0000.0004.00 [*PE2-isis-1] traffic-eng level-2 [*PE2-isis-1] ipv6 enable topology ipv6 [*PE2-isis-1] quit [*PE2] interface gigabitethernet 0/1/0 [*PE2-GigabitEthernet0/1/0] isis ipv6 enable 1 [*PE2-GigabitEthernet0/1/0] quit [*PE2] interface loopback1 [*PE2-LoopBack1] isis ipv6 enable 1 [*PE2-LoopBack1] commit [~PE2-LoopBack1] quit
After the configuration is complete, perform the following operations to check whether IS-IS is successfully configured.
# Display IS-IS neighbor information. The following example uses the command output on PE1.
[~PE1] display isis peer Peer information for ISIS(1) System Id Interface Circuit Id State HoldTime Type PRI -------------------------------------------------------------------------------- 0000.0000.0002* GE0/1/0 0000.0000.0001.01 Up 22s L2 64 Total Peer(s): 1
# Display IS-IS routing information. The following example uses the command output on PE1.
[~PE1] display isis route Route information for ISIS(1) ----------------------------- ISIS(1) Level-2 Forwarding Table -------------------------------- IPV6 Dest. ExitInterface NextHop Cost Flags -------------------------------------------------------------------------------- 2001:DB8:1::/96 GE0/1/0 Direct 10 D/-/L/- 2001:DB8:2::/96 GE0/1/0 FE80::3AB0:9EFF:FE11:300 20 A/-/-/- 2001:DB8:3::/96 GE0/1/0 FE80::3AB0:9EFF:FE11:300 30 A/-/-/- 2001:DB8:10::/64 NULL0 - 0 A/-/L/- 2001:DB8:20::/64 GE0/1/0 FE80::3AB0:9EFF:FE11:300 10 A/-/-/- 2001:DB8:30::/64 GE0/1/0 FE80::3AB0:9EFF:FE11:300 20 A/-/-/- 2001:DB8:40::/64 GE0/1/0 FE80::3AB0:9EFF:FE11:300 30 A/-/-/- 2001:DB8:111::1/128 Loop1 Direct 0 D/-/L/- 2001:DB8:222::2/128 GE0/1/0 FE80::3AB0:9EFF:FE11:300 10 A/-/-/- 2001:DB8:333::3/128 GE0/1/0 FE80::3AB0:9EFF:FE11:300 20 A/-/-/- 2001:DB8:444::4/128 GE0/1/0 FE80::3AB0:9EFF:FE11:300 30 A/-/-/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set, LP-Local Prefix-Sid Protect Type: L-Link Protect, N-Node Protect
- Configure IS-IS to advertise SRv6 locator routes and also configure static End.X SIDs.
# Configure PE1.
[~PE1] segment-routing ipv6 [*PE1-segment-routing-ipv6] encapsulation source-address 2001:DB8:111::1 [*PE1-segment-routing-ipv6] locator as1 ipv6-prefix 2001:DB8:10:: 64 static 32 [*PE1-segment-routing-ipv6-locator] opcode ::100 end-x interface GigabitEthernet0/1/0 nexthop 2001:DB8:1::1 psp [*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
# Configure P1.
[~P1] segment-routing ipv6 [*P1-segment-routing-ipv6] encapsulation source-address 2001:DB8:222::2 [*P1-segment-routing-ipv6] locator as1 ipv6-prefix 2001:DB8:20:: 64 static 32 [*P1-segment-routing-ipv6-locator] opcode ::100 end-x interface Tunnel10 nexthop 2001:DB8:2::2 psp [*P1-segment-routing-ipv6-locator] opcode ::200 end-x interface GigabitEthernet0/1/0 nexthop 2001:DB8:1::2 psp [*P1-segment-routing-ipv6-locator] quit [*P1-segment-routing-ipv6] quit [*P1] isis 1 [*P1-isis-1] ipv6 enable topology ipv6 [*P1-isis-1] segment-routing ipv6 locator as1 auto-sid-disable [*P1-isis-1] commit [~P1-isis-1] quit
# Configure P3.
[~P3] segment-routing ipv6 [*P3-segment-routing-ipv6] encapsulation source-address 2001:DB8:333::3 [*P3-segment-routing-ipv6] locator as1 ipv6-prefix 2001:DB8:30:: 64 static 32 [*P3-segment-routing-ipv6-locator] opcode ::100 end-x interface GigabitEthernet0/1/0 nexthop 2001:DB8:3::2 psp [*P3-segment-routing-ipv6-locator] opcode ::200 end-x interface Tunnel10 nexthop 2001:DB8:2::1 psp [*P3-segment-routing-ipv6-locator] quit [*P3-segment-routing-ipv6] quit [*P3] isis 1 [*P3-isis-1] ipv6 enable topology ipv6 [*P3-isis-1] segment-routing ipv6 locator as1 auto-sid-disable [*P3-isis-1] commit [~P3-isis-1] quit
# Configure PE2.
[~PE2] segment-routing ipv6 [*PE2-segment-routing-ipv6] encapsulation source-address 2001:DB8:444::4 [*PE2-segment-routing-ipv6] locator as1 ipv6-prefix 2001:DB8:40:: 64 static 32 [*PE2-segment-routing-ipv6-locator] opcode ::200 end-x interface GigabitEthernet0/1/0 nexthop 2001:DB8:3::1 psp [*PE2-segment-routing-ipv6-locator] quit [*PE2-segment-routing-ipv6] quit [*PE2] isis 1 [*PE2-isis-1] ipv6 enable topology ipv6 [*PE2-isis-1] segment-routing ipv6 locator as1 auto-sid-disable [*PE2-isis-1] commit [~PE2-isis-1] quit
Run the display segment-routing ipv6 local-sid end-x forwarding command to check information about the SRv6 local SID table. The following example uses the command output on PE1.
[~PE1] display segment-routing ipv6 local-sid end-x forwarding My Local-SID End.X Forwarding Table ----------------------------------- SID : 2001:DB8:10::100/128 FuncType : End.X Flavor : PSP LocatorName : as1 LocatorID : 1 ProtocolType: STATIC ProcessID : -- UpdateTime : 2021-05-13 04:26:13.408 NextHop : Interface : ExitIndex: 2001:DB8:1::1 GigabitEthernet0/1/0 0x00000007 Total SID(s): 1 - Configure an SRv6 TE Policy.
# Configure PE1.
[~PE1] segment-routing ipv6 [~PE1-segment-routing-ipv6] segment-list list1 [*PE1-segment-routing-ipv6-segment-list-list1] index 5 sid ipv6 2001:DB8:10::100 [*PE1-segment-routing-ipv6-segment-list-list1] index 10 sid ipv6 2001:DB8:20::100 [*PE1-segment-routing-ipv6-segment-list-list1] index 15 sid ipv6 2001:DB8:30::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 2001:DB8:444::4 color 101 [*PE1-segment-routing-ipv6-policy-policy1] binding-sid 2001:DB8:10::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
# Configure PE2.
[~PE2] segment-routing ipv6 [~PE2-segment-routing-ipv6] segment-list list1 [*PE2-segment-routing-ipv6-segment-list-list1] index 5 sid ipv6 2001:DB8:40::200 [*PE2-segment-routing-ipv6-segment-list-list1] index 10 sid ipv6 2001:DB8:30::200 [*PE2-segment-routing-ipv6-segment-list-list1] index 15 sid ipv6 2001:DB8:20::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 2001:DB8:111::1 color 101 [*PE2-segment-routing-ipv6-policy-policy1] binding-sid 2001:DB8:40::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
After the configuration is complete, run the display srv6-te policy command to check SRv6 TE Policy information.
The following example uses the command output on PE1.
[~PE1] display srv6-te policy PolicyName : policy1 Color : 101 Endpoint : 2001:DB8:444::4 TunnelId : 1 Binding SID : 2001:DB8:10::1000 TunnelType : SRv6-TE Policy DelayTimerRemain : - Policy State : Up State Change Time : 2021-05-13 04:26:18 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 : 2001:DB8:10::1000 GroupId : 1 Policy Name : policy1 Template ID : 0 Path Verification : Disable DelayTimerRemain : - Network Slice ID : - Compute Source : - 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 : - Network Slice ID : - Compute Source : - SID : 2001:DB8:10::100 2001:DB8:20::100 2001:DB8:30::100 - Verify the configuration.
# Configure an End.OP SID on PE1.
[~PE1] segment-routing ipv6 [*PE1-segment-routing-ipv6] locator as1 [*PE1-segment-routing-ipv6-locator] opcode ::1111 end-op [*PE1-segment-routing-ipv6-locator] quit [*PE1-segment-routing-ipv6] quit [*PE1] commit
# Configure an End.OP SID on PE2.
[~PE2] segment-routing ipv6 [*PE2-segment-routing-ipv6] locator as1 [*PE2-segment-routing-ipv6-locator] opcode ::4444 end-op [*PE2-segment-routing-ipv6-locator] quit [*PE2-segment-routing-ipv6] quit [*PE2] commit
Run the ping srv6-te policy command on PE1 to check the SRv6 TE Policy connectivity. For example:
[~PE1] ping srv6-te policy policy-name policy1 end-op 2001:DB8:40::4444 PING srv6-te policy : 100 data bytes, press CTRL_C to break srv6-te policy's segment list: Preference: 100; Path Type: primary; Protocol-Origin: local; Originator: 0, 0.0.0.0; Discriminator: 100; Segment-List ID: 1; Xcindex: 1; end-op: 2001:DB8:40::4444 Reply from 2001:DB8:40::4444 bytes=100 Sequence=1 time=3 ms Reply from 2001:DB8:40::4444 bytes=100 Sequence=2 time=3 ms Reply from 2001:DB8:40::4444 bytes=100 Sequence=3 time=3 ms Reply from 2001:DB8:40::4444 bytes=100 Sequence=4 time=3 ms Reply from 2001:DB8:40::4444 bytes=100 Sequence=5 time=4 ms --- srv6-te policy ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 3/3/4 msRun the ping srv6-te policy command on PE2 to check the SRv6 TE Policy connectivity. For example:
[~PE2] ping srv6-te policy policy-name policy1 end-op 2001:DB8:10::1111 PING srv6-te policy : 100 data bytes, press CTRL_C to break srv6-te policy's segment list: Preference: 100; Path Type: primary; Protocol-Origin: local; Originator: 0, 0.0.0.0; Discriminator: 100; Segment-List ID: 1; Xcindex: 1; end-op: 2001:DB8:10::1111 Reply from 2001:DB8:10::1111 bytes=100 Sequence=1 time=4 ms Reply from 2001:DB8:10::1111 bytes=100 Sequence=2 time=3 ms Reply from 2001:DB8:10::1111 bytes=100 Sequence=3 time=4 ms Reply from 2001:DB8:10::1111 bytes=100 Sequence=4 time=3 ms Reply from 2001:DB8:10::1111 bytes=100 Sequence=5 time=3 ms --- srv6-te policy ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 3/3/4 ms
Configuration Files
PE1 configuration file
# sysname PE1 # segment-routing ipv6 encapsulation source-address 2001:DB8:111::1 locator as1 ipv6-prefix 2001:DB8:10:: 64 static 32 opcode ::100 end-x interface GigabitEthernet0/1/0 nexthop 2001:DB8:1::1 psp opcode ::1111 end-op srv6-te-policy locator as1 segment-list list1 index 5 sid ipv6 2001:DB8:10::100 index 10 sid ipv6 2001:DB8:20::100 index 15 sid ipv6 2001:DB8:30::100 srv6-te policy policy1 endpoint 2001:DB8:444::4 color 101 binding-sid 2001:DB8:10::1000 candidate-path preference 100 segment-list list1 # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0001.00 traffic-eng level-2 # ipv6 enable topology ipv6 segment-routing ipv6 locator as1 auto-sid-disable # # interface GigabitEthernet0/1/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:1::2/96 isis ipv6 enable 1 # interface LoopBack1 ipv6 enable ipv6 address 2001:DB8:111::1/128 isis ipv6 enable 1 # return
P1 configuration file
# sysname P1 segment-routing ipv6 encapsulation source-address 2001:DB8:222::2 locator as1 ipv6-prefix 2001:DB8:20:: 64 static 32 opcode ::100 end-x interface Tunnel10 nexthop 2001:DB8:2::2 psp opcode ::200 end-x interface GigabitEthernet0/1/8 nexthop 2001:DB8:1::2 psp # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0002.00 traffic-eng level-2 # ipv6 enable topology ipv6 segment-routing ipv6 locator as1 auto-sid-disable # # interface GigabitEthernet0/1/0 undo shutdown ip address 172.16.1.1 255.255.255.0 # interface GigabitEthernet0/1/8 undo shutdown ipv6 enable ipv6 address 2001:DB8:1::1/96 isis ipv6 enable 1 # interface LoopBack1 ipv6 enable ip address 2.2.2.9 255.255.255.255 ipv6 address 2001:DB8:222::2/128 isis ipv6 enable 1 binding tunnel gre # interface Tunnel10 ipv6 enable ipv6 address 2001:DB8:2::1/96 tunnel-protocol gre source 2.2.2.9 destination 3.3.3.9 isis ipv6 enable 1 # ospf 1 opaque-capability enable area 0.0.0.0 network 2.2.2.9 0.0.0.0 network 172.16.1.0 0.0.0.255 # return
- P2 configuration file
# sysname P2 # interface GigabitEthernet0/1/0 undo shutdown ip address 172.16.1.2 255.255.255.0 # interface GigabitEthernet0/1/8 undo shutdown ip address 172.16.2.1 255.255.255.0 # ospf 1 opaque-capability enable area 0.0.0.0 network 172.16.1.0 0.0.0.255 network 172.16.2.0 0.0.0.255
P3 configuration file
# sysname P3 # segment-routing ipv6 encapsulation source-address 2001:DB8:333::3 locator as1 ipv6-prefix 2001:DB8:30:: 64 static 32 opcode ::100 end-x interface GigabitEthernet0/1/8 nexthop 2001:DB8:3::2 psp opcode ::200 end-x interface Tunnel10 nexthop 2001:DB8:2::1 psp # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0003.00 traffic-eng level-2 # ipv6 enable topology ipv6 segment-routing ipv6 locator as1 auto-sid-disable # # interface GigabitEthernet0/1/0 undo shutdown ip address 172.16.2.2 255.255.255.0 # interface GigabitEthernet0/1/8 undo shutdown ipv6 enable ipv6 address 2001:DB8:3::1/96 isis ipv6 enable 1 # interface LoopBack1 ipv6 enable ip address 3.3.3.9 255.255.255.255 ipv6 address 2001:DB8:333::3/128 isis ipv6 enable 1 binding tunnel gre # interface Tunnel10 ipv6 enable ipv6 address 2001:DB8:2::2/96 tunnel-protocol gre source 3.3.3.9 destination 2.2.2.9 isis ipv6 enable 1 # ospf 1 opaque-capability enable area 0.0.0.0 network 3.3.3.9 0.0.0.0 network 172.16.2.0 0.0.0.255 # return
PE2 configuration file
# sysname PE2 # segment-routing ipv6 encapsulation source-address 2001:DB8:444::4 locator as1 ipv6-prefix 2001:DB8:40:: 64 static 32 opcode ::200 end-x interface GigabitEthernet0/1/0 nexthop 2001:DB8:3::1 psp opcode ::4444 end-op srv6-te-policy locator as1 segment-list list1 index 5 sid ipv6 2001:DB8:40::200 index 10 sid ipv6 2001:DB8:30::200 index 15 sid ipv6 2001:DB8:20::200 srv6-te policy policy1 endpoint 2001:DB8:111::1 color 101 binding-sid 2001:DB8:40::1000 candidate-path preference 100 segment-list list1 # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0004.00 traffic-eng level-2 # ipv6 enable topology ipv6 segment-routing ipv6 locator as1 auto-sid-disable # # interface GigabitEthernet0/1/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:3::2/96 isis ipv6 enable 1 # interface LoopBack1 ipv6 enable ipv6 address 2001:DB8:444::4/128 isis ipv6 enable 1 # return