| Parameter | Description | Value |
|---|---|---|
| policy-name policyName |
Specifies the name of an SRv6 TE Policy. |
The value is a string of 1 to 31 case-sensitive characters. It cannot contain spaces. |
| endpoint-ip endpointIpv6 |
Specifies the destination address of an SRv6 TE Policy. |
The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X. |
| color colorId |
Specifies a color value for an SRv6 TE Policy. This parameter applies to the scenario where traffic is diverted to an SRv6 TE Policy based on the color value. |
The value is an integer that ranges from 0 to 4294967295. |
| binding-sid bsid |
Specifies a binding SID for an SRv6 TE Policy. End.B6 type defined in a binding SID, which is used in scenarios such as SRv6 TE Policy import, tunnel interworking, and SD-WAN route selection. |
The value is a 32-digit hexadecimal number, in the format X:X:X:X:X:X:X:X. |
| force-match-slice |
Forcibly matches slices and takes effect only for segment lists with slice attributes. |
- |
| end-op endOp |
Specifies the type of an End.OP segment ID. If no remote end-op is configured, you can manually specify an End.OP SID. If the last SID in an SRv6 TE Policy Segment List is an End.X SID or Binding SID, the configured remote end-op does not take effect, when initiating a ping srv6-te policy, you also need to manually specify the End.OP SID or destination. |
The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X. |
| destination dest |
Local IPv6 address or SRv6 local SID of the destination. |
The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X. |
| -a sourceAddr6 |
Specifies a source IPv6 address. |
The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X. |
| -f initHl |
Specifies an initial hop limit. |
The value is an integer ranging from 1 to 255. The default value is 1. |
| -m maxHl |
Specifies a maximum hop limit. |
The value is an integer ranging from 1 to 255. The default value is 30. |
| -s packetSize |
Specifies the payload length of an ICMP echo request message. |
The value is an integer ranging from 65 to 9600. The default value is 100. |
| -w timeout |
Specifies a timeout time for waiting for the response to an ICMP echo request message. |
The value is an integer that ranges from 1 to 65535. The default value is 2000 ms. |
| -p destPort |
Specifies a destination UDP port number. |
The value is an integer ranging from 1 to 65535. |
| -tc tc |
Specifies a traffic class for ICMP echo request messages to be sent. |
The value is an integer ranging from 0 to 255. The default value is 0. |
Usage Scenario
On an SRv6 TE Policy network, if data forwarding fails over the SRv6 TE Policy, the control plane for SRv6 establishment cannot detect this failure, making network maintenance difficult. The SRv6 TE Policy tracert mechanism can be used to detect such faults and locate faulty nodes. This mechanism is implemented using the tracert srv6-te policy command. To test the nodes through which an SRv6 TE Policy passes, run the tracert srv6-te policy command. The command output can be used for fault diagnosis.
Prerequisites
SRv6 has been enabled on the device and is working properly.
Precautions
If the segment list changes during the SRv6 TE Policy tracert test, the tracert results may be inaccurate. It is recommended that you press Ctrl+C to stop and then re-initiate a tracert operation.
If neither IPv6 router ID nor the encapsulation source-address command is configured, you are advised to use the -a parameter to specify the source address. Otherwise, the test may fail. In a non-TE FRR scenario, the ingress of an SRv6 TE Policy cannot have more than one local END SID. Otherwise, the tracert operation may fail. During BSID encapsulation, the newly encapsulated IPv6 header does not inherit the inner TTL value. As a result, the transit paths may not be displayed in the tracert command output.<HUAWEI> tracert srv6-te policy policy-name abc end-op 2001:db8:2::1 -a 2001:db8:1::1 -p 5 -m 20 -tc 0
Trace Route srv6-te policy : 100 data bytes, press CTRL_C to break
srv6-te policy's segment list:
Preference: 200; Path Type: primary; Protocol-Origin: local; Originator: 0, 0.0.0.0; Discriminator: 200; Segment-List ID: 1; Xcindex: 1; end-op: 2001:DB8:2::1
TTL Replier Time Type SRH
0 Ingress <SRH: 2001:DB8:1::F:1, 2001:DB8:2::F:1, 2001:DB8:2::1, SL=2>
1 2001:DB8:A::192:168:103:2 22 ms Transit <SRH: 2001:DB8:1::F:1, 2001:DB8:2::F:1, 2001:DB8:2::1, SL=2>
2 2001:DB8:A::192:168:106:2 10 ms Transit <SRH: 2001:DB8:1::F:1, 2001:DB8:2::F:1, 2001:DB8:2::1, SL=1>
3 2001:DB8:2::1 4 ms Egress
<HUAWEI> tracert srv6-te policy policy-name policy1 force-match-slice
Trace Route 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
TTL Replier Time Type SRH
0 Ingress <SRH: 2001:DB8:120::1:0:0, 2001:DB8:130::1:0:0, 2001:DB8:130::100, SL=2, Slice-ID:100>
1 2001:DB8:10::2 61 ms Transit <SRH: 2001:DB8:120::1:0:0, 2001:DB8:130::1:0:0, 2001:DB8:130::100, SL=2, Slice-ID:100>
2 2001:DB8:130::100 4 ms Egress <SRH: 2001:DB8:120::1:0:0, 2001:DB8:130::1:0:0, 2001:DB8:130::100, SL=1, Slice-ID:100>
| Item | Description |
|---|---|
| end-op | End op. |
| Path Type | Path type. |
| Segment-List ID | Segment-List ID. |
| TTL | Time to live. |
| Replier | IP address of the transit node that returns the response packet. |
| Time | Round-trip time (RTT), in milliseconds. |
| Type | Node type:
|
| SRH | Segment routing header information. |
| Discriminator | Discriminator. |
| Xcindex | Xc Index. |
| Preference | Preference. |
| Protocol-Origin | Protocol origin. |
| Slice-ID | Network slice ID. |
| SL | Segment left. |
| Originator | Originator. |