display link-heartbeat interface
Function
The display link-heartbeat interface command displays information about link-heartbeat detection on a specified interface.
Usage Guidelines
Usage Scenario
After link-heartbeat detection is enabled, run the display link-heartbeat command to check packet loss and modification information when link-heartbeat detection is performed on a specified interface and check whether a packet loss or modification alarm is generated.
Precautions
A switch is between two routers, and the routers do not send or detect inter-device heartbeat packets. The routers cannot use the SAID ping or trunk detection functions to detect nodes. As a result, the router resilience function fails.
Example
The actual command output varies according to the device. The command output here is only an example.
<HUAWEI> display link-heartbeat interface Eth-Trunk20 Detecting port : Eth-Trunk20 Detect member port : GigabitEthernet0/1/2 Trunk id : 0 Link-detect Status : Approach(2) Port ready : Ready(None) Port avaliable : Available Port acl download : Not download(0) Lost packet alarm : Normal Error packet alarm : Normal IP address : 192.168.4.1 Source MAC : 00e0-fcad-4d35 Destination MAC : 00e0-fcb0-6ee9 Port mtu : 1500 Send packet length : 64 64 255 255 512 512 1023 1023 1500 1500 1500 1500 Magic word : 79** ae** a3** 4b** ef** 51** f2** f0** 18** 56** de** a4** Feature Flag : 0 255 0 255 0 255 0 90 0 255 0 255 Cyc times : 0 (for current status) Cyc run time(s) : 0 (for current cycle) Arp detect info : 0(no arp flag) 0(arp diagnose flag) Lost packet info : 0x00(lost packet flag) 0x00(lost packet diagnose flag) Error packet info : 0x00(error packet flag) 0x00(error packet diagnose flag) Diagnose packet no : 255 Diagnose times : 0 Diagnose timeout : 0 =====Counter Information===== No arp counter : 0 -----Normal status counter----- Total send : 24 Total receive : 24 Template send : 2 2 2 2 2 2 2 2 2 2 2 2 Template receive: 2 2 2 2 2 2 2 2 2 2 2 2 Template error : 2 2 2 0 0 0 0 0 0 0 2 2 -----Approach status counter----- Total send : 0 Total receive : 0 Template send : 0 0 0 0 0 0 0 0 0 0 0 0 Template receive: 0 0 0 0 0 0 0 0 0 0 0 0 Template error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc0 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc1 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc2 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc3 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc4 error : 0 0 0 0 0 0 0 0 0 0 0 0 -----Diagnose status counter----- Total send : 0 Total receive : 0 Template send : 0 0 0 0 0 0 0 0 0 0 0 0 Template receive: 0 0 0 0 0 0 0 0 0 0 0 0 Template error : 0 0 0 0 0 0 0 0 0 0 0 0 -----All status total counter----- Total send : 0 Total receive : 0 Template send : 0 0 0 0 0 0 0 0 0 0 0 0 Template receive: 0 0 0 0 0 0 0 0 0 0 0 0 Template error : 0 0 0 0 0 0 0 0 0 0 0 0
<HUAWEI> display link-heartbeat interface GigabitEthernet 0/1/3 Detecting port : GigabitEthernet0/1/3.3 Send packet port : GigabitEthernet0/1/3 Is trunk member : False Link-detect Status : Normal(1) Port ready : Ready(None) Port avaliable : Available Port acl download : Download(2) Lost packet alarm : Normal Error packet alarm : Normal IP address : 192.168.4.2 Source MAC : 00e0-fc48-906a Destination MAC : 00e0-fce3-bdd1 Port mtu : 1500 Send packet length : 64 64 255 255 512 512 1023 1023 1500 1500 1200 1200 Magic word : 79** 6a** bc** 6a** 2d** 6a** c9** f0** fe** 02** f8** 80** Feature Flag : 0 255 0 255 0 255 0 90 0 255 0 255 Cyc times : 0 (for current status) Cyc run time(s) : 17 (for current cycle) Cyc template send : 2 2 2 2 2 2 1 0 0 0 2 2 Arp detect info : 0(no arp flag) 0(arp diagnose flag) Lost packet info : 0x00(lost packet flag) 0x00(lost packet diagnose flag) Error packet info : 0x00(error packet flag) 0x00(error packet diagnose flag) Diagnose packet no : 255 Diagnose times : 0 Diagnose timeout : 0 =====Counter Information===== No arp counter : 0 -----Normal status counter----- Total send : 17 Total receive : 17 Template send : 2 2 2 2 2 2 1 0 0 0 2 2 Template receive: 2 2 2 2 2 2 1 0 0 0 2 2 Template error : 0 0 0 0 0 0 0 0 0 0 0 0 -----Approach status counter----- Total send : 0 Total receive : 0 Template send : 0 0 0 0 0 0 0 0 0 0 0 0 Template receive: 0 0 0 0 0 0 0 0 0 0 0 0 Template error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc0 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc1 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc2 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc3 error : 0 0 0 0 0 0 0 0 0 0 0 0 Sub cyc4 error : 0 0 0 0 0 0 0 0 0 0 0 0 -----Diagnose status counter----- Total send : 0 Total receive : 0 Template send : 0 0 0 0 0 0 0 0 0 0 0 0 Template receive: 0 0 0 0 0 0 0 0 0 0 0 0 Template error : 0 0 0 0 0 0 0 0 0 0 0 0 -----All status total counter----- Total send : 5153 Total receive : 5153 Template send : 174 174 174 174 174 174 173 172 172 172 174 174 Template receive: 174 174 174 174 174 174 173 172 172 172 174 174 Template error : 0 0 0 0 0 0 0 0 0 0 0 0
| Item | Description |
|---|---|
| Detecting port | Interface that is being detected. |
| Detect member port | Indicates the member interface that is currently being detected. |
| Trunk id | ID of the trunk interface. |
| Link-detect Status | Current detection state:
|
| Port ready | Whether an interface is ready to send packets:
|
| Port acl download | Flag indicating whether interface CPACL is delivered:
|
| Port mtu | Interface MTU. |
| Port avaliable | Indicates whether the port is valid. |
| Lost packet alarm | Flag indicating whether a packet loss alarm is generated:
|
| Lost packet info | Packet loss information and diagnosis flag corresponding to each packet template. |
| Error packet alarm | Flag indicating whether a packet modification alarm is generated:
|
| Error packet info | Packet modification information and diagnosis flag corresponding to each packet template. |
| IP address | Interface IP address. |
| Source MAC | Source MAC address. |
| Destination MAC | Destination MAC address. |
| Send packet port | Physical port from which packets are sent. |
| Send packet length | Packet length corresponding to each packet template. |
| Magic word | Magic word corresponding to each packet template. |
| Feature Flag | Packet feature flag corresponding to each packet template. |
| Cyc times | Serial number of the packet sending cycle in the current state. |
| Cyc run time(s) | Packet sending time in the current cycle. |
| Cyc template send | Number of packets sent by the 12 packet templates in the current period. |
| Arp detect info | ARP fault information and diagnosis flag. |
| Diagnose timeout | Diagnosis timeout interval. |
| Diagnose packet no | Diagnosis template ID. |
| Diagnose times | Number of times the SAID ping is sent to notify the SAID link heartbeat diagnosis and recovery. |
| No arp counter | Number of cycles in which no ARP information is obtained. |
| Total send | Total number of sent packets. |
| Total receive | Number of received packets. |
| Template send | Number of sent packets corresponding to each packet template. |
| Template receive | Number of received packets corresponding to each packet template. |
| Template error | Number of modified packets corresponding to each packet template. |
| Sub cyc0 error | Number of modified packets in the 12 packet templates in the first small period in the approaching state. |
| Sub cyc1 error | Number of modified packets in the 12 packet templates in the second small period in the approaching state. |
| Sub cyc2 error | Number of modified packets in the 12 packet templates in the third small period in the approaching state. |
| Sub cyc3 error | Number of modified packets in the 12 packet templates in the fourth small period in the approaching state. |
| Sub cyc4 error | Number of modified packets in the 12 packet templates in the fifth small period in the approaching state. |
| Is trunk member | Whether an interface is a trunk member interface. |