mgmd total-number threshold-alarm
Function
The mgmd total-number threshold-alarm command sets the upper and lower alarm thresholds for IGMP/MLD entries.
The undo mgmd total-number threshold-alarm command restores the default alarm thresholds for IGMP/MLD entries.
By default, the upper and lower alarm thresholds are 80% and 75% respectively.
Format
mgmd total-number threshold-alarm upper-limit upper-limit-value lower-limit lower-limit-value
undo mgmd total-number threshold-alarm
Only the S5720-EI, S5720-HI, S5720I-SI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720-LI, S6720S-EI, S6720S-LI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.
Parameters
| Parameter | Description | Value |
|---|---|---|
| upper-limit upper-limit-value | Specifies the upper alarm threshold for IGMP/MLD entries, in percentage. | The value is an integer ranging from 1 to 100. |
| lower-limit lower-limit-value | Specifies the lower alarm threshold for IGMP/MLD entries, in percentage. | The value is an integer ranging from 1 to 100. lower-limit-value must be smaller than upper-limit-value. |
Usage Guidelines
Usage Scenario
A device supports a limited number of IGMP/MLD entries. After the number of IGMP/MLD entries reaches the maximum value, no more IGMP/MLD entries can be created. As a result, some multicast traffic cannot be forwarded. To facilitate network operation and maintenance, configure the upper and lower alarm thresholds for IGMP/MLD entries. IGMP/MLD entry alarms and clear alarms quickly notify you of IGMP/MLD entry usage. The mgmd total-number threshold-alarm command allows you to flexibly adjust the alarm thresholds for IGMP/MLD entries based on service requirements. Note that:
- If the proportion of existing IGMP/MLD entries to the maximum number reaches upper-limit-value, an IGMP/MLD entry alarm is reported for all VPN instances. This alarm is informational only and does not affect creation of new IGMP/MLD entries.
- If the proportion of existing IGMP/MLD entries to the maximum number falls below lower-limit-value, an IGMP/MLD entry clear alarm is reported for all VPN instances.
Prerequisites
This command only configures the alarm thresholds for IGMP/MLD entries. To enable the configured alarm thresholds to take effect, run the snmp-agent trap enable feature-name igmp trap-name { hwmgmdtotallimitthresholdexceed | hwmgmdtotallimitthresholdexceedclear } command twice to enable the device to report IGMP/MLD entry alarms and clear alarms.
Precautions
If the mgmd total-number threshold-alarm command is executed multiple times, only the latest configuration takes effect.