mld global limit

Function

The mld global limit command sets the maximum number of MLD entries that can be created on the entire switch.

The undo mld global limit command deletes the configured maximum number of MLD entries.

The following lists the maximum number of MLD entries allowed on each model by default:

S5720-LI, S5720S-LI: 496
S5730-SI, S5730S-EI, S6720-LI, S6720S-LI, S6720-SI, S6720S-SI: 512
S5731-S, S5731S-S, S5720I-SI, S5720S-SI, S5720-SI: 1024
S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735S-S, S5735-S-I: 1500
S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, S6730S-S: 4096

Format

mld global limit number

undo mld global limit

Parameters

Parameter	Description	Value
number	Specifies the maximum number of MLD entries that can be created on the entire switch.	The value is an integer that ranges from 1 to The maximum number of MLD entries allowed by default. NOTE: The value range of S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-HI, S6730S-H, and S6730-H are expanded after the high specification mode is configured for multicast forwarding using the set multicast forwarding-table super-mode command. The actual value range depends on the specification of the device.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When the number of MLD entries reaches the limit, the system does not create any more. To enable the switch to allow new join requests, you can either delete useless entries or modify the limit. Alternatively, you can enable static addition on a multicast group or source group.

The number of MLD entries can be counted in the following methods:

Each (*, G) entry is counted as one entry.
Each (S, G) entry is counted as one entry.
Each (*, G) entry for SSM mapping is counted as one entry.

Prerequisites

Layer 3 IPv6 multicast has been enabled using the multicast ipv6 routing-enable command in the system view.

Precautions

You can also run the limit (MLD view) command in the MLD view to set the maximum number of global MLD group entries. If both the mld global limit and limit (MLD view) commands are run, the smaller value takes effect.

Example

# Set the maximum number of MLD entries that can be created on the switch to 1000.

<HUAWEI> system-view
[HUAWEI] multicast ipv6 routing-enable
[HUAWEI] mld global limit 1000