Mac-Address Max-Mac-Count - H3C S7500E Series Command Manual

Command Manual – MAC Address Table Management
H3C S7500E Series Ethernet Switches
You may need to disable MAC address learning sometimes to prevent the MAC
address table from being saturated, for example, when your device is being
attacked by a great deal of packets with different source MAC addresses. This
somewhat affects update of the MAC address table.
As disabling MAC address learning may result in broadcast storms, you need to
enable broadcast storm suppression after you disable MAC address learning on a
port.
Related commands: display mac-address mac-learning.
Note:
When global MAC address learning is disabled, the learned MAC addresses remain
valid until they age out.
Examples
# Disable global MAC address learning.
<Sysname> system-view
[Sysname] mac-address mac-learning disable
# Disable MAC address learning on port Ethernet 2/0/1.
<Sysname> system-view
[Sysname] interface ethernet 2/0/1
[Sysname-Ethernet2/0/1] mac-address mac-learning disable

1.1.7 mac-address max-mac-count

Syntax
mac-address max-mac-count count
undo mac-address max-mac-count
View
Ethernet port view, port group view
Parameters
count: Maximum number of MAC addresses that can be learned on a port, in the range
0 to 4096. When the argument takes 0, the port is not allowed to learn MAC addresses.
Description
Use the mac-address max-mac-count count command to configure the maximum
number of MAC addresses that can be learned on an Ethernet port.
Chapter 1 MAC Address Table Management
1-7
Configuration Commands