H3C S6850 Series, Руководство по настройке

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Static entries —A static entry is manually added to forward frames with a specific destination
MAC address out of the associated interface, and it never ages out. A static entry has higher
priority than a dynamically learned one.
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Dynamic entries —A dynamic entry can be manually configured or dynamically learned to
forward frames with a specific destination MAC address out of the associated interface. A
dynamic entry might age out. A manually configured dynamic entry has the same priority as a
dynamically learned one.
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Blackhole entries —A blackhole entry is manually configured and never ages out. A blackhole
entry is configured for filtering out frames with a specific source or destination MAC address.
For example, to block all frames destined for or sourced from a user, you can configure the
MAC address of the user as a blackhole MAC address entry. A blackhole entry has higher
priority than a dynamically learned one.
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Multiport unicast entries —A multiport unicast entry is manually added to send frames with a
specific unicast destination MAC address out of multiple ports, and it never ages out. A multiport
unicast entry has higher priority than a dynamically learned one.
A static or blackhole MAC address entry can overwrite a dynamic MAC address entry. A dynamic
MAC address entry cannot overwrite a static, blackhole, or multiport unicast MAC address entry. A
static entry, a blackhole entry, and a multiport unicast entry cannot overwrite one another.
A multicast unicast MAC address entry does not affect learning the corresponding dynamic MAC
address entry. For the same MAC address, a multiport unicast MAC address entry and a dynamic
MAC address entry can coexist, and the multiport unicast MAC address takes priority.
This document does not cover the configuration of static multicast MAC address entries and MAC
address entries in VPLS. For more information about configuring static multicast MAC address
entries, see IGMP snooping in
IP Multicast Configuration Guide . For more information about MAC
address table configuration in VPLS, see VPLS in MPLS Configuration Guide .
MAC address table tasks at a glance
All MAC address table configuration tasks are optional.
To configure the MAC address table, perform the following tasks:
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Configuring MAC address entries
{
Adding or modifying a static or dynamic MAC address entry
{
Adding or modifying a blackhole MAC address entry
{
Adding or modifying a multiport unicast MAC address entry
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Setting the aging timer for dynamic MAC address entries
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Configuring MAC address learning
{
Disabling MAC address learning
{
Setting the MAC learning limit
{
Configuring the unknown frame forwarding rule after the MAC learning limit is reached
{
Assigning MAC learning priority to interfaces
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Enabling MAC address synchronization
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Configuring MAC address move notifications and suppression
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Enabling ARP fast update for MAC address moves
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Disabling static source check
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Enabling SNMP notifications for the MAC address table