XS26GS Managed Optical Ethernet Switch User Manual
118
Setting an appropriate MAC address aging timer is important for the switch to run
efficiently.
z
If the aging timer is set too short, the MAC address entries that are still valid
may be removed due to aging. Upon receiving a packet destined for a MAC
address that is already removed, the switch broadcasts the packet to all ports
within the VLAN to which the packet belongs. This decreases the operating
performance.
z
If the aging timer is set too long, MAC address entries may still exist even if
they turn into invalid. This causes the switch to be unable to update its MAC
address table in time. In this case, the MAC address table cannot reflect the
change of network devices in time.
Examples
XS#
mac-address timer aging
500
Aging time of dynamic MAC address is 500 seconds.
3.16
Multicast Commands
The “Any view” in the below table refers to anyone of the following: System view,
Ethernet port view, Port-based VLAN view, VLAN view, or dot1x view.
Command list
:
View
Command
Any view
show mac-address multicast [ count | static { all |
count |
mac-address
vlan
vlan-id
} ]
System view
mac-address multicast
mac-address
interface
ethernet
interface
[ to ethernet
interface
] vlan
vlan-id
no mac-address multicast
{
all
|
interface
ethernet
interface
[
to
ethernet
interface
]
vlan
vlan-id
|
mac-address
vlan
vlan-id
}
Ethernet port view
mac-address multicast
mac-address
vlan
vlan-id
no mac-address multicast
mac-address
vlan
vlan-id
show mac-address multicast
Syntax
show mac-address multicast [ count | static { all | count |
mac-address
vlan
vlan-id
} ]
View
Any view
Parameters
mac-address
: displays the static multicast MAC entry information for the specified
MAC address.
vlan
vlan-id
: displays the static multicast MAC entry information in the specified
VLAN.
count
: displays the number of static multicast MAC entries.