H3C S12500X-AF Series, Configuration Manual, Page: 60 / 224

49
Step Command Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 3 aggregate
interface or subinterface
view.
interface route-aggregation
{
interface-number
|
interface-number.subnumber
}
N/A
3.
Set the MAC address for the
aggregate interface.
mac-address mac-address
By default:
•
All aggregate interfaces on a
device use the same MAC
address.
•
Aggregate interfaces on
different devices use
different MAC addresses.
The default MAC address of a
Layer 3 aggregate interface is the
bridge MAC address of the
device.
Specifying ignored VLANs for a Layer 2 aggregate interface
The system ignores the permit state and tagging mode of an ignored VLAN when choosing Selected
ports.
By default, to become Selected, the member ports must have the same VLAN permit state and
tagging mode as the corresponding Layer 2 aggregate interface.
To specify ignored VLANs for a Layer 2 aggregate interface:
Step Command Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 aggregate
interface view.
interface bridge-aggregation
interface-number
N/A
3.
Specify ignored VLANs.
link-aggregation ignore vlan
vlan-id-list
By default, a Layer 2 aggregate
interface does not ignore any
VLANs.
Setting the MTU for a Layer 3 aggregate interface
The MTU of an interface affects IP packets fragmentation and reassembly on the interface.
To set the MTU for a Layer 3 aggregate interface:
Step Command Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 3 aggregate
interface or subinterface
view.
interface route-aggregation
{
interface-number
|
interface-number.subnumber
}
N/A
3.
Set the MTU for the Layer 3
aggregate interface or
subinterface.
mtu size
The default setting is 1500 bytes.