Configuring The Mac Address Of An Ethernet Interface Or Subinterface; Displaying And Maintaining An Ethernet Interface Or Subinterface - HP MSR Router Series Configuration Manual

Step
1. Enter system view.
2. Enter Ethernet interface
or subinterface view.
3. Set the MTU.
Configuring the MAC address of an Ethernet interface or
subinterface
In a network, when the Layer 3 Ethernet interfaces or subinterfaces of different devices have the same
MAC address, the devices might fail to communicate correctly. To eliminate the MAC address conflicts,
use the mac-address command to modify the MAC addresses of Layer 3 Ethernet interfaces or
subinterfaces.
Additionally, when a Layer 3 Ethernet subinterface is created, it uses the MAC address of its main
interface by default. As a result, all Layer 3 Ethernet subinterfaces of a Layer 3 Ethernet interface share
the same MAC address. To configure a different MAC address for a specific Layer 3 Ethernet
subinterface, use the mac-address command.
To configure the MAC address of an Ethernet interface or subinterface:
Step
1. Enter system view.
2. Enter Ethernet interface view.
3. Configure the MAC address
of the Ethernet interface or
subinterface.
Displaying and maintaining an Ethernet interface or
subinterface
Execute display commands in any view and reset commands in user view.
Command
system-view
interface interface-type { interface-number |
interface-number.subnumber }
mtu size
Command
system-view
interface interface-type
{ interface-number |
interface-number.subnumber }
mac-address mac-address
12
Remarks
N/A
N/A
The default setting varies by
interface types. For more
information, see Interface
Command References.
Remarks
N/A
N/A
The default MAC address of a Layer 3
Ethernet interface varies by devices.
The default MAC address of a Layer 3
Ethernet subinterface is the same as the
MAC address of its host interface.
HP recommends not configuring a
MAC address in the VRRP-reserved
MAC address range for a Layer 3
Ethernet subinterface.