R0106-HP MSR Router Series Interface Configuration Guide(V7)

11
Ste
p
Command Remarks
2. Enter Ethernet interface view.
interface interface-type
interface-number
N/A
3. Set the MDIX mode of the
Ethernet interface.
mdix-mode { automdix | mdi |
mdix }
By default, a copper Ethernet
interface operates in auto mode to
negotiate pin roles with its peer.
Configuring a Layer 3 Ethernet interface or
subinterface
Setting the MTU for an Ethernet interface or subinterface
The value of maximum transmission unit (MTU) affects the fragmentation and reassembly of IP packets.
Generally, you do not need to modify the MTU of an interface.
To set the MTU for an Ethernet interface or subinterface:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter Ethernet interface or
subinterface view.
interface interface-type { interface-number |
interface-number.subnumber }
N/A
3. Set the MTU.
mtu size
The default setting varies by
interface types. For more
information, see Interface
Command References.
Configuring the MAC address of an Ethernet interface
In a network, when the Layer 3 Ethernet interfaces 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.
To configure the MAC address of an Ethernet interface:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter Ethernet interface view.
interface interface-type
interface-number
N/A
3. Configure the MAC address of
the Ethernet interface.
mac-address mac-address
The default MAC address of a Layer 3
Ethernet interface varies by devices.