Ethernet interface configuration, Ethernet interface overview, General ethernet interface configuration – H3C Technologies H3C SecPath F1000-E User Manual
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Ethernet Interface Configuration
This chapter includes these sections:
•
•
General Ethernet Interface Configuration
•
Configuring a Layer 2 Ethernet Interface/Subinterface
•
Configuring a Layer 3 Ethernet Interface/Subinterface
•
Displaying and Maintaining an Ethernet Interface/Subinterface
Ethernet Interface Overview
The following types of Ethernet interfaces may be available on your device:
•
Layer 2 Ethernet interfaces. They are physical interfaces operating on the data link layer for Layer
2 packet forwarding, that is, they can only forward packets carrying source and destination IP
addresses that belong to the same network segment.
•
Layer 3 Ethernet interfaces. They are physical interfaces operating on the network layer for Layer 3
packet forwarding, that is, they can forward packets carrying source and destination IP addresses
that belong to different network segments. You can assign an IP address to a Layer 3 Ethernet
interface.
•
Layer 2/Layer 3 Ethernet interfaces. They are physical interfaces that can operate on both the data
link layer and the network layer. When operating on the data link layer, a Layer 2/Layer 3 Ethernet
interface acts as a Layer 2 Ethernet interface; when operating on the network layer, a Layer 2/Layer
3 Ethernet interface acts as a Layer 3 Ethernet interface.
•
Layer 2 Ethernet subinterfaces. They are logical interfaces operating on the data link layer. They are
mainly used for inter-VLAN packet forwarding on firewall cards. The link type of a Layer 2 Ethernet
subinterface is access, which cannot be changed. Besides the Layer 2 subinterface configurations
described in this chapter, you can also assign a Layer 2 subinterface to a VLAN. For the related
configuration, see VLAN Configuration in the Firewall Web Configuration Manual.
•
Layer 3 Ethernet subinterfaces. They are logical interfaces operating on the network layer. You can
assign an IP address to a Layer 3 Ethernet subinterface. By creating subinterfaces on a Layer 3
Ethernet interface, you can enable the interface to carry packets for multiple VLANs.
General Ethernet Interface Configuration
This section describes the attributes and configurations common to Layer 2 and Layer 3 Ethernet
interfaces/subinterfaces. For specific attributes, see
Configuring a Layer 2 Ethernet
and
Configuring a Layer 3 Ethernet Interface/Subinterface
.