Ethernet Summary - ZyXEL Communications NXC5200 User Manual

Chapter 11 Interfaces
Types of Interfaces
You can create several types of interfaces in the NXC.
• Ethernet interfaces are the foundation for defining other interfaces and
network policies.
• VLAN interfaces receive and send tagged frames. The NXC automatically adds
or removes the tags as needed.

11.2 Ethernet Summary

This screen lists every Ethernet interface. To access this screen, click
Configuration > Network > Interface.
Unlike other types of interfaces, you cannot create new Ethernet interfaces nor
can you delete any of them. If an Ethernet interface does not have any physical
ports assigned to it, it is effectively removed from the NXC even though you can
still configure it.
Ethernet interfaces are similar to other types of interfaces in many ways. They
have an IP address, subnet mask, and gateway used to make routing decisions.
They restrict the amount of bandwidth and packet size. They can provide DHCP
services, and they can verify the gateway is available.
Use Ethernet interfaces to control which physical ports exchange routing
information with other routers and how much information is exchanged through
each one. The more routing information is exchanged, the more efficient the
routers should be. However, the routers also generate more network traffic, and
some routing protocols require a significant amount of configuration and
management.
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NXC5200 User's Guide