Panasonic NN46240-502 - Manual (Page 21)

1 LAN access overview
Nortel Secure Router 8000 Series
Configuration - LAN Access and MAN Access
1.1 Introduction
This chapter describes the concepts of physical and logical interfaces and the link layer
protocols supported by the Nortel Secure Router 8000 Series. This chapter also describes how
to configure LAN interface parameters and maintain LAN interfaces.
For the information about wide area network (WAN) configuration, network layer protocols,
and special functions, see Nortel Secure Router 8000 Series Configuration - WAN Access
(NN46240-503).
The section describes the concepts that you need to know before you configure LAN
interfaces and link layer protocols:
• LAN interfaces
• Link layer protocols
1.1.1 LAN interfaces
Interface types
Routers use two types of interfaces to exchange data and interact with other devices on the
network: physical interfaces and logical interfaces.
• Physical interfaces have corresponding physical components. They are further divided
into two types.
- Local area network (LAN) interfaces: LAN interfaces are mainly Ethernet interfaces
through which routers exchange data with devices in a LAN.
- Wide area network (WAN) interfaces: WAN interfaces include ATM, POS, and
CE1/CT1 interfaces through which routers exchange data with devices of external
networks.
• Logical interfaces, such as subinterfaces, do not physically exist. They are created
through configuration.
Command views and prompts
The following tables show the command line views and prompts of physical interfaces and
logical interfaces.
Table 1-1 Command line views and prompts of physical interfaces
Interface Command
View
Command Prompt
Ethernet
interface
Ethernet
interface view
Run the interface
ethernet 1/0/0
command in the
system view.
[Nortel-Ethernet 1/0/0]
Gigabit Ethernet
interface
Gigabit Ethernet
interface view
Run the interface
gigabitethernet 1/0/0
command in the
system view.
[Nortel-GigabitEthernet1/0
/0]
1-2 Nortel Networks Inc. Issue 5.3 (30 March 2009)