Administrator Guide

Using the CLI 232
Loopback Interfaces
Loopback interfaces are represented in the CLI by the keyword loopback
followed by the variable loopback-id, which can assume values from 0–7.
Port Channel Interfaces
Port-channel (or LAG) interfaces are represented in the CLI by the keyword
port-channel followed by the variable port-channel-number.
When listed in command line output, port channel interfaces are preceded by
the characters Po.
Tunnel Interfaces
Tunnel interfaces are represented in the CLI by the keyword tunnel followed
by the variable tunnel-id, which can assume values from 0–7.
VLAN Routing Interfaces
VLAN interfaces are represented in the CLI by the keywords interface vlan
followed by the variable vlan-id, which can can assume values from 1-4093. A
VLAN routing interface will typically have an IP address assigned, either via
DHCP or a static assignment or, in the case of IPv6, auto assignment of a link
local address.
Operating on Multiple Interfaces (Ranges)
The CLI allows the user to operate on multiple interfaces in one operation.
The guidelines are as follows for range operation:
• The range key word is used to identify that an interface range specifier
follows.
– An interface range specifier consists of an interface identifier followed
by an optional range parameter. The interface type may be an
Ethernet interface or a logical interface (port channel or VLAN) as
described in the Interface Naming Conventions section.
• The range parameter may be written in the following manner:
(#-#) — a range from a particular interface to another higher-numbered
interface (inclusive). For example, 1/0/1-10 indicates that the operation
applies to the Ethernet interfaces 1 to 10 in slot 0 on unit 1. The number