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Throughout the book, you will see the following icons used for networks and network connections.
The conventions used to present command syntax in this book are the same conventions used in the
IOS Command Ref-
erence
. The
Command Reference
describes these conventions as follows:
·
Vertical bars (|) separate alternative, mutually exclusive elements.
·
Square brackets ([ ]) indicate optional elements.
·
Braces ({ }) indicate a required choice.
·
Braces within brackets ([{ }]) indicate a required choice within an optional element.
·
Boldface
indicates commands and keywords that are entered literally as shown. In actual configuration examples
and output (not general command syntax), boldface indicates commands that are manually input by the user (such
as a
show
command).
·
Italics
indicates arguments for which you supply actual values.
Line: Ethernet
Line: Serial
Line: Switched Serial
Frame Relay Virtual Circuit
Token Ring
FDDI
Network Cloud
87200333.book Page xxxiii Wednesday, August 22, 2001 2:18 PM