Juniper JUNOS OS 10.3 - SOFTWARE Manual page 3933

Table 508: Logical Operators for the monitor traffic Command
Logical Operator (Highest to
Lowest Precedence)
!
&&
||
( )
Copyright © 2010, Juniper Networks, Inc.
Chapter 135: Operational Mode Commands for General Network Management and Monitoring
To combine expressions, use the logical operators listed in Table 508 on page 3837.
Description
Logical NOT. If the first condition does not match, the next condition is evaluated.
Logical AND. If the first condition matches, the next condition is evaluated. If the first condition
does not match, the next condition is skipped.
Logical OR. If the first condition matches, the next condition is skipped. If the first condition
does not match, the next condition is evaluated.
Group operators to override default precedence order. Parentheses are special characters,
each of which must be preceded by a backslash (
You can use relational operators to compare arithmetic expressions composed of integer
constants, binary operators, a length operator, and special packet data accessors. The
arithmetic expression matching condition uses the following syntax:
monitor traffic matching "ether[0] & 1 != 0""arithmetic_expression relational_operator
arithmetic_expression"
The packet data accessor uses the following syntax:
protocol [byte-offset <size>]
The optional size field represents the number of bytes examined in the packet header.
The available values are
1, 2,
multicast traffic:
user@host> monitor traffic matching "ether[0] & 1 != 0"
To specify match conditions that have a numeric value, use the arithmetic and relational
operators listed in Table 509 on page 3838.
).
\
or bytes.The following sample command captures all
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