show route aspath-regex

Syntax

Release Information

Command introduced before JUNOS Release 7.4.

Description

Display the entries in the routing table that match the specified autonomous system (AS) path regular expression.

Options

regular-expression — Regular expression that matches an entire AS path.

logical-system (all | logical-system-name) — (Optional) Perform this operation on all logical systems or on a particular logical system.

Additional Information

You can specify a regular expression as:

• An individual AS number
• A period wildcard used in place of an AS number
• An AS path regular expression that is enclosed in parentheses

You also can include the operators described in the table of AS path regular expression operators in the JUNOS Policy Framework Configuration Guide. The following list summarizes these operators:

• {m,n}—At least m and at most n repetitions of the AS path term.
• {m}—Exactly m repetitions of the AS path term.
• {m,}—m or more repetitions of the AS path term.
• *—Zero or more repetitions of an AS path term.
• +—One or more repetitions of an AS path term.
• ?—Zero or one repetition of an AS path term.
• aspath_term | aspath_term—Match one of the two AS path terms.

  When you specify more than one AS number or path term, or when you include an operator in the regular expression, enclose the entire regular expression in quotation marks. For example, to match any path that contains AS number 234, specify the following command:

  show route aspath-regex ".* 234 .*"

Required Privilege Level

view

List of Sample Output

Output Fields

For information about output fields, see the show route command (Table 88).

inet.0: 46411 destinations, 46411 routes (46409 active, 0 holddown, 2 hidden)
+ = Active Route, - = Last Active, * = Both
 
111.222.1.0/25     *[BGP/170] 00:08:48, localpref 100, from 111.222.2.24
                   AS Path: [65477] ({65488 65535}) IGP
                     to 111.222.18.225 via fpa0.0(111.222.18.233)
111.222.1.128/25   *[IS-IS/15] 09:15:37, metric 37, tag 1
                     to 111.222.18.225 via fpa0.0(111.222.18.233)
                    [BGP/170] 00:08:48, localpref 100, from 111.222.2.24
                   AS Path: [65477] ({65488 65535}) IGP
                     to 111.222.18.225 via fpa0.0(111.222.18.233)
...

 
inet.0: 46351 destinations, 46351 routes (46349 active, 0 holddown, 2 hidden)
+ = Active Route, - = Last Active, * = Both
 
9.20.0.0/17        *[BGP/170] 01:35:00, localpref 100, from 131.103.20.49
                   AS Path: [666] 234 3561 2685 2686 Incomplete
                     to 192.156.169.1 via 192.156.169.14(so-0/0/0)
12.10.231.0/24     *[BGP/170] 01:35:00, localpref 100, from 131.103.20.49
                   AS Path: [666] 234 3561 5696 7369 IGP
                     to 192.156.169.1 via 192.156.169.14(so-0/0/0)
24.64.32.0/19      *[BGP/170] 01:34:59, localpref 100, from 131.103.20.49
                   AS Path: [666] 234 3561 6327 IGP
                     to 192.156.169.1 via 192.156.169.14(so-0/0/0)
...

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