Juniper JUNOSE 11.2.X BGP AND MPLS, Configuration Manual

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Table 45: show ip bgp quote-regexp Output Fields (continued)
Field Description Field Name
Prefix for the routing table entry Prefix
IP address of the next router that is used when a packet is forwarded
to the destination network Next hop IP address
Multiexit discriminator for the route MED
Calculated preference for the route CalPrf
Weight of the route Weight
Autonomous system path AS path
Related Topics Monitoring BGP Routes with Matching AS-Paths and Regular Expressions for Multiple
Regular Expressions on page 198
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show bgp ipv6 quote-regexp
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show ip bgp quote-regexp
Monitoring BGP Routes with Matching AS-Paths and Regular Expressions for Multiple
Regular Expressions
Purpose Display information about BGP routes whose AS-path matches the specified regular
expression elements. Accepts one or more regular expression elements. Report whether
the indirect next hop of a route is unreachable; if not, display the IGP cost to the indirect
next hop.
Regular expressions match numbers for which the specified path is a substring—for
example, if you specify 20, 200 matches because 20 is a substring of 200. You can
disallow substring matching by using the underscore (_) metacharacter to constrain
matching to the specified pattern, for example, _20_.
The show ip bgp regexp and show bgp ipv6 regexp commands display similar
information.
Action To display information about routes whose AS-path matches the specified regular
expression element:
host1# show ip bgp regexp ^200
Local router ID 192.168.1.232, local AS 100
6 paths, 3 distinct prefixes (324 bytes used)
3 paths selected for route table installation
7 path attribute entries (872 bytes used)
Prefix Next-hop MED CalPrf Weight AS-path
10.99.1.2/32 10.1.1.2 100 100 200
10.99.1.3/32 10.1.1.2 100 100 200 10
10.99.1.4/32 10.1.1.2 100 100 200 10 20
Copyright © 2010, Juniper Networks, Inc. 198
JunosE 11.2.x BGP and MPLS Configuration Guide