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# ip prefix-tree

#### Syntax

ip prefix-tree treeName { description desc | { permit | deny } ipPrefix }

no ip prefix-tree treeName [ description | { permit | deny } ipPrefix ]

#### Release Information

Command introduced before JUNOSe Release 7.1.0.

#### Description

Creates a prefix tree for best-match route filtering; specifies a tree entry—a deny or permit clause for a network address. The no version removes the specified prefix tree or the specified tree entry.

#### Options

- treeName—Name of the prefix list; a string of up to 32 characters
- desc—Description of the prefix list
- deny—If the prefix of the route being filtered matches the specified prefix and deny is specified, the route is not redistributed
- permit—If the prefix of the route being filtered matches the specified prefix and permit is specified, the route is redistributed as controlled by the set actions
- ipPrefix—Network route to be filtered, in the format network / length, where
  - network—Base address of the network route to be filtered; for example, 192.168.32.0 or 10.10.0.0
  - length—Length of the network prefix; number of bits masking base address to produce address to be matched

#### Mode

Router Configuration

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