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# summary-address

#### Syntax

IS-IS:

summary-address address mask [ level-1 | level-1-2 | level-2 ] [ metric ]
[ tag tagValue ]

no summary-address address mask [ level-1 | level-1-2 | level-2 ]

OSPF:

[ no ] summary-address address mask

#### Release Information

Command introduced before JUNOSe Release 7.1.0.

#### Description

Creates aggregate addresses for IS-IS or aggregates external routes at the border of the OSPF domain. The no version restores the default.

#### Options

- address—Summary IP address designated for a range of addresses
- mask—IP subnet mask used for the summary route
- level-1—Summarizes routes redistributed into level 1; when distributing routes domain wide, summarizes routes leaked from level 2 into level 1
- level-1-2—Summarizes routes redistributed into level 1 and level 2 IS-IS, and routes leaked between levels
- level-2—Summarizes routes learned by level 1 routing into the level 2 backbone with the configured address/mask value; also summarizes routes redistributed into level 2 IS-IS
- metric—Number in the range 1–16777215; the default metric value. The summary uses this value when advertising the summary address. When no metric is supplied, uses the value of the lowest-cost route that this is summarizing (default).
- tagValue—Number in the range 1–4294967295 that identifies the route tag assigned to the IS-IS summary address

#### Mode

Router Configuration

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