Understanding Is-Is Flood Group - Juniper ACX1000 Configuration Manual

Junos os; acx series universal access router

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Understanding IS-IS Flood Group

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Understanding IS-IS Configuration

Example: Configuring IS-IS

IS-IS supports flood-group. This feature limits link-state packet data unit (PDU) flooding

over IS-IS interfaces.

A link-state packet (LSP) that is not self-originated will be flooded only through the

interface belonging to the flood group that has the configured area ID in the LSP. This

helps minimize the routes and topology information, thus ensuring optimal convergence.

You can segregate both Level 1 and Level 2 IS-IS routers into flood groups by using area

IDs as tags to identify a flood group. Configure interfaces with specific area IDs to modify

the flooding behavior as per your requirements. To enable IS-IS flood group, include the

flood-group flood-group-area-ID

IS-IS Overview on page 536

Example: Configuring IS-IS Flood Group

Chapter 18: Configuring Routing Protocols

statement at the

[edit protocols isis interface]

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