Routing And Forwarding Tables; Figure 75: Control Packet Handling For Routing And Forwarding Table - Juniper TX MATRIX Hardware Manual

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OSPF—Open Shortest Path First, version 3 (OSPFv3).
RIP—Routing Information Protocol, version 2.

Routing and Forwarding Tables

The primary function of the Junos OS routing protocol process is maintaining routing
tables and using the information in them to determine active routes to network
destinations. The process copies information about the active routes into the TX Matrix
Routing Engine's forwarding table, which is synchronized with each T640 router by the
kernel synchronization process that runs on each T640 router's Routing Engine (see
Figure 75 on page 151). The Junos OS kernel running on each T640 router's Routing Engine
copies its forwarding table to all Packet Forwarding Engines in the router. The Junos OS
kernel running on each T640 Routing Engine copies its forwarding table to all Packet
Forwarding Engines in the router.

Figure 75: Control Packet Handling for Routing and Forwarding Table

Updates
By default, the routing protocol process maintains the following routing tables and uses
the information in each table to determine active routes to network destinations:
Unicast routing table—Stores routing information for all unicast protocols running on
the router, including BGP, IS-IS, OSPF, and RIP. You can also configure additional
routes, such as static routes, for inclusion in the routing table. The unicast routing
protocols use the routes in this table when advertising routing information to their
neighbors.
Chapter 17: Configuring Junos OS
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