Learn about the three essential steps for implementing filter-based forwarding in Juniper Networks, including creating routing instances, firewall filters, and RIB groups.
Table of Contents
Question
Which three actions are required for filter-based forwarding? (Choose three.)
A. Create routing policies for source addresses.
B. Create routing instances for individual destinations.
C. Create a firewall filter to match desired traffic.
D. Create a forwarding option for load balancing.
E. Create a RIB group for next-hop entries.
Answer
B. Create routing instances for individual destinations.
C. Create a firewall filter to match desired traffic.
E. Create a RIB group for next-hop entries.
Explanation
To set up filter-based forwarding in Juniper Networks, three key actions are required:
Create routing instances for individual destinations (Option B):
Routing instances allow you to create separate routing tables for different destinations. By defining routing instances, you can isolate traffic and apply specific routing policies to each instance. This enables you to control how traffic is forwarded based on the destination.
Create a firewall filter to match desired traffic (Option C):
Firewall filters are used to identify and classify traffic based on various criteria, such as source and destination addresses, protocols, and ports. By creating a firewall filter, you can specify the exact traffic you want to match for filter-based forwarding. This allows you to selectively apply forwarding actions to specific traffic flows.
Create a RIB group for next-hop entries (Option E):
RIB (Routing Information Base) groups are used to manage multiple routing tables and control how routes are imported and exported between them. By creating a RIB group for next-hop entries, you can define the set of routing tables that will be used for forwarding traffic. This enables you to control which next-hops are used for each traffic flow based on the matching firewall filter.
Options A and D are incorrect because creating routing policies for source addresses and creating forwarding options for load balancing are not directly related to the core requirements of filter-based forwarding.
In summary, filter-based forwarding in Juniper Networks requires the creation of routing instances for individual destinations, firewall filters to match desired traffic, and RIB groups for managing next-hop entries. By configuring these components correctly, you can achieve granular control over traffic forwarding based on specific criteria.
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