.. _example_service_dhcp-relay_relay-advanced:

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Relay-Advanced
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This suite tests advanced DHCP relay deployment scenarios.
These include configurations with multiple servers for redundancy
and relays serving multiple client networks simultaneously.
These scenarios are common in enterprise and service provider networks
where high availability and network segmentation are required.

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Test Relay With Multiple Upstream Servers
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Description
===========

This test configures a relay with multiple DHCP servers for redundancy.
The relay forwards DHCP requests to all configured server addresses.
If one server is unavailable or slow, the client can receive a response
from another server. This is useful when DHCP server failover is not
available or when load balancing across multiple servers is desired.
The client should obtain an IP from one of the configured servers.

Scenario
========

.. include:: relay-advanced/testrelaywithmultipleupstreamservers

.. raw:: html

  <hr>

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Test Relay With Multiple Downstream Interfaces
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Description
===========

This test configures a single relay instance to serve multiple
downstream networks. This is common in distribution layer switches
where one device provides DHCP relay for multiple VLANs.
Each downstream interface forwards requests to the same upstream
server, but the server assigns IPs from the appropriate subnet
based on the giaddr (relay IP) in each network.

Scenario
========

.. include:: relay-advanced/testrelaywithmultipledownstreaminterfaces

.. raw:: html

  <hr>