Enhanced DC Routing Capabilities
Prisma SD-WAN now supports the DC routing capabilites: Optimized DC Prefix
Advertising, Enhanced Prefix Management, Automated Asymmetry Correction, and Intelligent
Traffic Rerouting.
When you have multiple Branch-to-Data Center (DC) paths, Prisma SD-WAN uses only active
paths for traffic. A Branch ION maintains active tunnels to one DC ION and standby
tunnels to the second DC ION within the DC ION HA pair. This ensures that backup paths
are ready to activate if the active DC ION experiences a link or BGP peer failure,
providing uninterrupted service.
To ensure consistent connectivity, you can enable Host Reachability Tracking to monitor
LAN connections. As long as the DC ION can reach the designated IP address, the tunnels
on the ION remain active and traffic persists on the active links. If the tracker
fails—indicating a loss of IP reachability—the system automatically switches to backup
paths, ensuring a prompt and resilient response.
The enhanced
DC Routingcapabilities help you adapt to your
network's evolving needs, ensuring it remains efficient and effective.
Key DC Routing Features
- Advertise DC Prefixes: DC Site or ION Devices can now advertise learned
prefixes to the overlay Fabric. This allows your branch locations to prioritize
traffic through their preferred data center, giving you faster and more reliable
connections tailored to your needs.
- Manage Prefixes: DC ION Devices can now advertise summary prefixes to the
Core network, which helps you address scale limitations. This solution simplifies
and scales your network's ability to handle large numbers of prefixes
effortlessly.
- Correct Asymmetry: Network asymmetry can pose a risk in scenarios where
branch traffic routes through Prisma Access or other cloud security platforms. This
new functionality automatically detects and corrects asymmetry, ensuring smoother,
more balanced traffic flows and compliance with security protocols.
- Reroute Traffic: DC ION Devices can detect core network connectivity
failures. When an issue arises, traffic is seamlessly redirected to alternative
overlay paths within the same data center, maintaining uninterrupted service and
enhancing network resilience.
