Explains how source-address entropy improves load balancing for SRv6 uSID traffic and provides the operational guidance and configuration needed to deploy it effectively.
This chapter explains how SRv6 locators enable traffic steering by defining IPv6 address spaces used to allocate and identify SRv6 SIDs within the network. It describes locator types such as base format, uSID, and Anycast locators, their usage guidelines and limitations, and the configuration steps required to enable locator-based forwarding. The chapter also covers how SRv6 uSID load balancing can be improved by encoding Flow Label entropy into the IPv6 source address during encapsulation, helping ensure consistent ECMP distribution even when intermediate nodes do not use the IPv6 Flow Label for hashing.
SRv6 Flow Label entropy via source address
Explains how Flow Label entropy encoded in the IPv6 source address improves SRv6 load balancing and describes its operation, deployment guidelines, limitations, and configuration.