If only an SRv6 port license rather than a device-based license is purchased, you can configure SRv6 services only after activating the SRv6 port license.
Flex-Algo is an algorithm that allows an IGP to calculate eligible paths automatically based on the link cost, delay, or TE constraint to flexibly meet TE requirements.
IS-IS SRv6 topology-independent loop-free alternate (TI-LFA) fast reroute (FRR) uses an explicit path to represent a backup path, which poses no topology constraints and provides more reliable FRR.
By using segment lists, an SRv6 TE Policy instructs network devices to forward traffic along a specified path. This mechanism can be used to instruct SFC traffic to pass through specific service functions (SFs).