Error and resource exhaustion handling

When the prefix corresponding to a node SID is being resolved, the following procedures are followed.

Procedure 1: Providing support of multiple topologies for the same destination prefix
Procedure 2: Resolving received SID indexes or labels to different routes of the same prefix within the same IGP instance
Procedure 3: Checking for SID error before programming ILM and NHLFE
Procedure 4: Programming ILM/NHLFE for duplicate prefix-SID indexes/labels for different prefixes
Procedure 5: Programming ILM/NHLFE for the same prefix across IGP instances
Procedure 6: Handling ILM resource exhaustion while assigning an SID index/label
Procedure 7: Handling ILM/NHLFE/other IOM or CPM resource exhaustion while resolving or programming an SID index/label

Parent topic: Segment routing operational procedures