Unified Load Balancer Configuration and Administration Guide, Release 2026.02

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ULB overview

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Overview

Explains the Unified Load Balancer (ULB), a Cisco proprietary network function that manages traffic distribution across worker nodes to ensure high availability and reliability in network infrastructures.

The Unified Load Balancer (ULB) is a Cisco proprietary node or network function (NF) that manages traffic distribution of incoming network traffic equally across all worker nodes and ensures high availability and reliability across network infrastructures.

  • Developed using the Subscriber Microservices Infrastructure (SMI), a Cloud Native (CN) application.

  • Delivered as a CN-based image and deployed as a CN application using the SMI Cluster Manager (SMI CM).

  • Supports protocol applications utilizing UDP and TCP that require load balancing across multiple protocol pods.