- play_arrow Overview
- play_arrow Understanding Contrail
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- play_arrow Installing and Upgrading Contrail
- play_arrow Server Requirements and Supported Platforms
- play_arrow Installing Contrail and Provisioning Roles
- Introduction to Containerized Contrail Modules
- Introduction to Contrail Microservices Architecture
- Downloading Installation Software
- Overview of contrail-ansible-deployer used in Contrail Command for Installing Contrail with Microservices Architecture
- Installing Contrail with OpenStack and Kolla Ansible
- Configuring the Control Node with BGP
- Contrail Global Controller
- Role and Resource-Based Access Control
- play_arrow Installation and Configuration Scenarios
- play_arrow Upgrading Contrail Software
- play_arrow Backup and Restore Contrail Software
- play_arrow Contrail Command
- play_arrow Multicloud Contrail
- play_arrow Using Contrail with Red Hat
- play_arrow Using Contrail with Juju Charms
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- play_arrow Monitoring and Troubleshooting the Network Using Contrail Analytics
- play_arrow Understanding Contrail Analytics
- play_arrow Configuring Contrail Analytics
- play_arrow Using Contrail Analytics to Monitor and Troubleshoot the Network
- Monitoring the System
- Debugging Processes Using the Contrail Introspect Feature
- Monitor > Infrastructure > Dashboard
- Monitor > Infrastructure > Control Nodes
- Monitor > Infrastructure > Virtual Routers
- Monitor > Infrastructure > Analytics Nodes
- Monitor > Infrastructure > Config Nodes
- Monitor > Networking
- Query > Flows
- Query > Logs
- Example: Debugging Connectivity Using Monitoring for Troubleshooting
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ECMP Load Balancing in the Service Chain
Traffic flowing through a service chain can be load-balanced by distributing traffic streams to multiple service virtual machines (VMs) that are running identical applications. This is illustrated in Figure 1, where the traffic streams between VM-A and VM-B are distributed between Service VM-1 and Service VM-2. If Service VM-1 goes down, then all streams that are dependent on Service VM-1 will be moved to Service VM-2.
The following are the major features of load balancing in the service chain:
Load balancing can be configured at every level of the service chain.
Load balancing is supported in routed and bridged service chain modes.
Load balancing can be used to achieve high availability—if a service VM goes down, the traffic passing through that service VM can be distributed through another service VM.
A load balanced traffic stream always follows the same path through the chain of service VM.
