A load balancer is a device that acts as a reverse proxy and distributes network or application traffic across a number of servers. Load balancers are used to increase capacity (concurrent users) and reliability of applications. They improve the overall performance of applications by decreasing the burden on servers associated with managing and maintaining application and network sessions, as well as by performing application-specific tasks.
The Technology Platform Services team in ITS-Enterprise Infrastructure offers load balancing services to select enterprise applications and workloads. The capability exists to provide DNS load balancing, Layer 4 & Layer 7 load balancing, or both.
Current Status
Maintenance
Past 90 Days
Alert History
ITS Enterprise Infrastructure will be patching the F5 load balancers with a hotfix to address a bug affecting the management interface. This will include the LTMs in both ITF and LC. There should be no customer impact to load balanced applications due to the redundant architecture.
ITS Enterprise Infrastructure will be patching the F5 load balancers to address a security vulnerability. This will include the physical chassis, LTMs, and GTMs in both ITF and LC. There should be no customer impact to load balanced applications due to the redundant architecture.
The F5 load balancers will have additional backend IP addresses added to to address ephemeral port exhaustion concerns.
The F5 team will be performing emergency patching on the following devices for a critical security vulnerability during business hours today:
All LTMs (ITF & LC)
All GTMs (ITF & LC)
All physical chassis (ITF & LC)
Impact: there should be no downtime for customer applications, but end users may notice a session interruption as we failover between primary and failover devices.
The F5 LTM appliances will be upgraded to address recently announced security vulnerabilities. There are redundant appliances in both data centers, so no impact to customers or applications is expected.
The F5 hardware chassis will be updated to version 14.1.4.1 to address an issue present in the current version of software.
The work will be non-disruptive due to redundant hardware, but client sessions might be interrupted during failovers for load balanced applications and services
The F5 LTMs will be updated to version 14.1.4.1 to address an issue present in the current version of software.
The work will be non-disruptive due to redundant hardware, but client sessions might be interrupted during failovers for load balanced applications and services.
The F5 GTMs will be updated to version 14.1.4.1 to address an issue present in the current version of software.
The work will be non-disruptive due to redundant hardware.
ITS will perform a test software upgrade on the standby Local Traffic Manager (LTM) in preparation for the production upgrade in January. The standby LTM will be restored to the software version it was running prior to the work after testing is complete.
Load Balancer Contact Information
Please contact either the Core Application Services or Specialized Application Services teams in ITS-Enterprise Infrastructure, depending on which service your server or application uses. If your server is co-managed, please reach out to Technology Platform Services and they will direct your request to the correct group for your system(s).