AGFA
Contents
1 Introduction
Enterprise Imaging Exchange is AGFA Healthcare's Picture Archiving and Communication System (PACS). It provides the ability to transfer patient studies between hospitals quickly, securely, and reliably without reliance on CDs or DVDs. AGFA's Enterprise Imaging Exchange helps solve the operational challenges of the enterprise imaging strategy, by establishing a secure health information exchange network between collaborating health providers.
Solving the operational challenges of today's enterprise imaging strategy requires that access to AGFA's Core & Web Servers is always-on and the user application experience is optimal and secure.
The Kemp LoadMaster delivers an exceptional, cost effective, and easy to use solution which by employing High Availability, Global Server Load Balancing (GSLB), intelligent load balancing, and intelligent server health checking can support AGFA's always-on application experience initiative.
This document provides guidance and recommended settings on how to load balance AGFA Enterprise Imaging Exchange with a Kemp LoadMaster.
1.1 Document Purpose
This document provides the recommended LoadMaster settings used when load balancing AGFA Enterprise Imaging Exchange. The Kemp Support Team is available to provide solutions for scenarios not explicitly defined. The Kemp Support site can be found at: https://support.kemptechnologies.com.
1.2 Intended Audience
This document is intended to be read by anyone who is interested in configuring the LoadMaster to optimize AGFA Enterprise Imaging Exchange.
2 Template
Kemp has developed a template containing our recommended settings for this workload. You can install this template to help create Virtual Services (VSs) because it automatically populates the settings. You can use the template to easily create the required VSs with the recommended settings. For some workloads, additional manual steps may be required such as assigning a certificate or applying port following, these steps are covered in the document, if needed.
You can remove templates after use and this will not affect deployed services. If needed, you can make changes to any of the VS settings after using the template.
Download released templates from the following page: LoadMaster Templates.
For more information and steps on how to import and use templates, refer to the Virtual Services and Templates, Feature Description on the Kemp Documentation page.
3 Architecture
AGFA Enterprise Imaging consists of two back end server types, core servers, and web servers.
AGFA's core servers handle requests in various ports categorized as Client ports, DICOM ports, HL7 ports, ARR ports, and Installer ports.
4 Configure the LoadMaster
There are two global settings that Kemp recommends enabling. Refer to the sections below for details.
4.1 Enable Subnet Originating Requests Globally
It is best practice to enable the Subnet Originating Requests option globally.
In a one-armed setup (where the Virtual Service and Real Servers are on the same network/subnet) Subnet Originating Requests is usually not needed. However, enabling Subnet Originating Requests should not affect the routing in a one-armed setup.
In a two-armed setup where the Virtual Service is on network/subnet A, for example, and the Real Servers are on network B, Subnet Originating Requests should be enabled on LoadMasters with firmware version 7.1-16 and above.
When Subnet Originating Requests is enabled, the Real Server sees traffic originating from 10.20.20.21 (LoadMaster eth1 address) and responds correctly in most scenarios.
With Subnet Originating Requests disabled, the Real Server sees traffic originating from 10.0.0.15 (LoadMaster Virtual Service address on eth0) and responds to eth0 which could cause asymmetric routing.
When Subnet Originating Requests is enabled globally, it is automatically enabled on all Virtual Services. If the Subnet Originating Requests option is disabled globally, you can choose whether to enable Subnet Originating Requests on a per-Virtual Service basis.
To enable Subnet Originating Requests globally, follow the steps below:
1. In the main menu of the LoadMaster User Interface (UI), go to System Configuration > Miscellaneous Options > Network Options.
2. Select the Subnet Originating Requests check box.
4.2 Enable Check Persist Globally
It is recommended that you change the Always Check Persist option to Yes - Accept Changes. Use the following steps:
1. Go to System Configuration > Miscellaneous Options > L7 Configuration.
2. Click the Always Check Persist drop-down arrow and select Yes - Accept Changes.
5 Virtual Services
AGFA Enterprise Imaging consists of two back end server types, core servers, and web servers.
AGFA's core servers handle requests in various ports categorized as Client ports, DICOM ports, HL7 ports, ARR ports, and Installer ports.
This step-by-step setup of Virtual Services (VSs) leverages the Kemp application template for AGFA Enterprise Imaging Exchange.
The table in each section outlines the settings configured by the application template. You can use this information to manually configure Virtual Services or use the Kemp LoadMaster Application Programming Interface (API) and automation tools.
SSL/TLS certificates should be added before creating this Virtual Service. For further information on certificates, refer to the SSL Accelerated Services Feature Description.
5.1 Create the AGFA Web Server Virtual Service
The following are the steps involved and the recommended settings to configure the AGFA Web Server Virtual Service with or without XERO Xtend:
1. In the main menu of the LoadMaster Web User Interface (WUI), go to Virtual Services > Add New.
2. Type a valid Virtual Address.
3. Select the AGFA Web Server with XERO Xtend or AGFA Web Server without XERO Xtend template in the Use Template drop-down list depending on the environment.
4. Click Add this Virtual Service.
5. Expand the SSL Properties section.
6. Select the certificate to use from Available Certificates and click the arrow (>) to move it to Assigned Certificates.
7. Expand the SubVSs section.
8. Click Modify on SubVS1 (Server1).
9. Expand the Real Servers section.
10. Click Add New.
11. Type the Real Server Address.
12. Confirm that port 443 is entered.
13. Click Add This Real Server.
14. Repeat the steps above to add more Real Servers as needed. Each SubVS must only have a single Real Server added.
In some deployments, additional Real Servers will be required. This will require the creation of additional SubVSs and Content Rules to support these environments.
5.1.1 Configure AGFA Web Server Content Matching Rules
AGFA Web Server configuration requires the use of Content Rules and Header Modification Rules to direct traffic to the appropriate Real Server. These Content Rules include a unique Hash value which must be modified for proper operation:
1. In the main menu of the LoadMaster WUI, go to Rules & Checking > Content Rules.
2. Click Modify for HASH_MATCH_Server1.
3. Replace the Match String <Enter Hash Value> with a valid Hash value.
4. Click Modify Rule.
5. Repeat the above steps for all Content Matching Rules.
5.1.2 Configure AGFA Web Server Header Modification Rules
AGFA Web Server configuration requires the use of Content Rules and Header Modification Rules to direct traffic to the appropriate Real Server. These Content Rules include a unique Hash value which must be modified for proper operation:
1. In the main menu of the WUI, go to Rules & Checking > Content Rules.
2. Click Modify for MODIFY_URL_Server1.
3. Replace the <Enter Hash Value> section of the Match String with a valid Hash value.
4. Click Modify Rule.
5. Repeat the above steps for all Header Modification Rules.
5.1.3 AGFA Web Server with XERO Xtend Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
Main Virtual Service |
|
|
API Parameter |
API Value |
| port | 443 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| IdleTime | 360 |
| SSLAcceleration | 1 |
| SSLReencrypt | 1 |
| TLSType | 3 |
| CipherSet | BestPractices |
| ExtraHdrKey | X-Explicit-Bal |
| ExtraHdrValue | 1 |
| CheckType | https |
| EnhancedHealthcheck | 1 |
| SubVSs | |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| port | 443 |
| prot | tcp |
| CheckType | https |
| CheckUrl | /wado/status/deployed |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.1.4 AGFA Web Server without XERO Xtend Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
Main Virtual Service |
|
|
API Parameter |
API Value |
| port | 443 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | cookie |
| Cookie | JSESSIONIDSSO |
| PersistTimeout | 3600 |
| IdleTime | 360 |
| SSLAcceleration | 1 |
| SSLReencrypt | 1 |
| TLSType | 3 |
| CipherSet | BestPractices |
| ExtraHdrKey | X-Explicit-Bal |
| ExtraHdrValue | 1 |
| CheckType | https |
| EnhancedHealthcheck | 1 |
| SubVSs | |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| port | 443 |
| prot | tcp |
| CheckType | https |
| CheckUrl | /wado/status/deployed |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2 Create the AGFA Core Server Virtual Services
The following are the steps involved and the recommended settings to configure the AGFA Core Server Virtual Service:
1. In the main menu of the LoadMaster WUI, go to Virtual Services > Add New.
2. Type a valid Virtual Address.
3. Select the AGFA Core Server template in the Use Template drop-down list.
4. Click Add this Virtual Service.
5.2.1 Configure AGFA Core Server Virtual Services
There is a total of 19 Virtual Services created from the AGFA Core Server template. These AGFA Core Server Virtual Services require some additional configuration unique to each environment. The following steps need to be followed for all 19 Virtual Services:
1. In the main menu, go to Virtual Services > View/Modify Services.
2. Click Modify on the relevant Virtual Service.
3. Expand the SSL Properties section (only for Virtual Services with SSL Acceleration enabled).
4. Select the certificate to use from Available Certificates and click the arrow (>) to move it to Assigned Certificates (only for Virtual Services with SSL Acceleration enabled).
5. Expand the Real Servers section.
6. Replace agfa.company.com with the correct HTTP/1.1 Host based on the environment (only for Virtual Services with HTTP/1.1 Host enabled).
7. Click Add New.
8. Type the Real Server Address.
9. Click Add This Real Server.
10. Repeat the steps 7 - 9 above to add more Real Servers as needed.
5.2.2 AGFA Core Server Client Port 80 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
80 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | cookie |
| Cookie | JESSIONID |
| PersistTimeout | 3600 |
| AddVia | 5 |
| CheckType | http |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.3 AGFA Core Server DICOM 104 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
104 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status?type=dicom&port=104 |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.4 AGFA Core Server DICOM 110 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
110 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| Serverinit | 3 |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status?type=dicom&port=110 |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.5 AGFA Core Server Client Port 443 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
443 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | cookie |
| Cookie | JSESSIONID |
| PersistTimeout | 3600 |
| SSLAcceleration | 1 |
| SSLReencrypt | 1 |
| TLSType | 3 |
| CipherSet | BestPractices |
| AddVia | 5 |
| CheckType | https |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.6 AGFA Core Server HL7 2310 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
2310 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| IdleTime | 86400 |
| CheckType | tcp |
| CheckPort | 2310 |
5.2.7 AGFA Core Server HL7 2311 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
2311 |
| prot | tcp |
| VStype | gen |
| SubnetOrignating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| IdleTime | 86400 |
| CheckType | tcp |
| CheckPort | 2311 |
5.2.8 AGFA Core Server DICOM 2762 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
2762 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status?type=dicom&port=2762 |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.9 AGFA Core Server Client Port 4447 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
4447 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| Serverinit | 3 |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.10 AGFA Core Server Client Port 5222 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
5222 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| IdleTime | 360 |
| CheckType | tcp |
| CheckPort | 5222 |
5.2.11 AGFA Core Server Client Port 5223 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
5223 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| IdleTime | 360 |
| CheckType | tcp |
| CheckPort | 5223 |
5.2.12 AGFA Core Server ARR 6514 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
6514 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| CheckType | tcp |
| CheckPort | 6514 |
5.2.13 AGFA Core Server Client Port 7443 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
7443 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | none |
| IdleTime | 360 |
| CheckType | tcp |
| CheckPort | 7443 |
5.2.14 AGFA Core Server Client Port 8080 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
8080 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| Persist | cookie |
| Cookie | JSESSIONID |
| PersistTimeout | 3600 |
| AddVia | 5 |
| CheckType | http |
| CheckPort | 8080 |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.15 AGFA Core Server Client Port 8443 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
8443 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| PersistTimeout | 360 |
| CheckType | https |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.16 AGFA Core Server Client Port 9080 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
9080 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| PersistTimeout | 360 |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.17 AGFA Core Server Client Port 9081 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
9081 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| PersistTimeout | 360 |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.18 AGFA Core Server Client Port 10080 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
10080 |
| prot | tcp |
| VStype | http |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| PersistTimeout | 360 |
| CheckType | http |
| CheckPort | 80 |
| CheckUrl | /status |
| CheckHost | <agfa.company.com> |
| CheckUse1.1 | 1 |
| CheckUseGet | 1 |
5.2.19 AGFA Core Server Client Port 10123 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
10123 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| PersistTimeout | 360 |
| CheckType | tcp |
| CheckPort | 10123 |
5.2.20 AGFA Core Server Client Port 10124 Virtual Service Recommended API Settings (optional)
This table outlines the API parameters and values set using the Kemp application template. You can use these settings with scripts and automation tools.
|
API Parameter |
API Value |
|---|---|
|
port |
10124 |
| prot | tcp |
| VStype | gen |
| SubnetOriginating | 1 |
| Forcel7 | 1 |
| Schedule | lc |
| PersistTimeout | 360 |
| CheckType | tcp |
| CheckPort | 10124 |
Last Updated Date
This document was last updated on 18 February 2022.