Forum Discussion
NimbostratusIssue with possible conenction not dropping between requests for device
Here is the scenario Start with 2 Welch Allyn devices, device A and device B Start with two facilities, Facility 1 and Facility 2 flow is: Device -> F5 -> WebSphere App Server -> F5 -> Device
Facility 1 was the first to go live with NewApp. Device A, set up with a Facility 1 patient, was directed through a virtual IP (VIP) on the F5 LTM. It works fine.
Facility 2 was preparing to go live with NewApp. Device B was set up for Facility 2 patient and pointed to the VIP. Login works, patient scans do not return patient demographics. (at this point Device A still works with Facility 1 patients)
As a troubleshooting step, we created the same VIP for a dev domain.
Application support took a device, set it up with Facility 2 patient first, pointed it at the DEV VIP, it worked. Application support took another seperate device, set it up with Facility 1 patient, login worked, scan patient – no demographic info returns.
If any device is pointed directly at the WAS server (DEV or PROD) it works every time, regardless of Patient Facility. This really seems to point a finger at F5. This leads us to believe that whatever facility goes through the F5 first, works – but after - ONLY that first facilities patients will work.
Also these devices (Welch Allyn Barcode scanner) can only point to an IP address so we are eliminating the use of a WIP(GTM) for this application.
Thanks.
3 Replies
El_JefeShane -
Check to make sure you have OneConnect disabled. I have seen it cause similar issues.
Jeff
- Kevin_Stewart
Employee
Check to make sure you have OneConnect disabled. I have seen it cause similar issues.
I would say this also depends on the iRule and/or HTTP class used to flip traffic between the pools. Can you share your config? Do you have any "match across virtual" persistence settings?
Shane_Terrick_9Here is the config
General Properties Name H1PRP_VL Partition Common Destination Type: Host Network Address:
10.24.57.124 Service Port
0 * All Ports Availability
State
Enabled Configuration: Advanced Type
Standard Protocol
TCP Protocol Profile (Client)
tcp Protocol Profile (Server)
( Use Client Profile ) OneConnect Profile
None NTLM Conn Pool
None HTTP Profile
None FTP Profile
None Stream Profile
None XML Profile
None SSL Profile (Client)
None SSL Profile (Server)
None Authentication Profiles Enabled Available
<<
ssl _ cc _ ldap ssl _ crldp ssl _ ocsp RTSP Profile
None Diameter Profile
None SIP Profile
None Statistics Profile
None VLAN and Tunnel Traffic
All VLANs and Tunnels SNAT Pool
Auto Map Rate Class
None Traffic Class Enabled Available
<<
Connection Limit
0 Connection Mirroring (May degrade performance when enabled.) Address Translation Enabled Port Translation Enabled Source Port
Preserve Clone Pool (Client)
None Clone Pool (Server)
None Last Hop Pool
None
Load Balancing Default Pool
H 1 ENG _ P 2 DA Default Persistence Profile
None Fallback Persistence Profile
None Update iRules Manage... Name No records to display. HTTP Class Profiles Manage... Name No records to display.
General Properties Name H1ENG_P2DA Partition Common Availability Available (Enabled) - The pool is available Configuration: Advanced Health Monitors Active Available
Anon _ HTTP _ 80 <<
ANON _ HTTP _ 80 _ LONG Anon _ HTTPS _ 443 Anonymous _ Snoop EnterpriseRx SMB _ FIle _ Share Availability Requirement Health Monitor(s) All Allow SNAT
Yes Allow NAT
Yes Action On Service Down
None Slow Ramp Time seconds 10 IP ToS to Client
Pass Through IP ToS to Server
Pass Through Link QoS to Client
Pass Through Link QoS to Server
Pass Through Reselect Tries
0
