Environment:
NetScaler Virtual Appliance
Product: Netscaler (Gateway)
Platform: NetScaler Virtual Appliance 450010
Build: NetScaler NS11.0: Build 70.12.nc (Observed First )
Version and Build can be 10.5.X/11.0.X/11.1.X/12.0.X
Symptom:
Users would be reaching to Netscaler Gateway to access the intranet Resources. If more than 120-150 users simultaneously attempt to reach Netscaler Gateway to access Intranet Resources, there would be sudden connection drops for the new and existing users.Secondly Netscaler would hung up or even crash in such scenario.
Identifying the Problem:
Such type of crashes / connection timeout occurs due to Compression which is already enabled. Look for the command as below:
bind tunnel global ns_tunnel_cmpall_gzip - Here compression is enabled globally
Workaround:
Disabling the compression which is causing the connection timeouts / crash on the Netscaler if more users are attempting to access Netscaler Gateway at the same time.
Command is below:
unbind tunnel global ns_tunnel_cmpall_gzip
Permanent Fix:
Engineering Team is actively working on the issue.
P.S : Kindly contact Citrix Support for any further information if such issue/symptom is observed