Exinda Network Orchestrator
5 Troubleshooting
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Resolution
Encrypted communications or encrypted email and attachments cannot currently be decrypted by the Exinda. Verify
that encryption is disabled on all client computers and that the MAPI protocol is not being encrypted. See
Disable encryption on the Exchange server
and
For more information, refer to
Turn off MAPI encryption in Microsoft Outlook
5.3.4 Reduction ratio for MAPI is different between Client-side and Server-side Exindas
Problem
The Reduction Ratio percentage reported on the client-side Exinda is not the same as the percentage reported on the
server-side Exinda.
Explanation
As the MAPI traffic passes through the client-side and server-side Exinda appliances, the traffic is decompressed and
optimized at different points in the transaction. Because of the timing of the decompressing and optimizing, the
appliances may report different reduction ratio percentages.
5.4 Troubleshoot issues with TCP acceleration
If you are experiencing issues with acceleration, the following are possible troubleshooting options to consider:
Ensure that the traffic is processed by the expected policy.
Go to the Real Time Conversations monitor and check the Show Policies option, which groups the traffic by the virtual
circuit and policy. Look for the desired traffic in the expected policy. If the traffic is being accelerated by TCP, the
background colour will be yellow.
If you have a mix of 7.4, 7.0, 6.4.3, and pre-6.4.3 appliances, perhaps the Acceleration TCP Option Mode is not set cor-
rectly. Exinda had used option 30 to indicate acceleration but needed to change this when option 30 was assigned to
indicate multi-path TCP. A number of choices were added to ensure compatibility with earlier appliances. Ensure that
you believe your choice is correct for your situation or choose another selection.
If you have the Multi-Path TCP Acceleration Bypass setting enabled and and Acceleration TCP Option Mode is set to
liberally use option 30, then when option 30 is encountered it will be interpreted as being multi-path TCP rather than
Exinda acceleration and thus will not be accelerated. Ensure these settings are set correctly.
If you have a backhaul scenario and you have not enabled the Dual Bridge Bypass setting, then acceleration will not
work properly when the SYN from the client is not processed on the same bridge as the SYN/ACK from the server.
You can also attempt to diagnose the issue by viewing the system log or the system diagnostics information.
The system diagnostics for acceleration can be filtered for SMB acceleration, WAN memory, or TCP acceleration.
The system log file can be filtered for SMB acceleration (smbad), WAN memory (wmd), TCP acceleration (tcpad), or
community (communityd).
For more information, refer to
5.5 Troubleshoot issues with SMB file acceleration
If you are experiencing issues with SMB file acceleration, the following are possible troubleshooting options to consider:
Ensure that the traffic is being processed by the expected policy.
Summary of Contents for EXNV-10063
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