FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
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Article Id 244456
Description This article describes the differences between 'debugzone' and 'checksum' in an HA cluster.
Scope FortiGate HA cluster.
Solution

The checksum of cluster units can be viewed with the following command:

 

diag sys ha checksum cluster

 

================== FGT1 =================
is_manage_master()=0, is_root_master()=0

debugzone

global: : 79 24 76 8a a8 03 9a 81 dc c4 3c f8 96 72 59 11
root: cf 85 55 fe a7 e5 7c 6f a6 88 e5 a9 ea 26 e6 92
all: f4 62 b2 ce 81 9a c9 04 8f 67 07 ec a7 44 60 1f

checksum

global: : 79 24 76 8a a8 03 9a 81 dc c4 3c f8 96 72 59 11
root: cf 85 55 fe a7 e5 7c 6f a6 88 e5 a9 ea 26 e6 92
all: f4 62 b2 ce 81 9a c9 04 8f 67 07 ec a7 44 60 1f

 

================== FGT2 ==================

is_manage_master()=1, is_root_master()=1

debugzone

global: : 79 24 76 8a a8 03 9a 81 dc c4 3c f8 96 72 59 11
root: cf 85 55 fe a7 e5 7c 6f a6 88 e5 a9 ea 26 e6 92
all: f4 62 b2 ce 81 9a c9 04 8f 67 07 ec a7 44 60 1f

checksum

global: : 79 24 76 8a a8 03 9a 81 dc c4 3c f8 96 72 59 11
root: cf 85 55 fe a7 e5 7c 6f a6 88 e5 a9 ea 26 e6 92
all: f4 62 b2 ce 81 9a c9 04 8f 67 07 ec a7 44 60 1f

 

Sometimes, the debug zone on each device does not match. For example:

 

diag sys ha checksum show

 

================== FGT1 =================
is_manage_master()=0, is_root_master()=0

debugzone

global: : 79 24 76 8a a8 03 9a 81 dc c4 3c f8 96 72 59 11
root: cf 85 55 fe a7 e5 7c 6f a6 88 e5 a9 ea 26 e6 92
all: f4 62 b2 ce 81 9a c9 04 8f 67 07 ec a7 44 60 1f

checksum

global: : 79 24 76 8a a8 03 9a 81 dc c4 3c f8 96 72 59 11
root: cf 85 55 fe a7 e5 7c 6f a6 88 e5 a9 ea 26 e6 88 <----- Does not match debug zone
all: f4 62 b2 ce 81 9a c9 04 8f 67 07 ec a7 44 60 1f

 


The checksum reflects the configuration running on the device. The debug zone most likely displays configuration changes that are pending being written into the checksum.

 

If there is a difference between both, it means changes have been made to the device but not yet written into the actual configuration.

 

Usually, this state should only be seen for a very short duration. If the state persists for a longer time, use the command 'diagnose sys ha checksum recalculate'.

 

Additionally, it is possible to recalculate only 'root' or 'global' using the following commands:

 

diag sys ha checksum recalculate global

diag sys ha checksum recalculate root

 

If the correct results still do not appear, it may be necessary to reboot the device, as the CMDB server may not be working correctly.

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