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yxieca
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qiluo-msft
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Oct 20, 2021
* Exclude incrementing on aggregate device if packet received on mgmt interface * Fix DHCPv6 header offset calculation
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liushilongbuaa
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Dec 13, 2021
…ernal branch Related work items: sonic-net#525, sonic-net#534, sonic-net#909, sonic-net#927, sonic-net#930, sonic-net#934, sonic-net#935, sonic-net#937, sonic-net#938, sonic-net#939, sonic-net#940, sonic-net#943, sonic-net#944, sonic-net#945, sonic-net#946, sonic-net#948, sonic-net#1702, sonic-net#1923, sonic-net#1936, sonic-net#1942, sonic-net#2315, sonic-net#7281, sonic-net#7375, sonic-net#8659, sonic-net#8799, sonic-net#8868, sonic-net#8875, sonic-net#8935, sonic-net#8942, sonic-net#8956, sonic-net#8961, sonic-net#8966, sonic-net#8969, sonic-net#8971, sonic-net#8978, sonic-net#8991, sonic-net#8996, sonic-net#9001, sonic-net#9008, #3146150
kellyyeh
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This reverts commit 14aca81.
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Note: Cherry picked from #8975
Why I did it
DHCPmon was crashing due to DHCPv6 header offset miscalculation
How I did it
Fix DHCPv6 header offset calculation in dhcpmon.
Get the correct option ID in order to get the inner DHCP message.
Fix 'dhcpmon', exclude incrementing the aggregate device if packets received on the MGMT interface.
The MGMT is incremented to check if DHCP packets are traveling through MGMT interface, it is not part of the aggregate device counters.
To allow checking the MGMT interface health as well, we need to check the counters of MGMT interface also, so in function 'dhcp_device_check_health' we need to check the current device counters, not only the aggregate device.
How to verify it
Configure DHCPv6 Relay
Which release branch to backport (provide reason below if selected)
Description for the changelog
A picture of a cute animal (not mandatory but encouraged)
Signed off by: Kelly Yeh kellyyeh@microsoft.com