- Skip the interface status check if the interface does not exist. In the future, when the interface is created/comes up this check will be triggered again.
Signed-off-by: Lawrence Lee <lawlee@microsoft.com>
#### Why I did it
Update scripts in sonic-buildimage from py-swsssdk to swsscommon
#### How I did it
Change code to use swsscommon.
#### How to verify it
Pass all E2E test case
#### Which release branch to backport (provide reason below if selected)
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- Note we only backport fixes to a release branch, *not* features!
- Please also provide a reason for the backporting below.
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- [x] 202006
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- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
#### Description for the changelog
Update scripts in sonic-buildimage from py-swsssdk to swsscommon
#### Link to config_db schema for YANG module changes
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#### A picture of a cute animal (not mandatory but encouraged)
- Create a script in the orchagent docker container which listens for these encapsulated packets which are trapped to CPU (indicating that they cannot be routed/no neighbor info exists for the inner packet). When such a packet is received, the script will issue a ping command to the packet's inner destination IP to start the neighbor learning process.
- This script is also resilient to portchannel status changes (i.e. interface going up or down). An interface going down does not affect traffic sniffing on interfaces which are still up. When an interface comes back up, we restart the sniffer to start capturing traffic on that interface again.
