Commit Graph

5 Commits

Author SHA1 Message Date
Lawrence Lee
d9768be475 [tunnel_pkt_handler]: Skip nonexistent intfs (#12424)
- 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>
2022-10-25 20:44:08 +00:00
yozhao101
ab87fb8b60 [tunnel_packet_handler] Add a whitespace in the warning syslog message. (#11232)
*This PR aims to add a whitespace in the warning syslog message of process tunnel_packet_handler.
Signed-off-by: Yong Zhao <yozhao@microsoft.com>
2022-06-30 05:22:34 +00:00
Lawrence Lee
b31df59c7c
[tun_pkt]: Wait for AsyncSniffer to init fully (#10346)
Fix for Tunnel packet handler can crash at system startup 
Signed-off-by: Lawrence Lee <lawlee@microsoft.com>
2022-03-30 14:03:29 -07:00
Lawrence Lee
eff80f750f
[swss]: Reduce tunnel_packet_handler memory usage (#9762)
* Configure scapy to not store sniffed packets

Signed-off-by: Lawrence Lee <lawlee@microsoft.com>
2022-02-07 11:55:48 -08:00
Lawrence Lee
7bd0a2ad11
[swss]: Listen for undeliverable tunnel packets (#9348)
- 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.
2021-12-14 14:45:23 -08:00