McLAG Stale Static mac is present in hardware even after the port-channel is removed from VLAN #2610
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Fix 1. VLT VLAN Member removal - As part of Vlan member remove flush the static entries from hardware and update the saved_fdb_entries for restoration 2. Mac move to ICL (due to VLT shut) - This is like mac move to ICL in this cases previously saved FDB entries in saved_fdb_entries has to be removed. So when VLT is added as vlan member mac entry will not be restored back to Hardware. 3. Mac move from ICL to Non vlan member VLT - delete the entry from hardware and save the entry for future programming (handle no bridge port case also) Issue Create Mclag intance. Create vlan 101 (make member for VLT ports as members) Send traffic on Vlan 101 so node-1 learns the mac address as dynamic and synced to node-2 as static entry. now remove node-2 vlan 101 membership for VLT port channel and check the h/w, ASIC_DB stale entry will be present. Test cases in VS:- 1. test_mclagFdb_remote_static_mac_add_member_remove_add 2. 3.
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What I did
Co-Author - @prasanna-cls
Why I did it
How I verified it
+# add static mac on vlan 200, portchannel5
+# remove portchannel5 from vlan 200
+# move mac from portchannel5 to portchannel6
+# delete mac from portchannel6
+# add portchannel5 to vlan 200
+# verify whether static mac is configured on portchannel5
Test-14 Remote Static MAC Add
add static mac on vlan 200, portchannel5
remove portchannel5 from vlan 200
move mac from portchannel5 to portchannel6
move mac from portchannel6 to portchannel5 check for entry removed
flush fdb entry
add portchannel5 to vlan 200
verify whether static mac is not configured on portchannel5
Details if related
Test cases Tried on device :-
1. Node - 2 VLT synced mac address configured as static - PASS
3. Remove VLT from VLAN 101 verify hardware mac entry is not present - PASS
4. Shut the VLT port verify mac entry moved to ICL - PASS
5. Flush the entry in Node-1 verify mac address in node-2 pointing to ICL is removed - PASS
6. no shut the VLT port and add VLT as member of VLAN 101 verify mac address is not present in H/W - PASS