[vlanmgr] Disable arp_evict_nocarrier for vlan host intf

Signed-off-by: Longxiang Lyu <[email protected]>
sonic-net · Oct 6, 2022 · cc21284 · cc21284
1 parent 31c9321
commit cc21284
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/cfgmgr/vlanmgr.cpp b/cfgmgr/vlanmgr.cpp
@@ -134,6 +134,11 @@ bool VlanMgr::addHostVlan(int vlan_id)
     std::string res;
     EXEC_WITH_ERROR_THROW(cmds, res);
 
+    res.clear();
+    const std::string echo_cmd = std::string("")
+      + ECHO_CMD + " 0 > /proc/sys/net/ipv4/conf/" + VLAN_PREFIX + std::to_string(vlan_id) + "/arp_evict_nocarrier";
+    swss::exec(echo_cmd, res);
+
     return true;
 }