The SNMP OID for IFName '1.3.6.1.2.1.31.1.1.1.1'returns the interface…

… alias. It should return the interface name as 'EthernetXXX'.

What I did:
Change ifName in ifXTable from "EthX(PortY)" to "EthernetXXX".

Why I did it:
Requests that ifName in ifXTable is interface name same as ones showed in "show interfaces status".

How I verified it:
Use snmpwalk command "snmpwalk -v 2c -c public <device_ip> 1.3.6.1.2.1.31.1.1.1.1" to get ifName and front ports' name should be EthernetXXX.

src/sonic_ax_impl/mibs/ietf/rfc2863.py

@@ -197,7 +197,7 @@ def interface_name(self, sub_id):
         elif oid in self.vlan_oid_name_map:
             result = self.vlan_oid_name_map[oid]
         else:
-            result = self.if_alias_map[self.oid_name_map[oid]]
+            result = self.oid_name_map[oid]
 
         return result