Fix identification of Brocade CES

Changes

@@ -1,3 +1,9 @@
+version 3.43 (2018-02-02)
+
+  [BUG FIXES]
+
+  * Fix identification of Brocade CES
+
 version 3.42 (2018-02-02)
 
   [ENHANCEMENTS]

lib/SNMP/Info.pm

@@ -1706,7 +1706,9 @@ sub device_type {
             =~ /^(BayStack|Ethernet\s+Routing\s+Switch)\s[2345](\d){2,3}/i );
 
         # Nortel Contivity
-        $objtype = 'SNMP::Info::Layer3::Contivity' if $desc =~ /(\bCES\b|\bNVR\sV\d)/;
+        $objtype = 'SNMP::Info::Layer3::Contivity'
+          if $desc =~ /(\bCES\b|\bNVR\sV\d)/
+              and (!defined $id or !defined $l3sysoidmap{$id});
 
         # SonicWALL
         $objtype = 'SNMP::Info::Layer3::SonicWALL' if $desc =~ /SonicWALL/i;