diff --git a/debian/patches/21_check_snmp_load_update_fortiswitch_and_fortigate4.3 b/debian/patches/21_check_snmp_load_update_fortiswitch_and_fortigate4.3
new file mode 100644
index 0000000..cf0ffcb
--- /dev/null
+++ b/debian/patches/21_check_snmp_load_update_fortiswitch_and_fortigate4.3
@@ -0,0 +1,90 @@
+From 946bd37f5632fead9382f05a3600f0328dae53a1 Mon Sep 17 00:00:00 2001
+From: Martin Botka <16738302+Haxk20@users.noreply.github.com>
+Date: Mon, 1 Aug 2022 12:14:37 +0200
+Subject: [PATCH] check_snmp_load.pl: Add Fortiswitch & 4.3+ firmware fortigate
+
+This commit adds support for checking the fortiswitch CPU usage
+and also fortigate 4.3 and above firmware. This OID got changed but to keep
+backwards compatibility and not to break already running platforms depending on this
+the new OID was added as new type.
+
+Signed-off-by: Martin Botka <martin.botka@somainline.org>
+---
+ plugins/check_snmp_load.pl | 21 ++++++++++++++-------
+ 1 file changed, 14 insertions(+), 7 deletions(-)
+
+diff --git a/plugins/check_snmp_load.pl b/plugins/check_snmp_load.pl
+index 0959f6a..ecafb59 100755
+--- a/plugins/check_snmp_load.pl
++++ b/plugins/check_snmp_load.pl
+@@ -81,6 +81,12 @@
+ # Fortigate CPU
+ my $fortigate_cpu = ".1.3.6.1.4.1.12356.1.8.0";               # Fortigate CPU % usage
+ 
++# Fortigate CPU
++my $fortigate43_cpu = "1.3.6.1.4.1.12356.101.4.1.3.0";        # Fortigate 4.3 firmware CPU % usage
++
++# Fortigate CPU
++my $fortiswitch_cpu = ".1.3.6.1.4.1.12356.106.4.1.2.0";       # Fortiswitch CPU % usage
++
+ # Linkproof Appliance
+ my $linkproof_cpu = "1.3.6.1.4.1.89.35.1.55.0";               # CPU RE (Routing Engine Tasks)
+ 
+@@ -95,12 +101,12 @@
+ 
+ # valid values
+ my @valid_types
+-    = ("stand", "netsc", "netsl", "as400", "cisco", "cata", "cisg", "nsc", "fg", "bc", "nokia", "hp", "lp", "hpux", "n5k");
++    = ("stand", "netsc", "netsl", "as400", "cisco", "cata", "cisg", "nsc", "fg", "fg43", "fs", "bc", "nokia", "hp", "lp", "hpux", "n5k");
+ 
+ # CPU OID array
+ my %cpu_oid = (
+     "netsc", $ns_cpu_idle,  "as400", $as400_cpu,     "bc", $bluecoat_cpu,  "nokia", $nokia_cpu,
+-    "hp",    $procurve_cpu, "lp",    $linkproof_cpu, "fg", $fortigate_cpu, "n5k",   $n5k_cpu
++    "hp",    $procurve_cpu, "lp",    $linkproof_cpu, "fg", $fortigate_cpu, "fg43", $fortigate43_cpu, "fs", $fortiswitch_cpu, "n5k",   $n5k_cpu
+ );
+ 
+ # Globals
+@@ -113,7 +119,7 @@
+ my $o_verb      = undef;         # verbose mode
+ my $o_version   = undef;         # print version
+ 
+-# check type  : stand | netsc |  netsl | as400 | cisco | cata | cisg | nsc | fg | bc | nokia | hp | lp  | hpux
++# check type  : stand | netsc |  netsl | as400 | cisco | cata | cisg | nsc | fg | fg43| fs | bc | nokia | hp | lp  | hpux
+ my $o_check_type = "stand";
+ 
+ # End compatibility
+@@ -139,7 +145,7 @@
+ 
+ sub print_usage {
+     print
+-"Usage: $0 [-v] -H <host> -C <snmp_community> [-2] | (-l login -x passwd [-X pass -L <authp>,<privp>])  [-p <port>] [-P <protocol>] -w <warn level> -c <crit level> -T=[stand|netsl|netsc|as400|cisco|cata|cisg|nsc|fg|bc|nokia|hp|lp|hpux] [-f] [-t <timeout>] [-V]\n";
++"Usage: $0 [-v] -H <host> -C <snmp_community> [-2] | (-l login -x passwd [-X pass -L <authp>,<privp>])  [-p <port>] [-P <protocol>] -w <warn level> -c <crit level> -T=[stand|netsl|netsc|as400|cisco|cata|cisg|nsc|fg|fg43|fs|bc|nokia|hp|lp|hpux] [-f] [-t <timeout>] [-V]\n";
+ }
+ 
+ sub isnnum {                     # Return true if arg is not a number
+@@ -201,6 +207,8 @@ sub help {
+ 		cisg  : Cisco small business (SG500) CPU usage (1,5 & 15 minutes values)
+ 		nsc   : NetScreen CPU usage
+ 		fg    : Fortigate CPU usage
++		fg43  : Fortigate CPU usage for 4.3 firmware
++		fs    : Fortiswitch CPU usage
+ 		bc    : Bluecoat CPU usage
+ 		nokia : Nokia CPU usage
+ 		hp    : HP procurve switch CPU usage
+@@ -806,8 +814,8 @@ sub is_legacy_snmp_version {
+     exit $exit_val;
+ }
+ 
+-################## CPU for : AS/400 , Netsnmp, HP, Bluecoat, linkproof, fortigate  ###########
+-if ($o_check_type =~ /netsc|as400|bc|nokia|^hp$|lp|fg/) {
++################## CPU for : AS/400 , Netsnmp, HP, Bluecoat, linkproof, fortigate, fortigate43, fortiswitch  ###########
++if ($o_check_type =~ /netsc|as400|bc|nokia|^hp$|lp|fg|fg43|fs/) {
+ 
+     # Get load table
+     my @oidlist = $cpu_oid{$o_check_type};
+@@ -965,4 +973,3 @@ sub is_legacy_snmp_version {
+     ? print " | cpu_prct_used=$cpu_used%;$o_warn;$o_crit\n"
+     : print "\n";
+ exit $exit_val;
+-
diff --git a/debian/patches/series b/debian/patches/series
index 74089a9..fded68c 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -9,5 +9,6 @@
 18_check_snmp_int_fix_perf_out
 19_check_snmp_int_remove_unneeded_my
 20_check_snmp_int_avaid_huge_amount_of_regex
+21_check_snmp_load_update_fortiswitch_and_fortigate4.3
 50_disable_epn
 51_fix_privacy_doc