diff --git a/lib/cmdlib.py b/lib/cmdlib.py
index 1dbd2d1d238efe2e29a8a1675c709cfbcd156164..673bfdeb450e1c8e7a2655cdf9899bb8b5cbd8ce 100644
--- a/lib/cmdlib.py
+++ b/lib/cmdlib.py
@@ -1486,12 +1486,18 @@ class LUSetClusterParams(LogicalUnit):
                                      (node, vgstatus))
 
     self.cluster = cluster = self.cfg.GetClusterInfo()
-    # validate beparams changes
+    # validate params changes
     if self.op.beparams:
       utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
       self.new_beparams = objects.FillDict(
         cluster.beparams[constants.PP_DEFAULT], self.op.beparams)
 
+    if self.op.nicparams:
+      utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
+      self.new_nicparams = objects.FillDict(
+        cluster.nicparams[constants.PP_DEFAULT], self.op.nicparams)
+      objects.NIC.CheckParameterSyntax(self.new_nicparams)
+
     # hypervisor list/parameters
     self.new_hvparams = objects.FillDict(cluster.hvparams, {})
     if self.op.hvparams:
@@ -1539,6 +1545,9 @@ class LUSetClusterParams(LogicalUnit):
       self.cluster.enabled_hypervisors = self.op.enabled_hypervisors
     if self.op.beparams:
       self.cluster.beparams[constants.PP_DEFAULT] = self.new_beparams
+    if self.op.nicparams:
+      self.cluster.nicparams[constants.PP_DEFAULT] = self.new_nicparams
+
     if self.op.candidate_pool_size is not None:
       self.cluster.candidate_pool_size = self.op.candidate_pool_size
 
diff --git a/lib/opcodes.py b/lib/opcodes.py
index f49bfb7f5beaa0bfab1ecdb756d2e7c2f40604ee..c40d51bc7f6cd6c5d405edcb80cfd7ae8cd86556 100644
--- a/lib/opcodes.py
+++ b/lib/opcodes.py
@@ -262,6 +262,7 @@ class OpSetClusterParams(OpCode):
     "enabled_hypervisors",
     "hvparams",
     "beparams",
+    "nicparams",
     "candidate_pool_size",
     ]
 
diff --git a/scripts/gnt-cluster b/scripts/gnt-cluster
index 4566dd6bbbc7df726603d87dd3cee7fecfd4280a..f7f0bc3ebeaa97a18434833c2357276c79d21467 100755
--- a/scripts/gnt-cluster
+++ b/scripts/gnt-cluster
@@ -457,7 +457,8 @@ def SetClusterParams(opts, args):
   """
   if not (not opts.lvm_storage or opts.vg_name or
           opts.enabled_hypervisors or opts.hvparams or
-          opts.beparams or opts.candidate_pool_size is not None):
+          opts.beparams or opts.nicparams or
+          opts.candidate_pool_size is not None):
     ToStderr("Please give at least one of the parameters.")
     return 1
 
@@ -480,10 +481,14 @@ def SetClusterParams(opts, args):
   beparams = opts.beparams
   utils.ForceDictType(beparams, constants.BES_PARAMETER_TYPES)
 
+  nicparams = opts.nicparams
+  utils.ForceDictType(nicparams, constants.NICS_PARAMETER_TYPES)
+
   op = opcodes.OpSetClusterParams(vg_name=vg_name,
                                   enabled_hypervisors=hvlist,
                                   hvparams=hvparams,
                                   beparams=beparams,
+                                  nicparams=nicparams,
                                   candidate_pool_size=opts.candidate_pool_size)
   SubmitOpCode(op)
   return 0
@@ -667,6 +672,9 @@ commands = {
               keyval_option("-B", "--backend-parameters", dest="beparams",
                             type="keyval", default={},
                             help="Backend parameters"),
+              keyval_option("-N", "--nic-parameters", dest="nicparams",
+                            type="keyval", default={},
+                            help="NIC parameters"),
               make_option("-C", "--candidate-pool-size", default=None,
                           help="Set the candidate pool size",
                           dest="candidate_pool_size", type="int"),