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diff --git a/resources/libraries/bash/entry/check_l3fwd.sh b/resources/libraries/bash/entry/check_l3fwd.sh
new file mode 100755
index 0000000000..3e53b636a3
--- /dev/null
+++ b/resources/libraries/bash/entry/check_l3fwd.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2022 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Helper functions for starting testpmd.
+
+set -exuo pipefail
+
+# Assumptions:
+# + There is a directory holding CSIT code to use (this script is there).
+# + At least one of the following is true:
+# ++ JOB_NAME environment variable is set,
+# ++ or this entry script has access to arguments.
+# Consequences (and specific assumptions) are multiple,
+# examine tree of functions for current description.
+
+# FIXME: Define API contract (as opposed to just help) for bootstrap.
+
+# "set -eu" handles failures from the following two lines.
+BASH_ENTRY_DIR="$(dirname $(readlink -e "${BASH_SOURCE[0]}"))"
+BASH_FUNCTION_DIR="$(readlink -e "${BASH_ENTRY_DIR}/../function")"
+source "${BASH_FUNCTION_DIR}/common.sh" || {
+    echo "Source failed." >&2
+    exit 1
+}
+source "${BASH_FUNCTION_DIR}/dpdk.sh" || die "Source failed."
+common_dirs || die
+dpdk_l3fwd_check || die