[VOL-1349] EPON OLT adapter (package B)

Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/internal/pkg/core/l2oam/msg_after_keep_alive.go b/internal/pkg/core/l2oam/msg_after_keep_alive.go
new file mode 100644
index 0000000..4772e11
--- /dev/null
+++ b/internal/pkg/core/l2oam/msg_after_keep_alive.go
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+
+ * 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.
+ */
+ 
+package l2oam
+
+import (
+	"encoding/binary"
+
+	"github.com/google/gopacket"
+)
+
+func GeneratePcscompuTibitcom() gopacket.SerializableLayer {
+
+	data := &TibitFrame{
+		Data: []byte{0x03, 0x00, 0x50, 0xfe, 0x2a, 0xea, 0x15, 0x01, 0x0c, 0x0c, 0x7a, 0x04, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x11, 0x04, 0x00, 0x00, 0x00, 0x02, 0x01, 0x00, 0x07, 0x00, 0x00},
+	}
+
+	binary.BigEndian.PutUint32(data.Data[12:16], getOltInstance())
+
+	return data
+
+}