diff --git a/openbsc/src/gprs_llc.c b/openbsc/src/gprs_llc.c
index fdaa7b3..6d15636 100644
--- a/openbsc/src/gprs_llc.c
+++ b/openbsc/src/gprs_llc.c
@@ -452,6 +452,8 @@
 	struct gprs_llc_entity *lle;
 	int rc = 0;
 
+	/* Identifiers from DOWN: NSEI, BVCI, TLLI */
+
 	rc = gprs_llc_hdr_parse(&llhp, lh, TLVP_LEN(tv, BSSGP_IE_LLC_PDU));
 	/* FIXME */