Network DLCI Assignments

Because the Cisco 90i IDSL Channel Unit performs a DLCI translation for Frame Relay traffic both to and from a subscriber, this appendix lists the network DLCI assignments and corresponding subscriber DLCI assignments for every possible slot and port in a 64-slot D4 channel bank digroup.

Determining Network DLCI Assignments Mathematically

Network DLCIs can be derived mathematically using the following equation:

NetworkDLCI = (32*slot) + (8*port) + (SubscriberDLCI - 16)

where slot varies from 1 to 24 and port varies from 0 to 3. Port A on the Cisco 90i corresponds to port 0, port B to 1, port C to 2, and port D to 3.

Using the Network DLCI Assignments Table

The Network DLCI table is arranged by slot and port number. Each Cisco 90i IDSL Channel Unit fits into a slot in the D4 channel bank and has a network DLCI assigned for each subscriber on a port. The ports on a Cisco 90i channel unit are labeled from A to D, corresponding to port numbers
0 to 3 in the chart below.

Table B-1: Network DLCI Assignments Table

Slot	Port		DLCI Assignment at Subscriber
No.	No.		16	17	18	19	20	21	22	23
1	0		32	33	34	35	36	37	38	39
1	1		40	41	42	43	44	45	46	47
1	2		48	49	50	51	52	53	54	55
1	3		56	57	58	59	60	61	62	63
2	0		64	65	66	67	68	69	70	71
2	1		72	73	74	75	76	77	78	79
2	2		80	81	82	83	84	85	86	87
2	3		88	89	90	91	92	93	94	95
3	0		96	97	98	99	100	101	102	103
3	1		104	105	106	107	108	109	110	111
3	2		112	113	114	115	116	117	118	119
3	3		120	121	122	123	124	125	126	127
4	0		128	129	130	131	132	133	134	135
4	1		136	137	138	139	140	141	142	143
4	2		144	145	146	147	148	149	150	151
4	3		152	153	154	155	156	157	158	159
5	0		160	161	162	163	164	165	166	167
5	1		168	169	170	171	172	173	174	175
5	2		176	177	178	179	180	181	182	183
5	3		184	185	186	187	188	189	190	191
6	0		192	193	194	195	196	197	198	199
6	1		200	201	202	203	204	205	206	207
6	2		208	209	210	211	212	213	214	215
6	3		216	217	218	219	220	221	222	223
7	0		224	225	226	227	228	229	230	231
7	1		232	233	234	235	236	237	238	239
7	2		240	241	242	243	244	245	246	247
7	3		248	249	250	251	252	253	254	255
8	0		256	257	258	259	260	261	262	263
8	1		264	265	266	267	268	269	270	271
8	2		272	273	274	275	276	277	278	279
8	3		280	281	282	283	284	285	286	287
9	0		288	289	290	291	292	293	294	295
9	1		296	297	298	299	300	301	302	303
9	2		304	305	306	307	308	309	310	311
9	3		312	313	314	315	316	317	318	319
10	0		320	321	322	323	324	325	326	327
10	1		328	329	330	331	332	333	334	335
10	2		336	337	338	339	340	341	342	343
10	3		344	345	346	347	348	349	350	351
11	0		352	353	354	355	356	357	358	359
11	1		360	361	362	363	364	365	366	367
11	2		368	369	370	371	372	373	374	375
11	3		376	377	378	379	380	381	382	383
12	0		384	385	386	387	388	389	390	391
12	1		392	393	394	395	396	397	398	399
12	2		400	401	402	403	404	405	406	407
12	3		408	409	410	411	412	413	414	415
13	0		416	417	418	419	420	421	422	423
13	1		424	425	426	427	428	429	430	431
13	2		432	433	434	435	436	437	438	439
13	3		440	441	442	443	444	445	446	447
14	0		448	449	450	451	452	453	454	455
14	1		456	457	458	459	460	461	462	463
14	2		464	465	466	467	468	469	470	471
14	3		472	473	474	475	476	477	478	479
15	0		480	481	482	483	484	485	486	487
15	1		488	489	490	491	492	493	494	495
15	2		496	497	498	499	500	501	502	503
15	3		504	505	506	507	508	509	510	511
16	0		512	513	514	515	516	517	518	519
16	1		520	521	522	523	524	525	526	527
16	2		528	529	530	531	532	533	534	535
16	3		536	537	538	539	540	541	542	543
17	0		544	545	546	547	548	549	550	551
17	1		552	553	554	555	556	557	558	559
17	2		560	561	562	563	564	565	566	567
17	3		568	569	570	571	572	573	574	575
18	0		576	577	578	579	580	581	582	583
18	1		584	585	586	587	588	589	590	591
18	2		592	593	594	595	596	597	598	599
18	3		600	601	602	603	604	605	606	607
19	0		608	609	610	611	612	613	614	615
19	1		616	617	618	619	620	621	622	623
19	2		624	625	626	627	628	629	630	631
19	3		632	633	634	635	636	637	638	639
20	0		640	641	642	643	644	645	646	647
20	1		648	649	650	651	652	653	654	655
20	2		656	657	658	659	660	661	662	663
20	3		664	665	666	667	668	669	670	671
21	0		672	673	674	675	676	677	678	679
21	1		680	681	682	683	684	685	686	687
21	2		688	689	690	691	692	693	694	695
21	3		696	697	698	699	700	701	702	703
22	0		704	705	706	707	708	709	710	711
22	1		712	713	714	715	716	717	718	719
22	2		720	721	722	723	724	725	726	727
22	3		728	729	730	731	732	733	734	735
24	0		768	769	770	771	772	773	774	775
23	0		736	737	738	739	740	741	742	743
23	1		744	745	746	747	748	749	750	751
23	2		752	753	754	755	756	757	758	759
23	3		760	761	762	763	764	765	766	767
24	1		776	777	778	779	780	781	782	783
24	2		784	785	786	787	788	789	790	791
24	3		792	793	794	795	796	797	798	799