143:
1761:
1773:
134:, so the length of the frame does not always need to be encoded as a value in the Ethernet frame. However, as the minimum payload of an Ethernet frame is 46 bytes, a protocol that uses EtherType must include its own length field if that is necessary for the recipient of the frame to determine the length of short packets (if allowed) for that protocol.
181:, typically ~9000 Bytes long, collides with the range used by EtherType, and cannot be used for indicating the length of such a frame. The proposition to resolve this conflict was to substitute the special EtherType value 0x8870 when a length would otherwise be used. However, the proposition (its use case was bigger packets for
185:) was not accepted and it is defunct. The chair of IEEE 802.3 at the time, Geoff Thompson, responded to the draft outlining IEEE 802.3's official position and the reasons behind the position. The draft authors also responded to the chair's letter, but no subsequent answer from the IEEE 802.3 has been recorded.
101:
In modern implementations of
Ethernet, the field within the Ethernet frame used to describe the EtherType can also be used to represent the size of the payload of the Ethernet Frame. Historically, depending on the type of Ethernet framing that was in use on an Ethernet segment, both interpretations
118:
numeral system. Thus, values of 1500 and below for this field indicate that the field is used as the size of the payload of the
Ethernet frame while values of 1536 and above indicate that the field is used to represent an EtherType. The interpretation of values 1501–1535, inclusive, is undefined.
94:
109:
In order to allow
Ethernet II and IEEE 802.3 framing to be used on the same Ethernet segment, a unifying standard, IEEE 802.3x-1997, was introduced that required that EtherType values be greater than or equal to 1536. That value was chosen because the maximum length
161:
uses an 0x8100 EtherType value. The payload following includes a 16-bit tag control identifier (TCI) followed by an
Ethernet frame beginning with a second (original) EtherType field for consumption by
211:
header is used to transmit the EtherType of a payload for IEEE 802 networks other than
Ethernet, as well as for non-IEEE networks that use the IEEE 802.2 LLC header, such as
1547:
106:
considered these octets to represent EtherType while the original IEEE 802.3 framing considered these octets to represent the size of the payload in bytes.
227:
has a separate list of some EtherType registrations, compiled from several sources, including the IEEE Registration
Authority's list and some other lists.
1095:
150:(four octets) into an Ethernet-II frame, with a typical VLAN arrangement of a tag protocol identifier (TPID) EtherType value of 0x8100. A
188:
While defunct, this draft was implemented and is used in Cisco routers in their IS-IS implementation (for IIH Hello packets padding).
488:
998:
1741:
1175:
1297:
985:
1736:
1179:
1124:
391:
224:
1368:
97:
An
Ethernet frame including the EtherType field. Each lower slot designates an octet; the EtherType is two octets long.
551:
55:
to determine how the payload is processed. The same field is also used to indicate the size of some
Ethernet frames.
1226:"LAN Technical Reference: IEEE 802.2 and NetBIOS Application Program Interfaces. IBM Document Number SC30-3587-01"
1587:
1080:
475:
350:
1242:
899:
781:
376:
347:
114:) of the data field of an Ethernet 802.3 frame is 1500 bytes and 1536 is equivalent to the number 600 in the
946:
883:
462:
427:
1731:
1681:
1676:
920:
903:
525:
310:
273:
260:
82:
154:
arrangement would add another four-octet tag containing a two-octet TPID using various EtherType values.
1726:
1524:
1514:
1026:
201:
63:
48:
223:
EtherTypes are assigned by the IEEE Registration
Authority, which publishes them in list format. The
1777:
1716:
1638:
1346:
1011:
818:
743:
111:
17:
1103:
322:
1055:
298:
1341:
1700:
1447:
1411:
858:
131:
44:
1582:
1361:
1072:
1462:
538:
1336:
1279:
513:
1658:
1633:
1426:
1126:
Use of the IEEE Assigned
Ethertype with IEEE Std 802.3 Local and Metropolitan Area Networks
379:
208:
123:
8:
1653:
1643:
1623:
1618:
1602:
1509:
1421:
1416:
1316:
The Ethernet, A Local Area Network Data Link and Physical Layer Specification Version 2.0
1256:
158:
103:
74:
59:
1519:
1381:
717:
420:
806:
1799:
1765:
1493:
1354:
1314:
1293:
1236:
680:
36:
1225:
1628:
1431:
1406:
1396:
1285:
768:
1148:
1695:
1452:
1289:
147:
52:
27:
Field in Ethernet frames indicating which protocol is encapsulated in the payload
66:
packets from VLANs for transmission multiplexed with other VLAN traffic over an
1690:
1648:
1467:
67:
40:
1793:
1401:
896:
845:
831:
705:
458:
166:
1668:
1472:
641:
454:
286:
244:
178:
162:
142:
115:
1721:
1488:
1200:
959:
794:
417:
205:
78:
1376:
126:
followed by loss of carrier or by a special symbol or sequence in the
1597:
1592:
1567:
1562:
1557:
972:
756:
667:
440:
404:
127:
51:
in the payload of the frame and is used at the receiving end by the
1529:
1377:
692:
654:
628:
564:
197:
169:
extends this tagging with further nested EtherType and TCI pairs.
1577:
1572:
1552:
907:
93:
1686:
363:
1012:
IEEE 802.1CB Frame Replication and Elimination for Reliability
871:
729:
615:
602:
335:
182:
215:. However, for Ethernet, Ethernet II framing is still used.
102:
were simultaneously valid, leading to potential ambiguity.
1746:
1152:
933:
589:
576:
212:
151:
501:
424:
706:
Service VLAN tag identifier (S-Tag) on Q-in-Q tunnel
1257:"Configuration - Shortest Path Bridging MAC (SPBM)"
430:), preceded by 2 bytes length and 1 byte padding
1791:
1060:. November 2001. I-D draft-ietf-isis-ext-eth-01.
81:standard. EtherType values are assigned by the
1313:"8. Ethernet Configuration Testing Protocol".
1362:
236:EtherType values for some notable protocols
732:(Generic Object Oriented Substation event)
1369:
1355:
1170:
1168:
122:The end of a frame is signaled by a valid
1096:"Fwd: Re: ISIS in SCAPY and Jumbo frames"
489:Virtual Link Aggregation Control Protocol
1093:
177:The size of the payload of non-standard
141:
92:
1165:
1141:
999:Ethernet Configuration Testing Protocol
58:EtherType is also used as the basis of
14:
1792:
1073:"Extended Ethernet Frame Size Support"
1070:
191:
1350:
1342:IEEE EtherType Registration Authority
1337:IEEE Registration Authority Tutorials
1249:
1231:(2nd ed.). sections 1.16-1.16.1.
986:High-availability Seamless Redundancy
1772:
1064:
1057:Extended Ethernet Frame Size Support
550:Ethernet Slow Protocols such as the
1223:
1180:Internet Assigned Numbers Authority
443:Address Resolution Protocol (AARP)
392:Reverse Address Resolution Protocol
225:Internet Assigned Numbers Authority
77:standard and later adapted for the
73:EtherType was first defined by the
24:
1432:200, 400, 800 and 1600 Gbit/s
1071:Kaplan; et al. (2000-05-26).
25:
1811:
1330:
844:Provider Backbone Bridges (PBB) (
552:Link Aggregation Control Protocol
1771:
1760:
1759:
43:. It is used to indicate which
1306:
1271:
1094:Patzlaff, Marcel (2015-04-08).
1081:Internet Engineering Task Force
861:(PTP) over IEEE 802.3 Ethernet
757:SV (Sampled Value Transmission)
476:Simple Loop Prevention Protocol
218:
204:(SNAP) header combined with an
172:
137:
1259:. Avaya. June 2012. p. 35
1217:
1193:
1117:
1102:(Mailing list). Archived from
1087:
1048:
1039:
323:Audio Video Transport Protocol
13:
1:
1032:
962:Protocol Control Frame (TTE)
900:Connectivity Fault Management
782:Link Layer Discovery Protocol
457:) and Shortest Path Bridging
1290:10.1109/IEEESTD.2018.8457469
947:RDMA over Converged Ethernet
884:Parallel Redundancy Protocol
7:
1020:
921:Fibre Channel over Ethernet
904:ITU-T Recommendation Y.1731
526:Internet Protocol Version 6
311:Stream Reservation Protocol
274:Address Resolution Protocol
261:Internet Protocol version 4
88:
83:IEEE Registration Authority
10:
1816:
1241:: CS1 maint: url-status (
1045:IEEE Std 802.3-2005, 3.2.6
1027:Port (computer networking)
202:Subnetwork Access Protocol
1755:
1709:
1667:
1611:
1540:
1502:
1481:
1440:
1389:
819:Media Redundancy Protocol
744:Generic Substation Events
230:
1682:SFP/SFP+/QSFP/QSFP+/OSFP
1229:(BOO (IBM Book Manager))
936:Initialization Protocol
299:Cisco Discovery Protocol
1149:"Public EtherType list"
859:Precision Time Protocol
196:With the advent of the
132:Ethernet physical layer
1427:40 and 100 Gbit/s
834:MAC security (MACsec)
746:) Management Services
366:Phase IV, DNA Routing
200:suite of standards, a
155:
98:
1422:25 and 50 Gbit/s
1412:2.5 and 5 Gbit/s
670:(SCSI over Ethernet)
539:Ethernet flow control
145:
96:
124:frame check sequence
1284:. August 31, 2018.
1281:IEEE Std 802.3-2018
453:VLAN-tagged frame (
336:IETF TRILL Protocol
237:
192:Use beyond Ethernet
159:802.1Q VLAN tagging
104:Ethernet II framing
75:Ethernet II framing
60:802.1Q VLAN tagging
1382:local area network
1176:"IEEE 802 Numbers"
807:HomePlug Green PHY
718:Ethernet Powerlink
235:
156:
128:line coding scheme
99:
1787:
1786:
1639:Energy Efficiency
1494:Ethernet Alliance
1299:978-1-5044-5090-4
1018:
1017:
902:(CFM) Protocol /
681:ATA over Ethernet
146:Insertion of the
130:for a particular
16:(Redirected from
1807:
1775:
1774:
1763:
1762:
1371:
1364:
1357:
1348:
1347:
1324:
1323:
1322:. November 1982.
1321:
1310:
1304:
1303:
1275:
1269:
1268:
1266:
1264:
1253:
1247:
1246:
1240:
1232:
1230:
1224:IBM (May 1996).
1221:
1215:
1214:
1212:
1211:
1197:
1191:
1190:
1188:
1187:
1172:
1163:
1162:
1160:
1159:
1145:
1139:
1138:
1137:
1136:
1131:
1121:
1115:
1114:
1112:
1111:
1091:
1085:
1084:
1077:Ietf Datatracker
1068:
1062:
1061:
1052:
1046:
1043:
1010:Redundancy Tag (
1007:
995:
982:
969:
956:
943:
930:
917:
893:
880:
868:
855:
841:
828:
815:
803:
791:
778:
765:
753:
739:
726:
714:
702:
689:
677:
664:
651:
637:
629:HomePlug 1.0 MME
625:
612:
605:Discovery Stage
599:
586:
573:
561:
547:
535:
522:
510:
498:
485:
472:
450:
437:
423:(in particular,
414:
401:
388:
373:
360:
344:
332:
319:
307:
295:
283:
270:
257:
238:
234:
21:
1815:
1814:
1810:
1809:
1808:
1806:
1805:
1804:
1790:
1789:
1788:
1783:
1751:
1705:
1663:
1607:
1536:
1498:
1477:
1453:Autonegotiation
1436:
1402:100 Mbit/s
1385:
1375:
1333:
1328:
1327:
1319:
1312:
1311:
1307:
1300:
1277:
1276:
1272:
1262:
1260:
1255:
1254:
1250:
1234:
1233:
1228:
1222:
1218:
1209:
1207:
1199:
1198:
1194:
1185:
1183:
1174:
1173:
1166:
1157:
1155:
1147:
1146:
1142:
1134:
1132:
1129:
1123:
1122:
1118:
1109:
1107:
1092:
1088:
1069:
1065:
1054:
1053:
1049:
1044:
1040:
1035:
1023:
1005:
993:
980:
967:
954:
941:
928:
915:
891:
878:
866:
853:
839:
826:
813:
801:
789:
776:
763:
751:
737:
724:
712:
700:
687:
675:
662:
649:
635:
623:
610:
597:
584:
571:
559:
545:
533:
520:
508:
496:
483:
470:
448:
435:
412:
399:
386:
371:
358:
342:
330:
317:
305:
293:
281:
268:
255:
242:
233:
221:
194:
175:
148:802.1Q VLAN tag
140:
91:
53:data link layer
28:
23:
22:
15:
12:
11:
5:
1813:
1803:
1802:
1785:
1784:
1782:
1781:
1769:
1756:
1753:
1752:
1750:
1749:
1744:
1739:
1734:
1729:
1724:
1719:
1713:
1711:
1707:
1706:
1704:
1703:
1698:
1693:
1684:
1679:
1673:
1671:
1665:
1664:
1662:
1661:
1656:
1651:
1646:
1641:
1636:
1631:
1626:
1621:
1615:
1613:
1609:
1608:
1606:
1605:
1600:
1595:
1590:
1585:
1580:
1575:
1570:
1565:
1560:
1555:
1550:
1544:
1542:
1538:
1537:
1535:
1534:
1533:
1532:
1522:
1517:
1512:
1506:
1504:
1500:
1499:
1497:
1496:
1491:
1485:
1483:
1479:
1478:
1476:
1475:
1470:
1465:
1460:
1455:
1450:
1448:Physical layer
1444:
1442:
1438:
1437:
1435:
1434:
1429:
1424:
1419:
1417:10 Gbit/s
1414:
1409:
1404:
1399:
1397:10 Mbit/s
1393:
1391:
1387:
1386:
1374:
1373:
1366:
1359:
1351:
1345:
1344:
1339:
1332:
1331:External links
1329:
1326:
1325:
1305:
1298:
1270:
1248:
1216:
1205:Wireshark Wiki
1192:
1164:
1140:
1116:
1086:
1063:
1047:
1037:
1036:
1034:
1031:
1030:
1029:
1022:
1019:
1016:
1015:
1008:
1002:
1001:
996:
990:
989:
983:
977:
976:
975:IEEE Protocol
970:
964:
963:
957:
951:
950:
944:
938:
937:
931:
925:
924:
918:
912:
911:
894:
888:
887:
881:
875:
874:
869:
863:
862:
856:
850:
849:
842:
836:
835:
829:
823:
822:
816:
810:
809:
804:
798:
797:
792:
786:
785:
779:
773:
772:
769:MikroTik RoMON
766:
760:
759:
754:
748:
747:
740:
734:
733:
727:
721:
720:
715:
709:
708:
703:
697:
696:
690:
684:
683:
678:
672:
671:
665:
659:
658:
652:
646:
645:
640:EAP over LAN (
638:
632:
631:
626:
620:
619:
618:Session Stage
613:
607:
606:
600:
594:
593:
587:
581:
580:
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568:
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548:
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523:
517:
516:
511:
505:
504:
499:
493:
492:
486:
480:
479:
473:
467:
466:
465:compatibility
451:
445:
444:
438:
432:
431:
415:
409:
408:
402:
396:
395:
389:
383:
382:
374:
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232:
229:
220:
217:
193:
190:
174:
171:
139:
136:
90:
87:
68:Ethernet trunk
41:Ethernet frame
26:
9:
6:
4:
3:
2:
1812:
1801:
1798:
1797:
1795:
1780:
1779:
1770:
1768:
1767:
1758:
1757:
1754:
1748:
1745:
1743:
1740:
1738:
1735:
1733:
1730:
1728:
1725:
1723:
1720:
1718:
1715:
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1712:
1708:
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1699:
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1692:
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1678:
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1674:
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1666:
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1645:
1642:
1640:
1637:
1635:
1632:
1630:
1627:
1625:
1622:
1620:
1617:
1616:
1614:
1610:
1604:
1601:
1599:
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1594:
1591:
1589:
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1584:
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1571:
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1564:
1561:
1559:
1556:
1554:
1551:
1549:
1546:
1545:
1543:
1539:
1531:
1528:
1527:
1526:
1523:
1521:
1518:
1516:
1513:
1511:
1508:
1507:
1505:
1501:
1495:
1492:
1490:
1487:
1486:
1484:
1482:Organizations
1480:
1474:
1471:
1469:
1466:
1464:
1461:
1459:
1456:
1454:
1451:
1449:
1446:
1445:
1443:
1439:
1433:
1430:
1428:
1425:
1423:
1420:
1418:
1415:
1413:
1410:
1408:
1407:1 Gbit/s
1405:
1403:
1400:
1398:
1395:
1394:
1392:
1388:
1383:
1379:
1372:
1367:
1365:
1360:
1358:
1353:
1352:
1349:
1343:
1340:
1338:
1335:
1334:
1318:
1317:
1309:
1301:
1295:
1291:
1287:
1283:
1282:
1278:"Annex 57A".
1274:
1258:
1252:
1244:
1238:
1227:
1220:
1206:
1202:
1196:
1181:
1177:
1171:
1169:
1154:
1150:
1144:
1128:
1127:
1120:
1106:on 2018-03-31
1105:
1101:
1097:
1090:
1082:
1078:
1074:
1067:
1059:
1058:
1051:
1042:
1038:
1028:
1025:
1024:
1013:
1009:
1004:
1003:
1000:
997:
992:
991:
987:
984:
979:
978:
974:
971:
966:
965:
961:
958:
953:
952:
948:
945:
940:
939:
935:
932:
927:
926:
922:
919:
914:
913:
909:
905:
901:
898:
895:
890:
889:
885:
882:
877:
876:
873:
870:
865:
864:
860:
857:
852:
851:
847:
843:
838:
837:
833:
830:
825:
824:
821:(IEC62439-2)
820:
817:
812:
811:
808:
805:
800:
799:
796:
793:
788:
787:
783:
780:
775:
774:
771:(unofficial)
770:
767:
762:
761:
758:
755:
750:
749:
745:
741:
736:
735:
731:
728:
723:
722:
719:
716:
711:
710:
707:
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698:
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691:
686:
685:
682:
679:
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673:
669:
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621:
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588:
583:
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563:
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543:
540:
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531:
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500:
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477:
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469:
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460:
456:
452:
447:
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1669:Transceivers
1612:Applications
1515:Twisted pair
1463:Flow control
1457:
1384:technologies
1315:
1308:
1280:
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1261:. Retrieved
1251:
1219:
1208:. Retrieved
1204:
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1184:. Retrieved
1182:. 2015-10-06
1156:. Retrieved
1143:
1133:, retrieved
1125:
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1108:. Retrieved
1104:the original
1099:
1089:
1076:
1066:
1056:
1050:
1041:
897:IEEE 802.1ag
846:IEEE 802.1ah
832:IEEE 802.1AE
459:IEEE 802.1aq
407:(EtherTalk)
222:
219:Registration
195:
187:
179:jumbo frames
176:
173:Jumbo frames
167:IEEE 802.1ad
163:end stations
157:
138:VLAN tagging
121:
108:
100:
72:
57:
49:encapsulated
39:field in an
32:
31:
29:
1659:Synchronous
1634:Data center
1201:"WakeOnLAN"
642:IEEE 802.1X
455:IEEE 802.1Q
287:Wake-on-LAN
245:hexadecimal
116:hexadecimal
1710:Interfaces
1644:Industrial
1624:Automotive
1603:Long Reach
1525:First mile
1489:IEEE 802.3
1380:family of
1210:2018-10-16
1186:2016-09-23
1158:2018-09-08
1135:2022-02-03
1110:2017-05-09
1033:References
960:TTEthernet
795:SERCOS III
592:multicast
206:IEEE 802.2
79:IEEE 802.3
1598:LattisNet
1593:100BaseVG
1568:10BASE-FL
1563:10BASE-FB
1558:10BROAD36
1458:EtherType
695:Protocol
668:HyperSCSI
657:Protocol
441:AppleTalk
405:AppleTalk
250:Protocol
241:EtherType
35:is a two-
33:EtherType
18:Ethertype
1800:Ethernet
1794:Category
1766:Category
1541:Historic
1530:10G-EPON
1378:Ethernet
1237:cite web
1100:scapy-ml
1021:See also
693:EtherCAT
655:PROFINET
579:unicast
565:CobraNet
514:QNX Qnet
491:(VLACP)
198:IEEE 802
89:Overview
45:protocol
1778:Commons
1629:Carrier
1578:10BASE2
1573:10BASE5
1553:StarLAN
1548:CSMA/CD
1520:Coaxial
1441:General
1263:23 June
949:(RoCE)
923:(FCoE)
784:(LLDP)
554:(LACP)
528:(IPv6)
478:(SLPP)
394:(RARP)
325:(AVTP)
263:(IPv4)
1687:XENPAK
1473:Jumbos
1468:Frames
1390:Speeds
1296:
1006:0xF1C1
994:0x9000
988:(HSR)
981:0x892F
973:1905.1
968:0x893a
955:0x891D
942:0x8915
929:0x8914
916:0x8906
892:0x8902
886:(PRP)
879:0x88FB
867:0x88F8
854:0x88F7
840:0x88E7
827:0x88E5
814:0x88E3
802:0x88E1
790:0x88CD
777:0x88CC
764:0x88BF
752:0x88BA
738:0x88B9
725:0x88B8
713:0x88AB
701:0x88A8
688:0x88A4
676:0x88A2
663:0x889A
650:0x8892
636:0x888E
624:0x887B
611:0x8864
598:0x8863
585:0x8848
572:0x8847
560:0x8819
546:0x8809
534:0x8808
521:0x86DD
509:0x8204
497:0x8137
484:0x8103
471:0x8102
449:0x8100
436:0x80F3
413:0x80D5
400:0x809B
387:0x8035
372:0x6004
364:DECnet
359:0x6003
343:0x6002
331:0x22F3
318:0x22F0
306:0x22EA
294:0x2000
282:0x0842
276:(ARP)
269:0x0806
256:0x0800
231:Values
1742:XGMII
1654:Power
1649:Metro
1619:Audio
1588:FOIRL
1510:Fiber
1503:Media
1320:(PDF)
1130:(PDF)
872:NC-SI
742:GSE (
730:GOOSE
616:PPPoE
603:PPPoE
461:with
183:IS-IS
37:octet
1747:XAUI
1737:GMII
1677:GBIC
1294:ISBN
1265:2017
1243:link
1153:IEEE
934:FCoE
590:MPLS
577:MPLS
213:FDDI
152:QinQ
1732:MII
1727:MDI
1722:EAD
1717:AUI
1701:CFP
1696:XFP
1583:MAU
1286:doi
908:OAM
502:IPX
463:NNI
428:SNA
425:IBM
421:PDU
418:LLC
380:LAT
377:DEC
353:RC
351:MOP
348:DEC
209:LLC
112:MTU
47:is
1796::
1691:X2
1292:.
1239:}}
1235:{{
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