Tag: ethernet

76 When to choose fiber instead of twisted pair (copper) 2013-05-08T06:55:11.447

69 Why and how are Ethernet Vlans tagged? 2014-02-25T09:07:51.200

47 Does having a longer Ethernet cable slow your connection? 2016-08-17T11:19:30.663

42 How can I diagnose a bridging (ethernet) loop? 2013-05-15T10:19:22.387

37 Why was the MTU size for ethernet frames calculated as 1500 bytes? 2013-08-24T16:14:32.097

35 Why are Ethernet Standards written in the form of 10/100/1000? Why not just 1000? 2016-02-24T02:52:26.487

32 Using SNMP to retrieve the ARP and mac-address tables from a switch 2013-08-21T07:55:46.070

32 How does gratuitous ARP work? 2014-05-02T06:00:20.827

28 What is the actual size of an Ethernet MTU 2013-11-19T19:41:23.360

27 Why do we still use Ethernet? 2013-09-07T02:41:30.440

24 Why is 4096 the max value for VLANs 2013-10-04T14:16:03.507

23 Emulate Ethernet frame loss for testing purposes 2013-05-09T13:11:17.917

19 Introductory level explanation of VLANs 2013-05-21T13:47:18.223

19 Jumbo Ethernet Frame Deployment 2013-05-30T01:31:06.797

17 MAC address recycling? 2013-05-21T16:14:00.997

17 Minimum Ethernet Cable Length? 2014-04-20T20:22:36.913

16 Are there any reasons to not use BFD? 2013-05-20T08:14:03.607

16 class-default matches control traffic? 2013-09-05T21:02:38.123

16 Why use IP if we already have a MAC address? 2014-06-24T21:04:45.383

16 How does a switch learn a switch table? 2014-11-14T10:29:53.900

16 Why would a switch be connected to a router using three ethernet cables? 2017-03-14T09:23:40.697

15 How is the root bridge elected in STP? 2013-05-08T11:07:04.530

15 Ethernet autonegotiation differences between (10M | 100M | 1G) Ethernet 2013-08-18T19:41:45.957

15 What's the difference between an Ethernet cable and a UTP cable? 2014-09-08T21:12:10.593

14 What happens when 2 computers transmits at the same time to a 3rd one in a full duplex switch? 2013-06-04T15:16:26.127

14 Reason for half-duplex mode in Ethernet? 2015-07-13T20:26:59.137

13 Configure Cisco ASA in Transparent mode: Layer2 DMZ w/ Vlan translation 2013-07-09T04:01:10.643

13 MTU and Fragmentation 2013-10-08T03:21:09.320

13 How are IP addresses mapped to MAC addresses? 2014-06-26T09:52:12.810

13 Troubleshooting low Metro Ethernet TCP throughput 2014-07-29T17:34:03.963

13 Why is the CAM table in a switch called CAM table and not MAC table even though it holds MAC addresses? 2017-08-30T13:54:19.627

12 Accurate strategy for measuring point-to-point link performance? 2013-05-29T19:18:57.477

12 Do faster segments of a network mean faster flow rate or lower latency? 2013-06-01T05:40:27.673

12 Detecting different Ethernet frames 2013-11-04T14:09:45.833

12 10GBase-T vs. SFP+ Direct Attach 2014-01-31T02:39:01.267

12 Switchport in half duplex - Download speed suffering but upload was fine 2014-02-01T12:21:27.247

12 Is the MTU of Ethernet still 1500 Bytes? 2018-07-16T11:34:54.427

11 Extend MACSec encryption over provider bridge 2013-07-05T12:02:03.650

11 Tracing TCN Messages in STP 2013-07-10T07:21:35.393

11 Why can't we find Ethernet checksum in Wireshark? 2013-11-29T04:56:03.233

10 speed/duplex mismatch 2013-05-21T13:56:39.760

10 Ultra-Fast Querying Using UDP Packets 2013-07-05T22:20:15.573

10 On which layer of the OSI Model does the arp protocol belong? 2013-11-20T14:16:29.507

10 Technical difference between a Collision and Broadcast Domain 2014-04-02T12:33:33.963

10 Why is adapter ARPing something it already knows? 2014-08-13T22:36:37.623

10 What can cause "FastEthernet is up, line protocol is down" on a Cisco Switch? 2015-02-12T09:31:41.613

10 Does the source MAC address of a frame change when it passes through several switches? 2016-03-01T19:12:24.583

10 What's the point of auto-sensing 10/100 Mbit/s Ethernet? 2016-06-09T00:18:29.347

10 What does the naming convention for ethernet standards mean: 1000BASE-T , BASE-TX, BASE-SX, etc.? What is the meaning of the components of the name? 2017-08-29T15:21:55.293

9 AP3602 with rcvk9w8 image throws "%CDP_PD-2-POWER_LOW: All radios disabled" 2013-10-08T16:22:44.657

9 Extra long ethernet, or similar technology, for kite 2013-11-22T17:18:17.420

9 What is the difference between Ethernet II and 802.3 Ethernet? 2013-12-03T13:16:30.377

9 Shielded Twisted Pair (STP) termination and grounding 2014-03-12T08:42:20.917

9 Multi-drop Cat5e/6 Cable? 2014-04-22T12:55:18.833

9 Why one of the pairs on Ethernet is not adjacent? 2014-12-05T18:38:24.520

9 Raw-Ethernet Frames 2015-12-17T19:14:56.900

9 Can a switch that does not support VLAN process traffic from a Trunk that is not the native VLAN 2017-11-19T13:47:56.543

8 TDMoE and QoS considerations 2013-05-09T06:00:01.193

8 Why don't switches rewrite mac-addresses? 2013-12-06T06:11:07.187

8 If two NICs are bonded and connected to different switches how does a router decide which switch to forward the packets to? 2014-06-23T14:49:09.093

8 Assign an IP address based on switch port 2015-01-09T21:15:33.547

8 1000Base-T Ethernet limited to 100 m, why? 2015-05-17T13:27:19.650

8 MTU vs MSS? When to change MTU and when to change MSS? 2015-09-28T21:14:37.383

8 Is ethernet a term describing just the protocol or the interfaces also? 2016-01-28T19:28:09.407

7 Why does 1000BASE-T need Auto-MDIX? 2013-05-21T10:31:48.277

7 ISIS p2p on Ethernet media 2013-07-02T14:59:03.240

7 How do I set up a VLAN between an ESXi VM and Physical Hardware? 2013-07-11T18:39:03.863

7 Is 'switchport protected' supposed to block unicast flooding? 2013-08-18T05:17:45.973

7 Something is filling my force10 ARP table 2013-09-16T16:49:43.830

7 Is ADSL's UDP packet forwarding rate strictly linear to packet size? 2013-10-11T05:17:23.567

7 Load Balance NIC, Switch and Router (Redundancy) 2015-10-21T13:01:36.257

7 ARP Questions (Packet Types, Ethernet, Cache, Gratuitous) 2016-01-15T12:03:33.957

7 Upgrading our Network to Managed Switch with Internet Routing 2016-09-20T13:15:19.843

7 What should a device do with an Ethernet frame larger than its MTU? 2017-02-04T14:25:41.303

7 Can Ethernet frames only be transmitted in a LAN? 2018-01-23T09:31:16.440

7 Do network adapters read incoming bits in a single stream? 2018-10-17T16:50:07.060

7 Run MACsec and VLAN in parallel? 2018-11-08T13:37:11.227

6 How sensitive is TDMoE to BER? 2013-05-09T05:45:21.210

6 Monitoring best practice for thresholding errors on an interface? 2013-05-27T05:54:08.580

6 Position of source and destination IP in an IP packet 2013-08-28T18:19:15.587

6 Mixing Cisco STP Features: BPDU Guard, BPDU Filter, PortFast and PortFast Trunk 2013-11-24T13:44:37.820

6 ARP Replies can they be Broadcast 2014-04-01T08:11:16.870

6 Will hosts do IP Fragmentation? 2014-04-07T16:07:37.003

6 How is IEEE 802.1ad (aka VLAN Tagging, QinQ) valid, when the packets are too large? 2014-04-08T02:01:48.557

6 Why are ethernet / mac -addresses in hex and ip numbers in decimals? 2014-09-23T14:42:31.090

6 What purpose is the Uplink port in layman's terms and do I need it? 2015-10-02T06:41:54.147

6 Network Byte Order 2015-11-10T12:01:06.520

6 Spoofing Ethernet with Source as Broadcast 2016-02-14T11:56:00.277

6 CAT7 Ethernet cable: order of wires in the clamp 2016-02-24T14:23:13.220

6 Will using phone lines (RJ-11) in place of ethernet (RJ-45), in this case, be detrimental to performance? 2016-03-21T22:21:39.567

6 What is the purpose of an Ethernet magnetic transformer, and how are they used? 2016-04-25T07:00:20.417

6 How does a layer-2 switch work with UDP? 2016-06-13T16:22:01.900

6 Why do I need a crossover cable to connect devices of the same type? 2016-08-28T09:36:15.010

6 Physical layer errors in Ethernet 2017-02-20T20:51:41.780

6 Can normal CAT6 be buried? 2017-05-13T16:48:37.710

6 Cables on a closed rack 2017-10-18T19:23:26.270

6 Why preamble is not considered a part of the Ethernet Header? 2017-11-09T01:07:47.800

6 Why is the Ethernet Connection Symmetric? 2018-07-20T18:39:33.883

6 How can a TCP window size be allowed to be larger than the maximum size of an ethernet packet? 2018-10-21T13:56:42.783