http://www.telecom-gear.com/comp.dcom.lans.ethernet-newsgroup10-1.htm Ethernet Hardware and Protocol News and Discussions en-us Thu, 02 Jul 2009 21:06:01 -0400 info@telecom-gear.com http://www.telecom-gear.com/ http://blogs.law.harvard.edu/tech/rss/ http://www.telecom-gear.com/MTU-for-cable-modem-connection-to-shaw-ca-article7074--10.htm The interface to my cable modem connection to shaw.ca here on Pender Island has MTU 576 whereas I would have expected to find MTU 1500. joule:/home ..... The post has 13 replies so far. Read more and discuss here Sun, 28 Jun 2009 13:53:47 -0400 http://www.telecom-gear.com/Why-4-pairs-in-100Base-T-article7065--10.htm Connections between desktop computers and hubs/routers customarily us RJ45 copnnectors and cat5 cable carrying 4 twisted pairs. But, AIUI, only 2 of ..... The post has 7 replies so far. Read more and discuss here Thu, 04 Jun 2009 10:32:46 -0400 http://www.telecom-gear.com/IGMP-fast-leave-article7062--10.htm Hello, trying to understand how quotfastleavequot works I do realize its related to IGMP Leave messages and how they are processed by IGMP aware swit ..... The post has 2 replies so far. Read more and discuss here Fri, 29 May 2009 03:28:33 -0400 http://www.telecom-gear.com/networking-middleware-article7052--10.htm Hello there are a few companies out there (for example, quotIPinfusionquot and its ZebOS platform) delivering , as they call it, networking middlew ..The post does not have any replies yet. Read more and discuss here Tue, 26 May 2009 02:05:16 -0400 http://www.telecom-gear.com/Newsgroup-article7031--10.htm Is it me, or has this newsgroup gone dormant I have seen (almost) nothing but spam for weeks. Perhaps Usenet itself is nearing the end of its useful ..... The post has 23 replies so far. Read more and discuss here Tue, 19 May 2009 11:45:15 -0400 http://www.telecom-gear.com/multicast-address-article7028--10.htm Hello studying multicasting and IGMP specifically, and have a few points I dont clearly understand. First of all why do we need Ethernet multicast ..... The post has 2 replies so far. Read more and discuss here Tue, 12 May 2009 05:14:43 -0400 http://www.telecom-gear.com/STP-cost-article7025--10.htm Sir, Can you pl tell me the formula for calculating STP cost How cost of 19 is arrived for 100Mbps interface amp 4 is arrived for 1Gbps interface ... The post has 2 replies so far. Read more and discuss here Fri, 01 May 2009 05:15:01 -0400 http://www.telecom-gear.com/INVITE-New-LinkedIn-group-Connected-Home-Networking-article7021--10.htm INVITE: New LinkedIn group quotConnected Home Networkingquot for professionals working with, Wireless, Fiber, Structured Cablings systems, Audio, Vide ..The post does not have any replies yet. Read more and discuss here Thu, 16 Apr 2009 11:50:38 -0400 http://www.telecom-gear.com/rate-limits-article7016--10.htm Hello many L2 (and likely L3+) switches have such a feature as rate limiting. It seems such feature is applied per port basis, as well as per connec ..... The post has 3 replies so far. Read more and discuss here Tue, 07 Apr 2009 20:45:15 -0400 http://www.telecom-gear.com/confused-about-PHY-and-transeiver-article7006--10.htm Hello Im confused about definitions of PHY and Ethernet transeiver. They aint the same, as I assume. Transeiver as I understand, is rather a sort of ..... The post has 5 replies so far. Read more and discuss here Thu, 02 Apr 2009 20:37:00 -0400 http://www.telecom-gear.com/Root-access-on-a-solaris-10-system-connected-via-cable-inter-article6997--10.htm Hi, Comfort and peace, I wish you. Here is a free access....(this may help you test/learn stuff about ethernet, this system is actually on a homeplu ..... The post has 1 replies so far. Read more and discuss here Tue, 31 Mar 2009 21:08:27 -0400 http://www.telecom-gear.com/L2-switch-s-behavior-article6993--10.htm Hello I wonder is it a normal switchs behavior, when it, being connected to a LAN, but not transmitting/receiving any traffic, starts learning proce ..... The post has 12 replies so far. Read more and discuss here Mon, 30 Mar 2009 22:48:43 -0400 http://www.telecom-gear.com/Can-a-boot-ROM-redefine-a-MAC-address-article6981--10.htm Howdy, For diagnostic purposes I would like to install a board with a preconfigured MAC address. I know that most drivers permit changing the MAC fr ..... The post has 1 replies so far. Read more and discuss here Fri, 06 Mar 2009 19:17:03 -0500 http://www.telecom-gear.com/LAN-type-article6978--10.htm Hi all, Recently a friend of mine asked me,on seeing a LAN,how to find its type, the only answer i could give her was , on seeing the cabling us ..... The post has 2 replies so far. Read more and discuss here Thu, 05 Mar 2009 20:35:42 -0500 http://www.telecom-gear.com/Daisy-Chain-Multiple-Ethernet-Devices-article6970--10.htm Sorry if this is a goofy question, but Id like to hook up multiple devices (a PS3 and an Apple TV) to my Ethernet network, but both only have one Ethe ..... The post has 8 replies so far. Read more and discuss here Tue, 03 Mar 2009 16:11:13 -0500 http://www.telecom-gear.com/WANTED-TO-BUY-CISCO-BROCADE-EXTREME-NORTEL-LUCENT-FO-article6969--10.htm WANTED TO BUY : CISCO, BROCADE, EXTREME, NORTEL, LUCENT, FOUNDRY, MICROSOFT, ADOBE AND LOTS MORE.. PLEASE TAKE A LOOK BELOW AT MY WANT TO BUY LISTI ..The post does not have any replies yet. Read more and discuss here Sun, 01 Mar 2009 19:05:53 -0500 http://www.telecom-gear.com/Ethernet-switch-flooding-packets-article6954--10.htm Hi All, I did a WireShark packet trace this evening on the network. I was surprised to see quite a few packets that werent meant for me. Naturally ..... The post has 11 replies so far. Read more and discuss here Wed, 11 Feb 2009 16:06:07 -0500 http://www.telecom-gear.com/Wifi-access-point-router-for-business-article6946--10.htm Hello. At work we have alot of consumer wifi AP and routers (acting as APs) and they work rather poor. I have finally got through with my statement t ..... The post has 10 replies so far. Read more and discuss here Fri, 06 Feb 2009 07:38:14 -0500 http://www.telecom-gear.com/Re-NIC-question-troubleshooting-article6940--10.htm xposted to some other useful groups quotGeorgequot ltgeorge@nospam.invalidgt wrote in message news:glv10h3nr1@news.motzarella.org... igt Jeff Liebe ..The post does not have any replies yet. Read more and discuss here Fri, 30 Jan 2009 11:09:39 -0500 http://www.telecom-gear.com/Telecom-Inventory-article6939--10.htm TelExpress has a huge inventory available for sale. TelExpress, Inc. has 3 distribution warehouses and has been in business for over 16 years. We al ..The post does not have any replies yet. Read more and discuss here Tue, 18 Nov 2008 12:42:00 -0500 http://www.telecom-gear.com/802-3-Length-interpretation-and-payload-type-article6926--10.htm Hi all, Ive just noticed that IEEE 802.32005 does not explicitly tell what MAC client data is when the Length/Type field contains a length value. It ..... The post has 6 replies so far. Read more and discuss here Thu, 06 Nov 2008 10:18:19 -0500 http://www.telecom-gear.com/Multiple-aggregated-links-between-devices-impossible-article6924--10.htm Hello, According to The AllNew Switch Book, only a single 802.3ad aggregated link is possible between a pair of devices. * Can someone please shed l ..... The post has 7 replies so far. Read more and discuss here Mon, 03 Nov 2008 11:35:37 -0500 http://www.telecom-gear.com/The-RaRa-Economic-Bailout-Package-telecom-equipment-for-sal-article6922--10.htm Many of our customers depend on RaRa Telecom Supply for their critical last minute and hardtofind parts or for our custom fiber and copper cables, but ..The post does not have any replies yet. Read more and discuss here Tue, 28 Oct 2008 11:59:30 -0400 http://www.telecom-gear.com/Re-Literature-on-100Base-TX-request-article6872--10.htm On Oct 19, 3:19A0am, Muzaffer Kal ltk...@dspia.comgt wrote: igt On Sat, 18 Oct 2008 13:33:33 0700 (PDT), Fred/i igt/i igt ltfredblo...@lycos.comgt wro ..... The post has 2 replies so far. Read more and discuss here Tue, 21 Oct 2008 19:23:00 -0400 http://www.telecom-gear.com/port-based-vlan-and-tag-based-vlan-article6870--10.htm What is difference between them What i understand is 1. portbased vlan is old (before intrduce 802.3q) currently on the market every switch is tagbase ..The post does not have any replies yet. Read more and discuss here Tue, 21 Oct 2008 14:03:31 -0400 http://www.telecom-gear.com/port-based-vlan-and-tag-based-vlan-article6869--10.htm What is difference between them What i understand is 1. portbased vlan is old (before intrduce 802.3q) currently on the market every switch is tagbase ..... The post has 13 replies so far. Read more and discuss here Tue, 21 Oct 2008 14:03:24 -0400 http://www.telecom-gear.com/star-coax-network-with-rj-adapters-article6864--10.htm Hello, Two years ago, I bought a house that already had coaxial plates installed on almost each rooms. Each plate uses a single wire (no T conectors ..... The post has 9 replies so far. Read more and discuss here Sun, 19 Oct 2008 17:42:00 -0400 http://www.telecom-gear.com/STP-RSTP-query-article6854--10.htm Hi I have a couple of queries on the implementation of STP and RSTP. 1. How different is the behavior of RSTP in a shared LAN In a scenario where th ..The post does not have any replies yet. Read more and discuss here Thu, 16 Oct 2008 03:29:05 -0400 http://www.telecom-gear.com/testing-am79c793-phy-article6852--10.htm Hello, I need your help. I want to test my ethernet 100base phy, Im using a LeCroy load board connected to oscilloscope. My problem is how to set dtu ..The post does not have any replies yet. Read more and discuss here Wed, 15 Oct 2008 05:09:41 -0400 http://www.telecom-gear.com/VGA-over-CAT5e-article6826--10.htm Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but ..... The post has 22 replies so far. Read more and discuss here Mon, 06 Oct 2008 00:05:00 -0400 http://www.telecom-gear.com/Ethernet-Performance-Testing-and-throughput-article6819--10.htm Hi, can someone please give some background on ethernet performance testing and throughput measurement applications like netperf, ttcp and if there ..... The post has 7 replies so far. Read more and discuss here Fri, 03 Oct 2008 16:28:03 -0400 http://www.telecom-gear.com/mac-and-proto-vlan-classifiers-article6797--10.htm hi, can protocol classifier and mac classifier be applied on trunk ports thanks The post does not have any replies yet. Read more and discuss here Thu, 02 Oct 2008 02:56:03 -0400 http://www.telecom-gear.com/Hackable-GbE-Controller-article6796--10.htm Hello, I was just wondering if there are any GbE controllers out there that do enough of their processing in the driver (or have sufficient control ..... The post has 5 replies so far. Read more and discuss here Thu, 02 Oct 2008 01:58:51 -0400 http://www.telecom-gear.com/FDDI-to-Fast-Ethernet-Bridge-article6793--10.htm (Originally posted in comp.dcom.lans.fddi) Hi there. I currently have a Synoptics FDDI workgroup concentrator, and I use a server as a FDDItoEthern ..... The post has 11 replies so far. Read more and discuss here Wed, 01 Oct 2008 23:42:50 -0400 http://www.telecom-gear.com/FDDI-to-Fast-Ethernet-Bridge-Available-article6792--10.htm (Originally posted in comp.dcom.lans.fddi) Hi there. I currently have a Synoptics FDDI workgroup concentrator, and I use a server as a FDDItoEthern ..... The post has 6 replies so far. Read more and discuss here Wed, 01 Oct 2008 23:38:19 -0400 http://www.telecom-gear.com/mac-vlan-article6788--10.htm if a mac classification is done for a mac address. The host with that mac address cannot be part of anyother vlans p1 m1v1,v2 p2 p3 ..... The post has 1 replies so far. Read more and discuss here Mon, 29 Sep 2008 10:14:44 -0400 http://www.telecom-gear.com/should-request-to-192-168-x-x-get-out-of-my-router-to-the-WA-article6781--10.htm If I type http://192.168.1.1 in my browser and the LAN has no such host, should the router forward this request out to the WAN My home network: i ..... The post has 9 replies so far. Read more and discuss here Sat, 27 Sep 2008 14:14:09 -0400 http://www.telecom-gear.com/Problem-with-PAUSE-frames-ethernet-flow-control-article6773--10.htm I am working with PAUSE frames and I have some problems : Im working in a Project with Pause Frames and I have a problem .My really problem is tha ..... The post has 3 replies so far. Read more and discuss here Thu, 25 Sep 2008 07:09:51 -0400 http://www.telecom-gear.com/VNSwitch-900CG-Installation-and-Configuration-Manual-DECH-article6770--10.htm Hi there. I am trying to locate a DEC/Compaq/Cabletron VNSwitch 900CG Fast Ethernet/Gigabit Module Installation and Configuration Manual. This modul ..The post does not have any replies yet. Read more and discuss here Tue, 23 Sep 2008 22:05:43 -0400 http://www.telecom-gear.com/10BaseT-links-with-100BaseT-article6768--10.htm I have an issue where a 10 Mbps system (non autonegotiation) links with another port on 100 Mbps port which is also non negotiatited/ forced. Is thi ..... The post has 3 replies so far. Read more and discuss here Tue, 23 Sep 2008 18:20:14 -0400 http://www.telecom-gear.com/I-am-BUYING-Cisco-Lucent-Nortel-Microsoft-more-I-also-article6767--10.htm I am BUYING Cisco, Lucent, Nortel, Microsoft amp more. I also buy Extreme, Foundry, Brocade and more. If it is not on the list doesnt mean that I ..... The post has 1 replies so far. Read more and discuss here Mon, 22 Sep 2008 21:29:57 -0400 http://www.telecom-gear.com/MSTP-MIB-article6766--10.htm Is there an MSTP MIB Ive looked all over and the best I can find is some mailing list activity in 2005 that says one is needed but nothing current ..... The post has 1 replies so far. Read more and discuss here Mon, 22 Sep 2008 09:59:52 -0400 http://www.telecom-gear.com/prio-tagged-frames-towards-a-station-article6764--10.htm Folks, maybe someone can share insight with me as 802.1Q left me not much wiser... I *do* understand (I think) about *sending* prioritytagged into ..... The post has 6 replies so far. Read more and discuss here Fri, 19 Sep 2008 14:45:32 -0400 http://www.telecom-gear.com/How-to-test-network-in-windows-article6763--10.htm What tools should I use and where to get them ... The post has 1 replies so far. Read more and discuss here Fri, 19 Sep 2008 02:15:14 -0400 http://www.telecom-gear.com/Internet-works-but-computers-don-t-see-each-other-MSHOME-article6760--10.htm Hi, I have a problem with Sharing documents, and printers in a LAN (all comps Win XP home) network I am responsible for. It is a nice 32port 1GBit s ..... The post has 1 replies so far. Read more and discuss here Thu, 18 Sep 2008 05:11:30 -0400 http://www.telecom-gear.com/vlan-and-interface-article6755--10.htm ive read an understood basics of vlan Ive a very basic doubt on this. can i view vlan as a logical interface, because ive seen some switches which p ..... The post has 3 replies so far. Read more and discuss here Wed, 10 Sep 2008 01:22:19 -0400 http://www.telecom-gear.com/Shortest-ethernet-frame-time-5-76uS-article6739--10.htm Could someone check my calculations Im looking for the shortest time an Ethernet frame will occupy the wire. I make it about 5uS on 100Mbit as follo ..... The post has 17 replies so far. Read more and discuss here Tue, 09 Sep 2008 16:55:22 -0400 http://www.telecom-gear.com/RMII-MII-Help-Please-article6732--10.htm Note: I also posted this to c.a.embedded. Im not sure it belongs here, but no answers there so far... In putting together a little control nodule w ..... The post has 1 replies so far. Read more and discuss here Tue, 02 Sep 2008 22:22:27 -0400 http://www.telecom-gear.com/Sharing-a-switch-port-article6727--10.htm we have 20 new PCs being setup in a conference room. We have only 5 jacks in the room wired to our ethernet switch in the wiring closet. The powers ..... The post has 6 replies so far. Read more and discuss here Sat, 30 Aug 2008 15:17:23 -0400 http://www.telecom-gear.com/Theory-behind-31-25-MHz-in-100BASE-TX-article6716--10.htm Hi there, 100BASETX is said by a number of authors to have its fundamental frequency at 31.25 MHz, but the proofs given (if any) seem vague or ques ..... The post has 10 replies so far. Read more and discuss here Thu, 21 Aug 2008 14:24:51 -0400