http://forums.cabling-design.com/comp.dcom.lans.ethernet-newsgroup13-.htm - Ethernet hardware and protocol related discussions en-us Sat, 05 Jul 2008 06:08:10 -0400 info@cabling-design.com http://www.cabling-design.com/ http://blogs.law.harvard.edu/tech/rss/ http://forums.cabling-design.com/VLAN-Aggregation-article7727-13.htm Hello I ve a query related on the topic VLAN Aggregation is in my shared web file folder named as : VLAN Aggregator.txt ...... The post has 3 replies so far. Read more and discuss here ... The post has 3 replies so far. Read more and discuss here ]]> Fri, 04 Jul 2008 08:21:10 -0400 http://forums.cabling-design.com/Multicast-pruning-article7710-13.htm Can any body plz tell me about Multicast Pruning Thanks Vikrant ... The post has 3 replies so far. Read more and discuss here ... The post has 3 replies so far. Read more and discuss here ]]> Wed, 02 Jul 2008 07:24:00 -0400 http://forums.cabling-design.com/default-8021Q-tag-article7707-13.htm Hello what means by saying Default 802.1Q tag thanks Vikrant The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Wed, 02 Jul 2008 04:07:49 -0400 http://forums.cabling-design.com/Zyxel--False-Advertising--Beware-of-this-Compan-article7704-13.htm On Jun 26, 1:25 am, Le Chaud Lapin ltjaibudu...@gmail.comgt wrote: igt On Jun 26, 12:50 am, Le Chaud Lapin ltjaibudu...@gmail.comgt wrote:/i igt/i igt...... The post has 11 replies so far. Read more and discuss here ... The post has 11 replies so far. Read more and discuss here ]]> Wed, 02 Jul 2008 01:20:57 -0400 http://forums.cabling-design.com/MDI-termination-article7700-13.htm The paired MDI signals from the PHY to the magnetics in a GbE application are each terminated by a 50R resistor and then together to a 10nF capacitor ...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Tue, 01 Jul 2008 15:19:17 -0400 http://forums.cabling-design.com/URGENT-Cal-Buffer-Size-based-on-User-ip-Bandw-article7674-13.htm Hi all, I wanted to calculate UDP send buffer size based on Bandwidth given by User. It works like this: user bandwidth i/p 300 Mbps based on ab...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Mon, 30 Jun 2008 01:05:51 -0400 http://forums.cabling-design.com/route-field-article7668-13.htm hi, is there is a necessity of route field in layer 2 switch ... please tell me ... Thanks in advance Vikrant ... The post has 35 replies so far. Read more and discuss here ... The post has 35 replies so far. Read more and discuss here ]]> Sun, 29 Jun 2008 04:16:11 -0400 http://forums.cabling-design.com/Query-related-to-a-stp-and-vlan-case-article7648-13.htm Hi, to all please go to that link below to see my query stored in a file which is accessable as my query need some graphics along with it http://vi...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Thu, 26 Jun 2008 13:53:04 -0400 http://forums.cabling-design.com/8021Q-(1998)--and--8021Q-(2003)-article7639-13.htm Hi, can any body plz explain the difference b/w IEEE 802.1Q (1998) and IEEE 802.1Q (2003) Thanks in advance. Vikrant ... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Thu, 26 Jun 2008 02:17:04 -0400 http://forums.cabling-design.com/Windows-PC-As-IEEE-80211-Access-Point-article7635-13.htm Hi All, The only limitation would be what 802.11 functions the vendor decided not to support in a device mean to be used as STAonly. Frankly, if I we...... The post has 14 replies so far. Read more and discuss here ... The post has 14 replies so far. Read more and discuss here ]]> Wed, 25 Jun 2008 16:43:56 -0400 http://forums.cabling-design.com/Leaky-VLAN-article7633-13.htm Hi, Can U plz tell me about Leaky VLAN concept.... plz also provide ur emailid for further discussion as some of my queries are .... in form ...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Tue, 24 Jun 2008 07:38:19 -0400 http://forums.cabling-design.com/Crossover-function-in-the-standard-article7630-13.htm Hi Im looking for an authoritative answer to the following question (preferably by referencing specific pages from the IEEE standard): Is the direct...... The post has 11 replies so far. Read more and discuss here ... The post has 11 replies so far. Read more and discuss here ]]> Mon, 23 Jun 2008 16:34:09 -0400 http://forums.cabling-design.com/multiple-vlans-at-a-single-port-article7627-13.htm Hi, can any body plz tell or explain me that : Is it possible that at a single port of a L 2 switch there may be multiple vlans, and if yes then p...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Mon, 23 Jun 2008 01:13:02 -0400 http://forums.cabling-design.com/Maximum-AutoNegotiation-Time-on-TwistedPair-Giga-article7621-13.htm Hello, I need to know how much time the AutoNegotiation process can take in 1000BaseT networks. I have already looked into the IEEE 802.3 standard, b...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Thu, 19 Jun 2008 08:21:10 -0400 http://forums.cabling-design.com/Mac-address-and-VLAns-article7618-13.htm Hi, Plz explain ... A single mac address is able to be a member of multiple vlans. VIkrant ... The post has 17 replies so far. Read more and discuss here ... The post has 17 replies so far. Read more and discuss here ]]> Tue, 17 Jun 2008 01:27:35 -0400 http://forums.cabling-design.com/2s-complement-sum-article7616-13.htm Hi, what is 2s complement sum Plz expain..... Vikrant ... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Mon, 16 Jun 2008 05:08:56 -0400 http://forums.cabling-design.com/Webasto-HL32-ei-starttaa-uudestaan--article7615-13.htm TEM Mys netiss on virheellisesti ja ilmeisen tarkoitushakuisesti levitelty laajasti tietoa siit, ett me valtionhallinnon edustajistot olisimme kuum...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Sun, 15 Jun 2008 21:40:29 -0400 http://forums.cabling-design.com/Source-MAC-address-per-IP-packet-article7614-13.htm Hello, for a networking application, I need to set the source MAC address individually for every IP packet that I send. Is this possible at all I kno...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Sun, 15 Jun 2008 15:02:47 -0400 http://forums.cabling-design.com/100BASETX-Scrambler-Problem-article7609-13.htm For 100BASETX, the scrambler is defined with 18 lines of Verilog code. One could use some different circuit as long as it acts exactly the same as t...... The post has 2 replies so far. Read more and discuss here ... The post has 2 replies so far. Read more and discuss here ]]> Thu, 12 Jun 2008 21:04:43 -0400 http://forums.cabling-design.com/Re-Wireless-Vs-Ethernet-Extenders--800m-article7608-13.htm xposted to the wireless newsgroup this question keeps coming up, might do a search with Google / groups gfretwell@aol.com wrote: igt On Tue, 10 Jun...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Thu, 12 Jun 2008 15:25:29 -0400 http://forums.cabling-design.com/Mapping-class-D-to-Ethernet-physical-address-article7598-13.htm Hi, Is the Multicast IP to mac resolution is done at host pcs end also. to make a multicast MAC address For exp if multicast ip address is 227....... The post has 5 replies so far. Read more and discuss here ... The post has 5 replies so far. Read more and discuss here ]]> Wed, 11 Jun 2008 04:08:49 -0400 http://forums.cabling-design.com/Decent-48p-switch-for-600-article7586-13.htm Hello Im looking for a replacement for our quot3com Baseline Switch 2250 plusquot 48p switch. This is the second 3com 2250+ we have had (the last one...... The post has 3 replies so far. Read more and discuss here ... The post has 3 replies so far. Read more and discuss here ]]> Sun, 08 Jun 2008 18:38:44 -0400 http://forums.cabling-design.com/Want-direct-dialup-access-to-my-LAN-article7584-13.htm Hi. I have a Win 98 computer that I want to use on the road to dialup my Win XP Home computer that is connected to my LAN. The LAN is via a DSL modem ...... The post has 9 replies so far. Read more and discuss here ... The post has 9 replies so far. Read more and discuss here ]]> Sun, 08 Jun 2008 16:16:01 -0400 http://forums.cabling-design.com/IP-layer-and-layer-2-IGMP-Snooping-article7576-13.htm Hi,, What is the difference in IP Layer IGMP Snooping and, Layer 2 IGMP Snoo...... The post has 10 replies so far. Read more and discuss here ... The post has 10 replies so far. Read more and discuss here ]]> Sat, 07 Jun 2008 01:28:33 -0400 http://forums.cabling-design.com/Spanning-Tree-Protocol-article7564-13.htm Hi, This is a physical topology of network. | | | | layer |...... The post has 13 replies so far. Read more and discuss here ... The post has 13 replies so far. Read more and discuss here ]]> Thu, 05 Jun 2008 06:38:03 -0400 http://forums.cabling-design.com/Port-Mirroring-article7563-13.htm Hi, Can any body please tell me about port mirroring. Is port mirroring is handled by software programming or its hardwired..... Thanks Vikrant ... The post has 2 replies so far. Read more and discuss here ... The post has 2 replies so far. Read more and discuss here ]]> Thu, 05 Jun 2008 05:32:13 -0400 http://forums.cabling-design.com/Ethernet-PCS-question-article7561-13.htm Hi, I designing an Elastic buffer for Ethernet, I would like to insert/ delete I1 and I2 characters. I1 K28.5 amp D5.6, I2 K28.5 amp D16.2 I would...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Wed, 04 Jun 2008 05:45:44 -0400 http://forums.cabling-design.com/IGMP-Snooping-article7547-13.htm Hi, Can any one plz tell me about the difference between IP Layer IGMP Snooping amp Layer 2 IGMP Snooping Thanks .... ... The post has 4 replies so far. Read more and discuss here ... The post has 4 replies so far. Read more and discuss here ]]> Mon, 02 Jun 2008 08:17:36 -0400 http://forums.cabling-design.com/Connect-to-ethernet-LAN-through-dialup-direct-to--article7535-13.htm Hi. Im back with another idea. I investigated a dry pair, and after hours of talking to many people at the phone company (Verizon), finally someone di...... The post has 11 replies so far. Read more and discuss here ... The post has 11 replies so far. Read more and discuss here ]]> Thu, 29 May 2008 15:39:37 -0400 http://forums.cabling-design.com/newbie-cat-5-question-article7527-13.htm Hi there Please can you help I need to know if you can extend CAT5 cables with CAT5e cables in theory, and vice versa Thanks ... The post has 6 replies so far. Read more and discuss here ... The post has 6 replies so far. Read more and discuss here ]]> Wed, 28 May 2008 19:29:03 -0400 http://forums.cabling-design.com/Hashing-Algoritm-article7525-13.htm Can anybody please explain the hashing algorithm used in layer 2 switch controller .. for finding enteries in side ARL (or ATU ) table... as mac addre...... The post has 2 replies so far. Read more and discuss here ... The post has 2 replies so far. Read more and discuss here ]]> Wed, 28 May 2008 08:58:05 -0400 http://forums.cabling-design.com/VLAN-article7522-13.htm If a layer 2 switch is using IEEE 802.1q compatibility, then is it support both ieee 802.1q and portbased vlan compatibility ... The post has 6 replies so far. Read more and discuss here ... The post has 6 replies so far. Read more and discuss here ]]> Sat, 24 May 2008 02:08:04 -0400 http://forums.cabling-design.com/Queries-related-to-VLAN-article7521-13.htm Hi to all I am Vikrant, doing training in embedded Techonology. So my question is , 1: What the difference between a layer 2 switch wh...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Sat, 24 May 2008 01:44:20 -0400 http://forums.cabling-design.com/switches-or-other-devices-which-respond-to-Test-fr-article7520-13.htm Hi HPUX (and MPE before it IIRC) has a utility called quotlinkloopquot which will send an 802.2 test frame to a specified MAC and check for a respon...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Fri, 23 May 2008 14:31:51 -0400 http://forums.cabling-design.com/Cisco-Aironet-350-remote-reboot-article7519-13.htm Hello I have a pair of Cisco bridges that sometimes I need to reboot. The problem is that I cant find how to do that remotely. The web interface doe...... The post has 1 replies so far. Read more and discuss here ... The post has 1 replies so far. Read more and discuss here ]]> Wed, 21 May 2008 13:05:49 -0400 http://forums.cabling-design.com/raw-socket-receiving-junk-data-article7518-13.htm Hi Friends, I am trying to read data from the link layer using linux raw sockets. I tested the program by sending loop back packe...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Wed, 21 May 2008 01:32:03 -0400 http://forums.cabling-design.com/Need-to-extend-an-ethernet-LAN-over-phone-company--article7492-13.htm I am not very familiar with all the terminology. I have two locations less than a mile apart in a rural area. I assume the phone company could (if I k...... The post has 31 replies so far. Read more and discuss here ... The post has 31 replies so far. Read more and discuss here ]]> Sat, 17 May 2008 14:36:54 -0400 http://forums.cabling-design.com/Re-Netgear--powerline-extenders-article7478-13.htm xposted to Ethernet newsgroup.... as its more of that vs wifi Lloyd E. Sponenburgh wrote: igt I had one of my folks pick up a Netgear HDX101 powerlin...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Mon, 12 May 2008 16:25:11 -0400 http://forums.cabling-design.com/Discover-The-Secrets-To-Generating-Traffic-With-On-article7477-13.htm Are You A Traffic Turkey 1. Your competition is carving up your potential traffic and pilfering your prospects six ways to Sunday. 2. You fell for t...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Mon, 12 May 2008 15:16:08 -0400 http://forums.cabling-design.com/Netgear-PS101-print-server-stalling-article7475-13.htm I have an old HP laserjet printer that has been connected to our desktop via parallel connection. Its worked for years around the WiFi house, but we h...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Sat, 10 May 2008 21:50:26 -0400 http://forums.cabling-design.com/STP-and-RSTP-congergence-time-article7468-13.htm How faster is RSTP than STP (same topology) 1. init (power up) to stable STP is 20+15+1550s how about RSTP 2. Topology change STP 3050s ...... The post has 14 replies so far. Read more and discuss here ... The post has 14 replies so far. Read more and discuss here ]]> Fri, 09 May 2008 12:10:11 -0400 http://forums.cabling-design.com/Rj45-cable-optimized-for-low-space-article7459-13.htm Hello, I need to put an rj45 ethernet cable where there is few space for cable connector. Can you suggest me where to buy quotangularquot cables in E...... The post has 7 replies so far. Read more and discuss here ... The post has 7 replies so far. Read more and discuss here ]]> Thu, 08 May 2008 05:36:17 -0400 http://forums.cabling-design.com/WTB--I-NEED-TO-BUY-LIST-OF-TELECOM-NETWORKING-S-article7447-13.htm WTB: I NEED TO BUY LIST OF TELECOM, NETWORKING, SOFTWARE, CISCO, MICROSOFT, NORTEL, LUCENT, ALCATEL amp MORE PLEASE LOOK BELOW AT ALL OF MY WANT TO...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Tue, 06 May 2008 02:05:53 -0400 http://forums.cabling-design.com/VLAN-unaware-bridge-article7442-13.htm Hello, Would like to know whehter L2switch is not VLAN aware bridge will forward VLAN tagged packets to VLAN unaware hosts. How L2Bridge will act if ...... The post has 4 replies so far. Read more and discuss here ... The post has 4 replies so far. Read more and discuss here ]]> Mon, 05 May 2008 01:56:53 -0400 http://forums.cabling-design.com/Re-Ethernet-connection-sensitive-to-cable-length-article7422-13.htm added cabling amp ethernet newsgroups Wonder if a small ethernet cable tester has been used to verify proper pairs windsurferLA wrote: igt Ethern...... The post has 28 replies so far. Read more and discuss here ... The post has 28 replies so far. Read more and discuss here ]]> Sat, 03 May 2008 12:37:47 -0400 http://forums.cabling-design.com/MAC-addresses-in-router-vs-Access-Point-article7404-13.htm why does an access point have 2 MAC addresses (one WLAN, one LAN) while a router has only one even if it has lan ports and wan ports thanks ... The post has 26 replies so far. Read more and discuss here ... The post has 26 replies so far. Read more and discuss here ]]> Thu, 01 May 2008 05:19:21 -0400 http://forums.cabling-design.com/Secure-your-network-proactively-article7402-13.htm Secure Auditor is a unified digital risk management solution which secures your Cisco Routers proactively. Now do not wait for a hacker to identify v...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Tue, 22 Apr 2008 05:19:55 -0400 http://forums.cabling-design.com/Audit-your-network-for-security-vulnerabilities-article7400-13.htm Audit your network for security vulnerabilities like patches, trojans, viruses, access control issues, denial of service attack etc with the help of S...The post does not have any replies yet. Read more and discuss here The post does not have any replies yet. Read more and discuss here ]]> Thu, 17 Apr 2008 02:38:37 -0400 http://forums.cabling-design.com/10100-Ethernet-Differential-Pairs-PCB-Trace-Lengt-article7393-13.htm Hi, How long can the pcb trace length for the TX and RX differential pairs of a 10/100 PHY interface to the Magnetics be Using Intels LXT971A with Pu...... The post has 6 replies so far. Read more and discuss here ... The post has 6 replies so far. Read more and discuss here ]]> Tue, 15 Apr 2008 14:56:14 -0400 http://forums.cabling-design.com/high-availability-and-fiber-channel-article7390-13.htm Hello, This is the current situation igt |||||||||||||||||| gt Firewall/i F.O. switch copper Id like to introduce high availability...... The post has 2 replies so far. Read more and discuss here ... The post has 2 replies so far. Read more and discuss here ]]> Sat, 12 Apr 2008 09:32:31 -0400