Re: 100mb Ethernet over Type 1 ... [7:4897]
doing a token ring conversion? This appears to work to 16 meg token ring speeds? Brian "Sonic" Whalen Success = Preparation + Opportunity On Thu, 17 May 2001, Hornbeck, Timothy wrote: > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are > some of the issues in doing so? Looking to cut some costs on a project. > > Timothy J. Hornbeck > Technical Analyst III > Infrastructure Implementation - LAN/WAN > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4898&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 100mb Ethernet over Type 1 ... [7:4897]
What is type 1 cabling? Please let me know. What I have implemented is Category 3,4, and 5 UTP cabling. Brijesh - Original Message - From: "Hornbeck, Timothy" To: Sent: Friday, May 18, 2001 12:54 AM Subject: 100mb Ethernet over Type 1 ... [7:4897] > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are > some of the issues in doing so? Looking to cut some costs on a project. > > Timothy J. Hornbeck > Technical Analyst III > Infrastructure Implementation - LAN/WAN > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4900&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 100mb Ethernet over Type 1 ... [7:4897]
Yes, we've been doing it for a couple years. The only issues we have run into are with using 2924XL switches. When you are running token ring, the connectors automatically loopback when they are disconnected so that the ring is not broken. The 2924XL switches have a bug that causes the port to freak out when the connector loops back. The only way to fix this is to reset the switch. You have 2 options - 1. Make sure everyone knows not to disconnect the IBM connector end of the cable until it has been disconnected form the switch, or 2. remove/cut the think wire inside of the connector that causes the loopback. Just make sure you never need to use the connector in a token ring network again or you will have problems. Other than that, we've had surprisingly few problems... Dave >> Original Message wrote regarding 100mb Ethernet over Type 1 ... [7:4897]: > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are > some of the issues in doing so? Looking to cut some costs on a project. > Timothy J. Hornbeck > Technical Analyst III > Infrastructure Implementation - LAN/WAN > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4903&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 100mb Ethernet over Type 1 ... [7:4897]
Yes, We did it at my last place of employment to buy us some time when upgrading our Token-Ring network to 100mb Ethernet, Blackbox makes an adapter that you plug into the type 1 wall connecter that converts it to RJ45. I'll try and find out the part number for ya. We didn't have any problems with them, ran about 30 systems (100mb Ethernet) on the old token-ring cables for about a month before we could get the cat 5 installed. They may still have the adapters laying around that they may give to you...I'll find out. Paul -Original Message- From: Hornbeck, Timothy [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 17, 2001 3:25 PM To: [EMAIL PROTECTED] Subject: 100mb Ethernet over Type 1 ... [7:4897] Is it possible to run 100mb Ethernet over Type1 cabling? If so what are some of the issues in doing so? Looking to cut some costs on a project. Timothy J. Hornbeck Technical Analyst III Infrastructure Implementation - LAN/WAN "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4904&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 100mb Ethernet over Type 1 ... [7:4897]
Type-1 cabling is more commonly known as "Shielded Twisted Pair." It's a heavy gauge 2 pair cabling that was used in legacy Token Ring environments, before UTP caught on. It's excellent cable, due to it's braided shielding. It's flaws were it's cost, and it's size (very thick, and somewhat difficult to work with). It's clear to me where Timothy is coming from... He's got a client with an existing Token Ring network looking to migrate to Fast Ethernet, and they'd like to leverage what must have been a tremendously expensive cabling infrastructure since they've already paid for it. >From http://www.ece.ac.ae/techstuff/networking/fetech.html : ---[Pasted Text]--- 100BASE-TX Physical Layer This physical layer defines the specification for 100BASE-T Ethernet over two pairs of Category 5 UTP (unshielded) or Type 1 STP (shielded) twisted-pair wire. With one pair for transmit and the other for receive, the wiring scheme is identical to that used for 10BASE-T Ethernet. The UTP connector, an RJ-45, is also identical to the one used for 10BASE-T Ethernet, wired in exactly the same fashion. However, the punch-down blocks in the wiring closet must be Category 5 certified. Where these blocks do not meet the standard, an upgrade is necessary. The STP connector is the same DB-9 used for Token Ring networks. ---[End Paste]--- It would appear that there is nothing to prevent the use of Fast Ethernet over Type-1, but I've never seen it done. You can be sure that someone has done it though... Keep looking... Alan - Original Message - From: "Brijesh" To: Sent: Thursday, May 17, 2001 3:55 PM Subject: Re: 100mb Ethernet over Type 1 ... [7:4897] > What is type 1 cabling? Please let me know. What I have implemented is > Category 3,4, and 5 UTP cabling. > > Brijesh > - Original Message - > From: "Hornbeck, Timothy" > To: > Sent: Friday, May 18, 2001 12:54 AM > Subject: 100mb Ethernet over Type 1 ... [7:4897] > > > > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are > > some of the issues in doing so? Looking to cut some costs on a project. > > > > Timothy J. Hornbeck > > Technical Analyst III > > Infrastructure Implementation - LAN/WAN > > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4911&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 100mb Ethernet over Type 1 ... [7:4897]
Netrix also makes these: Part number: N-DC45IND-ET >>>>>>>>>>>>>>>>>> Original Message wrote regarding RE: 100mb Ethernet over Type 1 ... [7:4897]: > Yes, > We did it at my last place of employment to buy us some time when upgrading > our Token-Ring network to 100mb Ethernet, Blackbox makes an adapter that you > plug into the type 1 wall connecter that converts it to RJ45. I'll try and > find out the part number for ya. We didn't have any problems with them, ran > about 30 systems (100mb Ethernet) on the old token-ring cables for about a > month before we could get the cat 5 installed. They may still have the > adapters laying around that they may give to you...I'll find out. > Paul > -Original Message- > From: Hornbeck, Timothy [mailto:[EMAIL PROTECTED]] > Sent: Thursday, May 17, 2001 3:25 PM > To: [EMAIL PROTECTED] > Subject: 100mb Ethernet over Type 1 ... [7:4897] > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are > some of the issues in doing so? Looking to cut some costs on a project. > Timothy J. Hornbeck > Technical Analyst III > Infrastructure Implementation - LAN/WAN > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=5000&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 100mb Ethernet over Type 1 ... [7:4897]
Timothy, As others have pointed out, this can be done. I investigated this about 5 years ago for a client and the main issue is that some of the IBM connectors and patch panels cannot support the higher frequencies needed for 100MB Ethernet (it has to do with the way the connectors are constructed). They will work fine for 10MB, but not 100. There are IBM connectors and patch panels that are 100MB certified, but if your client doesn't already have the infrastructure to support 100MB, they will be far better off pulling new CAT5 cabling. To find out if they're cabling will support 100MB, just get a couple of IBM media filter cables (IBM type 1 connector to RJ45 adapters) and try to connect at 100MB. If it works at 10 but not at 100, your infrastructure most likely is not 100MB capable. HTH, Kent On 17 May 2001, at 15:24, Hornbeck, Timothy wrote: > Is it possible to run 100mb Ethernet over Type1 cabling? If so what > are some of the issues in doing so? Looking to cut some costs on a > project. > > Timothy J. Hornbeck > Technical Analyst III > Infrastructure Implementation - LAN/WAN > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html Report misconduct and > Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=5477&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 100mb Ethernet over Type 1 ... [7:4897]
Cisco and Enterasys now have some nerd knobs to allow for Type 1 usage where it detects lookbacks in this scenario and shuts the port down to eliminate the flood of traffic. -- Eric Fairfield CCIE #6413 ""David McGlumphy"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Yes, we've been doing it for a couple years. The only issues we have run > into are with using 2924XL switches. When you are running token ring, the > connectors automatically loopback when they are disconnected so that the > ring is not broken. The 2924XL switches have a bug that causes the port > to freak out when the connector loops back. The only way to fix this is > to reset the switch. You have 2 options - 1. Make sure everyone knows > not to disconnect the IBM connector end of the cable until it has been > disconnected form the switch, or 2. remove/cut the think wire inside of > the connector that causes the loopback. Just make sure you never need to > use the connector in a token ring network again or you will have > problems. Other than that, we've had surprisingly few problems... > Dave > > > > > >> Original Message wrote regarding 100mb Ethernet over > Type 1 ... [7:4897]: > > > > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are > > some of the issues in doing so? Looking to cut some costs on a project. > > > Timothy J. Hornbeck > > Technical Analyst III > > Infrastructure Implementation - LAN/WAN > > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear") > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=5850&t=4897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
