Re: [c-nsp] DS3 Nubie
On Monday, September 27, 2010 01:23:52 am Seth Mattinen wrote: Ethernet has a much greater degree of operational stupidity and problem solving ineptness over the classic stuff. Ultimately its only advantage is cost. Which is not a trivial matter when you start hitting the big numbers, i.e., 1Gbps, 10Gbps, e.t.c. Perhaps Ethernet's simplicity is what has made it cheaper as bandwidth has gone up. Maybe the simplicity is now starting to show as it becomes a viable alternative to SONET/SDH/WDM. Yes, link failure detection and other niceties are being/have been modeled into different applications (IP, MPLS, 802.something) that work on top of, alongside or within Ethernet. Whether that is enough is an exercise left to the reader. Cheers, Mark. signature.asc Description: This is a digitally signed message part. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Hi Jon- Kind of what I was thinking - if the transport (fiber or other transport) is on the other side of a managed Ethernet box I won't know if there are physical line problems as I won't be able to see interface counters on it... As it is right now I get emailed anytime any interface on my network takes errors I would be leery of any connection that I couldn't see what errors were incrementing on the link between CO to my site. Thanks, -Jeff -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Jon Lewis Sent: Sunday, September 26, 2010 8:32 AM To: Christopher J. Wargaski Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] DS3 Nubie On Sat, 25 Sep 2010, Christopher J. Wargaski wrote: This year I installed a video WAN comprised of several 3845 routers with the NM-1T3/E3 for point to point DS3s (that is all, nothing else). The 3845 routers list at $13,000 and the network module at $8,500. You should do yourself and your firm a favor and look at business class Ethernet. DS3s are so expensive and sometimes a major pain in the butt. For business class Ethernet, you most major carriers can offer you something. Typically, fiber is pulled to your NetPOP and a switch is installed, your hand-off is a switch port. The downside is the cost of delivering fiber to your building which can often be quite prohibitive unless you can amortize that cost over a number of years. (Unfortunately, that may not be possible since the deliverable may not be considered a product to your accounting department.) There are other downsides [to metro ethernet] to consider. Using ethernet for long haul, your devices at each end are no longer directly connected, but will have a network (the provider's ethernet switches) between them. Failures in the network will cause your ends to lose contact with each other, while their interfaces remain up/up. Depending on the speed provisioned by the provider, and the speed of your networks, you can run into bursting/packet drops issues when your 1000baseT traffic hits the 10mbit or 100mbit metro-E. Also, because your packets are flowing over the provider's switched network, they typically ride a specific VLAN. If (no, when) the provider screws up and puts another customer in the same VLAN, very strange things will happen, particularly if you're both using the same RFC1918 IPs. This is something you generally don't have to worry about with private lines. -- Jon Lewis, MCP :) | I route Senior Network Engineer | therefore you are Atlantic Net| _ http://www.lewis.org/~jlewis/pgp for PGP public key_ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On Sat, 25 Sep 2010, Christopher J. Wargaski wrote: This year I installed a video WAN comprised of several 3845 routers with the NM-1T3/E3 for point to point DS3s (that is all, nothing else). The 3845 routers list at $13,000 and the network module at $8,500. You should do yourself and your firm a favor and look at business class Ethernet. DS3s are so expensive and sometimes a major pain in the butt. For business class Ethernet, you most major carriers can offer you something. Typically, fiber is pulled to your NetPOP and a switch is installed, your hand-off is a switch port. The downside is the cost of delivering fiber to your building which can often be quite prohibitive unless you can amortize that cost over a number of years. (Unfortunately, that may not be possible since the deliverable may not be considered a product to your accounting department.) There are other downsides [to metro ethernet] to consider. Using ethernet for long haul, your devices at each end are no longer directly connected, but will have a network (the provider's ethernet switches) between them. Failures in the network will cause your ends to lose contact with each other, while their interfaces remain up/up. Depending on the speed provisioned by the provider, and the speed of your networks, you can run into bursting/packet drops issues when your 1000baseT traffic hits the 10mbit or 100mbit metro-E. Also, because your packets are flowing over the provider's switched network, they typically ride a specific VLAN. If (no, when) the provider screws up and puts another customer in the same VLAN, very strange things will happen, particularly if you're both using the same RFC1918 IPs. This is something you generally don't have to worry about with private lines. -- Jon Lewis, MCP :) | I route Senior Network Engineer | therefore you are Atlantic Net| _ http://www.lewis.org/~jlewis/pgp for PGP public key_ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
There are other downsides [to metro ethernet] to consider. Using ethernet for long haul, your devices at each end are no longer directly connected, but will have a network (the provider's ethernet switches) between them. Failures in the network will cause your ends to lose contact with each other, while their interfaces remain up/up. Some providers offer WDM services with an Ethernet interface, and ensure that a failure in the network results in link down. Your point is still valid for many Ethernet service offerings, though. Steinar Haug, Nethelp consulting, sth...@nethelp.no ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On Sat, 25 Sep 2010, Christopher J. Wargaski wrote: Hey Jeff-- This year I installed a video WAN comprised of several 3845 routers with the NM-1T3/E3 for point to point DS3s (that is all, nothing else). The 3845 routers list at $13,000 and the network module at $8,500. You should do yourself and your firm a favor and look at business class Ethernet. DS3s are so expensive and sometimes a major pain in the butt. ...or you can buy a 7204 with a DS3 adapter on the secondary market for a tenth of that cost. That said, ethernet is getting cheaper and more widely deployed. We were very pleased to discover that Verizon was finally offering this service in our LATA. NxT1 now upgrades to ethernet instead of frac DS3 for our customers. Andy --- Andy Dills Xecunet, Inc. www.xecu.net 301-682-9972 --- ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On 9/26/10 8:26 AM, Andy Dills wrote: On Sat, 25 Sep 2010, Christopher J. Wargaski wrote: Hey Jeff-- This year I installed a video WAN comprised of several 3845 routers with the NM-1T3/E3 for point to point DS3s (that is all, nothing else). The 3845 routers list at $13,000 and the network module at $8,500. You should do yourself and your firm a favor and look at business class Ethernet. DS3s are so expensive and sometimes a major pain in the butt. ...or you can buy a 7204 with a DS3 adapter on the secondary market for a tenth of that cost. That said, ethernet is getting cheaper and more widely deployed. We were very pleased to discover that Verizon was finally offering this service in our LATA. NxT1 now upgrades to ethernet instead of frac DS3 for our customers. I tried that route - took Verizon a year and a half to admit they couldn't get the long haul portion to work on a transit link over 100 meg Ethernet, which was basically an Overture with an OC-3. Ended up ordering traditional loops over the same mux from someone else no problem. Local PTP is fine though. Ethernet has a much greater degree of operational stupidity and problem solving ineptness over the classic stuff. Ultimately its only advantage is cost. ~Seth ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Hey Jeff-- This year I installed a video WAN comprised of several 3845 routers with the NM-1T3/E3 for point to point DS3s (that is all, nothing else). The 3845 routers list at $13,000 and the network module at $8,500. You should do yourself and your firm a favor and look at business class Ethernet. DS3s are so expensive and sometimes a major pain in the butt. For business class Ethernet, you most major carriers can offer you something. Typically, fiber is pulled to your NetPOP and a switch is installed, your hand-off is a switch port. The downside is the cost of delivering fiber to your building which can often be quite prohibitive unless you can amortize that cost over a number of years. (Unfortunately, that may not be possible since the deliverable may not be considered a product to your accounting department.) cjw ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] DS3 Nubie
All: We are considering upgrading one of our circuits to a fractional DS3 and would just like query the experts on the list to make sure that I have all my bases covered here if we go down the DS3 route as I have never touched DS3 before... I am considering using the following equipment: 3925 Router + NM-1T3/E3 + SM-NM-ADPTR (per http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/product_data_sheet09186a008010fba2_ps282_Products_Data_Sheet.html) That part seems pretty straightforward (but please correct me if I am wrong). Can I safely assume that since the carriers proposal doesn't mention ATM that I don't need NM-1A-T3/E3? Then from DMARC to my router I need to use 734 type cable with 75 Ohm BNC connectors (per tread from yesterday). Am I missing anything? Thanks in advance, Jeff Wojciechowski LAN, WAN and Telephony Administrator Midland Paper Company 101 E Palatine Rd Wheeling, IL 60090 * tel: 847.777.2829 * fax: 847.403.6829 e-mail: jeff.wojciechow...@midlandpaper.commailto:jeff.wojciechow...@midlandpaper.com http://www.midlandpaper.com This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On 9/24/10 11:56 AM, Jeff Wojciechowski wrote: All: We are considering upgrading one of our circuits to a fractional DS3 and would just like query the experts on the list to make sure that I have all my bases covered here if we go down the DS3 route as I have never touched DS3 before... I am considering using the following equipment: 3925 Router + NM-1T3/E3 + SM-NM-ADPTR (per http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/product_data_sheet09186a008010fba2_ps282_Products_Data_Sheet.html) That part seems pretty straightforward (but please correct me if I am wrong). Can I safely assume that since the carriers proposal doesn't mention ATM that I don't need NM-1A-T3/E3? Then from DMARC to my router I need to use 734 type cable with 75 Ohm BNC connectors (per tread from yesterday). Am I missing anything? This may seem obvious to anyone who has done this before but may be worth mentioning... The DS-3 signal operates uses a separate co-axial cable for each direction of transmission, so you will want a dual 734-type cable (two BNC connectors on each end, two physical co-ax cables.) The usual clocking, framing, etc. issues that apply to T-1 and other serial links apply. Exactly one clock source, framing must match on both ends, etc. Generally, C-bit is used for data pipes, M13 for T1s muxed up to T3. For fractional, you may have to work with your carrier for CSU-type settings and the like, but this is all configurable on the Cisco gear. Some carriers configure the CSU to make the pipe fractional and others just limit the throughput in software and leave the physical media at the full line rate. -- Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
One time I ordered a internet DS3 from ATT (prior to merger with SBC), I asked the rep about the order confirmation because it said ATM and I specifically said no ATM when we signed the contract. Rep said it's not ATM and don't worry. It got installed and it was ATM circuit. I complained and they gave us a free router and ATM DS3 card. (I forgot what router it was but it was probably pretty expensive back then) I never had problems with other carriers like that though. If you don't make DS3 cable often, I will recommend have a vendor make one for you. You may also want to buy or be ready to buy couple attenuators. At one location, the Telco equipment was sending out signal that was too hot for the DS3 interface and I had to attenuate it quite a bit. Telco would not lower the output for us. On Fri, Sep 24, 2010 at 2:56 PM, Jeff Wojciechowski jeff.wojciechow...@midlandpaper.com wrote: All: We are considering upgrading one of our circuits to a fractional DS3 and would just like query the experts on the list to make sure that I have all my bases covered here if we go down the DS3 route as I have never touched DS3 before... I am considering using the following equipment: 3925 Router + NM-1T3/E3 + SM-NM-ADPTR (per http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/product_data_sheet09186a008010fba2_ps282_Products_Data_Sheet.html) That part seems pretty straightforward (but please correct me if I am wrong). Can I safely assume that since the carriers proposal doesn't mention ATM that I don't need NM-1A-T3/E3? Then from DMARC to my router I need to use 734 type cable with 75 Ohm BNC connectors (per tread from yesterday). Am I missing anything? Thanks in advance, Jeff Wojciechowski LAN, WAN and Telephony Administrator Midland Paper Company 101 E Palatine Rd Wheeling, IL 60090 * tel: 847.777.2829 * fax: 847.403.6829 e-mail: jeff.wojciechow...@midlandpaper.commailto:jeff.wojciechow...@midlandpaper.com http://www.midlandpaper.com This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-...@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On Fri, 24 Sep 2010, Jeff Wojciechowski wrote: We are considering upgrading one of our circuits to a fractional DS3 and would just like query the experts on the list to make sure that I have all my bases covered here if we go down the DS3 route as I have never touched DS3 before... I am considering using the following equipment: 3925 Router + NM-1T3/E3 + SM-NM-ADPTR (per http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/product_data_sheet09186a008010fba2_ps282_Products_Data_Sheet.html) That part seems pretty straightforward (but please correct me if I am wrong). Can I safely assume that since the carriers proposal doesn't mention ATM that I don't need NM-1A-T3/E3? Then from DMARC to my router I need to use 734 type cable with 75 Ohm BNC connectors (per tread from yesterday). Am I missing anything? Depending on your location and connectivity needs, you might want to check into the availability of an Ethernet service. There is a good chance your cost per megabit will be somewhat lower, and you won't need to purchase DS3 interface cards, etc. jms ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Justin- Our carriers managed Ethernet has a max of 6 T1s feeding it (for our location) so that limits us to less than 10Mbps so I think fractional DS3 will be our best bet. Especially when upgrading from a 4 T bundle to a 10Mbps burstable to 45Mbps DS3 is only ~40% more per month Thanks, -Jeff -Original Message- From: Justin M. Streiner [mailto:strei...@cluebyfour.org] Sent: Friday, September 24, 2010 2:42 PM To: Jeff Wojciechowski Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] DS3 Nubie On Fri, 24 Sep 2010, Jeff Wojciechowski wrote: We are considering upgrading one of our circuits to a fractional DS3 and would just like query the experts on the list to make sure that I have all my bases covered here if we go down the DS3 route as I have never touched DS3 before... I am considering using the following equipment: 3925 Router + NM-1T3/E3 + SM-NM-ADPTR (per http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/produ ct_data_sheet09186a008010fba2_ps282_Products_Data_Sheet.html) That part seems pretty straightforward (but please correct me if I am wrong). Can I safely assume that since the carriers proposal doesn't mention ATM that I don't need NM-1A-T3/E3? Then from DMARC to my router I need to use 734 type cable with 75 Ohm BNC connectors (per tread from yesterday). Am I missing anything? Depending on your location and connectivity needs, you might want to check into the availability of an Ethernet service. There is a good chance your cost per megabit will be somewhat lower, and you won't need to purchase DS3 interface cards, etc. jms This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Definitely planning on having the cable guys extend our dmarc with pre-made cables. How do you know if the DS3 signal is too hot? Thanks, Jeff -Original Message- From: Jay Nakamura [mailto:zeusda...@gmail.com] Sent: Friday, September 24, 2010 2:41 PM To: Jeff Wojciechowski Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] DS3 Nubie If you don't make DS3 cable often, I will recommend have a vendor make one for you. You may also want to buy or be ready to buy couple attenuators. At one location, the Telco equipment was sending out signal that was too hot for the DS3 interface and I had to attenuate it quite a bit. Telco would not lower the output for us. This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On 9/24/2010 12:48, Jeff Wojciechowski wrote: Definitely planning on having the cable guys extend our dmarc with pre-made cables. How do you know if the DS3 signal is too hot? You'll see errors on your interface counters. However, I have never seen this personally with the NM-1T3/E3 cards, only some flavors of PA T3. ~Seth ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On Fri, Sep 24, 2010 at 3:48 PM, Jeff Wojciechowski jeff.wojciechow...@midlandpaper.com wrote: Definitely planning on having the cable guys extend our dmarc with pre-made cables. How do you know if the DS3 signal is too hot? Thanks, Jeff Unless you have fancy DS3 test set, only way to find out is start using it. We saw bunch of errors but telco swore up and down that line was clear. This list clued me into possible hot circuit. Stuck a attenuator in the Rx side and error disappeared. We were using an old 7500 series DS3 card. Newer cards may be more tolerant. We no longer have any DS3s other than muxed T1 and I haven't deployed any at customer sites in 5 years so I don't know how newer cards handle it. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Got it - thanks again everyone! -Jeff -Original Message- From: Jay Nakamura [mailto:zeusda...@gmail.com] Sent: Friday, September 24, 2010 3:07 PM To: Jeff Wojciechowski Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] DS3 Nubie On Fri, Sep 24, 2010 at 3:48 PM, Jeff Wojciechowski jeff.wojciechow...@midlandpaper.com wrote: Definitely planning on having the cable guys extend our dmarc with pre-made cables. How do you know if the DS3 signal is too hot? Thanks, Jeff Unless you have fancy DS3 test set, only way to find out is start using it. We saw bunch of errors but telco swore up and down that line was clear. This list clued me into possible hot circuit. Stuck a attenuator in the Rx side and error disappeared. We were using an old 7500 series DS3 card. Newer cards may be more tolerant. We no longer have any DS3s other than muxed T1 and I haven't deployed any at customer sites in 5 years so I don't know how newer cards handle it. This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
On 9/24/2010 4:07 PM, Jay Nakamura wrote: Unless you have fancy DS3 test set, only way to find out is start using it. We saw bunch of errors but telco swore up and down that line was clear. This list clued me into possible hot circuit. Stuck a attenuator in the Rx side and error disappeared. Our old DS3 came with the coax-to-RJ45 balun adapters. Rather than attenuate, we stuck a long Cat5 jumper in the middle, worked just as well. This on a 7200VXR. Jeff ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Assuming that the DS-3 order is non-ATM (likely unless you asked for ATM), this set-up should work just fine. For the physical connection. Please keep in mind the software needs (routing protocols and router table size) in considering the equipment to ensure it will meet your needs. ___ Brian Johnson Converged Network Engineer (CCNP, ENA) () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp- boun...@puck.nether.net] On Behalf Of Jeff Wojciechowski Sent: Friday, September 24, 2010 1:57 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] DS3 Nubie All: We are considering upgrading one of our circuits to a fractional DS3 and would just like query the experts on the list to make sure that I have all my bases covered here if we go down the DS3 route as I have never touched DS3 before... I am considering using the following equipment: 3925 Router + NM-1T3/E3 + SM-NM-ADPTR (per http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/prod uct_data_sheet09186a008010fba2_ps282_Products_Data_Sheet.html) That part seems pretty straightforward (but please correct me if I am wrong). Can I safely assume that since the carriers proposal doesn't mention ATM that I don't need NM-1A-T3/E3? Then from DMARC to my router I need to use 734 type cable with 75 Ohm BNC connectors (per tread from yesterday). Am I missing anything? Thanks in advance, Jeff Wojciechowski LAN, WAN and Telephony Administrator Midland Paper Company 101 E Palatine Rd Wheeling, IL 60090 * tel: 847.777.2829 * fax: 847.403.6829 e-mail: jeff.wojciechow...@midlandpaper.commailto:jeff.wojciechow...@midland paper.com http://www.midlandpaper.com This electronic mail (including any attachments) may contain information that is privileged, confidential, or otherwise protected from disclosure to anyone other than its intended recipient(s). Any dissemination or use of this electronic mail or its contents (including any attachments) by persons other than the intended recipient(s) is strictly prohibited. If you have received this message in error, please delete the original message in its entirety (including any attachments) and notify us immediately by reply email so that we may correct our internal records. Midland Paper Company accepts no responsibility for any loss or damage from use of this electronic mail, including any damage resulting from a computer virus. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ CONFIDENTIALITY NOTICE: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, copying, use, disclosure, or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Thank you. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] DS3 Nubie
Typically you want to ensure that you can do scrambling with what ever card you use. Typical setup is a card with a built in CSU/DSU and enable kentrox scrambling... Aaron On Fri, Sep 24, 2010 at 16:33, Jeff Kell jeff-k...@utc.edu wrote: On 9/24/2010 4:07 PM, Jay Nakamura wrote: Unless you have fancy DS3 test set, only way to find out is start using it. We saw bunch of errors but telco swore up and down that line was clear. This list clued me into possible hot circuit. Stuck a attenuator in the Rx side and error disappeared. Our old DS3 came with the coax-to-RJ45 balun adapters. Rather than attenuate, we stuck a long Cat5 jumper in the middle, worked just as well. This on a 7200VXR. Jeff ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
