Huh . . . I never had reliability problems with CenturyLink DSL, or at least, nothing like the problems my friends had with Comcast/Xfinity. I only got 3Mbps down, but that was due to the length of my copper loop from the CO.
@@littlemeg137 at least you were hooked to the CO. I was living life at the end of a 8 km run of leased copper out to a remote DSLAM . They finally trenched fiber the last year I lived in that location which was nice.
The 7200 series router was such a legend. Makes me wish I had saved one of each platform I've decommissioned over the years, but of course at the time it was just seen as junk!
You fellas are just silly with this stuff @clabretro @@KJ7BZC Alot of the DSLAMs are ATM based in their terminology, VPI/VCIs for circuits out to the customer modems, like the video.
the crazy part about this basic DSL setup is that it was a groundbreaking improvement over dialup internet. My first DSL in 2003 took me from 30-40Kbps to 768Kbps, which was amazing because call of duty multiplayer was finally playable! I still remember the modem, it was a cisco 678 and we used it with one of those classic stackable linksys router/hub combo boxes and a 802.11b WAP. Of course I connected my PC via wired ethernet and my dad's pc upstairs used wireless. My PC had a 1Ghz Celeron 256mb of RAM, a 40GB HDD and an nvidia MX440 AGP card with 64mb of vram. I played the crap out CoD and quake 3 on that machine.
The 7206VXR router is a lovely piece of kit. We used them both at the main datacenter to take full BGP tables from our carriers back in the day. They don't have the memory to handle that these days but are rock solid, extremely capable and versatile machines. Never had one fail. Which is more than I can say for the GSR-12000's we replaced them with. I suspect the speed issue you're encountering (as well as latency) may have something to do with connection quality rather than equipment capability. That janky fiber connection gives me pause. Check out your interface statistics and see if you've got CRCs or other incrementing errors. I would expect single-digit latency within your network.
Some exchanges didn’t have enough DSLAMs so not everyone could get ADSL, and the telco was not in a hurry to put in extra ones, I read that some businesses would club together and buy a DSLAM for their own use, presumably the telco would install it at the exchange. Another story was that some old exchanges didn’t have enough shelf space for an extra DSLAM.
Very nice, I've always wanted to get me a DSLAM and hook the few Alcatel "turtles" I've kept from my childhood running cheap phone wire in the house - you've realized my dreams!
Fun!!! Great job getting this set up and running. Thanks for sharing. I've been tempted many times to buy old IT infrastructure just for the fun of learning it and trying to make it work, but it's much cheaper to live vicariously through RUclipsrs like you! Thank you!
used to have Cisco720x providing T1 lines to customers and 7204s for full BGP routing tables to peers, man those were years ago. was using 7201s as route reflectors not that long ago still. I miss cisco 6500 platform, I am that old.
For the Amphenol connector breakout, just get yourself a RJ45 patch panel and terminate the other end of the cable to it. If the cable has an Amphenol on the other end and you don't want to cut it, there are 66 blocks with Amphenol connectors on them that you could also use.
7:37 That's probably exactly what it is. If those are in fact singlemode fiber interfaces - and you do indeed have SMF connected to it on a short patch cable - then bear in mind that singlemode transceivers are generally intended for >=10km fiber runs, and can definitely run "too hot" if used over short distances. You might be able to disable or change the alarm threshold via the CLI. Very interesting piece of equipment!
I Love this, DSLAMS have always been Physically interesting to me, I have to deal with these on a regular basis, from a remote standpoint. We deal with Adtran TA 5000 aswell as some Calix E7 Shelves with GPON and occasional VDSL Cards, Very neat Video
That is actually pretty cool. Simpler than I anticipated. Never seen one, was only on a consumer side of them in Poland in early 2000s. 30ms latency is really strangely high. Hope you get all setup nicely.
Yeah the profile that the dsl port was configured for in the 6015 was set for interleaved rather than fast, went back down to sane values once I changed that over.
Whats cool about it is that the customers data streams are all serialised in their modems then effectively piped as parallel multiplexed circuits (via TDM timeslotting on the ATM link) right through to the router where the PPP is stripped and the payloads are finally thrown out into the great melting pot of the internet via whichever outbound route is determined to be best :)
The 32ms latency could be because you are using interleaving on your ADSL interface to your modem...Interleaving will cause latency because it is a way of error correction on the copper loops in a non-perfect environment. You should have the ability to turn off interleaving and use FAST, this option should be on the ADSL interface of the Cisco or in the Cisco ADSL profile you are using. This should almost eliminate your latency between your local network and your DSL setup. The ATM unto itself should not really cause any real latency unless the link is saturated
Just gave that a shot, definitely made a difference! Local pings are now 6ms and to 1.1.1.1 is now around 20. Maybe once I study the protocols and configuration more I'll be able to understand this fully lol
Nice rack ya got there. Thank you for the tangent. "Sherman, set the Wayback Machine" The fiber challenge may be a single-mode/multi-mode mismatch. Do not stare into laser with remaining good eye!
Lol reminds me of the "Big Scary Laser" sign I saw at an HP campus years ago. Luckily my friend warned me about the high output power before I ended up using up one remaining eye
Makes me a bit nervous when thinking about just to have tossed out some of those from a companies inventory during a garbage collect. At least I have them not thrown into the bin, instead left them for free pickup. A very big issue for collectors is, that companies can't sell old stuff without beeing liable for warranty. That makes such stuff really hard to acquire for private people in EU.
I had ADSL in the late 90s when it was first available in my area, 640/256kbit. I moved about a mile away (same CO) and was forced to buy a new modem (675 to 678 for DMT I think) but meant I was able to get 1536/896kbit at the same price. In 2012 centurylink started deploying 40mbit (ADSL2?) which interfered with the older ADSL and didn't offer a choice of ISPs. When I complained about the speed degradation, I got lucky and a graybeard service tech ended up relocating my pair in the bundles through two junction boxes back to the CO, which brought my speeds back up for a while. Eventually speeds started to go back down again, and I gave up and switched to cable 50/10mbit in 2014. It's probably time to switch to 1gbit fiber...
Thank you for a very nice video on a d-slam. They seem to be lacking. Probably because of the price. Like other networking equipment. Some just seems to stay very high in price.
A long time ago in Champagne Urbana Illinois, I was in a PoP on the University of Illinois campus and I met a guy doing research on adsl. He was noticing that the increased current was degrading the POTS lines at the connectors. I have wondered since then if it would eventually cause the lines to need to be replaced, but I am guessing the use of those lines has dropped a lot.
Hi! I was involved in building ADSL Networks in Europe around 2001. Back then we where using Cisco 6260 DSLAMs and I think I still have some old configs laying around. 🙂 Interested in some Feed-Forward about ATM and Cisco DSLAMs? 🙂
I did tech support for dsl with speeds of 256k, early dsl was better than dial-up but just barely. We had two different CPE devices, an Intel pro 2100 pci dsl modem and these lovely little Cisco modems we could remotely manage.
Were the modems Cisco 678s by chance? I've got two of them but I can't find any documentation on how to configure them, and they don't give any sort of output on the console port.
@@KJ7BZCthey were! When trained up we could ssh into them iirc, the customer also had access either via serial or telnet maybe and could see diagnostic data.
I'm jealous of the Radionics receiver. I used to work in a central station and stupidly didn't grab one when they were being shipped off to be scrapped.
Ahhh I feel that pain... Great receivers honestly, of all the others in my collection the Radionics ones have just simply worked the best and been simple to configure. They do come up on Ebay for decent prices sometimes, I've had to get quite a few of them to end up with the one full of linecards and terminator cards in my rack there.
They moved all of the POTS-based panels to a Sur-Gard and it was no end of trouble. I liked working on the equipment but between that and other corner cutting, the station was waking me up 10 nights a month with fleeting error messages.
You may well have to much power on the fiber, especially on older gear, mostly single mode like I think you have which are designed to run long distances and so expect more loss in the fiber. You can get attenuators to drop the signal. Fiber typically has a range for output powerand a range for input power, most modern gear those ranges overlap, for for longer reach gear and for older gear it's typical for there to be a gap between the lowest output and the highest input so you need a minimum path loss between connectors, cables, attenuators, etc.
What a neat box! I feel for what you said at the start very much. I've got two Paradyne Bitstorm 2600 Series 24 Port ADSL/SHDSL DSLAMs sitting on my desk that i've been trying to configure for over half a year. Also got a big stack of old Cisco 1921 series Routers and a crate of SHDSL Quad-Line WICs. Sadly can't seem to get past the previous owners password, ISP it belonged too closed down 8 years ago and the "VxWorks" bootloader Paradyne used in these is heavily modified and very poorly documented. It offers the option pre-boot to set a bootflag that is supposed to bypass the user config and start using defaults, but after trying at least 100 times i've come to the conclusion that this seems to not have been implemented, or the default config has been overwritten by the running config somehow :/
Yeah I've got an Adit 600 channel bank I'm in the same situation with, not so much lack of documentation but it's got a username and password set. All the reset procedures I have came across haven't worked on it, might just have to brute force it.
Ahh yes I think you bought the one I was eyeing for a while. I'll be curious to hear how it works out, I believe that one can supply the actual POTS lines internally as well.
I wonder if someone just put that E1 card in there to fill a slot? E1 is something which you would not use in the US or Canada unless you had something which only supported E1 and then you would only use it on a short-haul link as it is illegal to use on a regulated carrier.
How do T1 / E1 ports work? I used to have a telabs router with like 24 of them. I never got to mess with it much as I used a dodgy crocodile lead directly to the 12v where the psu input went and now it dosen't work anymore but might be able to get more. I would like to make a phone connection go directly over the internet. I know that can be done over voip with a server but its a bit pointless having a voip pbx server just to just forward a line over the internet, especially since that method is incapable of seeing various line stats like line reversal (for call metering over a trunk) and stuff like that. Would I be able to do that with one of these E1/ T1 line things?
Sometimes, using MMF cable between single mode ports provides enough attenuation through scattering, or failing that, one MMF cable coupled to an SMF cable. Or you could just buy a pair of attenuators on eBay. 5 or 6 dB aught to do it.
I don't suppose you'd consider selling the E1 card? I've just bought one of these 6015s but the main NI-2 card is the DS3+T1/E1 IMA version (no fibre ports like yours) and the I/O card is missing 😞
We used to use the 7201 as LNS routers to terminate the sessions on with the ip and qos assigned from freeradius anything with dhcp they router had a local pool and weighted out of the nearest peering / transit
11:28 DSL typically has (with VDSL etc.) max. 200 Mbit/s which isnt bad, but e.g. for me I only get around 110 MBit/s from the ordered 175. But still, DSL had good enough throughput. Fiber is more of a latency thing to me than anything else.
3:17? - I wish I could tell you, but I just barely missed out on learning about Carrier side ADSL/VDSL by like 3 years. I dealt more with T3/T1 and 1:0 DACS's and Channel banks, but I don't believe that's what your looking for. Got lots of hands on experience with SHDSL, similar thing, but different.
I quite like working with T3/T1 links and channel banks too, just haven't really shown it here that much, I've also got a little Adtran thing with a bunch of SHDSL interfaces on it. That'll end up being a project to get working eventually as well, just need to get something for it to talk to first.
The latency is too high for a system with no load, you should have 1-2ms per hop/connection max. The first thing I would check is the janky fiber ATM port for errors.
when you did the ping just making sure cause you most likely checked it yourself did you check that windows wasn't saturating the link with updates or whatnot?
Yeah I said interface as that's how it shows up in the configuration, "interface atm 0/1" and similar. I don't think this does PPPoE either after looking into it further, at any rate PPPoA is working just fine though, so I'll end up sticking with that.
I have never worked on this kit so forgive me if my understanding is a little off. What you are likely running there is SONET between the DSLAM and VXR. SONET has 2 modes, PoS (Packet over SONET, similar to ethernet) and ATM over SONET. You are then running PPP on top of this effectively L2 protocol.
Honestly the DSLAM configuration isn't that complicated, it's really just straight ATM connections between the trunk and the ports. It was just a matter of doing "atm pvc 8 35 interface atm 0/1 1 35" under the atm 1/1 interface. Connecting vpi 8/vci 35 on the dsl port to vpi 1/vci 35 on the trunk port. Someday I'll probably make a video on configuring it all.
Youre doing a better job operating this DSLAM that Qwest/CenturyLink ever did....
Huh . . . I never had reliability problems with CenturyLink DSL, or at least, nothing like the problems my friends had with Comcast/Xfinity. I only got 3Mbps down, but that was due to the length of my copper loop from the CO.
@@littlemeg137 at least you were hooked to the CO. I was living life at the end of a 8 km run of leased copper out to a remote DSLAM . They finally trenched fiber the last year I lived in that location which was nice.
The 7200 series router was such a legend. Makes me wish I had saved one of each platform I've decommissioned over the years, but of course at the time it was just seen as junk!
nice video! and thanks for the shoutout, that was a pleasant surprise haha. I might cover my VXR pretty soon as well.
Cool seeing you here, I'll definitely be watching when you make a video on it!
You fellas are just silly with this stuff @clabretro @@KJ7BZC Alot of the DSLAMs are ATM based in their terminology, VPI/VCIs for circuits out to the customer modems, like the video.
Be careful with the OC-3 interfaces, if you run too high optical power to the Rx side, you can damage the Rx
so how long until the serialport and clabretro ISP collab hm? I will follow you around the internet until it happens
This is a crossover Ive never expected
the crazy part about this basic DSL setup is that it was a groundbreaking improvement over dialup internet. My first DSL in 2003 took me from 30-40Kbps to 768Kbps, which was amazing because call of duty multiplayer was finally playable! I still remember the modem, it was a cisco 678 and we used it with one of those classic stackable linksys router/hub combo boxes and a 802.11b WAP. Of course I connected my PC via wired ethernet and my dad's pc upstairs used wireless. My PC had a 1Ghz Celeron 256mb of RAM, a 40GB HDD and an nvidia MX440 AGP card with 64mb of vram. I played the crap out CoD and quake 3 on that machine.
It's insane how fast this stuff improves, I remember having a 5Mbps upload speed and it doesn't feel like it was that long ago at all...
Wow all those stats were impressive then but looking at them now, how far we've come
The 7206VXR router is a lovely piece of kit. We used them both at the main datacenter to take full BGP tables from our carriers back in the day. They don't have the memory to handle that these days but are rock solid, extremely capable and versatile machines. Never had one fail. Which is more than I can say for the GSR-12000's we replaced them with. I suspect the speed issue you're encountering (as well as latency) may have something to do with connection quality rather than equipment capability. That janky fiber connection gives me pause. Check out your interface statistics and see if you've got CRCs or other incrementing errors. I would expect single-digit latency within your network.
Some exchanges didn’t have enough DSLAMs so not everyone could get ADSL, and the telco was not in a hurry to put in extra ones, I read that some businesses would club together and buy a DSLAM for their own use, presumably the telco would install it at the exchange.
Another story was that some old exchanges didn’t have enough shelf space for an extra DSLAM.
Very nice, I've always wanted to get me a DSLAM and hook the few Alcatel "turtles" I've kept from my childhood running cheap phone wire in the house - you've realized my dreams!
Always wondered how the CO equipment works so I'm loving this. Hope we have more on this topic coming.
Shocking to think that there are probably still people out there on ancient slow equipment like this...
AT&T: 5 Mbps or 5 Gbps, no in-between.
Fun!!! Great job getting this set up and running. Thanks for sharing. I've been tempted many times to buy old IT infrastructure just for the fun of learning it and trying to make it work, but it's much cheaper to live vicariously through RUclipsrs like you! Thank you!
used to have Cisco720x providing T1 lines to customers and 7204s for full BGP routing tables to peers, man those were years ago. was using 7201s as route reflectors not that long ago still. I miss cisco 6500 platform, I am that old.
I still operate four 6509's. Not proud of it but they are moving serious traffic (50gbps+).
For the Amphenol connector breakout, just get yourself a RJ45 patch panel and terminate the other end of the cable to it. If the cable has an Amphenol on the other end and you don't want to cut it, there are 66 blocks with Amphenol connectors on them that you could also use.
Ah the stuff in that big AT&T box down the street
lol thats what caused the outage them upgraded and tossing out their old equipment
7:37 That's probably exactly what it is. If those are in fact singlemode fiber interfaces - and you do indeed have SMF connected to it on a short patch cable - then bear in mind that singlemode transceivers are generally intended for >=10km fiber runs, and can definitely run "too hot" if used over short distances. You might be able to disable or change the alarm threshold via the CLI.
Very interesting piece of equipment!
Attenuators can be had for fairly cheap second hand, fine for home lab use.
Yep I got attenuators for it, we'll see if that resolves the problem next time I have it online.
maybe a setting to change the Tx level to dial it down a bit?
I Love this, DSLAMS have always been Physically interesting to me, I have to deal with these on a regular basis, from a remote standpoint. We deal with Adtran TA 5000 aswell as some Calix E7 Shelves with GPON and occasional VDSL Cards, Very neat Video
Would love to get a gFast DSLAM, really fascinated how much speed that tech can get over phone wiring
Dang! I always wanted to play with one of these, RUclips recommended to me out of nowhere. Awesome bit of history!
Fun to see this old Cisco stuff
That is actually pretty cool. Simpler than I anticipated. Never seen one, was only on a consumer side of them in Poland in early 2000s. 30ms latency is really strangely high. Hope you get all setup nicely.
Yeah the profile that the dsl port was configured for in the 6015 was set for interleaved rather than fast, went back down to sane values once I changed that over.
Whats cool about it is that the customers data streams are all serialised in their modems then effectively piped as parallel multiplexed circuits (via TDM timeslotting on the ATM link) right through to the router where the PPP is stripped and the payloads are finally thrown out into the great melting pot of the internet via whichever outbound route is determined to be best :)
As far I know, those 10Mb ports are OOB/Mgmt only. Used to poke onto those boxes a loooong time ago.
Nice setup. 7200s were really solid. Still a great router
Hell yah! I’ve been looking for a DSLAM or a CMTS. Maybe one day.
CMTS is next on the list, of course they're more expensive alongside all the other equipment to get a connection up though.
Awesome! I love older Cisco stuff
Great video! Looking forward to the next one!
The 32ms latency could be because you are using interleaving on your ADSL interface to your modem...Interleaving will cause latency because it is a way of error correction on the copper loops in a non-perfect environment. You should have the ability to turn off interleaving and use FAST, this option should be on the ADSL interface of the Cisco or in the Cisco ADSL profile you are using. This should almost eliminate your latency between your local network and your DSL setup. The ATM unto itself should not really cause any real latency unless the link is saturated
Just gave that a shot, definitely made a difference! Local pings are now 6ms and to 1.1.1.1 is now around 20. Maybe once I study the protocols and configuration more I'll be able to understand this fully lol
Nice rack ya got there. Thank you for the tangent.
"Sherman, set the Wayback Machine"
The fiber challenge may be a single-mode/multi-mode mismatch.
Do not stare into laser with remaining good eye!
Lol reminds me of the "Big Scary Laser" sign I saw at an HP campus years ago. Luckily my friend warned me about the high output power before I ended up using up one remaining eye
Fantastic to see this. Just to note on your ping, make sure the dsl profile on the DSLAM is configured for Fast Path rather than Interleaved.
Yep I ended up changing it to fast, definitely fixed the issue there.
Makes me a bit nervous when thinking about just to have tossed out some of those from a companies inventory during a garbage collect. At least I have them not thrown into the bin, instead left them for free pickup. A very big issue for collectors is, that companies can't sell old stuff without beeing liable for warranty. That makes such stuff really hard to acquire for private people in EU.
I had ADSL in the late 90s when it was first available in my area, 640/256kbit. I moved about a mile away (same CO) and was forced to buy a new modem (675 to 678 for DMT I think) but meant I was able to get 1536/896kbit at the same price. In 2012 centurylink started deploying 40mbit (ADSL2?) which interfered with the older ADSL and didn't offer a choice of ISPs. When I complained about the speed degradation, I got lucky and a graybeard service tech ended up relocating my pair in the bundles through two junction boxes back to the CO, which brought my speeds back up for a while.
Eventually speeds started to go back down again, and I gave up and switched to cable 50/10mbit in 2014.
It's probably time to switch to 1gbit fiber...
oh hell yeah this is great to watch. keep it up!!
Just came across this.. flashback.. guessing you're configuring individual VC interfaces for the downstream modems. oh this is awsome! Koodos.
Awesome setup, thanks for sharing!
Thank you for a very nice video on a d-slam. They seem to be lacking. Probably because of the price. Like other networking equipment. Some just seems to stay very high in price.
A long time ago in Champagne Urbana Illinois, I was in a PoP on the University of Illinois campus and I met a guy doing research on adsl. He was noticing that the increased current was degrading the POTS lines at the connectors. I have wondered since then if it would eventually cause the lines to need to be replaced, but I am guessing the use of those lines has dropped a lot.
Hi!
I was involved in building ADSL Networks in Europe around 2001.
Back then we where using Cisco 6260 DSLAMs and I think I still have some old configs laying around. 🙂
Interested in some Feed-Forward about ATM and Cisco DSLAMs? 🙂
I don't remember if I have used one of those or not. We only had two profiles, fast and interleaved. ATM, virtual circuits everywhere.
Run it through a box of ethernet cable to add like 500-100 feet to the loop length
I did tech support for dsl with speeds of 256k, early dsl was better than dial-up but just barely. We had two different CPE devices, an Intel pro 2100 pci dsl modem and these lovely little Cisco modems we could remotely manage.
Were the modems Cisco 678s by chance? I've got two of them but I can't find any documentation on how to configure them, and they don't give any sort of output on the console port.
@@KJ7BZCthey were! When trained up we could ssh into them iirc, the customer also had access either via serial or telnet maybe and could see diagnostic data.
@@KJ7BZCare you using a roll-over cable?
@@JohnKiniston Yeah using a standard Cisco one, do those modems take a different pinout?
@@KJ7BZC yes check the 678 manual for the pin out, I believe you can get away with just pins 4-6 on the rj45
I'm jealous of the Radionics receiver. I used to work in a central station and stupidly didn't grab one when they were being shipped off to be scrapped.
Ahhh I feel that pain... Great receivers honestly, of all the others in my collection the Radionics ones have just simply worked the best and been simple to configure. They do come up on Ebay for decent prices sometimes, I've had to get quite a few of them to end up with the one full of linecards and terminator cards in my rack there.
They moved all of the POTS-based panels to a Sur-Gard and it was no end of trouble. I liked working on the equipment but between that and other corner cutting, the station was waking me up 10 nights a month with fleeting error messages.
You may well have to much power on the fiber, especially on older gear, mostly single mode like I think you have which are designed to run long distances and so expect more loss in the fiber. You can get attenuators to drop the signal. Fiber typically has a range for output powerand a range for input power, most modern gear those ranges overlap, for for longer reach gear and for older gear it's typical for there to be a gap between the lowest output and the highest input so you need a minimum path loss between connectors, cables, attenuators, etc.
Yeah I ended up getting attenuators for it, I need to glue one of the fans in the 7200 but when I test it next we'll see if it works out.
Nice DSLAM! subscribed
Thank you! Your ISP series has been great to watch and has got me interested in this stuff again.
hows the phone line going from the dslam to the adsl modem
It's just a straight RJ11 phone cable between the modem and that adaptor into the DSLAM, nothing fancy or anything.
@@KJ7BZC in an actual telephone exchange how would it go from the dslam to the mdf to then the customer?
Unpopular opinion but darn those old consumer routers even looked nice.
What a neat box! I feel for what you said at the start very much. I've got two Paradyne Bitstorm 2600 Series 24 Port ADSL/SHDSL DSLAMs sitting on my desk that i've been trying to configure for over half a year. Also got a big stack of old Cisco 1921 series Routers and a crate of SHDSL Quad-Line WICs.
Sadly can't seem to get past the previous owners password, ISP it belonged too closed down 8 years ago and the "VxWorks" bootloader Paradyne used in these is heavily modified and very poorly documented. It offers the option pre-boot to set a bootflag that is supposed to bypass the user config and start using defaults, but after trying at least 100 times i've come to the conclusion that this seems to not have been implemented, or the default config has been overwritten by the running config somehow :/
Yeah I've got an Adit 600 channel bank I'm in the same situation with, not so much lack of documentation but it's got a username and password set. All the reset procedures I have came across haven't worked on it, might just have to brute force it.
Awesome! Just ordered a zyxel ies 1000 with a 12 port adsl2+ card in it to mess around with.
Ahh yes I think you bought the one I was eyeing for a while. I'll be curious to hear how it works out, I believe that one can supply the actual POTS lines internally as well.
Nice setup! Connect an Apache server to it and host a website!
Great video! Very interesting content.
I wonder if someone just put that E1 card in there to fill a slot? E1 is something which you would not use in the US or Canada unless you had something which only supported E1 and then you would only use it on a short-haul link as it is illegal to use on a regulated carrier.
wow nice... I'd like to see how you went about configuring it from the dslam side of it ...
I'll probably make a video on it sometime, on the DSLAM side it was actually just one ATM connection between the dsl port and the trunk port.
How do T1 / E1 ports work? I used to have a telabs router with like 24 of them. I never got to mess with it much as I used a dodgy crocodile lead directly to the 12v where the psu input went and now it dosen't work anymore but might be able to get more. I would like to make a phone connection go directly over the internet. I know that can be done over voip with a server but its a bit pointless having a voip pbx server just to just forward a line over the internet, especially since that method is incapable of seeing various line stats like line reversal (for call metering over a trunk) and stuff like that. Would I be able to do that with one of these E1/ T1 line things?
I think you would like the Motorola 2210 dsl modem. I use to support those back in the day.
Might just have a similar one laying around somewhere, I'll have to take a look.
Sometimes, using MMF cable between single mode ports provides enough attenuation through scattering, or failing that, one MMF cable coupled to an SMF cable. Or you could just buy a pair of attenuators on eBay. 5 or 6 dB aught to do it.
I don't suppose you'd consider selling the E1 card? I've just bought one of these 6015s but the main NI-2 card is the DS3+T1/E1 IMA version (no fibre ports like yours) and the I/O card is missing 😞
Can you setup authentication of your modem by MAC or some other hardware identification?
7:24 Been far too long since I've been in any of those boxes. There is a very slim chance you can see the RX, and maybe the TX power on those modals.
very cool project!
We used to use the 7201 as LNS routers to terminate the sessions on with the ip and qos assigned from freeradius anything with dhcp they router had a local pool and weighted out of the nearest peering / transit
What is a lns router?
11:28 DSL typically has (with VDSL etc.) max. 200 Mbit/s which isnt bad, but e.g. for me I only get around 110 MBit/s from the ordered 175. But still, DSL had good enough throughput. Fiber is more of a latency thing to me than anything else.
That only really applies in cities, where you are close to the dslam. In rural areas you usually get around 20 or below mbps
3:17? - I wish I could tell you, but I just barely missed out on learning about Carrier side ADSL/VDSL by like 3 years. I dealt more with T3/T1 and 1:0 DACS's and Channel banks, but I don't believe that's what your looking for. Got lots of hands on experience with SHDSL, similar thing, but different.
I quite like working with T3/T1 links and channel banks too, just haven't really shown it here that much, I've also got a little Adtran thing with a bunch of SHDSL interfaces on it. That'll end up being a project to get working eventually as well, just need to get something for it to talk to first.
@KJBZC LOVE YOU SERVER RACK WHAT TYPE IS IT 🖥
Thanks for history lane for me :)
The latency is too high for a system with no load, you should have 1-2ms per hop/connection max. The first thing I would check is the janky fiber ATM port for errors.
Can I use an AT&T Arris gateway on one of these? I managed to find one for sale at a restore for some odd reason.
It depends on what the modem supports, I haven't had any issues getting any ADSL capable modems to connect to it.
Next get some ATM equipment or old SONET hardware lol.
also wtf that DSL modem interface page theme is barely any different from my CenturyLink gigabit fiber SmartNID!
so cool aways wanted to do this also 👍
very cool
when you did the ping
just making sure cause you most likely checked it yourself
did you check that windows wasn't saturating the link with updates or whatnot?
I did check that lol, it was saturating it initially but I let it figure it's life out before I started recording...
cool vid
wait what, the NPE slot on the 7206 is empty?
This one has the NPE-G1 in it, all the I/O including the console/aux port is on the back unlike the older ones.
Love it, but that clamp on the fiber has to go (your killing all the fiber people!!!!)
Ok ok ok but when xgspon dslam?
That's cool
haha nice video! What year is it!
Strictly speaking ATM is not an interface, it's a protocol.
Don't think it the stuff you have would do PPPoE
Yeah I said interface as that's how it shows up in the configuration, "interface atm 0/1" and similar. I don't think this does PPPoE either after looking into it further, at any rate PPPoA is working just fine though, so I'll end up sticking with that.
I have never worked on this kit so forgive me if my understanding is a little off. What you are likely running there is SONET between the DSLAM and VXR. SONET has 2 modes, PoS (Packet over SONET, similar to ethernet) and ATM over SONET. You are then running PPP on top of this effectively L2 protocol.
Everyone has seen the _modem_ configuration - we all had crap like it. (and some still do.) Show the DSLAM sauce!
Honestly the DSLAM configuration isn't that complicated, it's really just straight ATM connections between the trunk and the ports. It was just a matter of doing "atm pvc 8 35 interface atm 0/1 1 35" under the atm 1/1 interface. Connecting vpi 8/vci 35 on the dsl port to vpi 1/vci 35 on the trunk port. Someday I'll probably make a video on configuring it all.
@@KJ7BZC It's not about "complicated". It's the part few ever get to see. Every one has a modem, no one has a DSLAM.
Here via clabretro.
I wouldn’t want to pay your electric bill…
9:32 nah just use cgnat ontop of cgnat from your carrier 😂
poor customers still have ADSL??
It's a D-SUB connector ffs.
It's not, it's Centronics.
12:48 most routers have a DNS relay (not a real recursive resolver) to the ISP DNS server (or whatever you have configured it for)
Yuck ATM... crap