Re: Comcast looking glass router

a1 -m hmac-sha1 Comcast Backbone Route Server This route server is provided by Comcast National Engineering to provide visibility into the Internet routing table from the perspective of Comcast's network. [[ SNIP ]]

Re: Comcast looking glass router

Quick update: I just spoke with someone at Comcast, and they let me know they have identified a problem with the authentication and are working to resolve it. W On Thu, Jan 09, 2025 at 1:11 PM, Warren Kumari wrote: > On Thu, Jan 09, 2025 at 10:41 AM, Christopher Morrow com> wrote: &

Re: Comcast looking glass router

On Thu, Jan 09, 2025 at 10:41 AM, Christopher Morrow < morrowc.li...@gmail.com> wrote: > On Thu, Jan 9, 2025 at 9:29 AM Warren Kumari wrote: > > On Wed, Jan 08, 2025 at 3:35 PM, Paulo J Amaral wrote: > > Hi, hoping someone here from Comcast can help me. I need to be ab

Re: Comcast looking glass router

On Thu, Jan 9, 2025 at 9:29 AM Warren Kumari wrote: > > > > > > On Wed, Jan 08, 2025 at 3:35 PM, Paulo J Amaral wrote: >> >> Hi, hoping someone here from Comcast can help me. I need to be able to login >> Comcast Looking Glass router in NY to check on

Re: Comcast looking glass router

On Wed, Jan 08, 2025 at 3:35 PM, Paulo J Amaral wrote: > Hi, hoping someone here from Comcast can help me. I need to be able to > login Comcast Looking Glass router in NY to check on some route advertising > but the username and password that was previously working for the LG no >

Re: Comcast looking glass router

BGP.tools super LG any help? They probably have a lot of feeder sessions sitting behind Comcast which could accomplish the mission? On Wed, Jan 8, 2025, 12:42 PM Paulo J Amaral via NANOG wrote: > Hi, hoping someone here from Comcast can help me. I need to be able to > login Comcast L

Comcast looking glass router

Hi, hoping someone here from Comcast can help me. I need to be able to login Comcast Looking Glass router in NY to check on some route advertising but the username and password that was previously working for the LG no longer seems to work. Host: route-server.newyork.ny.ibone.comcast.net

Comcast issues in Annapolis area

Hi - Any Comcast network engineers around? One of the sites I help manage has been having a lot of intermittent internet issues, using Comcast Business. I believe I have narrowed it down to the hop before this site: c-73-133-7-238.hsd1.md.comcast.net The path went down as I was trying to ping

Re: Unable to Reach m.root-servers.net from Comcast

8/26/24 03:54, Thomas Wodarek wrote: I'm getting similar results on residential Comcast up here in Michigan, US (Comcast's Heartland region). Checking from a Google Cloud vm in Iowa, US, I was able to reach m.root-servers.net <http://m.root-servers.net> via both v4 and v6, but it lo

Re: Unable to Reach m.root-servers.net from Comcast

Yes, definitely Comcast-wide. And I should have realized that was almost certainly true earlier. I did look at the Comcast looking glass listed at PeeringDB and even saw the problem, but didn't put 2-and-2 together at the time. All I saw was that the path for the IPv4 prefix for m

Re: Unable to Reach m.root-servers.net from Comcast

Same here in East Central Illinois. v4 fails; v6 works. Trace stops in Chicago. On 8/26/24 03:54, Thomas Wodarek wrote: I'm getting similar results on residential Comcast up here in Michigan, US (Comcast's Heartland region).  Checking from a Google Cloud vm in Iowa, US, I was abl

Re: Unable to Reach m.root-servers.net from Comcast

I'm getting similar results on residential Comcast up here in Michigan, US (Comcast's Heartland region). Checking from a Google Cloud vm in Iowa, US, I was able to reach m.root-servers.net via both v4 and v6, but it looks like it's routing to the Sao Paulo cluster in both cases (l

Re: Unable to Reach m.root-servers.net from Comcast

I would be opening a ticket with comcast. This appears to be off charter as it is a individual home user issue. > On 26 Aug 2024, at 10:15, Crist Clark wrote: > > Debated whether to bring this up on the OARC DNS Ops list or NANOG. Seem more > of a network-y thing. > > I

Unable to Reach m.root-servers.net from Comcast

Debated whether to bring this up on the OARC DNS Ops list or NANOG. Seem more of a network-y thing. I happened to notice that I cannot query or ping m.root-servers.net's IPv4 address from my home Comcast connection (SF Bay Area). IPv6 works. All of the other root servers are reachable via

Re: comcast v4 in pnw

kinda summary: comcast and cogent/sprint very helpful. likely cause a misconfig in cogent norcal when trying to route around a power outage in seattle. fwiw, HE and IIJ IPv6 transit (tyvm) in seattle allowed us to keep working through the outage. randy

Re: comcast v4 in pnw

John is no longer at the company - but Tony (cc'd) may be able to assist off-list. On 5/31/24, 14:58, "NANOG on behalf of Randy Bush" mailto:cable.comcast@nanog.org> on behalf of ra...@psg.com <mailto:ra...@psg.com>> wrote: a bunch of us comcast soho fol

comcast v4 in pnw

a bunch of us comcast soho folk, and monitoring gear, are seeing v4 breakage in orygon and maybe washington but only for seattle destinations. v6 works. johnb, is comcast going v6-only? :) ryuu.rg.net:/Users/randy> ping r0.iad PING r0.iad.rg.net (198.180.150.120): 56 data bytes 64 bytes f

Comcast Voice Routing Contact?

Apologies for cross-post - no luck using the VoiceOps list. Sent to VO 04/10: Hello, we have a fun issue we are attempting to troubleshoot with an end user having problems reaching local businesses utilizing Comcast (unsure if the end product is POTS over Coax or VoiceEdge). SPID: Comcast IP

Re: Out of ideas - Comcast issue BGP peering with Tata

Depends on your definition of “RIR holder ship”. ALL (legitimate) prefixes are delegated/registered by an RIR at some level. However, some of them are non-contract and/or non-paid. APNIC is, I believe, the only RIR that eliminated all non-contract registrants. I’m not sure of the exact situatio

Re: Out of ideas - Comcast issue BGP peering with Tata

Hi friend, Any idea how many segments are in routing table which are still not part of RIR holder ship ? Regards, Gaurav Kansal > On 22-Nov-2023, at 07:40, nanog@nanog.org wrote: > >> >>> Special note, deprecation of non-authoritative registries >>> >>> Please note that 'route' and 'route6'

Re: Out of ideas - Comcast issue BGP peering with Tata

> >> Special note, deprecation of non-authoritative registries >> >> Please note that 'route' and 'route6' objects created after 2023-Aug-15 in >> non-authoritative registries like RADB, NTTCOM, ALTDB won't be processed. It >> is recommended to create RPKI ROA objects instead. In rare cases if

Re: Out of ideas - Comcast issue BGP peering with Tata

On Fri, 17 Nov 2023 at 15:17, Jamie Chetta via NANOG wrote: > > I am out of ideas on how to get this fixed. Long story short I am a customer > of Comcast and am advertising my own /24 block I own through them. Comcast > of course BGP peers with multiple ISPs. Other ISPs are

Re: Out of ideas - Comcast issue BGP peering with Tata

Is your IRR and RPKI roas all squared away? On Fri, Nov 17, 2023, 8:12 AM Diego Eduardo Zorrilla Fierro (diefierr) via NANOG wrote: > Im not sure, just thinking, maybe is a thing with the /24. Is it possible > to you get from Comcast maybe a /22 ?? > > > > Regards >

Re: Out of ideas - Comcast issue BGP peering with Tata

Im not sure, just thinking, maybe is a thing with the /24. Is it possible to you get from Comcast maybe a /22 ?? Regards Diego From: NANOG on behalf of Mike Hammett Date: Friday, November 17, 2023 at 09:51 To: Jamie Chetta Cc: nanog@nanog.org Subject: Re: Out of ideas - Comcast issue BGP

Re: Out of ideas - Comcast issue BGP peering with Tata

> > Comcast has to be the one contacting them > This is the correct answer. It's pretty straight forward ; Comcast needs to get with Tata, say "hey, I'm announcing prefix FOO to you, your LGs don't look like you're accepting it. Can we figure out why?"

Re: Out of ideas - Comcast issue BGP peering with Tata

quot; To: nanog@nanog.org Sent: Friday, November 17, 2023 8:17:42 AM Subject: Out of ideas - Comcast issue BGP peering with Tata I am out of ideas on how to get this fixed. Long story short I am a customer of Comcast and am advertising my own /24 block I own through them. Comcast of course

Re: Out of ideas - Comcast issue BGP peering with Tata

I many years ago worked at Tata, responsible for their BGP, they are giving you the right answer, Comcast has to be the one contacting them, as then both sides can see what is being sent and received and can resolve this issue. -jim On Fri, Nov 17, 2023 at 10:04 AM Jamie Chetta via NANOG wrote

Out of ideas - Comcast issue BGP peering with Tata

I am out of ideas on how to get this fixed. Long story short I am a customer of Comcast and am advertising my own /24 block I own through them. Comcast of course BGP peers with multiple ISPs. Other ISPs are accepting my prefix just fine, except Tata. This is causing random destinations to

Re: Comcast contact sought

It's a fraud tactic as far as I'm concerned, they markup internet only into the hundreds of dollars a month, but if you bundle with security edge it's very affordable, except after 12-36 months now it is even more expensive than if you had just let them screw you initially. On Mon, Sep 25, 2023, 6

Re: Comcast contact sought

> I have been trying to assist someone with a business connection that runs a > server farm. Recently the business cable modem started to short-stop port 53 > for UDP and TCP. Apparently, a transparent DNS proxy somehow got activated > and all outbound traffic to any IPv4 or IPv6 address is in

Re: Comcast contact sought

I've been down this road many times before. You need to find your local account manager/sales rep and ask them to remove the coding from the account. This may result in losing the bundle price, so pair it with a different service like Comcast Connection Pro or something like that. Should ke

Re: Comcast contact sought

providing less service. Security Edge is horrible? Disabling it costs more. Don't need a phone number so Comcast can pad their numbers to the FCC? It'll cost you more. Same with not needing cable TV for your business. It costs you more because Comcast can't use you as a bargaini

Comcast contact sought

I am looking for a senior contact at Comcast. I have been trying to assist someone with a business connection that runs a server farm.  Recently the business cable modem started to short-stop port 53 for UDP and TCP.  Apparently, a transparent DNS proxy somehow got activated and all outbound

L4S Trials (Comcast) & Inter-Domain Marking

FYI on two related items of interest to this list. 1 – If you are a Comcast customer, consider volunteering for our upcoming low latency networking trials (using IETF L4S). See my blog post at https://corporate.comcast.com/stories/comcast-kicks-off-industrys-first-low-latency-docsis-field-trials

Re: Test Dual Queue L4S (if you are on Comcast)

seems to be boilerplate. > > > > From: "Livingood, Jason" > Date: Friday, June 16, 2023 at 15:46 > To: "Eric C. Miller" , nanog > Subject: Re: [EXTERNAL] RE: Test Dual Queue L4S (if you are on Comcast) > > > > We’re working to fix that. Sorry! >

RE: Test Dual Queue L4S (if you are on Comcast)

In the meantime please just select some unrelated industry on the form. We don’t care – it seems to be boilerplate. From: "Livingood, Jason" Date: Friday, June 16, 2023 at 15:46 To: "Eric C. Miller" , nanog Subject: Re: [EXTERNAL] RE: Test Dual Queue L4S (if you are on Com

Re: [EXTERNAL] RE: Test Dual Queue L4S (if you are on Comcast)

We’re working to fix that. Sorry! From: "Eric C. Miller" Date: Friday, June 16, 2023 at 15:18 To: Jason Livingood , nanog Subject: [EXTERNAL] RE: Test Dual Queue L4S (if you are on Comcast) FYI, when trying to sign up, it tells me that my input isn’t required because I work in

RE: Test Dual Queue L4S (if you are on Comcast)

FYI, when trying to sign up, it tells me that my input isn’t required because I work in the telco industry. Eric From: NANOG On Behalf Of Livingood, Jason via NANOG Sent: Friday, June 16, 2023 2:30 PM To: nanog Subject: Test Dual Queue L4S (if you are on Comcast) FYI that today we (Comcast

Test Dual Queue L4S (if you are on Comcast)

FYI that today we (Comcast) have announced the start of low latency networking (L4S) field trials. If you are a customer and would like to volunteer, please visit this page<https://www.xfinityinsightscommunity.com/register/start/f4f1ea42-247c-44f1-bea0-c2d7178cfe00>. For more info, ther

RE: Comcast Business Account Website Broken

riginal Message- From: NANOG On Behalf Of Matt Hoppes Sent: Wednesday, June 14, 2023 1:21 PM To: North American Network Operators' Group Subject: Comcast Business Account Website Broken This Message originates from outside Bryant Bank. Please use caution when opening this correspond

Re: Comcast Business Account Website Broken

e site and ended up creating too much data in one or more cookies. -A On Wed Jun 14, 2023, 06:20 PM GMT, Matt Hoppes <mailto:mattli...@rivervalleyinternet.net> wrote: > For the last two weeks we have been unable to pay any bills on the > business Comcast website. > > Clicking on

Comcast Business Account Website Broken

For the last two weeks we have been unable to pay any bills on the business Comcast website. Clicking on any billing link results in: 400 Bad Request Request Header Or Cookie Too Large This is going to the URL of: https://business.comcast.com/oauth/oauth2/authorize?client_id=comcast-business

Looking for sales from comcast

Hello guys, Our company is looking for a way to get IP Transit from comcast, can someone give me the email of their sales team? Also, does anyone know about whether AT-Tand T-Mobile provide IP Transit or not? Best wishes,

Monday's N87 Keynote will ft. Elad Nafshi from Comcast + Road Less Traveled: Alex Latzko + More

*Monday's Keynote will ft. Elad Nafshi from Comcast* *Presenting "The Future is Now: Delivering the Next Generation Brilliant Network"* Elad Nafshi will share how 10G network technologies are evolving connected experiences in real-time, even as they continue to get smarter, faster

Re: Comcast circuit guru lurking?

if it's an EPL they default to 2000 mtu max, if you want jumbo frames they must be requested with your sales person On Wed, Dec 14, 2022 at 10:39 AM Bryan Holloway wrote: > Looking for some help or direction with MTU issues on a recently > installed point-to-point circuit. > > Attempts to rectif

Comcast circuit guru lurking?

Looking for some help or direction with MTU issues on a recently installed point-to-point circuit. Attempts to rectify have involved front-line PMs/folks who don't grok the problem. Please contact me off-list, thank you!! - bryan

RE: Looking for contact within Comcast Xfinity

Michael, Please contact me off-list and I'll see if I can be of any help. -- Alex Brotman Sr. Engineer, Anti-Abuse & Messaging Policy Comcast > -Original Message- > From: NANOG On > Behalf Of Michael Brown > Sent: Monday, August 22, 2022 4:18 PM > To: North Am

Re: Looking for contact within Comcast Xfinity

Comcast also molests SIP. From: NANOG on behalf of "Aaron C. de Bruyn via NANOG" Reply-To: "Aaron C. de Bruyn" Date: Tuesday, August 23, 2022 at 7:47 AM To: Michael Brown Cc: North American Network Operators' Group Subject: Re: Looking for contact within Comcast X

Re: Looking for contact within Comcast Xfinity

ote: > If anyone from Comcast Xfinity is on this list, can you please reach out > to me? > > We're getting increased reports of xFi Advanced Security customers being > unable to access hosted sites and attempting to open tickets has had no > success. > > Thanks, > > Michael Brown > >

Looking for contact within Comcast Xfinity

If anyone from Comcast Xfinity is on this list, can you please reach out to me? We're getting increased reports of xFi Advanced Security customers being unable to access hosted sites and attempting to open tickets has had no success. Thanks, Michael Brown

Re: Reporting Comcast outside plant issues?

m/channel/UCXSdfxQv7SpoRQYNyLwntZg> ------ > From: "Jay Hennigan" > To: nanog@nanog.org > Sent: Monday, June 27, 2022 12:07:16 PM > Subject: Re: Reporting Comcast outside plant issues? > > On 6/26/22 19:27, Justin Streiner wrote: > &

Re: Reporting Comcast outside plant issues?

WISP - Original Message - From: "Jay Hennigan" To: nanog@nanog.org Sent: Monday, June 27, 2022 12:07:16 PM Subject: Re: Reporting Comcast outside plant issues? On 6/26/22 19:27, Justin Streiner wrote: > Does anyone here have a contact at Comcast for reporting outside plant

Re: Reporting Comcast outside plant issues?

On 6/26/22 19:27, Justin Streiner wrote: Does anyone here have a contact at Comcast for reporting outside plant issues that are not (at the moment) service-affecting? I am not a Comcast customer, and they make it nearly impossible for non-customers to reach them unless you're signing u

Re: Reporting Comcast outside plant issues?

Thank you to everyone who responded off-list. I was able to get a repair ticket opened with Comcast and they will be dispatching a crew to take a look. Thank you jms On Sun, Jun 26, 2022 at 10:27 PM Justin Streiner wrote: > Does anyone here have a contact at Comcast for reporting outs

Re: Reporting Comcast outside plant issues?

You have to find the local "Damage Prevention" guy. You might call the county engineer office and see what they have for permits (for Comcast) in the area and call that guy. You might also find out the owner of the poles, often the power company but maybe the phone company. On Sun, Ju

Reporting Comcast outside plant issues?

Does anyone here have a contact at Comcast for reporting outside plant issues that are not (at the moment) service-affecting? I am not a Comcast customer, and they make it nearly impossible for non-customers to reach them unless you're signing up for service. There is a long coax span (

Re: Comcast Rolling Outages

idwest Internet Exchange The Brothers WISP - Original Message - From: "Glenn Kelley" To: "Mike Hammett" Cc: "North American Network Operators' Group" Sent: Thursday, June 16, 2022 9:46:00 AM Subject: Re: Comcast Rolling Outages Mike - There are a

Re: Comcast Rolling Outages

Mike - There are a lot of rolling power outages. Thus the reason for the overheating most likely as gear, while on battery backup, generally lacks the cooling capacity. Horizon, Comcast, Wow/Breezeway apparently are doing the same across the Columbus Marketing in Ohio as well. *Glenn S. Kelley

Re: Comcast Rolling Outages

: "Jay Hennigan" To: nanog@nanog.org Sent: Wednesday, June 15, 2022 4:20:40 PM Subject: Re: Comcast Rolling Outages On 6/15/22 14:03, Mike Hammett wrote: > I recently saw this on Facebook: > > BREAKING: Some Xfinity/Comcast users are getting a message in the > Chic

Re: Comcast Rolling Outages

On 6/15/22 14:03, Mike Hammett wrote: I recently saw this on Facebook: BREAKING: Some Xfinity/Comcast users are getting a message in the Chicago and Springfield, Illinois markets that they are shutting down Internet service until 11:15 PM this evening due to overheating equipment

Comcast Rolling Outages

I recently saw this on Facebook: BREAKING: Some Xfinity/Comcast users are getting a message in the Chicago and Springfield, Illinois markets that they are shutting down Internet service until 11:15 PM this evening due to overheating equipment... Update: some areas are doing rolling

Re: Comcast Network Peer Survey on DSCP/ECN for L4S

values, even for packets that do not traverse the shaped interfaces. - Jared > On Jun 10, 2022, at 9:31 AM, Livingood, Jason via NANOG > wrote: > > Hi – Comcast is working on the implementation of ultra-low latency > networking, leveraging the IETF’s upcoming L4S standard. Thi

Re: Comcast Network Peer Survey on DSCP/ECN for L4S

I would argue that question 9 needs an option of "Both". Secondly, two additional good questions to ask would be: are the ECN values presently being treated as RFC3168? Are the ECN values being modified by any AQM implementations (WRED, FQ_CODEL, etc) on any switch or router in transit?

Comcast Network Peer Survey on DSCP/ECN for L4S

Hi – Comcast is working on the implementation of ultra-low latency networking, leveraging the IETF’s upcoming L4S standard. This standard will require passing ECN and DSCP markings across network boundaries. As a result, we are interested in your perspective on this and in how you handle

Comcast: "Reloading Statics" today

Just a heads-up for the Comcast crew lurking here... I've had 3 different cable connections (Oregon and Washington State) go down in the last ~1.5 hours. Staff on-site have tried rebooting the modem with no success. When we call support, they say something along the lines of "huh,

Re: AT&T, Comcast, Verizon, Others Commit to Low-Income Broadband Program

n Donelan wrote: > >> >> AT&T, Comcast, Verizon, Others Commit to Low-Income Broadband Program >> Providers will help offer high-speed internet to millions of households >> under the infrastructure law >> >> >> https://www.wsj.com/articles/inter

Re: AT&T, Comcast, Verizon, Others Commit to Low-Income Broadband Program

On Mon, May 9, 2022 at 10:32 AM Sean Donelan wrote: > > AT&T, Comcast, Verizon, Others Commit to Low-Income Broadband Program > Providers will help offer high-speed internet to millions of households > under the infrastructure law > > > https://www.wsj.com/articles/int

AT&T, Comcast, Verizon, Others Commit to Low-Income Broadband Program

AT&T, Comcast, Verizon, Others Commit to Low-Income Broadband Program Providers will help offer high-speed internet to millions of households under the infrastructure law https://www.wsj.com/articles/internet-providers-commit-to-low-income-broadband-program-under-infrastructure

Re: Comcast/Florida

ww.heraldtribune.com/story/news/local/2022/04/25/comcast-outage-no-internet-florida/7446019001/ > >> On 4/25/22 15:34, Joe Carroll wrote: >> Comcast in Florida > -- > JeffP >

Re: Comcast/Florida

Joe- Another wayward backhoe strikes again.. https://www.heraldtribune.com/story/news/local/2022/04/25/comcast-outage-no-internet-florida/7446019001/ On 4/25/22 15:34, Joe Carroll wrote: Comcast in Florida -- JeffP

Comcast/Florida

Anyone have insight into what’s happening with Comcast in Florida today? Massive outages…

Re: PoE, Comcast Modems, and Service OutagesPyle

On 3/31/22 8:40 AM, Abraham Y. Chen wrote: 3)    So, it is possible that the site with the reported "PoE induced" issues may be somehow experiencing the above related phenomena. This kind of situations are almost impossible to duplicate at another site. It has to be diagnosed with pains-taking

Re: PoE, Comcast Modems, and Service OutagesPyle

Hi, Colleagues: 0)    I would like to share a personal experience of a different setting to offer an angle for looking into this puzzling topic. 1)    During my graduate study, I was doing microwave experiments in the laboratory. On a six foot bench, I had a series (maybe a dozen or so) of w

Re: PoE, Comcast Modems, and Service Outages

On Wed, Mar 30, 2022 at 05:52:06PM +, Livingood, Jason wrote: > > Their crappy equipment needing rebooting every few weeks, not ridiculous. > > Their purchasing gear from incompetent vendors who cannot be standards > compliant for PoE PD negotiation, tragically plausible. > > Many custome

Re: PoE, Comcast Modems, and Service Outages

at's measurable in terms of s/n ratio and it's on the outside plant HFC side. But noise doesn't "build up", and PoE is DC, and PoE is on the LAN side, separated from Comcast's equipment by a router. Level 1 Comcast guy is simply wrong. -- Jay Hennigan - j...@w

Re: PoE, Comcast Modems, and Service Outages

Thanks Jason—they are all are business connections. I know they can be restarted through the business portal, but honestly the business portal is terrible for large clients. Not all our connections are listed under the same account due to something with Comcast and the way "regions" a

Re: PoE, Comcast Modems, and Service Outages

On 3/30/22 09:53, Grant Taylor via NANOG wrote: On 3/29/22 2:19 PM, Aaron de Bruyn via NANOG wrote: When you hear hoof beats, look for horses, not zebras. As someone with a family member that is a zebra from a health perspective, I follow up with: Yes, /look/ for horses when you hear hoof b

Re: PoE, Comcast Modems, and Service Outages

> I asked him to remotely reboot the modem because there was high packet loss. FWIW, as a customer (assuming residential), you can login to the website and check for area outages/impairments at https://www.xfinity.com/support/status-map. You can also use the Xfinity app to remotely reboot you

Re: PoE, Comcast Modems, and Service Outages

> Their crappy equipment needing rebooting every few weeks, not ridiculous. > Their purchasing gear from incompetent vendors who cannot be standards compliant for PoE PD negotiation, tragically plausible. Many customers buy their own cable modem. You can lease an Xfinity device as well and t

Re: PoE, Comcast Modems, and Service Outages

On 2022-03-30 12:53 p.m., Grant Taylor via NANOG wrote: We've run into too many people who hear hoof beats, assume horses, and proceed as if zebras are absolutely not a possibility. I'll never forget my first major escalation as a young engineer, on a phone call with multiple angry executives

Re: PoE, Comcast Modems, and Service Outages

On 3/29/22 3:46 PM, Joe Greco wrote: So if you want the $100 test to eliminate PoE electrical effects, get a pair of media converters and run fiber between them. Put the CPE on the far end. Optimize as appropriate if you have SFP-capable switches. I second this. I'd also be willing to get a

Re: PoE, Comcast Modems, and Service Outages

On 3/29/22 2:19 PM, Aaron de Bruyn via NANOG wrote: When you hear hoof beats, look for horses, not zebras. As someone with a family member that is a zebra from a health perspective, I follow up with: Yes, /look/ for horses when you hear hoof beats, but -- and this is the important thing --

Re: PoE, Comcast Modems, and Service Outages

> he said I needed to disable PoE because it messes with the Comcast > modems and he can see "buildups" in his graphs that show power is > "leaking" to the Comcast modem every 24 hours. revealing the critical failure with comcast support; they do not share what th

Re: PoE, Comcast Modems, and Service Outages

- On Mar 29, 2022, at 2:46 PM, Joe Greco jgr...@ns.sol.net wrote: Hi, > So if you want the $100 test to eliminate PoE electrical effects, get > a pair of media converters and run fiber between them. Put the CPE on > the far end. Optimize as appropriate if you have SFP-capable switches. But

Re: PoE, Comcast Modems, and Service Outages

. I’ve had some techs replace splitters or make custom length user cables. And yes, the RF stats I mentioned are all on the HFC interface of the cable modem (or the CMTS). Customer facing Ethernet stats may not even be tracked by Comcast. --Blake > On Mar 29, 2022, at 5:29 PM, Aaron de Br

Re: PoE, Comcast Modems, and Service Outages

be on a 24hr cycle (think of a programmable thermostat kicking on the blower fan in your HVAC at the same time every day). As Joe said, there's no SNMP MIB for PoE buildup. There are well documented MIBs for DOCSIS to cover standard signal level, quality, or similar. The cause of that sig

Re: PoE, Comcast Modems, and Service Outages

me every day). As Joe said, there's no SNMP MIB for PoE buildup. There are well documented MIBs for DOCSIS to cover standard signal level, quality, or similar. The cause of that signal strength or quality can be myriad. This Comcast tech has likely climbed the ladder of inference several steps too far.

Re: PoE, Comcast Modems, and Service Outages

On 3/29/22 2:24 PM, Aaron C. de Bruyn wrote: On Tue, Mar 29, 2022 at 12:20 PM Brie > wrote: Unifi/EdgeSwitch? Yeah.  Unfortunately.  USW-24-250. Oh, I have quite a few of them in service. They work great in my experience as long as you don't shove them in hot c

Re: PoE, Comcast Modems, and Service Outages

> On Mar 29, 2022, at 5:46 PM, Joe Greco wrote: > > So if you want the $100 test to eliminate PoE electrical effects, get > a pair of media converters and run fiber between them. Put the CPE on > the far end. Optimize as appropriate if you have SFP-capable switches. > > ... JG > — Bingo ^^^

Re: PoE, Comcast Modems, and Service Outages

On Tue, Mar 29, 2022 at 11:21:28AM -0700, Aaron de Bruyn via NANOG wrote: When I said "yes", he said I needed to disable PoE because it messes with the Comcast modems and he can see "buildups" in his graphs that show power is "leaking" to the Comcast modem every 2

Re: PoE, Comcast Modems, and Service Outages

On 2022-03-29 5:46 p.m., Joe Greco wrote: On Tue, Mar 29, 2022 at 03:42:54PM -0400, Josh Luthman wrote: There's a certain manufacturer of TDD radio where the CPU clock is at the same frequency as what Verizon's enodeB will transmit. Even at miles away, it can and will cause PIM issues. Again,

Re: PoE, Comcast Modems, and Service Outages

On Tue, Mar 29, 2022 at 1:12 PM Joe Greco wrote: > So if you want the $100 test to eliminate PoE electrical effects, get > a pair of media converters and run fiber between them. Put the CPE on > the far end. Optimize as appropriate if you have SFP-capable switches. Sure--that would shoot down

Re: PoE, Comcast Modems, and Service Outages

On 3/29/22 11:21, Aaron de Bruyn via NANOG wrote: I just got off the phone with a Comcast tech, and wanted to double-check my sanity. Somehow in the last 6 months I've managed to reach the exact same rep twice when dealing with an outage or a degraded service event. I asked him to rem

Re: PoE, Comcast Modems, and Service Outages

On Tue, Mar 29, 2022 at 12:20 PM Brie wrote: > Unifi/EdgeSwitch? > Yeah. Unfortunately. USW-24-250. > Yeah, you know when 24v passive POE is turned on because it kills the > port on the other end that aren't designed to handle it. Your router > would likely have a dead eth port on it. > I'

Re: PoE, Comcast Modems, and Service Outages

rally went like this: "Thank you for calling Comcast this is , how can I help you?" "Hey, can you remotely reboot the modem on account 12345? We're seeing high packet loss and latency starting about 10 minutes ago." "Yeah...uh...do you have a PoE switch at that locatio

Re: PoE, Comcast Modems, and Service Outages

On Tue, Mar 29, 2022 at 03:42:54PM -0400, Josh Luthman wrote: > There's a certain manufacturer of TDD radio where the CPU clock is at the > same frequency as what Verizon's enodeB will transmit. Even at miles away, > it can and will cause PIM issues. Again, don't rule it out. I'm not ruling anyt

Re: PoE, Comcast Modems, and Service Outages

There's a certain manufacturer of TDD radio where the CPU clock is at the same frequency as what Verizon's enodeB will transmit. Even at miles away, it can and will cause PIM issues. Again, don't rule it out. Maybe he's just looking for a simple answer that 99% of callers will accept and it make

Re: PoE, Comcast Modems, and Service Outages

On Tue, Mar 29, 2022 at 03:07:47PM -0400, Josh Luthman wrote: > We've routinely seen where lines not even connected to the same circuit in > any way (ie an OTA antenna coax line and cat5 POE) cause issues with one > another. As much as we would all love to have a perfect line in the sand, > there

Re: PoE, Comcast Modems, and Service Outages

;improving' his call resolution stats. Lucky you! When I said "yes", he said I needed to disable PoE because it messes with the Comcast modems and he can see "buildups" in his graphs that show power is "leaking" to the Comcast modem every 24 hours. I j

Re: PoE, Comcast Modems, and Service Outages

via NANOG wrote: > > I just got off the phone with a Comcast tech, and wanted to double-check > my > > sanity. > > > > Somehow in the last 6 months I've managed to reach the exact same rep > twice > > when dealing with an outage or a degraded service event. &g

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