Hi Sofia,
I am currently an Assistant Researcher in Zhongguancun Lab, Beijing, China.
Although I am not a network operator, I am very interested in this topic.
Last year, I also did a survey asking network operators about the barriers to
adopting ROA and ROV. That work has been accepted by N
We’re seeing 30-50% packet loss on a hop around what we believe is
Chicago area. Please reach out off-list if you can help. ->
voiptest.sea.telecomsvc.com(64.282024-09-10T11:02:57-0500
You have 0% packet loss on any hop past that hop, and 0% packet loss at the
destination...
Learn what ICMP deprioritization is, there is no packet loss shown in that.
On Tue, Sep 10, 2024, 12:30 Doug Barrett wrote:
> We’re seeing 30-50% packet loss on a hop around what we believe is Chicago
>
Doug,
I'd recommend giving this a read:
https://www.linode.com/docs/guides/diagnosing-network-issues-with-mtr/#verify-packet-loss
Your trace shows nothing of concern.
-Matt
On Tue, Sep 10, 2024 at 10:28 AM Doug Barrett wrote:
> We’re seeing 30-50% packet loss on a hop around what we believe
I have an employee who has recently switched to Xfinity cable service.
Ever since they switched their internet service their work phones will
not stay registered for more than about 3 minutes.
These same phones have been used on many ISPs without issues. The same
config has been used behind m
Your message is timely for me. I literally have the exact same issue. I setup
phones for my daughter’s home and she got Xfinity. Everything worked for a few
minutes then I could not keep phones registered after.
Norman Jester
> On Sep 10, 2024, at 12:18 PM, Matt Hoppes
> wrote:
>
> I have
Well this is curious
Same issue... they are breaking something with registration. What
region are you in? We are in North Central PA so we're routing
On 9/10/24 3:25 PM, Norman Jester wrote:
Your message is timely for me. I literally have the exact same issue. I setup
phones for my dau
Saint Helena, CA near Napa
Norman Jester
> On Sep 10, 2024, at 12:52 PM, Matt Hoppes
> wrote:
>
> Well this is curious
>
> Same issue... they are breaking something with registration. What region are
> you in? We are in North Central PA so we're routing
>
>> On 9/10/24 3:25 PM, Nor
So not even the same area then.
We've now spent 2 hours on the phone and have gotten nowhere with support.
Hoping someone here at XFinity can chime in and provide some offline
assistance.
On 9/10/24 3:59 PM, Norman Jester wrote:
Saint Helena, CA near Napa
Norman Jester
On Sep 10, 2024,
Does anyone know the best way to get a hold of Amazon and get out off
the naughty list on Cloudfront? I've got some ranges that appear to be
blocked totally by Cloudfront.
Thanks in advance
Are you aware of whether or not Xfinity is doing CGNAT for either of you?
Googling, I get conflicting results, some saying they use CGNAT, some
saying they don't. If they do, I wonder if their CGNAT routers have SIP
ALG enabled or disabled. Unfortunately, these are the sorts of questions
I su
For me there does not *appear* to be CGNAT as I can ping the client IP
and if we kill power to the modem the pings stop.
On 9/10/24 4:27 PM, Jon Lewis wrote:
Are you aware of whether or not Xfinity is doing CGNAT for either of
you? Googling, I get conflicting results, some saying they use CGNAT
What happens when you decrease your registration frequency? Do the
phones stay registered? Have you tried TLS for the SIP transport by chance?
I manage a few phones on comcast across the country and have no problems.
On 9/10/2024 3:52 PM, Matt Hoppes wrote:
Well this is curious
Same issue
Have not tried TLS... but yes I reduced the registration frequency to
something absurd like 60 seconds and it still would timeout after about
3 minutes.
On 9/10/24 4:36 PM, Mark Wiater wrote:
What happens when you decrease your registration frequency? Do the
phones stay registered? Have you tr
Two things that seem to help whenever I'm dealing with bizarre Comcast
issueshave her call in and:
* Ask for "Security Edge" to be disabled if it's enabled (last time we did
this Comcast told us they couldn't permanently disable it unless we paid a
lot more per month for service and it would au
On 9/10/24 1:36 PM, Mark Wiater wrote:
What happens when you decrease your registration frequency? Do the
phones stay registered? Have you tried TLS for the SIP transport by
chance?
I manage a few phones on comcast across the country and have no problems.
In this day and age TLS isn't the
At my previous MSP $dayjob, I ran into a few clients with Xfinity and
Spectrum who both would mess with our VoIP solution UNLESS we enabled
TLS SIP registration, we already used TCP on a non 5060 port by
default to help with UDP timeouts and such.
Now the RTP traffic could stay clear UDP, this was
Hi,
I got Fios installed today in my NYC apartment, as I just moved back
from Seattle after a 4-month stay in Connecticut.
When doing a traceroute, I am noticing an incorrect Reverse DNS entry:
[root@twin ~]# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
1
We've just moved to tunneling anything VoIP if on Comcast's network.
-
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
- Original Message -
From: "Matt Hoppes"
To: nanog@nanog.org
Sent: Tuesday, September 10, 2024 2:17:37 PM
Sub
If you're using SRTP and passing keys in the SDP announcement, it would
be rather pointless. I don't know how common it is to do the inline
keying for SRTP which I understand is how VoLTE works, but seriously I
can't imagine why anybody would not use SIPS: Nothing good came come of
that.
Mike
Same experience here, with Comcast, at least 15 years ago. What was
striking was that the tunnel had to be encrypted; plain old GRE
tunneling worked for everything else, but GRE-encapsulated VoIP packets
never arrived at the other end of the tunnel. We ended up just
backhauling all traffic from
I did the same…. No progress at all.
Norman Jester
> On Sep 10, 2024, at 1:00 PM, Matt Hoppes
> wrote:
>
> So not even the same area then.
>
> We've now spent 2 hours on the phone and have gotten nowhere with support.
>
> Hoping someone here at XFinity can chime in and provide some offlin
Just a bystander here, but what leads you to believe the packets aren't
going thru a router in Pittsburgh?
-- Dan
On Tue, Sep 10, 2024, 5:21 PM Neel Chauhan wrote:
> Hi,
>
> I got Fios installed today in my NYC apartment, as I just moved back
> from Seattle after a 4-month stay in Connecticut.
None of this should be a surprise to anyone. Remember that Comcast was one
of the earliest isps to do DPI at large scale with Sandvine in the early
days. Today's Comcast network has "smartedge" which is the latest flavor of
deep packet interception and manipulation. Also remember isps are in the
da
Thanks so much for your interest and for sharing that article Lancheng!
I was aware of this paper and it was part of my initial reading work earlier
this year to catch up on where things were at.
Thanks so much for bringing this back to my attention! I’ll read it again and
make sure we consider
Have you tried placing the CPE in “bridged" mode? It’s been a while since I’ve
done anything with Comcast CPE, but I remember their CPE doing SIP ALG when
acting as a router.
> On Sep 10, 2024, at 2:17 PM, Matt Hoppes
> wrote:
>
> I have an employee who has recently switched to Xfinity cable
Can’t go from NYC to Pittsburgh in 1.7ms. NYC<>Pittsburgh is approx 800 miles
round trip, speed of light would roughly be 4ms.
On Sep 10, 2024, at 5:11 PM, Daniel Sterling wrote:
Just a bystander here, but what leads you to believe the packets aren't going
thru a router in Pittsburgh?
-- Dan
Could be the border router facing a connection to Pittsburgh.ShaneOn Sep 10, 2024, at 9:28 PM, Tim Burke wrote:
Can’t go from NYC to Pittsburgh in 1.7ms. NYC<>Pittsburgh is approx 800 miles round trip, speed of light would roughly be 4ms.
On Sep 10, 2024, at 5:11 PM, Daniel Sterling wrote
Mine will not longer register at all. They registered maybe three times and
then just stopped.
Norman Jester
> On Sep 10, 2024, at 1:43 PM, Matt Hoppes
> wrote:
>
> Have not tried TLS... but yes I reduced the registration frequency to
> something absurd like 60 seconds and it still would t
29 matches
Mail list logo
