5 ms·

They do publish numbers in a very hidden page: https://www.xfinity.com/networkmanagement https://www.xfinity.com/networkmanagement

by fotta 3y ago

Hakkin 3y ago
This page isn't accurate to their new upgraded infrastructure (mid-splits, DOCSIS 4.0) they've gradually been rolling out over the last year or so. Currently only available in certain areas and limited to their rented xFi modems, but it increases speeds to something like 50 down/50 up, 100~900 down/100 up, 1200~2000 down/200 up. Edit: You can see these new speeds listed here: https://www.reddit.com/r/Comcast_Xfinity/wiki/knowledgebase/next-generation-internet https://www.reddit.com/r/Comcast_Xfinity/wiki/knowledgebase/...
- lotsofpulp 3y ago
  I don’t trust Comcast and coaxial technology to actually deliver close to that if multiple people in the neighborhood are using. As far as I understand, Comcast splits a small amount of bandwidth between a ton of homes, and then applies QoS based on how much people pay. If you buy the 200Mbps up tier, then you might get 200Mbps up for a little bit as a “burst” speed while they take away from the rest of the neighborhood, but not continuous. If it was comparable to fiber, then they would advertising the upload prominently like fiber ISPs advertise it.
  - kortilla 3y ago
    Fiber is not immune to this problem either. You 48 10gbps homes might share a single 20gbps bonded uplink on a switch.
    - mcny 3y ago
      At the risk of stating the obvious, I want to add a quote that I found very informative > If you're given the choice between a low bandwidth private connection, or a small share of a larger bandwidth connection, take the small share. From http://www.stuartcheshire.org/rants/latency.html http://www.stuartcheshire.org/rants/latency.html
      - heavenlyblue 3y ago
        You are not being serious right? That article is discussing the realities of 90s internet
    - abwizz 3y ago
      oversubscription ratios for consumer isp's are typically in the hundreds. and mostly that is fine because wifi is also involved which will domniate any availability or service quality metrics.
    - lotsofpulp 3y ago
      Theoretically, yes. Practically, the fact that no coaxial cable internet prominently advertises upload bandwidth leads me to believe there is far less upload bandwidth available than fiber networks.
    - zymhan 3y ago
      Almost every network uses Statistical Multiplexing. https://en.wikipedia.org/wiki/Statistical_time-division_multiplexing?useskin=vector https://en.wikipedia.org/wiki/Statistical_time-division_mult...
- fotta 3y ago
  I hate that you have to use their modem. I already have a D4.0 modem, just let me use the new speeds.

They do publish numbers in a very hidden page: https://www.xfinity.com/networkmanagement https://www.xfinity.com/networkmanagement

by fotta 3y ago

They do publish numbers in a very hidden page: https://www.xfinity.com/networkmanagement https://www.xfinity.com/networkmanagement

Hakkin 3y ago

This page isn't accurate to their new upgraded infrastructure (mid-splits, DOCSIS 4.0) they've gradually been rolling out over the last year or so. Currently only available in certain areas and limited to their rented xFi modems, but it increases speeds to something like 50 down/50 up, 100~900 down/100 up, 1200~2000 down/200 up. Edit: You can see these new speeds listed here: https://www.reddit.com/r/Comcast_Xfinity/wiki/knowledgebase/next-generation-internet https://www.reddit.com/r/Comcast_Xfinity/wiki/knowledgebase/...

lotsofpulp 3y ago
I don’t trust Comcast and coaxial technology to actually deliver close to that if multiple people in the neighborhood are using. As far as I understand, Comcast splits a small amount of bandwidth between a ton of homes, and then applies QoS based on how much people pay. If you buy the 200Mbps up tier, then you might get 200Mbps up for a little bit as a “burst” speed while they take away from the rest of the neighborhood, but not continuous. If it was comparable to fiber, then they would advertising the upload prominently like fiber ISPs advertise it.
- kortilla 3y ago
  Fiber is not immune to this problem either. You 48 10gbps homes might share a single 20gbps bonded uplink on a switch.
  - mcny 3y ago
    At the risk of stating the obvious, I want to add a quote that I found very informative > If you're given the choice between a low bandwidth private connection, or a small share of a larger bandwidth connection, take the small share. From http://www.stuartcheshire.org/rants/latency.html http://www.stuartcheshire.org/rants/latency.html
    - heavenlyblue 3y ago
      You are not being serious right? That article is discussing the realities of 90s internet
  - abwizz 3y ago
    oversubscription ratios for consumer isp's are typically in the hundreds. and mostly that is fine because wifi is also involved which will domniate any availability or service quality metrics.
  - lotsofpulp 3y ago
    Theoretically, yes. Practically, the fact that no coaxial cable internet prominently advertises upload bandwidth leads me to believe there is far less upload bandwidth available than fiber networks.
  - zymhan 3y ago
    Almost every network uses Statistical Multiplexing. https://en.wikipedia.org/wiki/Statistical_time-division_multiplexing?useskin=vector https://en.wikipedia.org/wiki/Statistical_time-division_mult...
fotta 3y ago
I hate that you have to use their modem. I already have a D4.0 modem, just let me use the new speeds.