Forum Articles
  Welcome back Join CF
You are here You are here: Home | Forum | Modem mode - what does it fix ?

You are currently viewing our boards as a guest which gives you limited access to view most of the discussions, articles and other free features. By joining our Virgin Media community you will have full access to all discussions, be able to view and post threads, communicate privately with other members (PM), respond to polls, upload your own images/photos, and access many other special features. Registration is fast, simple and absolutely free so please join our community today.


Welcome to Cable Forum
Go Back   Cable Forum > Virgin Media Services > Virgin Media Internet Service
Register FAQ Community Calendar

Modem mode - what does it fix ?
Reply
 
Thread Tools
Old 23-12-2011, 15:10   #16
Chrysalis
cf.mega poster
 
Join Date: Sep 2003
Posts: 12,048
Chrysalis is cast in bronzeChrysalis is cast in bronzeChrysalis is cast in bronzeChrysalis is cast in bronze
Chrysalis is cast in bronze
Re: Modem mode - what does it fix ?

yeah as I said earlier it adds latency/jitter. For reasons unconfirmed.
Chrysalis is offline   Reply With Quote
Advertisement
Old 23-12-2011, 16:05   #17
kwikbreaks
Inactive
 
Join Date: May 2010
Services: Plusnet FTTC, FoxSat HDR for TV, Vonage VOIP.
Posts: 2,082
kwikbreaks has reached the bronze age
kwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze age
Re: Modem mode - what does it fix ?

Quote:
Originally Posted by djfunkdup View Post
log into the super hub and disable 'ip flood detection'

you will find it in the 'services' menu
That was one of the things VM "fixed" early on in the Superhub saga. As it was fixed quickly I suspect all that was done was to ignore whatever the setting was on in the GUI and handle it as off. Whatever was done it got rid of the embarassing false "dropped packet" reporting from pingtest.net Plus of course in modem mode it will never have any effect even if it can be set.
kwikbreaks is offline   Reply With Quote
Old 28-12-2011, 11:30   #18
morley04
Inactive
 
Join Date: Feb 2007
Location: Leicester LE3
Services: 100MB, Tivo 1TB, V+HD and XL Phone
Posts: 191
morley04 is on a distinguished roadmorley04 is on a distinguished road
Re: Modem mode - what does it fix ?

A quick phone call and im back to the trusty old VMNG for the time being untill I either upgrade to 100Mb or there is new FW for the hub that fixes the issues.
morley04 is offline   Reply With Quote
Old 28-12-2011, 13:22   #19
General Maximus
cf.mega poster
 
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
Re: Modem mode - what does it fix ?

Good for you dude, it must feel great to be using a proper modem again
General Maximus is offline   Reply With Quote
Old 28-12-2011, 13:27   #20
Ignitionnet
Inactive
 
Join Date: Jun 2008
Location: Leeds, West Yorkshire
Age: 47
Posts: 13,995
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Re: Modem mode - what does it fix ?

Quote:
Originally Posted by General Maximus View Post
Good for you dude, it must feel great to be using a proper modem again
Yeah we all feel emotionally moved by the CPE we use to access the Internet.
Ignitionnet is offline   Reply With Quote
Old 28-12-2011, 16:20   #21
General Maximus
cf.mega poster
 
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
Re: Modem mode - what does it fix ?

Quote:
Originally Posted by Ignitionnet View Post
Yeah we all feel emotionally moved by the CPE we use to access the Internet.
you must be as sad as me then. You have got to be honest though, for something you use, benefit from and enjoy everyday, you have got to feel good when you have got a piece of equipment that kicks ass, especially when you can tell the difference as you have gone from something rubbish to something good.

It is just like car lovers going from a noisey tin can to a brand new Audi or something.
General Maximus is offline   Reply With Quote
Old 28-12-2011, 16:27   #22
morley04
Inactive
 
Join Date: Feb 2007
Location: Leicester LE3
Services: 100MB, Tivo 1TB, V+HD and XL Phone
Posts: 191
morley04 is on a distinguished roadmorley04 is on a distinguished road
Re: Modem mode - what does it fix ?

Well I noticed the difference straight away and im now a happy bunny!
morley04 is offline   Reply With Quote
Old 28-12-2011, 17:45   #23
General Maximus
cf.mega poster
 
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
Re: Modem mode - what does it fix ?

so Ignitionnet
General Maximus is offline   Reply With Quote
Old 28-12-2011, 19:02   #24
Ignitionnet
Inactive
 
Join Date: Jun 2008
Location: Leeds, West Yorkshire
Age: 47
Posts: 13,995
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Re: Modem mode - what does it fix ?

Quote:
Originally Posted by General Maximus View Post
you must be as sad as me then. You have got to be honest though, for something you use, benefit from and enjoy everyday, you have got to feel good when you have got a piece of equipment that kicks ass, especially when you can tell the difference as you have gone from something rubbish to something good.

It is just like car lovers going from a noisey tin can to a brand new Audi or something.
No idea, Shub in modem mode seems to work. Couldn't care less what hooks me up to the internets so long as it works which the Shub appears to in modem mode.

In routing mode it's a disaster mind you, and the network around here is still debatable.

--- 194.168.4.100 ping statistics ---

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max = 7.2/8.8/10.2 ms

EDIT: Wouldn't surprise if the Superhub for the above poster locked to a different, more utilised upstream than the VMNG. Nothing to do with the hardware and purely coincidence.
Ignitionnet is offline   Reply With Quote
Old 28-12-2011, 19:36   #25
Chrysalis
cf.mega poster
 
Join Date: Sep 2003
Posts: 12,048
Chrysalis is cast in bronzeChrysalis is cast in bronzeChrysalis is cast in bronzeChrysalis is cast in bronze
Chrysalis is cast in bronze
Re: Modem mode - what does it fix ?

ignition I back up his claims (assuming you reading this)

When I was last able to compare the superhub to the vmng300 I was able to verify the same upstream channel and it wasnt just jitter, the actual base latency also increased which was visible on my tbb graph. In my view it only shows itself if there is sufficent upstream congestion hence people still getting good latency in low utilised areas.

The superhub was fine on sustained downloading, large files etc. But latency sensitive stuff it was visibly laggier and that included web browsing.

My gut guess is that the configuration is tuned to higher queue depths which allows higher speeds in congested areas (hiding congestion) but also adds delays to packets. As in my view the superhub on my connection did give more sustainable speeds under congestion conditions which in theory should make me happier however the latency made almost everything 'feel' slower.
Chrysalis is offline   Reply With Quote
Old 29-12-2011, 07:50   #26
General Maximus
cf.mega poster
 
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
Re: Modem mode - what does it fix ?

true true. I know a modem is supposed to be a modem but when I ran my speedtests on speedtest.net (with the shub) it always took a few seconds for the page to load, then the testing interface and I always my ping always came back as 35.

When I got my VMNG300 reactivated the first thing I did was head back over to speedtest.net and I knew everything was back to normal straight away; the page loaded pretty much instantaneously and apart from jumping from 21mbits up to 80 something in the test, all my pings were 15ms
General Maximus is offline   Reply With Quote
Old 29-12-2011, 08:47   #27
Ignitionnet
Inactive
 
Join Date: Jun 2008
Location: Leeds, West Yorkshire
Age: 47
Posts: 13,995
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Re: Modem mode - what does it fix ?

It should be clarified that 'modem mode' is VM speak for non-NAT, it's no longer doing NAT, firewalling, etc, but it's not a 'modem'.

Instead of the half-bridge you get from router mode where you see your first hop as VM and VM will see your Superhub's WAN side as your final hop it becomes a full bidirectional bridge between LAN and WAN sides of the Superhub.

Looks like in some cases this bridge causes issues. I guess I'm lucky in that it's one of the few things about my VM service that I can't fault since it was put into non-NAT mode for me as a trial in June.
Ignitionnet is offline   Reply With Quote
Old 29-12-2011, 10:31   #28
kwikbreaks
Inactive
 
Join Date: May 2010
Services: Plusnet FTTC, FoxSat HDR for TV, Vonage VOIP.
Posts: 2,082
kwikbreaks has reached the bronze age
kwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze agekwikbreaks has reached the bronze age
Re: Modem mode - what does it fix ?

So does the way it operates in "non-NAT mode" differ significantly from just putting your router in a DMZ and turning off wireless? If not why did it take all that time to develop?
kwikbreaks is offline   Reply With Quote
Old 29-12-2011, 13:29   #29
General Maximus
cf.mega poster
 
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
General Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronzeGeneral Maximus is cast in bronze
Re: Modem mode - what does it fix ?

Well that explains a lot, thanks
General Maximus is offline   Reply With Quote
Old 29-12-2011, 19:33   #30
Ignitionnet
Inactive
 
Join Date: Jun 2008
Location: Leeds, West Yorkshire
Age: 47
Posts: 13,995
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Re: Modem mode - what does it fix ?

Quote:
Originally Posted by kwikbreaks View Post
So does the way it operates in "non-NAT mode" differ significantly from just putting your router in a DMZ and turning off wireless? If not why did it take all that time to develop?
It's been in the original firmware for ages, unsure about VM's *******ised version. It is somewhat different from putting router in DMZ - that still has the Superhub routing traffic and doing NAT, this doesn't it's just bridged straight between LAN and WAN sides of the Superhub's router.

EDIT: I question how much of a swear word the name for a child born out of wedlock is, but that's the word that the filter caught above.
Ignitionnet is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 16:28.


Server: lithium.zmnt.uk
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
All Posts and Content are © Cable Forum