Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


5 posts

Wannabe Geek


Topic # 239856 8-Aug-2018 11:44
Send private message quote this post

Does Spark regularly oversubscribe their BNGs?

 

I am doing a rather large download and was hoping to get more than 50 Mbit/s on my 100/20 service. Mind you 50 Mbit/s isn't all that bad from the US.

 

However I noticed that the Spark BNG has an average RTT of 8s, at 11am!! This isn't even the busy hour of the day.

 


Filter this topic showing only the reply marked as answer Create new topic
3605 posts

Uber Geek
+1 received by user: 2135

Trusted
Spark NZ

  Reply # 2069742 8-Aug-2018 11:49
7 people support this post
Send private message quote this post

No.

 

 


3605 posts

Uber Geek
+1 received by user: 2135

Trusted
Spark NZ

  Reply # 2069743 8-Aug-2018 11:51
7 people support this post
Send private message quote this post

For a little more detail, the BNGs and AS gateways don't consider ICMP particularly important. If the BNG was dropping traffic or delaying packets then you would see all further upstream hosts having issues as well.

 

 

 

Cheers - N


I fix stuff!
1663 posts

Uber Geek
+1 received by user: 330

Trusted
Vocus
Subscriber

  Reply # 2069791 8-Aug-2018 12:22
2 people support this post
Send private message quote this post

What TalkieT said. Our BNG's are built to do the same

 

Would rather them route than reply to your ICMP :-)


26785 posts

Uber Geek
+1 received by user: 6254

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  Reply # 2069793 8-Aug-2018 12:25
One person supports this post
Send private message quote this post

Plenty of other threads on here from people thinking their ISP is broken because their BNG either doesn't respond to pings or that their latency is high because ICMP is deprioritised and they are unsure how to read MTR results. These other threads discuss pretty extensively why things are configured this way.

 

Nothing is wrong with Spark or your connection.

 

 


'That VDSL Cat'
8253 posts

Uber Geek
+1 received by user: 1748

Trusted
Spark
Subscriber

  Reply # 2069795 8-Aug-2018 12:26
One person supports this post
Send private message quote this post

Sounddude:

 

What TalkieT said. Our BNG's are built to do the same

 

Would rather them route than reply to your ICMP :-)

 

 

oh hey, look at that... It's almost like it's an industry standard! 





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.




5 posts

Wannabe Geek


  Reply # 2069857 8-Aug-2018 13:03
Send private message quote this post

Fair enough about ICMP pings.

 

Let's try UDP then:

 

 

There is only one router than seems to be configured to de-prioritise ICMP or traceroute: 125-239-10-1-adsl.sparkbb.co.nz

 

The other routers upstream of the BNG seem ok about it.


Meow
7618 posts

Uber Geek
+1 received by user: 3702

Moderator
Trusted
Lifetime subscriber

  Reply # 2069874 8-Aug-2018 13:25
One person supports this post
Send private message quote this post
676 posts

Ultimate Geek
+1 received by user: 222

Trusted
Spark NZ

  Reply # 2069886 8-Aug-2018 13:49
4 people support this post
Send private message quote this post

Just because mtr is sending a UDP packet with a low TTL in the IP header instead of an ICMP packet, it does not mean that our BNG will generate a UDP reply.

 

It will still send an ICMP TTL Exceeded message back to the sender.

 

I.e. you're essentially testing the same thing.





My views are my own, and may not necessarily represent those of my employer.



5 posts

Wannabe Geek


  Reply # 2070153 8-Aug-2018 16:56
Send private message quote this post

I was looking more at the 7s delay time to process the TTL exceeded message. I wouldn't have thought that the Spark control plane would be buffering 7s worth of messages and so it would have been the network interface buffering causing the delay.

 

But of course then everything upstream would have had at least 7s of delay. Maybe I posted too soon...

 

Strangely the BNG is responding much faster to pings to it's interface than to TTL=0 frames:

 


2384 posts

Uber Geek
+1 received by user: 799

Trusted
Lifetime subscriber

  Reply # 2070167 8-Aug-2018 18:14
7 people support this post
Send private message quote this post

It's almost like you're complaining about a non issue.





1225 posts

Uber Geek
+1 received by user: 279


  Reply # 2070186 8-Aug-2018 19:47
Send private message quote this post

Just read it as an artefact.

295 posts

Ultimate Geek
+1 received by user: 73

Trusted
Emergency Management

  Reply # 2070319 8-Aug-2018 22:09
One person supports this post
Send private message quote this post

Try listening to the guys in the tread that actually do this as a day job for the Telecos so might know a couple of things about how thierequipment works.

 

when you say you are not getting what you think you should be getting in download.. Are you on Wireless? No one else streaming netflix or gaming?

 

 

 

 


676 posts

Ultimate Geek
+1 received by user: 222

Trusted
Spark NZ

  Reply # 2070479 9-Aug-2018 10:10
Send private message quote this post

@p00t can you advise what router you're using?





My views are my own, and may not necessarily represent those of my employer.

1986 posts

Uber Geek
+1 received by user: 749

Trusted

  Reply # 2070493 9-Aug-2018 10:40
Send private message quote this post

"But of course then everything upstream would have had at least 7s of delay."

 

This is exactly why what you've posted is a non-issue :)


Filter this topic showing only the reply marked as answer Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Intel introduces new NUC kits and NUC mini PCs
Posted 16-Aug-2018 11:03


The Warehouse leaps into the AI future with Google
Posted 15-Aug-2018 17:56


Targus set sights on enterprise and consumer growth in New Zealand
Posted 13-Aug-2018 13:47


Huawei to distribute nova 3i in New Zealand
Posted 9-Aug-2018 16:23


Home robot Vector to be available in New Zealand stores
Posted 9-Aug-2018 14:47


Panasonic announces new 2018 OLED TV line up
Posted 7-Aug-2018 16:38


Kordia completes first live 4K TV broadcast
Posted 1-Aug-2018 13:00


Schools get safer and smarter internet with Managed Network Upgrade
Posted 30-Jul-2018 20:01


DNC wants a safer .nz in the coming year
Posted 26-Jul-2018 16:08


Auldhouse becomes an AWS Authorised Training Delivery Partner in New Zealand
Posted 26-Jul-2018 15:55


Rakuten Kobo launches Kobo Clara HD entry level reader
Posted 26-Jul-2018 15:44


Kiwi team reaches semi-finals at the Microsoft Imagine Cup
Posted 26-Jul-2018 15:38


KidsCan App to Help Kiwi Children in Need
Posted 26-Jul-2018 15:32


FUJIFILM announces new high-performance lenses
Posted 24-Jul-2018 14:57


New FUJIFILM XF10 introduces square mode for Instagram sharing
Posted 24-Jul-2018 14:44



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.