Gi/Gn DNS for telecoms

[benjamin fernandis]

Hello,

I would try to understand Gi/Gn DNS for telecom operator. I tried Google
for this but did not get any meaningful information.Please share a document
or reference URL to understand it.

Can we use bind DNS for Gi/Gn DNS?

Regards,
Ben
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Re: Gi/Gn DNS for telecoms

[Stephane Bortzmeyer]

On Fri, Nov 15, 2013 at 02:47:10PM +0530,
 benjamin fernandis  wrote 
 a message of 50 lines which said:

> Can we use bind DNS for Gi/Gn DNS?

I have no idea what Gi/Gn is. Can anyone post an explanation?
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Re: Does anyone have DNSSEC problem with uscg.mil

[Stephane Bortzmeyer]

These name servers have another interesting feature: the serial number
is different depending on whether you set the DO bit or or:

% dig +short +dnssec +bufsize=4096 @ns1.uscg.mil SOA uscg.mil
osc-bloxmaster.iap.uscg.mil. hostmaster.uscg.mil. 2012079853 10800 1080 604800 
900
...
% dig +short +nodnssec +noedns +bufsize=0 @ns1.uscg.mil SOA uscg.mil
osc-bloxmaster.iap.uscg.mil. hostmaster.uscg.mil. 2012079854 10800 1080 604800 
900

% dig +short +dnssec +bufsize=4096 @ns1.uscg.mil SOA uscg.mil   
osc-bloxmaster.iap.uscg.mil. hostmaster.uscg.mil. 2012079853 10800 1080 604800 
900
...
% dig +short +nodnssec +noedns +bufsize=0 @ns1.uscg.mil SOA uscg.mil
osc-bloxmaster.iap.uscg.mil. hostmaster.uscg.mil. 2012079854 10800 1080 604800 
900
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Re: Gi/Gn DNS for telecoms

[Tony Finch]

Stephane Bortzmeyer  wrote:
>
> I have no idea what Gi/Gn is. Can anyone post an explanation?

https://en.wikipedia.org/wiki/GPRS_Core_Network

Tony.
-- 
f.anthony.n.finchhttp://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.
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Re: Can I have Inbound load balancing achieved with below settings

[Blake Hudson]

Phil Mayers wrote the following on 11/14/2013 2:39 AM:

On 13/11/13 22:21, Carl Byington wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On Wed, 2013-11-13 at 16:49 -0500, Barry Margolin wrote:

It means that users will have to wait for an arbitrary
number of timeouts before the browser can give them an error message.


Well, the browser *could* of course give a message like "I have tried $N
out of $M possible ip addresses with no success - do you want to abandon
this?" at any time while trying that collection of ip addresses.

The other approach is to try them all in parallel, sort of like ipv4 and
ipv6 parallel connection attempts in http://tools.ietf.org/html/rfc6555


Parallel is bad - they *should* be stagged by $RTT*$FACTOR, otherwise 
you just flood the link with SYN & SYN/ACK packets, all but one of 
which are wasted, and may have consumed bandwidth, buffer space, NAT 
and firewall session resources, to name but a few.


I think there are better solutions than publishing an enormous list of 
A/ records, personally, and I think it's good that browser 
manufacturers aren't blasting out 6 SYNs every time someone types 
www.google.com...
On a related note, I have seen recent Comtrend DSL modems (w/ integrated 
router and DNS cache) send out parallel DNS requests to both of the 
configured DNS servers. The debug log on the modem indicates that the 
modem throws away latter responses.


I agree that staggered might be a softer approach that is less resource 
intensive and will likely achieve the same (or perhaps better) result if 
all services are working. In the case of degraded service, the more 
aggressive parallel client will likely be faster. As a server and 
network admin, I guess we have to anticipate and prepare for clients 
that might be considered borderline abusive.


--Blake
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Re: Can I have Inbound load balancing achieved with below settings

[Sam Wilson]

In article ,
 Blake Hudson  wrote:

> Phil Mayers wrote the following on 11/14/2013 2:39 AM:
> > I think there are better solutions than publishing an enormous list of 
> > A/ records, personally, and I think it's good that browser 
> > manufacturers aren't blasting out 6 SYNs every time someone types 
> > www.google.com...
> On a related note, I have seen recent Comtrend DSL modems (w/ integrated 
> router and DNS cache) send out parallel DNS requests to both of the 
> configured DNS servers. The debug log on the modem indicates that the 
> modem throws away latter responses.

Novell's LAN Workplace for DOS client used to issue simultaneous DNS 
requests to all configured resolvers.  IIRC "all" meant a maximum of 3.  
You could add more servers to its resolv.conf equivalent (RESOLV.CFG?) 
but it ignored all but the first three.

Sam

-- 
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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Re: Gi/Gn DNS for telecoms

[CHAMARTHI, MURTHY]

Gi is external facing and Gn is internal network for telco operation point of 
view.

These are 3gpp interface names
For network they carry user plane/control plane traffic.

You can use bind for Gn /Gi purpose but keep separate each other.make sure 
proper security is enabled on both DNS servers.

Thanks
Murthy

Sent from my iPhone

On Nov 15, 2013, at 1:17 AM, "benjamin fernandis" 
mailto:benjo11...@gmail.com>> wrote:

Hello,

I would try to understand Gi/Gn DNS for telecom operator. I tried Google for 
this but did not get any meaningful information.Please share a document or 
reference URL to understand it.

Can we use bind DNS for Gi/Gn DNS?

Regards,
Ben
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