Hi,
All modern routers support mapping from IGMPv2 to PIM SSM, all static, some
others thru DNS, etc
Regards,
Jeff
On May 3, 2012, at 12:34 PM, "Nick Hilliard" wrote:
> On 03/05/2012 21:00, Greg Shepherd wrote:
>> Sure, but GLOP predated SSM, and was really only an interim fix for
>> the pres
Hi,
Not useful for router-router link. However it is very useful for
first-hop redundancy in data center environment - if you cannot implement
VRRP for some reason.
Best Regards,
Janos Mohacsi
Head of HBONE+ project
Network Engineer, Director Network and Multimedia
NIIF/HUNGARNET, HUN
The Net::CIDR package contains functions that manipulate lists of
IP netblocks expressed in CIDR notation. The Net::CIDR functions
handle both IPv4 and IPv6 addresses.
WWW: http://search.cpan.org/dist/Net-CIDR/
On Thu, May 03, 2012 at 04:58:27PM -0400, chip wrote:
> Looks like the most recent Ne
Check out InterMapper (http://www.intermapper.com/) Its java based, but
works real well
Found this tool that works perfectly.
http://zwitterion.org/software/aggregate-cidr-addresses/aggregate-cidr-addresses
Hoping this'll help someone else here on the list. Thanks!
On Thu, May 3, 2012 at 4:25 PM, Rafael Rodriguez wrote:
> Hi list,
>
> I can't seem to find any tools that'll aggreg
And I've seen plenty of gear without SSM support:
Some of the larger offenders:
Juniper Clusters.
Cisco ASA
Some Linksys managed switches (no IGMP snooping support for it).
I really wouldn't think it'd be that hard to implement SSM if the equipment
had functional ASM support, but that's a story f
On Thu, May 3, 2012 at 3:32 PM, Nick Hilliard wrote:
> On 03/05/2012 21:00, Greg Shepherd wrote:
>> Sure, but GLOP predated SSM, and was really only an interim fix for
>> the presumed need of mcast address assignments. GLOP only gives you a
>> /24 for each ASN where SSM gives you a /8 for every un
On 03/05/12 16:07, S, Somasundaram (Somasundaram) wrote:
Hi Everyone, Would like to hear from you on the significance of IPV6
"Neighbor Unreachability detection (NUD)" specifically on the
Router-Router link. While quick failure detection protocols like BFD
are already present to detect the liveli
On 03/05/2012 21:00, Greg Shepherd wrote:
> Sure, but GLOP predated SSM, and was really only an interim fix for
> the presumed need of mcast address assignments. GLOP only gives you a
> /24 for each ASN where SSM gives you a /8 for every unique unicast
> address you have along with vastly superior
On Thu, May 3, 2012 at 1:42 PM, wrote:
> On Thu, 03 May 2012 13:38:14 -0700, Greg Shepherd said:
>> > Make sense?
>>
>> Sure, for v6. :)
>
> Does it make sense to be planning new deployments for anythign else? ;)
>
> (Hint - if your reaction is "but we're not v6-capable", who's fault is that?)
T
Looks like the most recent NetAddr::IP perl module will do it:
http://search.cpan.org/~miker/NetAddr-IP-4.059/IP.pm#EXPORT_OK
Take a look at the Compact function. I think that's what will do it.
--chip
On Thu, May 3, 2012 at 4:25 PM, Rafael Rodriguez wrote:
> Hi list,
>
> I can't seem to fin
On Thu, 03 May 2012 13:38:14 -0700, Greg Shepherd said:
> > Make sense?
>
> Sure, for v6. :)
Does it make sense to be planning new deployments for anythign else? ;)
(Hint - if your reaction is "but we're not v6-capable", who's fault is that?)
pgpI1LRac8WuO.pgp
Description: PGP signature
On Thu, May 3, 2012 at 1:19 PM, Owen DeLong wrote:
> Simpler solution... Just set the P flag and use your unicast prefix as part
> of the group ID.
>
> For example, if your unicast prefix is 2001:db8:f00d::/48, you could use:
>
> ff4e:2001:db8:f00d::
>
> Where is any number of your choosing up t
Hi list,
I can't seem to find any tools that'll aggregate a list of IPv6 prefixes.
Used to 'aggregate' for IPv4, looking for something similar for IPv6.
Thanks!
Simpler solution... Just set the P flag and use your unicast prefix as part of
the group ID.
For example, if your unicast prefix is 2001:db8:f00d::/48, you could use:
ff4e:2001:db8:f00d::
Where is any number of your choosing up to 64 bits, but
recommended
to be ≤32 bits.
Make sense?
Owen
O
Sure, but GLOP predated SSM, and was really only an interim fix for
the presumed need of mcast address assignments. GLOP only gives you a
/24 for each ASN where SSM gives you a /8 for every unique unicast
address you have along with vastly superior security and network
simplicity.
Greg
On Thu, Ma
You can also use the glop IP addressing:
http://tools.ietf.org/html/rfc3180
Quentin
-Original Message-
From: Greg Shepherd [mailto:gjs...@gmail.com]
Sent: Thu 5/3/2012 9:35 PM
To: Philip Lavine
Cc: NANOG list
Subject: Re: mulcast assignments
Why do you think you need an assigned mcast b
Yep. What you experienced is exactly what I expected. And yes, sms MAY
make it when a call will not. In SAR demos we tell people, lost in the
woods, if cell doesn't work, send a message, hold the phone as high as
you can and slowly move it a couple feet back and forth.
I do lots of public servi
Why do you think you need an assigned mcast block? All inter domain
mcast uses source trees only, so just use SSM and you don't need
address assignments.
Greg
On Thu, May 3, 2012 at 12:24 PM, Philip Lavine wrote:
> How do I get a registered multicast block?
>
On Thu, May 3, 2012 at 12:25 PM, Luke S. Crawford wrote:
> On Thu, May 03, 2012 at 10:59:47AM -0400, Brandt, Ralph wrote:
>> One of the first things cellular companies can do is stop overselling
>> cellular. The second is end or raise the price significantly on
>> unlimited plans, both voice and
On Thu, May 03, 2012 at 10:59:47AM -0400, Brandt, Ralph wrote:
> One of the first things cellular companies can do is stop overselling
> cellular. The second is end or raise the price significantly on
> unlimited plans, both voice and data. Go to what the landlines called,
> USS, that is you pay
How do I get a registered multicast block?
On May 3, 2012, at 14:37, Brandt, Ralph wrote:
> Sean, do you know anyone who has successfully used either to place a
> call?
Not to my knowledge. Due to some family in government I'm sure I know someone
who's authorized for one or the other, but I can't say the topic's ever come
up. I'm ju
I wanted to mention one other thing here. In addition to my day job I
am a ham radio operator and a IMT COML. I deal with UNDERSTANDABILITY.
I sympathize with you on getting bamboozled by the family, have 3
sisters and two daughters.
But in the real world of communications 2.3 - 2.5 Khz filter
Absolutely. Again, it depends on what service you use, what
contention the provider gives you, and so forth. If you go with a
quality provider and a good service plan, you will not get bumped off
in favor of someone else. Of course, you're paying much more for
service like that, but you really d
On May 3, 2012, at 14:19, Jay Ashworth wrote:
> {citation-needed}
I don't have any numbers to offer, but given the near universality of cellular
phones these days among the adult population I could easily see a majority
going for cellular. Car accidents, house fires, and a lot of other types o
Sean, do you know anyone who has successfully used either to place a
call?
I think the weak spot is when the tower overloads nobody can dial
anything, including the bypass..
Ralph Brandt
Communications Engineer
HP Enterprise Services
Telephone +1 717.506.0802
FAX +1 717.506.4358
Email ralph.bra
Satcoms are the panacea for every problem until you try them. They too have
limited numbers of channels, far lower than cell.
Check the fiasco in Haiti when sat phones were handed out and it took hours to
make calls.
Sometimes two tin cans and a string are better
Ralph Brandt
-Ori
I spent a week in a PEMA conference last fall. One of the presentations
was from two ILECS and 1 CLEC. The answer we got was, yes we do but no
we can't. Got it?
What I understand after grilling the 5 reps from one company and three
for the other, is they have priority of who can make a call but
- Original Message -
> From: "Ralph Brandt"
> The problem with this is, MOST 911 CALLS ARE CELLULAR or soon will be.
{citation-needed}
Cheers,
-- jra
--
Jay R. Ashworth Baylink j...@baylink.com
Designer The Things I Think
As one involved in emergency services I don't gave a rats whether you
can't tell one voice from another. I do care if someone who is having a
fire, accident, cardiac episode or stroke can get through.
The cell companies are worrying about your whim and not the safety.
Ralph Brandt
-Or
The problem with this is, MOST 911 CALLS ARE CELLULAR or soon will be.
Ralph Brandt
PA
-Original Message-
From: Tei [mailto:oscar.vi...@gmail.com]
Sent: Thursday, May 03, 2012 11:15 AM
To: NANOG list
Subject: Re: VoIP vs POTS (was Re: Operation Ghost Click)
Perhaps cell towers can
On 5/3/12 10:29 , Jay Ashworth wrote:
> - Original Message -
>> From: "Adam Atkinson"
>
>> Well, just the above seems like enough that you'd think there'd be more
>> (justified) grumbling that thanks to a choice made many many decades ago
>> it's harder to distinguish young or female spea
- Original Message -
> From: "Adam Atkinson"
> Well, just the above seems like enough that you'd think there'd be more
> (justified) grumbling that thanks to a choice made many many decades ago
> it's harder to distinguish young or female speakers than it is adult
> male ones. Maybe there
On May 3, 2012, at 2:28 AM, James Bensley wrote:
> I'm new to the PTT IXs so does anyone have any recommendations about
> any aspect here, support horror stories, reason to prefer one location
> for peering over another etc? I see Level3 are in the PTT Sao Paulo
> location, and we have access to
Jay Ashworth wrote:
Googling "PCM adult male voice", "4kHz adult male" and similar isn't
finding me anything. Was I told nonsense?
[snippage]
What might be the case is that you'd
have more trouble *distinguishing* amongst women, or between women and
children, because the tones necessary f
On May 3, 2012, at 12:26, Mike Hale wrote:
> Don't cell companies already provide over-ride codes to various
> federal agencies to obtain emergency priority access to cell service?
That would be the Nationwide Wireless Priority Service. Authorized users can
dial *272 to get priority on supporte
That's precisely where SatCom enters the picture. Cell companies
aren't ever going to undersell their bandwidth...that simply isn't
profitable. SatCom is one of the best ways to plan for communications
outages during times of crisis, especially if you choose a provider
that's outside of your area
On Thu, May 3, 2012 at 8:15 AM, Tei wrote:
** Perhaps cell towers can be made to fail sooner, and enter some
** emergency mode where only 911 calls get service.
**
**
**
** --
Don't cell companies already provide over-ride codes to various
federal agencies to obtain emergency priority access to c
On Thu, 03 May 2012 11:01:01 -0400, Jay Ashworth said:
> In general, though, intelligibility comes from the higher frequencies,
> and 3.4kHz is *usually* high enough. What might be the case is that you'd
> have more trouble *distinguishing* amongst women, or between women and
> children, because
- Original Message -
> From: "Ralph Brandt"
> Yes, those things happen. But there are several such failure points in
> the POTS system and hundreds in VOIP. I support VOIP, ISDN etc. But I
> know all too well the failure points...
And here, Ralph puts his finger on what has always been m
Connecticut has such a bill pending. My suggestion to people there, Get
a ham radio license and a 2 meter transceiver with a car adapter...
Ralph Brandt
York PA
-Original Message-
From: Jared Mauch [mailto:ja...@puck.nether.net]
Sent: Wednesday, May 02, 2012 11:29 PM
To: Frank B
Perhaps cell towers can be made to fail sooner, and enter some
emergency mode where only 911 calls get service.
--
--
ℱin del ℳensaje.
Yes, those things happen. But there are several such failure points in the
POTS system and hundreds in VOIP. I support VOIP, ISDN etc. But I know all
too well the failure points...
Ralph Brandt
-Original Message-
From: Jay Ashworth [mailto:j...@baylink.com]
Sent: Wednesday, May 02,
Hi Everyone,
Would like to hear from you on the significance of IPV6 "Neighbor
Unreachability detection (NUD)" specifically on the Router-Router link. While
quick failure detection protocols like BFD are already present to detect the
liveliness of the neighbor, does the providers/operato
I am not worried about the voice quality as long as it is understandable. What
I am concerned about is, "Can someone who needs help get through?
Ralph Brandt
-Original Message-
From: Jeroen van Aart [mailto:jer...@mompl.net]
Sent: Wednesday, May 02, 2012 7:40 PM
To: NANOG list
Subje
"I also am concerned about 911 service. When dialing 911 recently from
my mobile, I should have dialed it from my home phone as I was routed a
few times to get to the right fire dispatch team."
I am a "second responder", a member of a Search and Rescue team. The
reason for "second" is because we
- Original Message -
> From: "Adam Atkinson"
> Jay Ashworth wrote:
> > Now, those codecs *are* specially tuned for spoken word -- if you
> > try to stuff music down them, it's not gonna work very well at all...
>
> It was claimed to me many years ago that the 4kHz cutoff used in POTS
> s
> I am looking for any guidance and advice people have regarding first
> time peerings in South America. Currently I am doing some work with a
> content provider in North America and I want to get them better
> routers into South America, to South American ISPs. I am looking to
> get them an interc
Hi all,
I have posted this to the LacNOG list but it seems pretty quite and it
involves North America also, so I hope no one minds me reposting here
also;
I am looking for any guidance and advice people have regarding first
time peerings in South America. Currently I am doing some work with a
con
Adam Atkinson wrote;
> Jay Ashworth wrote:
> > Now, those codecs *are* specially tuned for spoken word -- if you try
> > to stuff music down them, it's not gonna work very well at all...
>
> It was claimed to me many years ago that the 4kHz cutoff used in POTS
> serves women and children less wel
51 matches
Mail list logo
