Re: Heads up: Long AS-sets announced in the next few days

2005-03-02 Thread Christopher L. Morrow


On Wed, 2 Mar 2005, Hank Nussbacher wrote:


 At 02:49 AM 02-03-05 +0100, Daniel Roesen wrote:
 On Wed, Mar 02, 2005 at 01:27:31AM +, James A. T. Rice wrote:
   What exactly are you attempting to do here? Those announcements will get
   dropped on the floor at least in this AS right away:
  
   route-map peers-in deny 5
match as-path 109
 
 AS-Sets, not AS-Paths...

 An example of which I received recently:
 Feb 27 19:54:16: %BGP-6-ASPATH: Long AS path 20965 1299 3320 15589 15589
 5397
 {33,109,145,293,559,816,1103,1273,1275,1752,1853,1930,2042,2200,2497,2500,2914,3257,3265,,3352,3425,3549,4691,4697,4716,4725,5511,5539,5609,5623,6175,6435,6453,6762,6830,6939,7580,7660,8447,8472,8763,9264,10566,12779,12793,12859,13944,14277,15897,17715,17965,24136,24895,25358,29377,29686,31103,32266}
 received from 2001:798:201B:10AA::1: More than configured MAXAS-LIMIT

different, but related to:
Feb  1 20:47:01.608: %BGP-6-ASPATH: Long AS path  3356 6770
8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282
8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282
8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282
8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282
8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282
8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282 8282
received from x.y.a.b: More than configured MAXAS-LIMIT

hey, 8282/Fido, perhaps you don't really need a 100 as as-path? :)

-Chris


Re: Heads up: Long AS-sets announced in the next few days

2005-03-02 Thread Christopher L. Morrow

On Wed, 2 Mar 2005, Christopher L. Morrow wrote:


 On Wed, 2 Mar 2005, Hank Nussbacher wrote:

 
  At 02:49 AM 02-03-05 +0100, Daniel Roesen wrote:
  On Wed, Mar 02, 2005 at 01:27:31AM +, James A. T. Rice wrote:
What exactly are you attempting to do here? Those announcements will get
dropped on the floor at least in this AS right away:
   
route-map peers-in deny 5
 match as-path 109
  
  AS-Sets, not AS-Paths...
 
  An example of which I received recently:
  Feb 27 19:54:16: %BGP-6-ASPATH: Long AS path 20965 1299 3320 15589 15589
  5397
  {33,109,145,293,559,816,1103,1273,1275,1752,1853,1930,2042,2200,2497,2500,2914,3257,3265,,3352,3425,3549,4691,4697,4716,4725,5511,5539,5609,5623,6175,6435,6453,6762,6830,6939,7580,7660,8447,8472,8763,9264,10566,12779,12793,12859,13944,14277,15897,17715,17965,24136,24895,25358,29377,29686,31103,32266}
  received from 2001:798:201B:10AA::1: More than configured MAXAS-LIMIT

 different, but related to:
 Feb  1 20:47:01.608: %BGP-6-ASPATH: Long AS path  3356 6770

 received from x.y.a.b: More than configured MAXAS-LIMIT

 hey, 8282/Fido, perhaps you don't really need a 100 as as-path? :)

uhm, back in my hole... this is a month ago :)


Re: High volume WHOIS queries

2005-03-02 Thread Hank Nussbacher
At 06:00 PM 01-03-05 -0500, Larry J. Blunk wrote:
 ftp://ftp.arin.net/info/asn.txt

 Lists AS number, the whois AS name, and POC handle for each AS.

 Jeff

  If you are also interested in AS info outside the ARIN region,
the following file may be of interest --
http://bgp.potaroo.net/as1221/asnames.txt
Or this:
http://netgeo.caida.org/aslatlong.txt
-Hank



Re: High volume WHOIS queries

2005-03-02 Thread Daniel Senie
At 03:01 AM 3/2/2005, Hank Nussbacher wrote:
At 06:00 PM 01-03-05 -0500, Larry J. Blunk wrote:
 ftp://ftp.arin.net/info/asn.txt

 Lists AS number, the whois AS name, and POC handle for each AS.

 Jeff

  If you are also interested in AS info outside the ARIN region,
the following file may be of interest --
http://bgp.potaroo.net/as1221/asnames.txt
Or this:
http://netgeo.caida.org/aslatlong.txt
Interestingly, the Caida data lacks AS numbers issued in the last several 
months, while the data is present in the arin.net and potaroo.net listings. 
Not sure where Caida gets its data, but the other sources would seem to be 
better for the project the original poster had in mind.

It's also more than a bit odd, IMO, to assign a latitude and longitude to 
AS numbers. While some networks are well localized, many others span 
continents. As such, the value of that part of the caida data set seems 
nebulous.




Re: AOL scomp

2005-03-02 Thread Jim Segrave

On Tue 01 Mar 2005 (22:36 -0500), Joe Maimon wrote:
 
 
 Barry Shein wrote:
 
 On March 1, 2005 at 14:17 [EMAIL PROTECTED] (Jim Segrave) wrote:
   I don't understand this complaint - we process AOL TOS Notifications
   daily and I find perhaps 1 in a hundred or so are not valid complaints.
 
 Here about 99% are not valid or interesting.
 
 Which is to say, I had one small burst once caused by an infected
 customer machine which we got shut off fast and fixed.
 
 The rest are virtually all just people on mailing lists hosted here
 sending each and every completely on-topic posting to TOS.
 
 I suppose I should figure out some way to track them so I can boot
 them off those lists since AOL removes all identifying information.
 
 
 Apparently the ratio of valid/invalid AOL notifications is a usefull 
 indicator on the cleanliness of the relevant network.

Or alternatively, some networks have few users who communicate with
AOL customers - they aren't currently big-time in the Netherlands -
and the ratio of valid to invalid complaints has sweet FA to do with
anything else. We don't set up mail forwarding for residential
customers so that's another non-issue.

-- 
Jim Segrave   [EMAIL PROTECTED]


Re: Why do so few mail providers support Port 587?

2005-03-02 Thread JP Velders


 Date: Mon, 28 Feb 2005 16:54:23 -0500
 From: Nils Ketelsen [EMAIL PROTECTED]
 To: nanog@merit.edu
 Subject: Re: Why do so few mail providers support Port 587?

 [ ... ]
 I do not know about your E-Mail Policy, but normally it is either
 allowed to use an external mailserver or not. If it is allowed, I
 can as well allow Port 25 outgoing. If it is not I will block 25 and
 587.

Our corporate policy is that if you want to send mail with a
@ourdomain address, you have to use our mailserver. On that machine we
can rewrite usernames etc. But I have lots of users who also work at
other places - to give you a hint, many of my users are researchers
over here, but teachers at different places.

So it's *not* in my employers best interest to disallow them *any*
means of mailing with a @non-ourdomain address if that @non-ourdomain
site allows them to do so via some other means then port 25...

  Port 587 on the other hand is meant for submission by clients. The
  security implications of allowing my users to contact such a port are
  very very low. If someone won't secure his mailserver on port 587,
  that's something different, but substantially different than if it
  were insecure on port 25...

 An interesting theory. What is the substantial difference? For
 me the security implications of allowing the user to bypass our
 mailsystem on port 25 and allowing the user to bypass our mailsystem on
 port 587 are not as obvious as they maybe are to you.

Anything listening on port 587 - as has been said many times over in
this discussion - should not blindly relay. It should demand
authentication from the user and only when those are satisfactory
relay.

That was and is what port 587 is meant for. Port 25 has a much too
diverse role in the way mail delivery is handled. But you can
generally classify that it's used for inter-site communications and
intra-site submission. Port 587 is for submissium, intra-site and
extra-site.

Just because you only allow port 80 inbound to the machines which are
supposed to be running webservers doesn't mean you only allow outbound
port 80 traffic to those same machines ? You would allow outbound port
80 traffic to the whole world...

 Nils

Regards,
JP Velders


More on Vonage service disruptions...

2005-03-02 Thread Fergie (Paul Ferguson)


advancedIPpipeline is running another article this morning
in their series of articles covering the Vonage service
disruptions that [allegedly] invlove an ISP port blocking
SIP connectitity between Vonage's client equipment and
Vonage's servers. While there is a bit more decriptive
detail in this article involving the nature of the service
interruptions, Vonage's CEO, Jeffrey Citron, is trying
to make a [in my opinion] weak argument that this type
of traffic blocking is akin to censorship.

http://www.advancedippipeline.com/news/60404589

The silliness of the censorship argument aside, an
interesting snippet within this article started me
thinking abut the slippery slope which might
ensue if any type of legislation is enacted which
would attempt to prohibit an ISP from blocking
traffic in an effort to keep it [unwanted traffic]
from traversing their network:

 'It'd be unfortunate to have to pass a law [against
 port blocking and other types of interference], but
 we may have to,' Citron said. Though he said he has
 previously testified against the need for port-blocking
 regulation, Citron may now change that tune, especially
 if more network operators start using port-blocking or
 other techniques to selectively control Internet
 traffic.

It looks to me like this is going to open up a huge can
of worms. On one hand, you have ISP's who own their own
infrastructure and have every right to prohibit traffic
from traversing their network which does not conform to
their AUP, business practices, technical standards, etc.,
or provide revenue. By the same token, and specifically
when it comes to things like VoIP, we have these issues
involving PUC's, FCC regulations, equal access rights,
etc.

IANAL (or a policy wonk), and I hope I'm wrong, but it
certainly looks like things could get pretty ugly.

- ferg

--
Fergie, a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 [EMAIL PROTECTED] or
 [EMAIL PROTECTED]


RE: More on Vonage service disruptions...

2005-03-02 Thread Church, Chuck

Those are good points.  Someone last week mentioned what I thought was a
great list of priorities for an ISP:
1.  Keep the network running
2.  Remove those violating policies
3.  Route packets
(or something along those lines)

A 30/50/90 kbps unicast stream isn't going to affect #1.  I
don't think any policies involved in #2 would cover a VoIP service
either.  That should leave #3 as the default for this traffic.  I can
picture a DDOS where infected Windows machines could send bogus SIP
traffic to Vonage servers; in this case temporary blocking might be
needed/justified.  But until that happens, blocking SIP is just wrong.
Another thing for an ISP considering blocking VoIP is the fact that
you're cutting off people's access to 911.  That alone has got to have
some tough legal ramifications.  I can tell you that if my ISP started
blocking my Vonage, my next cell phone call would be my attorney... 


Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design  Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
[EMAIL PROTECTED]
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0x4371A48D 


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Fergie (Paul Ferguson)
Sent: Wednesday, March 02, 2005 9:46 AM
To: nanog@merit.edu
Subject: More on Vonage service disruptions...



advancedIPpipeline is running another article this morning
in their series of articles covering the Vonage service
disruptions that [allegedly] invlove an ISP port blocking
SIP connectitity between Vonage's client equipment and
Vonage's servers. While there is a bit more decriptive
detail in this article involving the nature of the service
interruptions, Vonage's CEO, Jeffrey Citron, is trying
to make a [in my opinion] weak argument that this type
of traffic blocking is akin to censorship.

http://www.advancedippipeline.com/news/60404589

The silliness of the censorship argument aside, an
interesting snippet within this article started me
thinking abut the slippery slope which might
ensue if any type of legislation is enacted which
would attempt to prohibit an ISP from blocking
traffic in an effort to keep it [unwanted traffic]
from traversing their network:

 'It'd be unfortunate to have to pass a law [against
 port blocking and other types of interference], but
 we may have to,' Citron said. Though he said he has
 previously testified against the need for port-blocking
 regulation, Citron may now change that tune, especially
 if more network operators start using port-blocking or
 other techniques to selectively control Internet
 traffic.

It looks to me like this is going to open up a huge can
of worms. On one hand, you have ISP's who own their own
infrastructure and have every right to prohibit traffic
from traversing their network which does not conform to
their AUP, business practices, technical standards, etc.,
or provide revenue. By the same token, and specifically
when it comes to things like VoIP, we have these issues
involving PUC's, FCC regulations, equal access rights,
etc.

IANAL (or a policy wonk), and I hope I'm wrong, but it
certainly looks like things could get pretty ugly.

- ferg

--
Fergie, a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 [EMAIL PROTECTED] or
 [EMAIL PROTECTED]


RE: More on Vonage service disruptions...

2005-03-02 Thread Fergie (Paul Ferguson)


One the points that I left unsaid, however, is that
there may be many, many reasons -- both technically
and business-wise -- why an ISP would want to port-
filter, or for a better generalization, suppress
some traffic. For instance, blocking p2p traffic,
or a known worm, whatever. And there very likely
may be busine$$ reasons, as well.

A corrollary: Is it a denial of service to suppress
(dampen) a BGP route when it flaps excessively? Or
perhaps an bloack-hole a RBL entry? Most would say
not, certainly depending on the reason (self- and
Internt-preservation and stability), but certainly
someone could arguably make a federal case out of
it (levity implied) or similar suppresssions or
blocking of traffic.

VoIP brings these issues to the forefront.

In any event, it's going to be interesting to see
how this evolves.

- ferg

-- Church, Chuck [EMAIL PROTECTED] wrote:

Those are good points.  Someone last week mentioned what I thought was a
great list of priorities for an ISP:
1.  Keep the network running
2.  Remove those violating policies
3.  Route packets
(or something along those lines)

A 30/50/90 kbps unicast stream isn't going to affect #1.  I
don't think any policies involved in #2 would cover a VoIP service
either.  That should leave #3 as the default for this traffic.  I can
picture a DDOS where infected Windows machines could send bogus SIP
traffic to Vonage servers; in this case temporary blocking might be
needed/justified.  But until that happens, blocking SIP is just wrong.
Another thing for an ISP considering blocking VoIP is the fact that
you're cutting off people's access to 911.  That alone has got to have
some tough legal ramifications.  I can tell you that if my ISP started
blocking my Vonage, my next cell phone call would be my attorney... 


Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design  Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
[EMAIL PROTECTED]
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0x4371A48D 

--
Fergie, a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 [EMAIL PROTECTED] or
 [EMAIL PROTECTED]


Is anyone actually using OER to do traffic shaping/balancing?

2005-03-02 Thread Drew Weaver








 Hit me offlist if you have experience with this
actually working for you.



-Drew










Re: AOL scomp

2005-03-02 Thread Todd Vierling

On Wed, 2 Mar 2005, Suresh Ramasubramanian wrote:

 Well - there's a way out, sort of.

 1. Route .forwarded email out a separate IP (besides cutting down on
 accepting and forwarding spam)

 or

 2. Find some way - like an X-Forwarded-For header, that AOL can tag on.

 --srs

Your third option is best.  (Excuse the signature-pun.  :)

SRS does not require SPF, and provides auditability for forwarded mail:

http://spf.pobox.com/srs.html

-- 
-- Todd Vierling [EMAIL PROTECTED] [EMAIL PROTECTED]


Re: More on Vonage service disruptions...

2005-03-02 Thread Patrick Muldoon

Church, Chuck wrote:
 Another thing for an ISP considering blocking VoIP is the fact that
 you're cutting off people's access to 911.  That alone has got to have
 some tough legal ramifications.  I can tell you that if my ISP started
 blocking my Vonage, my next cell phone call would be my attorney... 

Vonage is not supposed to be a Primary Line Service. IIRC, I got a big
flyer with my welcome kit that basically said this is a Communications
service, not a Telephone service, and it outlined the differences.

What is more stable where you are, your broadband connection or your
telephone line to your LEC? (if you still have one).  I know in my case
at home, the phone line was much more reliable, then my cable modem.  I
can count the times on 1 hand that I had been without Dial tone in the
last 3 years (And I live in a rural area), but my cable modem connection
goes out at least once a month.  So if My cable modem goes out, I would
be effectively without 911 also.  As my ISP @ home is not a regulated
entity, the only person I can complain to is them, or else take my
business elsewhere.

Even if the ISP in question is a LEC, normally the ISP side of the house
is unregulated. The LEC providesthe circuit, and the ISP provides the
bandwidth / services on that circuit.

If you ISP decided to block VOIP, your cell phone call should be to
their competition to order service from them, and vote with your
dollars.  Or at least to your ISP to call up and complain.

Just my opinion, IANAL (I don't even play one on TV), etc...

-Patrick

-- 
Patrick Muldoon
Network/Software Engineer
INOC (http://www.inoc.net)
PGPKEY (http://www.inoc.net/~doon)
Key ID: 0x370D752C

(A)bort, (R)etry, (P)retend this never happened?


Re: AOL scomp

2005-03-02 Thread Gregory Hicks


 Date: Wed, 2 Mar 2005 10:25:56 +0530
 From: Suresh Ramasubramanian [EMAIL PROTECTED]
 
 
 On Tue, 01 Mar 2005 09:28:31 -0500, Vinny Abello [EMAIL PROTECTED] wrote:
  I can attest that we do not see the same here as you are seeing (1 in 100).
  I'd agree more with the 1/3 being stupid AOL users reporting regular
  messages that were either forwarded from their own account that we host to
 
 Well - there's a way out, sort of.
 
 1. Route .forwarded email out a separate IP (besides cutting down on
 accepting and forwarding spam)
 
 or
 
 2. Find some way - like an X-Forwarded-For header, that AOL can tag on.

There aready ARE such headers...  Resent-From:,  Resent-To:, ...

 
 --srs
 
 -- 
 Suresh Ramasubramanian ([EMAIL PROTECTED])

---
Gregory Hicks| Principal Systems Engineer
Cadence Design Systems   | Direct:   408.576.3609
555 River Oaks Pkwy M/S 6B1  | Fax:  408.894.3400
San Jose, CA 95134   | Internet: [EMAIL PROTECTED]

I am perfectly capable of learning from my mistakes.  I will surely
learn a great deal today.

A democracy is a sheep and two wolves deciding on what to have for
lunch.  Freedom is a well armed sheep contesting the results of the
decision. - Benjamin Franklin

The best we can hope for concerning the people at large is that they
be properly armed. --Alexander Hamilton




RE: More on Vonage service disruptions...

2005-03-02 Thread Church, Chuck

Yeah, I forgot about the regulation thing.  I suppose I'd give the ISP a
call first, but I'd expect it to be working within a few hours.  But now
that cable modem providers themselves are providing VoIP/dialtone,
wouldn't those be regulated by the FCC?  I know that my cable modem ISP
(Charter) has been much more reliable the last few months, as they're
doing a bunch of upgrades regarding redundancy.  I believe this is to
support their new VoIP service.  But it still seems to me that blocking
someone from making a 911 call would be a lawsuit waiting to happen.  

Chuck 


-Original Message-

Even if the ISP in question is a LEC, normally the ISP side of the house
is unregulated. The LEC providesthe circuit, and the ISP provides the
bandwidth / services on that circuit.

If you ISP decided to block VOIP, your cell phone call should be to
their competition to order service from them, and vote with your
dollars.  Or at least to your ISP to call up and complain.

Just my opinion, IANAL (I don't even play one on TV), etc...

-Patrick

-- 
Patrick Muldoon
Network/Software Engineer
INOC (http://www.inoc.net)
PGPKEY (http://www.inoc.net/~doon)
Key ID: 0x370D752C

(A)bort, (R)etry, (P)retend this never happened?


ingress filter

2005-03-02 Thread adrian kok

Hi all

I used ingress-loose-template from cisco and applied
to my bgp ingress filter.

I got the following part of the log files and not sure
it is right filter  or not

Can you help?

BGP: 1.2.3.4 rcvd UPDATE about 168.187.178.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 167.231.51.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 147.182.199.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.200.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.208.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.216.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.224.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.232.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.240.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.248.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.200.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.208.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.216.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.224.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.232.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.240.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.248.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.200.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.208.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.216.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.224.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.232.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.240.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.248.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 142.137.192.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 158.222.4.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 170.210.200.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 163.25.90.0/23 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 163.25.92.0/22 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 163.25.112.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 144.106.82.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 166.114.156.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 144.106.82.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 166.114.156.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 163.25.90.0/23 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 163.25.92.0/22 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 163.25.112.0/21 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 153.2.228.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 129.66.96.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 136.210.48.0/22 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 146.178.26.0/24 --
DENIED due to: filter;
BGP: 1.2.3.4 rcvd UPDATE about 153.96.100.0/24 --
DENIED due to: filter;




Re: AOL scomp

2005-03-02 Thread Anne P. Mitchell, Esq.

Otherwise, I think that it can be helpful in identifying issues.
We use it to help advise us with respect to the IADB accreditation 
database, and what we have found is that yes, there are a lot of 
complaints for legitimate opt-in mail, but a demonstrable change in 
*volume* (rather than the valid:invalid complain ratio) can often 
notify us very early on about a problem mailing by someone listed in 
IADB.  Due to the nature of the senders listed in IADB, typically a 
what's going on with this?? inquiry will result very quickly in a 
problem customer of the sender's either getting a clue or getting the 
boot.

Anne
Anne P. Mitchell, Esq.
President/CEO
Institute for Spam and Internet Public Policy
http://www.isipp.com  http://www.isipp.com/iadb.php
Professor of Law, Lincoln Law School of SJ


Re: Heads up: Long AS-sets announced in the next few days

2005-03-02 Thread Lorenzo Colitti
Gert Doering wrote:
2005-03-04:
14:00 UTC: 10-element AS-set
14:30 UTC: withdrawal
16:00 UTC: 25-element AS-set
16:30 UTC: withdrawal
Please do not announce AS-sets that contain 5539.  We are not part of
your experiment, and we don't want to see our AS appear in other people's
router error messages.
Ok, no problem: we will not include AS 5539 in any of the AS-sets we 
announce.

Regards,
Lorenzo


Re: More on Vonage service disruptions...

2005-03-02 Thread John Levine

 Yeah, I forgot about the regulation thing.  I suppose I'd give the
 ISP a call first, but I'd expect it to be working within a few
 hours.  But now that cable modem providers themselves are providing
 VoIP/dialtone, wouldn't those be regulated by the FCC?

The phone service is, the ISP isn't.  Cableco phone service is not the
same as what Vonage provides.  Vonage style VoIP is unflatteringly but
accurately called parasitic, it sits on top of someone else's network
connection without supporting that connection at all, competing with
any other IP traffic on the connection, with traffic going back to a
switch wherever the VoIP company is.

Cableco services use dedicated bandwidth on the cable separate from
your normal Internet connection to connect back to their own switch
which is typically on the cableco's own network.  It's engineered as
phone service and is designed to have performance and reliability much
more like regular phone service than often-flaky VoIP.

The particular case that Vonage has been complaining about is
apparently an ISP owned by a small rural telco.  Rural telcos tend to
have very low rates (since your local calling area is small) but high
costs (since they have few customers spread over a large area), with
the difference made up by universal service funds.  A large part of
the USF money is access fees on each minute of incoming or outgoing
phone calls, so if you use VoIP rather than POTS, the revenue they
lose is a lot more than the $20/mo or whatever the local phone rates
are.  The quality of management at those telcos varies a lot (mine is
pretty good, but others can barely find their own shoelaces) and it's
not at all surprising that one of them would panic and block
applications that are siphoning off their access minutes.

The solution is to rationalize USF so it's paid at reasonable rates to
whoever is providing service to high-cost customers, but the political
obstacles to doing so are high.  Western Wireless after a lot of
arguing got USF money to provide cell service to underserved or
unserved rural areas, but I've never heard of VoIP going that route.
Since you first have to admit you're a phone company to apply for the
USF gravy train, you can see why parasitic VoIP providers might feel a
little conflicted.

Regards,
John Levine, [EMAIL PROTECTED], Primary Perpetrator of The Internet for 
Dummies,
Information Superhighwayman wanna-be, http://www.johnlevine.com, Mayor
A book is a sneeze. - E.B. White, on the writing of Charlotte's Web






Comcast Contact. (was: RE: AOL scomp)

2005-03-02 Thread chuck goolsbee
Pardon my interruption of the ongoing discussion of SMTP trust models 
and FUSSPs (which I think is very important BTW), but if there is 
somebody from Comcast here that can help us solve an immediate 
related issue, please contact me or one of my postmasters off list?

Normal channels have been attempted unsuccessfully, for a problem 
that has been repeating itself every few days for the past two months.

--chuck goolsbee
digital.forest inc, seattle, wa http://www.forest.net
[EMAIL PROTECTED] - [EMAIL PROTECTED] - 206-838-1630 xt2001 - AIM:chuckgoolsbee
or
[EMAIL PROTECTED] - [EMAIL PROTECTED] - 877-720-0483 xt 2002
Thanks.
--


RE: More on Vonage service disruptions...

2005-03-02 Thread kwallace


Subject: Re: More on Vonage service disruptions...


 Yeah, I forgot about the regulation thing.  I suppose I'd give the ISP 
 a call first, but I'd expect it to be working within a few hours.  But 
 now that cable modem providers themselves are providing VoIP/dialtone, 
 wouldn't those be regulated by the FCC?

A few quick observations here (my own, personal opinion):
To paraphrase an earlier comment  a 90K stream is not an issue but what
about 10,000's of them?
In the circuit switched arena, the LEC's compensate each other for either
originating (toll free) or terminating traffic (LD) in a  regulated
environment. Thus there is some business reason to build the network out to
handle the level traffic. 
That is not the case here (with VoIP), as most ISP's are paying for
transport, peering connections, backhaul circuits, internal network
bandwidth, etc. The IP Phone providers may be paying THEIR ISP, but the $$'s
don't nescessarily  flow down to the ISP that the customer is connected to.
That end user's ISP must now pay more for transit, plus beef up their
internal network infrastructure to handle the additional traffic. That would
result in having to raise rates, perhaps making the previously viable, dirt
cheap, VoIP look like not so competitive a choice (vs. traditional dialtone)
to the end user anymore. 
A question to ponder - what would happen to your network , from both a
technical and financial perspective if all of your customers circuit
switched voice traffic suddenly became ip? 


Re: More on Vonage service disruptions...

2005-03-02 Thread Daniel Senie
At 09:46 AM 3/2/2005, you wrote:

advancedIPpipeline is running another article this morning
in their series of articles covering the Vonage service
disruptions that [allegedly] invlove an ISP port blocking
SIP connectitity between Vonage's client equipment and
Vonage's servers. While there is a bit more decriptive
detail in this article involving the nature of the service
interruptions, Vonage's CEO, Jeffrey Citron, is trying
to make a [in my opinion] weak argument that this type
of traffic blocking is akin to censorship.
Actually, anticompetitive, and restraint-of-trade come in as better 
arguments. They go along with blocking port 587/110, keeping users from 
getting at legitimate, well-run remote mail servers. The end user paid for 
packet service, and the Internet generally permits any protocol to be run. 
ISPs legitimately block traffic at various protocol levels to deal with 
security and abuse matters. That's unlikely with VOIP.

Blocking for dealing with security issues is one matter. Blocking to 
purposely harm competition is another, and will indeed open a can of worms 
if it persists. 



RE: More on Vonage service disruptions...

2005-03-02 Thread Jeff Rosowski
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

A question to ponder - what would happen to your network , from both a
technical and financial perspective if all of your customers circuit
switched voice traffic suddenly became ip?
Offer a Quality of Service product to enhance voice over IP services.
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RE: More on Vonage service disruptions...

2005-03-02 Thread andrew2

[EMAIL PROTECTED] wrote:
 Subject: Re: More on Vonage service disruptions...
 
 
 Yeah, I forgot about the regulation thing.  I suppose I'd give the
 ISP a call first, but I'd expect it to be working within a few
 hours.  But now that cable modem providers themselves are providing
 VoIP/dialtone, wouldn't those be regulated by the FCC?
 
 A few quick observations here (my own, personal opinion):
 To paraphrase an earlier comment  a 90K stream is not an
 issue but what about 10,000's of them?
 In the circuit switched arena, the LEC's compensate each
 other for either originating (toll free) or terminating
 traffic (LD) in a  regulated environment. Thus there is some
 business reason to build the network out to handle the level traffic.
 That is not the case here (with VoIP), as most ISP's are
 paying for transport, peering connections, backhaul circuits,
 internal network bandwidth, etc. The IP Phone providers may
 be paying THEIR ISP, but the $$'s don't nescessarily  flow
 down to the ISP that the customer is connected to.
 That end user's ISP must now pay more for transit, plus beef
 up their internal network infrastructure to handle the
 additional traffic. That would result in having to raise
 rates, perhaps making the previously viable, dirt cheap, VoIP
 look like not so competitive a choice (vs. traditional
 dialtone) to the end user anymore.
 A question to ponder - what would happen to your network ,
 from both a technical and financial perspective if all of
 your customers circuit switched voice traffic suddenly became ip?

I think you answered your own question.  ISP's would have to raise
rates, and voip may suddenly be not as attractive a choice for phone
service.  It seems to me that market forces will handle this problem
rather nicely on their own.  Right now VoIP providers and users are
getting a bit of a free lunch.  It's certain not to last.

Andrew




RE: More on Vonage service disruptions...

2005-03-02 Thread Fergie (Paul Ferguson)


Ah, and therein lies the rub.

Any sort of QoS frob that is implemented for VoIP
(or any other traffic for that matter) _must_ be
truly honored end-to-end, and at every intermediate
hop in between, for it to be guaranteed  -- otherwise
when traffic that you may designate as higher quality
is handed off to another administrative domain that
does not honor your traffic classifications, all bets
are off.

If you do not own the end-to-end network
infrastructure, there is no way to guarantee any
preferential handling of any particular subset of
traffic.

- ferg (who has been down this QoS road a few times before)


-- Jeff Rosowski [EMAIL PROTECTED] wrote:

 A question to ponder - what would happen to your network , from both a
 technical and financial perspective if all of your customers circuit
 switched voice traffic suddenly became ip?

Offer a Quality of Service product to enhance voice over IP services.

--
Fergie, a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 [EMAIL PROTECTED] or
 [EMAIL PROTECTED]


Re: Heads up: Long AS-sets announced in the next few days

2005-03-02 Thread Kurt Erik Lindqvist

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


On 2005-03-02, at 19.38, James A. T. Rice wrote:

 This seems to suggest that you are just picking ASns at random to 
 inject into the paths, and that you don't have a set of ASs which you 
 have the assignees permission to use.

Would't this then actually equate to resource hijacking along the lines 
of prefix hijacking? Who will be the first to hit the RIRs?

- - kurtis -

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RE: More on Vonage service disruptions...

2005-03-02 Thread Daniel Senie
At 01:24 PM 3/2/2005, you wrote:

Subject: Re: More on Vonage service disruptions...
 Yeah, I forgot about the regulation thing.  I suppose I'd give the ISP
 a call first, but I'd expect it to be working within a few hours.  But
 now that cable modem providers themselves are providing VoIP/dialtone,
 wouldn't those be regulated by the FCC?
A few quick observations here (my own, personal opinion):
To paraphrase an earlier comment  a 90K stream is not an issue but what
about 10,000's of them?
Did you (the ISP) sell customers a service saying they'd get 384Kbps 
upstream, 2Mbps downstream, or some such? And now you say that you can't 
handle that traffic load? False advertising?

In the circuit switched arena, the LEC's compensate each other for either
originating (toll free) or terminating traffic (LD) in a  regulated
environment. Thus there is some business reason to build the network out to
handle the level traffic.
That is not the case here (with VoIP), as most ISP's are paying for
transport, peering connections, backhaul circuits, internal network
bandwidth, etc. The IP Phone providers may be paying THEIR ISP, but the $$'s
don't nescessarily  flow down to the ISP that the customer is connected to.
ISPs charge for a service of pushing packets around, and make commitments 
about the amount of that traffic. That it's digitized voice in those 
packets isn't really the ISP's business. If you can't meet your commitments 
to your customers for bandwidth, you need to buy more. Of course you 
oversell your bandwidth, but that's NOT your customer's problem, it's yours.

That end user's ISP must now pay more for transit, plus beef up their
internal network infrastructure to handle the additional traffic. That would
result in having to raise rates, perhaps making the previously viable, dirt
cheap, VoIP look like not so competitive a choice (vs. traditional dialtone)
to the end user anymore.
If the user is instead playing an interactive game with a friend in another 
city, do you wish to block that too? How about a PC-to-PC video chat? How 
about remote corporate offices using VPNs to push lots of traffic around?

What are you selling your customers? If your rates don't cover your costs, 
then your business model is broken. You made a commitment to customers for 
an amount of bandwidth, and now the customers are actually starting to use 
it. The problem is one for your board room. If you built your network 
assuming the only traffic would be Email (to your own servers) and Web 
(which you cache on your own servers) then you are in for trouble. The 
Internet is not email and web. That many users are only recently learning 
that is not their problem.

A question to ponder - what would happen to your network , from both a
technical and financial perspective if all of your customers circuit
switched voice traffic suddenly became ip?
You raise good points, but I'd encourage you to decouple them from VOIP, as 
most any application could cause the same.




Re: AOL scomp

2005-03-02 Thread Gary E. Miller

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Yo Joe!

On Tue, 1 Mar 2005, Joe Maimon wrote:

 Apparently the ratio of valid/invalid AOL notifications is a usefull indicator
 on the cleanliness of the relevant network.

Or it just may tell you the clue level of the recipients.  I run a
mail server that only sends alerts to paying customers.  These customers
pay several hundred dollars a year for these alerts.  The subject line
and body text are clearly tagged as to the sedning source.  AOL users
STILL report it as spam!  I have tried to get AOL to whitelist our server
but no luck.

RGDS
GARY
- ---
Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701
[EMAIL PROTECTED]  Tel:+1(541)382-8588 Fax: +1(541)382-8676

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So, anyone still using Redbus?

2005-03-02 Thread Joe Johnson

Ouch . . . http://www.theregister.co.uk/2005/03/01/rebdus_power_failure/.
 
 
Sincerely,
 
Joe Johson
www.JoeLovesDreamweaver.com 
[EMAIL PROTECTED]



Re: Heads up: Long AS-sets announced in the next few days

2005-03-02 Thread Lorenzo Colitti
James A. T. Rice wrote:
This seems to suggest that you are just picking ASns at random to inject 
into the paths, and that you don't have a set of ASs which you have the 
assignees permission to use.

In which case please keep AS8330, AS8550, and AS8943 out of your 
experiments too.

Using not yet allocated ASns out of RIPEs asn-blocks would have been 
more sensible, IMHO.
James,
we are not picking ASes at random. The AS-set announcements are part of 
new techniques we are developing for ISPs who wish to discover how their 
prefixes are seen by the rest of the Internet. We believe this will come 
to be a useful tool for operators.

However, since this is still work in progress, and in scientific 
research there is no room for second place, I can't really reveal any 
more than that at the moment.

I would like to point out, though, that our research group does have a 
proven track record in the field network discovery (examples available 
on request), and has created software useful to the operator community 
such as BGPlay [1][2].

That said, if you want us to exclude those ASes from our AS-sets, then 
we will do so.


Regards,
Lorenzo
[1] http://www.ris.ripe.net/bgplay/
[2] http://bgplay.routeviews.org/bgplay/


Re: So, anyone still using Redbus?

2005-03-02 Thread Brandon Butterworth

Sure, the other two buildings still work. Hex has had a history of
power problems. I'm in Sovereign and it's been OK so far.

Of course we have other buildings as anything can break (e.g. 25 Broadway)

   We host ecommerce sites turning over million of pounds, 
pay redbus a significant amount of money for their service

sounds like they need to spend some of those millions on site
redundacy

brandon


Re: More on Vonage service disruptions...

2005-03-02 Thread Robert M. Enger


The subject is of most concern at the edge.
There are multiple long-haul providers, but often
the consumer has only one option for multi-megabit connectivity.

The entity currently enjoying the edge monopoly attempts to
create vertical service alignment, to maximize profit.
They DON'T want to provide packet data service,
they want to provide ALL services (control content, filter, etc).
This is not a technical matter, it's senior staff maximizing rate of return.

To diverge from VoIP, an interesting situation will present itself
in the future.  Verizon is installing FTTH.  Data offerings
in their present service area are: 5, 15, and 30Mbps downstream.
http://www22.verizon.com/fiosforhome/channels/fios/root/package.asp
These speeds would support broadcast quality video delivery
(even HD quality)  if properly implemented.

As hot a topic as voice is, the total money involved is decreasing.
Video services, however, still represent a huge revenue stream.
Will Verizon be a pure pipe provider?  Or, will they attempt to control 
services?

It would be nice to see Comcast get some meaningful competition.
Till now, they could never find the money to upgrade or maintain their
RF plant, but they had money available to pursue acquisition of Disney...

As troublesome as VoIP may (appear) to be, imagine video.
Very high duty-cycle, multi-megabit streams.  36ccs, so to speak.

But, content creators could sell directly to end users.
Potentially, no cable company, no TV networks.
Perhaps even the studio structure will collapse.

A lot depends on how well the FTTH providers, and their
long-haul backbone partners do their job.  Whether they
embrace disruptive change, or resist it as an annoyance to their routine.




Re: More on Vonage service disruptions...

2005-03-02 Thread Adi Linden

 Actually, anticompetitive, and restraint-of-trade come in as better
 arguments. They go along with blocking port 587/110, keeping users from
 getting at legitimate, well-run remote mail servers. The end user paid for
 packet service, and the Internet generally permits any protocol to be run.
 ISPs legitimately block traffic at various protocol levels to deal with
 security and abuse matters. That's unlikely with VOIP.

 Blocking for dealing with security issues is one matter. Blocking to
 purposely harm competition is another, and will indeed open a can of worms
 if it persists.

The anticompettive argument is pretty dangerous. What if ISP A has VoIP
serice offering and is provisioning QoS for their VoIP service. At the
same time they are not providing any QoS for competing services or even
degrade service quality for competitors via bandwidth management.

From the ISPs perspective it makes perfect sense to beef up bandwidth to
offer VoIP to be able to carry traffic from paying VoIP subscribers. But
it doesn't make sense to beef up bandwidth to support the competition.

What it'll come down to is a definition of what services you average
ISP provides. What is internet access, a raw pipe to that indiscriminately
moves any packet from point A to point B? Obviously not, since there are
already restrictions on running servers, blocking of smtp, etc. So it is
perfectly reasonable, IMHO, for an ISP to regulate bandwidth availability
to please the majority of paying customers.

Adi


Re: More on Vonage service disruptions...

2005-03-02 Thread Network.Security

So...how much of the revenue stream is built around the actual
facilities (i.e. copper, fiber, etc) ownership monopoly?  Shouldn't
senior staff recognize the short-sightedness of building one revenue
stream from two distinct sources: one content delivery and one plant
ownership?  Sell access first for a profit and then add ala carte
services for a profit, don't mix them.

Brad Swanson
[EMAIL PROTECTED]



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Robert M. Enger
Sent: Wednesday, March 02, 2005 1:57 PM
To: Fergie (Paul Ferguson); nanog@merit.edu
Subject: Re: More on Vonage service disruptions...



The subject is of most concern at the edge.
There are multiple long-haul providers, but often the consumer has only
one option for multi-megabit connectivity.

The entity currently enjoying the edge monopoly attempts to create
vertical service alignment, to maximize profit.
They DON'T want to provide packet data service, they want to provide ALL
services (control content, filter, etc).
This is not a technical matter, it's senior staff maximizing rate of
return.

To diverge from VoIP, an interesting situation will present itself in
the future.  Verizon is installing FTTH.  Data offerings in their
present service area are: 5, 15, and 30Mbps downstream.
http://www22.verizon.com/fiosforhome/channels/fios/root/package.asp
These speeds would support broadcast quality video delivery (even HD
quality)  if properly implemented.

As hot a topic as voice is, the total money involved is decreasing.
Video services, however, still represent a huge revenue stream.
Will Verizon be a pure pipe provider?  Or, will they attempt to control
services?

It would be nice to see Comcast get some meaningful competition.
Till now, they could never find the money to upgrade or maintain their
RF plant, but they had money available to pursue acquisition of
Disney...

As troublesome as VoIP may (appear) to be, imagine video.
Very high duty-cycle, multi-megabit streams.  36ccs, so to speak.

But, content creators could sell directly to end users.
Potentially, no cable company, no TV networks.
Perhaps even the studio structure will collapse.

A lot depends on how well the FTTH providers, and their long-haul
backbone partners do their job.  Whether they embrace disruptive change,
or resist it as an annoyance to their routine.




Re: Internet Email Services Association

2005-03-02 Thread Niels Bakker

* [EMAIL PROTECTED] (Todd Vierling) [Tue 01 Mar 2005, 19:18 CET]:
 On Tue, 1 Mar 2005 [EMAIL PROTECTED] wrote:
[..]
 These core operators sign up to a multilateral mail peering agreement
 and provide email transit services for other operators.

 The next layer is the non-core email service providers who have
 bilateral mail peering agreements with one or more core email transport
 providers.
 
 Contrary to what you said before, this *IS* the UUCP model in a
 nutshell. It has been done before, it does not scale, and it does not
 fit the way business works today.

It looks more like the way the GPRS roaming world has been set up by a
few telcos.  I don't think that's how you necessarily want to shape your
e-mail roaming agreements, let alone *all* e-mail exchanges.


-- Niels.

-- 
  The idle mind is the devil's playground


Re: AOL scomp

2005-03-02 Thread Suresh Ramasubramanian

On Wed, 2 Mar 2005 11:15:51 -0500 (EST), Todd Vierling [EMAIL PROTECTED] 
wrote:
 
 Your third option is best.  (Excuse the signature-pun.  :)
 
 SRS does not require SPF, and provides auditability for forwarded mail:
 
 http://spf.pobox.com/srs.html
 

In which case dont futz about with SES (thats yet another name for SRS
i think, I prefer to think I'm the only SRS around) - use BATV
instead.  Its  specced for exactly what #3 says.

srs

-- 
Suresh Ramasubramanian ([EMAIL PROTECTED])


Re: Is anyone actually using OER to do traffic shaping/balancing?

2005-03-02 Thread Chris A. Epler
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Drew Weaver wrote:
| Hit me offlist if you have experience with this actually
| working for you.
I'd be interested in seeing a summary of responses on-list if you
wouldn't mind.
- --
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~ \ / ASCII RIBBON CAMPAIGN
~  XAGAINST HTML MAIL
~ / \
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Localizing traffic using BGP

2005-03-02 Thread Ashe Canvar

Hello all,

BGP design question. My scenario is very much like an online gaming
company with servers on multiple continents.

Details :
 1. I have datacenters/servers in many POPs globally. 
 2. I am a stub AS with  multiple ISPs available at each POP. 
 3. I do not have the resources to buy dedicated fiber to link these
POPs, so my backbone is essentially a bunch of VPN tunnels.
 4. I own a /21. Of which I announce /24's.
 5. I have a mechanism to allocate client sessions to any ONE of the
POPs based on network performance (which is what I want to optimize).

Questions :

 I presently announce different /24's out of different POPs to
localize traffic. All these prefixes are announced from the same AS
number. This obviously can't be best practice. Are there any published
BCPs or RFCs tackling this issue ?

 Is it recommened that I get multiple AS numbers and announce
symmetrically from each smaller AS ? Or should I announce
inconsistently from different locations ?

Thanks!


Re: More on Vonage service disruptions...

2005-03-02 Thread JC Dill
Patrick Muldoon wrote:
What is more stable where you are, your broadband connection or your
telephone line to your LEC? (if you still have one).  I know in my case
at home, the phone line was much more reliable, then my cable modem.  I
can count the times on 1 hand that I had been without Dial tone in the
last 3 years (And I live in a rural area), but my cable modem connection
goes out at least once a month. 

You are starting with a faulty assumption - that you *know* when your 
phone service has been interrupted.  Unless you have some sort of 
special dialtone test going 24x7x365, you have no way of knowing when 
your phone service was unavailable except if that unavailability 
coincided with a time when you tried to place a call.  If it coincided 
with a time when someone tried to dial into you, they most likely didn't 
realize that their inability to reach you was due to a service 
interruption and probably didn't notify you about the problem if/when 
they were able to reach you at a later time.

Where I am (in the geographic center of Silicon Valley) we have had 
power interruptions significant enough to reset digital clocks at least 
5 times in the past 12 months.  I suspect that POTS has been similarly 
interrupted even if I don't have any direct evidence of those interruptions.

jc


RE: More on Vonage service disruptions...

2005-03-02 Thread Greg Boehnlein

On Wed, 2 Mar 2005, Fergie (Paul Ferguson) wrote:

 Ah, and therein lies the rub.
 
 Any sort of QoS frob that is implemented for VoIP
 (or any other traffic for that matter) _must_ be
 truly honored end-to-end, and at every intermediate
 hop in between, for it to be guaranteed  -- otherwise
 when traffic that you may designate as higher quality
 is handed off to another administrative domain that
 does not honor your traffic classifications, all bets
 are off.
 
 If you do not own the end-to-end network
 infrastructure, there is no way to guarantee any
 preferential handling of any particular subset of
 traffic.

So, set your Rate-Limiting of SIP traffic to 1 packet per second for the 
network that YOU control and then offer your VoIP subscribers a different 
QOS profile at a higher cost.

Bingo, problem solved. The economy will work itself out.

-- 
Vice President of N2Net, a New Age Consulting Service, Inc. Company
 http://www.n2net.net Where everything clicks into place!
 KP-216-121-ST





RE: Heads up: Long AS-sets announced in the next few days

2005-03-02 Thread David Schwartz


 Ok, I realize I might have given the wrong impression here. Sorry.

 So here's what we are doing: by artificially inserting ASes into the
 AS-set of an announcement, the ISP that makes the announcement can
 control where the announcement is propagated and thus discover paths
 followed by its announcements that are not usually visible, giving it a
 more complete knowledge of network topology in the vicinity.

Please just clarify the following point: do you intend to advertise 
paths
containing AS numbers belonging to other entities on the public Internet
without the permission of the owners of those AS numbers? You admit that you
don't know what the consequences of this injection will be.

It seems to me that there are enough issues with this type of
experimentation *with* the permission of the AS numbers you plan to use. But
the ethical issues with using them without such permission seems to me to be
insurmountable.

DS




Re: Localizing traffic using BGP

2005-03-02 Thread Fergie (Paul Ferguson)


Well, the most specific prefix wins in the forwarding
selection process, but I won't make any comments on
best current practice since best is somewhat
relative to the idea of max-aggregation but
this reference might help:

G. Huston
Request for Comments: 3221
Commentary on Inter-Domain Routing in the Internet
ftp://ftp.rfc-editor.org/in-notes/rfc3221.txt


[snip]

5.4  Lack of Common Operational Practices

   There is considerable evidence of a lack of uniformity of operational
   practices within the inter-domain routing space.  This includes the
   use and setting of prefix filters, the use and setting of route
   damping parameters and level of verification undertaken on BGP
   advertisements by both the advertiser and the recipient.  There is
   some extent of 'noise' in the routing table where advertisements
   appear to be propagated well beyond their intended domain of
   applicability, and also where withdrawals and advertisements are not
   being adequately damped close to the origin of the route flap.  This
   diversity of operating practices also extends to policies of
   accepting advertisements that are more specific advertisements of
   existing provider blocks.

[snip]

- ferg

-- Ashe Canvar [EMAIL PROTECTED] wrote:


Hello all,

BGP design question. My scenario is very much like an online gaming
company with servers on multiple continents.

Details :
 1. I have datacenters/servers in many POPs globally. 
 2. I am a stub AS with  multiple ISPs available at each POP. 
 3. I do not have the resources to buy dedicated fiber to link these
POPs, so my backbone is essentially a bunch of VPN tunnels.
 4. I own a /21. Of which I announce /24's.
 5. I have a mechanism to allocate client sessions to any ONE of the
POPs based on network performance (which is what I want to optimize).

Questions :

 I presently announce different /24's out of different POPs to
localize traffic. All these prefixes are announced from the same AS
number. This obviously can't be best practice. Are there any published
BCPs or RFCs tackling this issue ?

 Is it recommened that I get multiple AS numbers and announce
symmetrically from each smaller AS ? Or should I announce
inconsistently from different locations ?

Thanks!

--
Fergie, a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 [EMAIL PROTECTED] or
 [EMAIL PROTECTED]