Re: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Seth Mattinen
Kevin Loch wrote: > Seth Mattinen wrote: >> Jay Hennigan wrote: >>> "Tier 1", "tier 2" etc. are terms used primarily by salespeople, and >>> don't have a lot to do with technical matters. >>> >> >> Sure it does. If you're multihoming it will increase your AS path length. > > There is no general co

Re: OSPF vs IS-IS vs PrivateAS eBGP

2009-09-11 Thread Cord MacLeod
On Sep 11, 2009, at 6:23 PM, Randy Bush wrote: I seem to get the impression that isis is preferred in the core. Any reasons why folks dont prefer to go with ospf? a bit harder to attack clnp (is-is) than ip (ospf) is-is a bit simpler to configure, though you can get a sick as you want. but d

Re: OSPF vs IS-IS vs PrivateAS eBGP

2009-09-11 Thread Fouant, Stefan
I can tell you one reason IS-IS has been traditionally preferred over OSPFv2 is due to it's use of TLVs, which makes IS-IS highly extensible and easy to support new features. I remember when we first rolled out MPLS code on our core routers at UUnet, support for traffic engineering extensions m

Re: OSPF vs IS-IS vs PrivateAS eBGP

2009-09-11 Thread Randy Bush
> I seem to get the impression that isis is preferred in the core. Any > reasons why folks dont prefer to go with ospf? a bit harder to attack clnp (is-is) than ip (ospf) is-is a bit simpler to configure, though you can get a sick as you want. but don't. a bit simpler to code, so worked and was

Re: OSPF vs IS-IS vs PrivateAS eBGP

2009-09-11 Thread Glen Kent
I seem to get the impression that isis is preferred in the core. Any reasons why folks dont prefer to go with ospf? Glen On Thu, Aug 20, 2009 at 3:36 PM, Randy Bush wrote: >> Unless you want your customers to have very substantial control over >> your internal network, don't use an SPF IGP like

Re: Dedicated Route Reflectors

2009-09-11 Thread joshua sahala
On 11 Sep, 2009, at 09:30, Serge Vautour wrote: Hello, We're in the process of planning for an MPLS network that will use BGP for signaling between PEs. This will be a BGP free Core (i.e. no BGP on the P routers). What are folks doing for iBGP in this case? Full Mesh? Full Mesh the Main

Re: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Kevin Loch
Seth Mattinen wrote: Jay Hennigan wrote: "Tier 1", "tier 2" etc. are terms used primarily by salespeople, and don't have a lot to do with technical matters. Sure it does. If you're multihoming it will increase your AS path length. There is no general correlation between AS path length and w

Re: Dedicated Route Reflectors

2009-09-11 Thread Pavel Stan
Hi there The RR vs Full Mesh depends on what how you would like to balance your exit/peering points across the network. If you have, say, 3 border routers in 3 different regions, you should need at least 3 RRs if you want each region having it's own preference for the external routes. I would adv

Re: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Seth Mattinen
andrew.clayba...@securian.com wrote: > Hello - my company currently has two connections with a single tier 1 ISP. > We are using the AS from our ISP at this time. In the next month we will > be implementing a third connection with a second tier 1 ISP, so we will now > be using our own AS number on

Re: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Seth Mattinen
Jay Hennigan wrote: > > "Tier 1", "tier 2" etc. are terms used primarily by salespeople, and > don't have a lot to do with technical matters. > Sure it does. If you're multihoming it will increase your AS path length. ~Seth

Re: Repeated Blacklisting / IP reputation

2009-09-11 Thread Martin Hannigan
On Fri, Sep 11, 2009 at 4:23 PM, David Conrad wrote: > Marty, > > > It's possible that not everything is above the table as well. >> > > Actually, no. The whole point in publishing the algorithm IANA is using in > allocating /8s is to allow anyone to verify for themselves we are following > th

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Christopher Hart
"Edible, self-replicating IP carriers are pretty special anyhow." Mainstream IPv6 Here we come! ;) On Fri, Sep 11, 2009 at 3:37 PM, Richard Bennett wrote: > If this news had come out a little earlier, some pigeon breeding programs > may have qualified for broadband stimulus grants. Edible, self-

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Richard Bennett
If this news had come out a little earlier, some pigeon breeding programs may have qualified for broadband stimulus grants. Edible, self-replicating IP carriers are pretty special anyhow. Scott Weeks wrote: --- n...@foobar.org wrote: So, good news all around. Let's hope that IP over carrier p

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Scott Weeks
--- n...@foobar.org wrote: So, good news all around. Let's hope that IP over carrier pigeon will soon become a thing of the past. - 4GB = 32Gb 32Gb in 2 hours is 4.45Mbps. That's a pretty good DSL upstream bandwidth. scott

RE: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Holmes,David A
The time should be measured in seconds for your BGP advertised prefixes to propagate to most of the Internet. It may take longer for some isolated ISP's to receive the routes. If you use the longest prefix method to advertise to your preferred ISP, a convergence to the backup ISP (where shorter pre

RE: SA pigeon 'faster than broadband'

2009-09-11 Thread Holmes,David A
This says more about current ADSL technology not really being "broadband" than it does about South Africa's telecommunications infrastructure. Doing the arithmetic, my Southern California AT&T 384/1.5 ADSL connection would take approximately 23 hours to transmit 32 Gb (4 GB x 8) with the 384 Kbps u

The Cidr Report

2009-09-11 Thread cidr-report
This report has been generated at Fri Sep 11 21:11:39 2009 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date

BGP Update Report

2009-09-11 Thread cidr-report
BGP Update Report Interval: 03-Sep-09 -to- 10-Sep-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919898231 9.2% 474.5 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration

[NANOG-announce] Tentative NANOG47 Agenda available!

2009-09-11 Thread David Meyer
Folks, The tentative agenda for NANOG47 is now available. See http://www.nanog.org/meetings/nanog47/agenda.php. Looking forward to seeing you all in Dearborn. Dave (for the NANOG PC) ___ NANOG-announce

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Nick Hilliard
On 11/09/2009 21:13, William Herrin wrote: 180kbps is more or less middle-of-the-road for ADSL. In terms of technology, it's about as close to bottom of the range as you can get. The south african incumbent, Telkom, have three different products, described here: http://www.telkom.co.za/pro

Re: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Jay Hennigan
andrew.clayba...@securian.com wrote: Hello - my company currently has two connections with a single tier 1 ISP. We are using the AS from our ISP at this time. In the next month we will be implementing a third connection with a second tier 1 ISP, so we will now be using our own AS number on all t

Re: Multi-homed implementation and BGP convergence time

2009-09-11 Thread Scott Weeks
--- andrew.clayba...@securian.com wrote: From: andrew.clayba...@securian.com own AS number, how much downtime will there be? So far the second ISP has only said that it could be hours for BGP to fully converge. We are looking for more detail about how long the outage will be and how widespread

Multi-homed implementation and BGP convergence time

2009-09-11 Thread Andrew . Claybaugh
Hello - my company currently has two connections with a single tier 1 ISP. We are using the AS from our ISP at this time. In the next month we will be implementing a third connection with a second tier 1 ISP, so we will now be using our own AS number on all three routers. My question is when we

Re: Repeated Blacklisting / IP reputation

2009-09-11 Thread David Conrad
Marty, On Sep 10, 2009, at 2:45 PM, Martin Hannigan wrote: Not sure when ICANN got into the business of economic bailouts, ?? The blog posting implies it: "AfriNIC and LACNIC have fewest IPv4 /8s and service the regions with the most developing economies. We decided that those RIRs shoul

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread William Herrin
On Fri, Sep 11, 2009 at 2:54 PM, Scott Weeks wrote: > Note this part, though. > > ""Several recommendations have, in the past, been made to the > customer but none of these have, to date, been accepted," Telkom's > Troy Hector told South Africa's Sapa news agency in an e-mail." > > It would be nice

RE: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Ray Sanders
If you are interested in an Orion-Like system, but can't foot the bill for it, maybe look at IpMonitor. Solarwinds acquired IpMonitor a while back, so their sales reps will try to sell you on Orion. I've had many years of good luck with it (IpMonitor) and Solarwinds seems to be handling the soft

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Chaim Rieger
Drew Weaver wrote: > Howdy, > > Can anyone suggest a network monitoring system that knows the difference > between a cisco 1701 and a GSR 12810/6500, etc? > > What I mean is, many times these days there are several different sub systems > you have to monitor inside of a router/switch and not j

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Charles Wyble
We use Cacti for this purpose, but it still requires creating custom datasources for the vendor-specific SNMP MIBs. +1 for cacti. I think pretty much everything requires bringing in the mibs and setting up mappings etc. I've used Nagios/Cacti/Ganglia/MRTG.

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Charles Wyble
Drew Weaver wrote: Ah, I was mainly interested in an Orion like system that actually has all of that kind of worked-in. Yeah I got that. I am not aware of anything that does that. Not to say it doesn't exist, but if it does it's somewhat well hidden. http://www.frank4dd.com/howto/nagios/c

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Larry Smith
On Fri September 11 2009 13:59, Drew Weaver wrote: > Howdy, > > Can anyone suggest a network monitoring system that knows the difference > between a cisco 1701 and a GSR 12810/6500, etc? > > What I mean is, many times these days there are several different sub > systems you have to monitor inside o

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Brandon Galbraith
On Fri, Sep 11, 2009 at 2:07 PM, Charles Wyble wrote: > > It all comes down to SNMP to the best of my knowledge. > > True. While you don't want the MRTG answer, I'd suggest looking at Cacti. There's a large library of device profiles people have put together so as to prevent you from having to hun

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread William Pitcock
On Fri, 2009-09-11 at 14:59 -0400, Drew Weaver wrote: > Howdy, > > Can anyone suggest a network monitoring system that knows the difference > between a cisco 1701 and a GSR 12810/6500, etc? > > What I mean is, many times these days there are several different sub systems > you have to monitor

RE: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Drew Weaver
Ah, I was mainly interested in an Orion like system that actually has all of that kind of worked-in. Thanks for the heads up. -Drew -Original Message- From: Charles Wyble [mailto:char...@thewybles.com] Sent: Friday, September 11, 2009 3:07 PM To: Drew Weaver Cc: NANOG list Subject: Re: I

Re: Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Charles Wyble
Most of these threads usually result in telling the poster to RTFM with a link to it :) I'm too lazy to link the manual. :) c-nsp has extensive archives with lots of questions about various specific SNMP mibs that weren't immediately evident from RTFM. It all comes down to SNMP to the best of

Intelligent network monitoring systems (commercial/open source, what have you)

2009-09-11 Thread Drew Weaver
Howdy, Can anyone suggest a network monitoring system that knows the difference between a cisco 1701 and a GSR 12810/6500, etc? What I mean is, many times these days there are several different sub systems you have to monitor inside of a router/switch and not just interface utilization, the "

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Scott Weeks
--- william.allen.simp...@gmail.com wrote: From: William Allen Simpson http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/africa/8248056.stm?ad=1 Update needed for RFC 1149 (1 April 1990), A Standard for the Transmission of IP Datagrams on Avian Carriers ---

Weekly Routing Table Report

2009-09-11 Thread Routing Analysis Role Account
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-st...@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith . Routing

RE: Network Ring

2009-09-11 Thread Holmes,David A
An additional requirement often overlooked by Metro Ethernet architects is to ensure that layer 3 multicast stateful protocols are implemented in the carrier equipment. In order to ensure that PIM (S,G) stateful packets are not flooded out all ports in customers' geographically-dispersed switches,

Dedicated Route Reflectors

2009-09-11 Thread Serge Vautour
Hello, We're in the process of planning for an MPLS network that will use BGP for signaling between PEs. This will be a BGP free Core (i.e. no BGP on the P routers). What are folks doing for iBGP in this case? Full Mesh? Full Mesh the Main POP PEs and Route Reflect to some outlining PEs? Are fo

Re: Route table prefix monitoring

2009-09-11 Thread Warren Kumari
On Sep 10, 2009, at 7:23 AM, Joel Jaeggli wrote: Olsen, Jason wrote: Howdy all, What I'm left thinking is that it would have been great if we'd had a snapshot of our core routing table as it stood hours or even days prior to this event occurring, so that I could compare it with our cur

Re: Blacklist

2009-09-11 Thread William Pitcock
On Fri, 2009-09-11 at 09:37 -0500, David Gower wrote: > We are an ISP and one of our users webmail account was hacked into (poor > passwd). Spam was sent out from it. We are black listed on Hotmail. I can't > find anyway to get off their list. Who do I contact? http://postmaster.live.com/ - it i

Re: NAP of Americas

2009-09-11 Thread Elmar K. Bins
xbanc...@telconet.net (Xavier Banchon) wrote: > Does anyone have issues with Internet connection through NAP of Americas? Yes - there's obviously been some failure on the DC power, which took the peering grid down (and a few ISPs, too). Session's have come up again around an hour ago. Btw - a

AW: NAP of Americas

2009-09-11 Thread Philipp.Reis
We do have problems since 13:27 CET BR Philipp -Ursprüngliche Nachricht- Von: Xavier Banchon [mailto:xbanc...@telconet.net] Gesendet: Freitag, 11. September 2009 15:11 An: nanog@nanog.org Betreff: NAP of Americas Hi Fellows, Does anyone have issues with Internet connection through NA

Blacklist

2009-09-11 Thread David Gower
We are an ISP and one of our users webmail account was hacked into (poor passwd). Spam was sent out from it. We are black listed on Hotmail. I can't find anyway to get off their list. Who do I contact? Thanks David Gower President Gower Computer Support, Inc. 903 597-9220

NAP of Americas

2009-09-11 Thread Xavier Banchon
Hi Fellows, Does anyone have issues with Internet connection through NAP of Americas? Kind Regards, Xavier Enviado desde mi BlackBerry de Movistar

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Steven M. Bellovin
On Fri, 11 Sep 2009 09:36:34 -0400 Jeff Kell wrote: > William Allen Simpson wrote: > > > > http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/africa/8248056.stm?ad=1 > > > > > > Update needed for RFC 1149 (1 April 1990), > > A Standard for the Transmission of IP Datagrams on Avi

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Michael Thomas
On 09/11/2009 06:36 AM, Jeff Kell wrote: William Allen Simpson wrote: http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/africa/8248056.stm?ad=1 Update needed for RFC 1149 (1 April 1990), A Standard for the Transmission of IP Datagrams on Avian Carriers Truly practical wit

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread Jeff Kell
William Allen Simpson wrote: > > http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/africa/8248056.stm?ad=1 > > > Update needed for RFC 1149 (1 April 1990), > A Standard for the Transmission of IP Datagrams on Avian Carriers Truly practical with today's storage media... if the W

Re: SA pigeon 'faster than broadband'

2009-09-11 Thread D'Arcy J.M. Cain
On Fri, 11 Sep 2009 05:43:07 -0400 William Allen Simpson wrote: > > http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/africa/8248056.stm?ad=1 Twenty five years ago we said "Never underestimate the bandwidth of a station wagon full of mag tapes hurtling down the highway." The

RE: NAP MIA peering problems

2009-09-11 Thread Allen Bass
Yes AT&T is having a major outage affecting both data and voice. * * * * * Allen Bass Manager, Technology Operations Arise Virtual Solutions Inc. 3450 Lakeside Drive, Suite 620 Miramar, Florida 33027 www.arise.com -Original Message- From: Wolfgang Nagele [mailto:wnag...@ripe.net] Sent:

Re: NAP MIA peering problems

2009-09-11 Thread Wolfgang Nagele
Hi, > Anybody seeing peerings down at NAP Miami (198.32.124.0/23)? Just recovered. Outage lasted about 1 hour. Regards, Wolfgang

RE: NAP MIA peering problems

2009-09-11 Thread Robert D. Scott
Major DC power issues at the NOTA. Robert D. Scott rob...@ufl.edu Senior Network Engineer 352-273-0113 Phone CNS - Network Services 352-392-2061 CNS Phone Tree University of Florida 352-392-9440 FAX Florida Lambda Rail 352-294-3571 FLR NOC Gai

NAP MIA peering problems

2009-09-11 Thread Wolfgang Nagele
Hi, Anybody seeing peerings down at NAP Miami (198.32.124.0/23)? Regards, Wolfgang

Re: Repeated Blacklisting / IP reputation

2009-09-11 Thread Joel Jaeggli
Benjamin Billon wrote: > >> Why don't we just blacklist everything and only whitelist those we know >> are good? >> >>> Note we all could start using IPv6 and avoid this problem altogether. >> > Yeah. When ISP will start receiving SMTP traffic in IPv6, they could > start to accept whiteliste

Re: Repeated Blacklisting / IP reputation

2009-09-11 Thread Joel Jaeggli
Peter Beckman wrote: > On Thu, 10 Sep 2009, Mark Andrews wrote: > >> What a load of rubbish. How is ARIN or any RIR/LIR supposed to >> know the intent of use? > > Why don't we just blacklist everything and only whitelist those we know > are good? > > Because the cost of determining who is

Re: Route table prefix monitoring

2009-09-11 Thread Joel Jaeggli
Olsen, Jason wrote: > Howdy all, > What I'm left thinking is that it would have been great if we'd had a > snapshot of our core routing table as it stood hours or even days prior > to this event occurring, so that I could compare it with our current > "broken" state, so the team could have seen

SA pigeon 'faster than broadband'

2009-09-11 Thread William Allen Simpson
http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/africa/8248056.stm?ad=1 Update needed for RFC 1149 (1 April 1990), A Standard for the Transmission of IP Datagrams on Avian Carriers

Re: Network Ring

2009-09-11 Thread ty chan
Does anyone have best practise for implementing those technologies ? I am currently doing a testing LAB with CISCO REP since i have a few Metro on hand. It works quite well in my LAB. There is one Request Time Out if the link break BUT it is physical layer not REP :) _