Re: eBGP TTL matching requirement

On May 12, 2010, at 1:10 AM, Patrick W. Gilmore wrote: > No. Concur, but the original poster should also look at the GTSM, which doesn't do what he asked about but which does make use of TTL as a validation mechanism: ---

Re: BGP and convergence time

On Tue, May 11, 2010 at 09:31:51PM -0400, Jay Nakamura wrote: > Yes, I understand BFD. The question is, do carriers usually do BFD > with customers? And if they say no, are there other remedies? AT&T > doesn't seem to be even willing to change BGP timers. If anyone have > been able to talk AT&T

Re: BGP and convergence time

--- zeusda...@gmail.com wrote: From: Jay Nakamura AT&T doesn't seem to be even willing to change BGP timers. If anyone have been able to talk AT&T or Qwest in doing so, it would really help to You set the timers on your side and the two sides negoti

Re: BGP and convergence time

Yes, I understand BFD. The question is, do carriers usually do BFD with customers? And if they say no, are there other remedies? AT&T doesn't seem to be even willing to change BGP timers. If anyone have been able to talk AT&T or Qwest in doing so, it would really help to find out how they convi

Re: SFP+ ER and ZR

On Tue, May 11, 2010 at 04:24:42AM -0400, bas wrote: > Hi Guys, > > I thought ER and ZR SFP+ optics were not available (yet) due to power > and cooling "challenges". > > However on this site: http://www.excelight.com/products/datalink/sfpplus.asp > They offer both ER and ZR SFP+ optics. > > Has

Re: Dial Concentrators - TNT / APX8000 R.I.P.

On Wed, May 12, 2010 4:38 am, Justin Wilson wrote: > There are those ppl who just want to do e-mail, are comfortable with > dial-up, don¹t want to pay for than $5-10 for internet, and can¹t get > anything else. Indeed. The arguments for alternatives based on the fact theyre cheap, don't counter t

Re: BGP and convergence time

> I am looking for ways to detect neighbor being down faster so traffic > can be re-routed faster. BFD

DENOG 2 - Call for Participation and Papers

DENOG 2 - Call for Participation and Papers The second meeting of the German Network Operators Group (DENOG) will be held in Frankfurt, Germany on the 4th of November 2010. We are pleased to hereby invite applications for presentations or lightning talks to be held at this event. General Informat

Re: BGP and convergence time

On 5/11/2010 11:35, Jay Nakamura wrote: > So, we have two upstreams, both coming in on Ethernet. One of our > switch crashed and rebooted itself. Although we have other paths to > egress out the network, because the router's Ethernet interface didn't > go down, our router's BGP didn't realize the

BGP and convergence time

So, we have two upstreams, both coming in on Ethernet. One of our switch crashed and rebooted itself. Although we have other paths to egress out the network, because the router's Ethernet interface didn't go down, our router's BGP didn't realize the neighbor was down until default BGP timeout was

Re: eBGP TTL matching requirement

On May 11, 2010, at 1:55 PM, Vitto Capabianco wrote: > Is there a TTL value enforcment on EBGP session establishment No. -- TTFN, patrick > For some > reason I thought that both peers have to have the SAMe value? Is that > true? For example: > > default EBGP = TTL = 1 (if one end sends som

Re: Securing the BGP or controlling it?

On May 10, 2010, at 3:20 PM, Randy Bush wrote: >> this is a matter of risk analysis. No secure routing means we'll >> continue to see the occasional high profile outage which is dealt with >> very quickly. > > how soon we forget 7007, 128/8, ... over a day each, and global, and > very big netow

eBGP TTL matching requirement

Folks, Is there a TTL value enforcment on EBGP session establishment? For some reason I thought that both peers have to have the SAMe value? Is that true? For example: default EBGP = TTL = 1 (if one end sends something other than 1 in its OPEN message, we won't bring up the adjecancy) multihop

Re: Dial Concentrators - TNT / APX8000 R.I.P.

There are those ppl who just want to do e-mail, are comfortable with dial-up, don¹t want to pay for than $5-10 for internet, and can¹t get anything else. -- Justin Wilson http://www.mtin.net/blog Wisp Consulting ­ Tower Climbing ­ Network Support From: "Gregory J. Boehnlein" Date: Tue, 11 May

Re: Rugged wireless bridge

Hey Andrey, I've deployed Cisco Aironet 1300's for specifically what you're looking to do (as well as remote ATM connectivity). They are robust and have great centralized management tools if you have a large deployment. They're also very flexible and obviously have great support from the manufact

RE: Dial Concentrators - TNT / APX8000 R.I.P.

When I sold my business in January, we still had 4 PRI circuits that were providing Dial-Up access using Livingston Portmaster 3's. I bet those things will run for another 5 years! :) Dial Up still has a place in many areas where Broadband cannot cost-effectively reach. Better to have Dial Up than

RE: SFP+ ER and ZR

> -Original Message- > From: bas > Sent: Tuesday, May 11, 2010 1:25 AM > To: nanog > Subject: SFP+ ER and ZR > > Hi Guys, > > I thought ER and ZR SFP+ optics were not available (yet) due to power > and cooling "challenges". > > However on this site: > http://www.excelight.com/products/d

Re: Rugged wireless bridge

I've had multiple issues with the WAP200E units in the field-- from the Internal PoE cabling being crushed and not working properly, to finding some of the internal antennas wern't even soldered to the PCB properly. I'd definitely +1 on the ubiquiti stuff. however, they've been extremely solid.

Re: Dial Concentrators - TNT / APX8000 R.I.P.

30% of all people in the US (110 million) have no access to broadband. Large areas of my state have no access to broadband because its rural (Maine). Aastra CVX (it used to be a Nortel product.) --Curtis On 5/11/2010 11:29 AM, Joe Abley wrote: On 2010-05-11, at 11:08, Leo Bicknell wrote:

Re: Rugged wireless bridge

On 5/11/2010 9:36 AM, Andrey Khomyakov wrote: Hi all, I need to provide IP connectivity to an outdoor parking lot for security devices like a camera, and emergency phone and a gate. Does anyone have any suggestions on a wireless bridge and an outdoor rated switch if such exists? How do people pr

Re: Dial Concentrators - TNT / APX8000 R.I.P.

On 2010-05-11, at 11:08, Leo Bicknell wrote: > There comes a time when the old tech just doesn't make sense, even > if a small customer base still wants it. There will also no doubt continue to be many customers for whom dial is the only option. It's not long ago that I lived in such a house,

Re: Dial Concentrators - TNT / APX8000 R.I.P.

In a message written on Mon, May 10, 2010 at 11:28:42AM -0500, Jerry Bonner wrote: > I share a certain amount of love for this platform dating back to Ascend, but > what am I to do now? Obviously no one is making large investments in their > dial platform, but are there any other viable alternat

Re: Securing the BGP or controlling it?

Dear Danny; On May 11, 2010, at 10:13 AM, Danny McPherson wrote: On May 11, 2010, at 7:32 AM, Nick Hilliard wrote: Risk analysis is ass covering without the theatre. You collect data, make a judgement based on that data, and if it turns out that the judgement says that signed bgp updates

Re: BGP (in)security makes the AP wire

On Tue, 11 May 2010, Mmaad Dooog wrote: Is anyone going to jump on the irony of the last two paragraphs? Having to use the excessively rigid, slow, static, boring expensive PSTN to fix the cool, fast, flexible cheap, cool, fun Internet? That'll work just fine, of course. Until, that is, one o

Re: BGP (in)security makes the AP wire

In a message written on Sun, May 09, 2010 at 09:32:57AM -0400, Steven Bellovin wrote: > http://www.nytimes.com/aponline/2010/05/08/business/AP-US-TEC-Fragile-Internet.html > > It's a pretty reasonable article, too, though I don't know that I agree about > the "simplicity of the routing system"..

Re: Securing the BGP or controlling it?

On May 11, 2010, at 7:32 AM, Nick Hilliard wrote: > Risk analysis is ass covering without the theatre. You collect data, make > a judgement based on that data, and if it turns out that the judgement says > that signed bgp updates constitute more of a stability risk to network > operations than t

Re: Rugged wireless bridge

On 5/11/2010 6:57 AM, Truman Boyes wrote: > You can use a soekris embedded computer. (http://soekris.com/). You can put > the boards into rugged cases like this: > > http://socalfreenet.org/node/267 > > Here is the case: > > http://www.yourbroadbandstore.com/product.php?pid=201838 > > Kind reg

Re: Rugged wireless bridge

Lots of good stuff here http://www.wlanparts.com/ I have had good luck with the Ez-Bridge Lite On 5/11/2010 6:36 AM, Andrey Khomyakov wrote: Hi all, I need to provide IP connectivity to an outdoor parking lot for security devices like a camera, and emergency phone and a gate. Does anyone ha

Re: Rugged wireless bridge

You can use a soekris embedded computer. (http://soekris.com/). You can put the boards into rugged cases like this: http://socalfreenet.org/node/267 Here is the case: http://www.yourbroadbandstore.com/product.php?pid=201838 Kind regards, Truman On 11/05/2010, at 9:36 AM, Andrey Khomyakov wro

Re: IPv4 Multicast

On Tue, 11 May 2010, Rens wrote: Does anyone have any configuration examples for this or tutorials, everything on the net seems way to complex for my needs. Multicast Quick-Start Configuration Guide -- Mikae

Rugged wireless bridge

Hi all, I need to provide IP connectivity to an outdoor parking lot for security devices like a camera, and emergency phone and a gate. Does anyone have any suggestions on a wireless bridge and an outdoor rated switch if such exists? How do people provide IP to outdoor locations like a surface par

BGP (in)security makes the AP wire

Is anyone going to jump on the irony of the last two paragraphs? Having to use the excessively rigid, slow, static, boring expensive PSTN to fix the cool, fast, flexible cheap, cool, fun Internet? That'll work just fine, of course. Until, that is, one of the telcos in the path saves a few buc

Re: Securing the BGP or controlling it?

On 10/05/2010 20:20, Randy Bush wrote: > if something like those happen again, we are gonna be spending a lot of > time explaining our selves to people who wear funny clothes, and telling > them why it is not going to happen again if they let us keep our jobs. Yes, I have observed that people who

IPv4 Multicast

Hi all, I would like to setup a multicast server sending out some streams and having 10-50 receivers at one location across an existing IP backbone. Here is the setup: Receivers <=> Cisco 3560G <=> Cisco 7206VXR <=> IP BACKBONE (OSPF & BGP) <=> Cisco 7206VXR <=> Cisco 4503 <=> streaming

Re: Dial Concentrators - TNT / APX8000 R.I.P.

On 5/10/2010 6:36 PM, Mark Foster wrote: Does this not highlight a wider issue? I realise that dialup is hardly 'cutting edge' but there are providers out there with a significant number of dialup customers still on the books. Surely there's still a market for (what should be by now) a straightf

SFP+ ER and ZR

Hi Guys, I thought ER and ZR SFP+ optics were not available (yet) due to power and cooling "challenges". However on this site: http://www.excelight.com/products/datalink/sfpplus.asp They offer both ER and ZR SFP+ optics. Has anyone used or tested with these? If so with which equipment? Or have y