Re: Partial vs Full tables

On 08.06.2020 08.04, Saku Ytti wrote: On Mon, 8 Jun 2020 at 00:55, Ryan Woolley wrote: order of 2x) on even very-well-connected routers. This is implemented by Arista in the feature that Yang linked to with the URL containing "fib-compression", but the actual command is better named: "ip f

Re: Partial vs Full tables

On 08.06.2020 07.56, Jakob Heitz (jheitz) via NANOG wrote: FIB compression comes with some risks. When routes churn, there are certain cases when you have to decompress the FIB. Then, the FIB must have the space, or else OOPS. If a set of compressed routes has to change to decompress some and

Re: IP whitelisting in twitter (the joy of full tunnel VPN)

So it a little bit more complicated, seems that twitter permits authenticated access without rate-limiting, however it blocks access to not-connected users. On 23/5/20 3:46 μ.μ., Alfie Pates wrote: > ... to make sure I don't get locked out again. > > ETOOMANYPLATES > > ~a

Re: ACX5448

I’ve seen horror stories for almost every platform from every vendor over my time. It usually is caused from using the wrong device for the wrong purpose. If you know its limitations, and use it with in the bounds of its capabilities, you will have very few issues with the ACX5448. - Brian > O

Re: understanding IPv6

Hello Joel: The draft is supposed to be factual not divagations; if I went too far somewhere I need to fix the draft. As you said it is early personal submission. Multi links subnets are not a figment of my mind. We have millions of routers deployed that way, using RPL as the subnet routing pro

Re: understanding IPv6

Hello Baldur; There’s the hack that can be helpful and then there’s the proper solution. As for hacks, indeed snooping can help a lot. As it goes we went for ND and DHCP snooping rather than MLD and there are many reasons for that, reliability, Desire to know the address not just the snma group

Re: Partial vs Full tables

On Sun, Jun 7, 2020 at 11:07 PM Saku Ytti wrote: > I'll take my imagination boat from the dry docks and sail to 2035. Lot > of people still run Jericho ANET, it is the new CAT6500 PFC3. DFZ > won't fit it anymore without redundant-specifics. > Are we at all concerned that someone in the DFZ advert

Re: Partial vs Full tables

William Herrin wrote on 08/06/2020 18:53: 4 gigs and 2 cores is more than sufficient for a 1 gbps router at the current 800k routes 1gbps is residential access speed. Is this still useful in the dfz? Nick

Re: Partial vs Full tables

On Mon, Jun 08, 2020 at 07:14:01PM +0100, Nick Hilliard wrote: > William Herrin wrote on 08/06/2020 18:53: > >4 gigs and 2 cores is more than sufficient for a 1 gbps router at > >the current 800k routes > > 1gbps is residential access speed. Is this still useful in the dfz? Yes, it is. ... JG --

Re: Partial vs Full tables

These are the first steps to optimization. Hysteresis is another. They work in ideal cases. However, when coding, we need to consider all cases. How do you set the timer? The timer has to anticipate the future. It's like an automatic transmission. It can't anticipate the future. However, the worst

Outsourced NOC Solutions

Hi, My colleague and I may be running a new dark fiber network in the Northeast. We need an outsourced NOC to monitor for fiber cuts and serve as a contact point for customers. Am I wrong in believing that there should be a way of lighting a single pair in the cable and then monitoring it for

Spoofer Report for NANOG for May 2020

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address.

Re: Partial vs Full tables

On Mon, Jun 8, 2020 at 11:14 AM Nick Hilliard wrote: > William Herrin wrote on 08/06/2020 18:53: > > 4 gigs and 2 cores is more than sufficient for a 1 gbps router at > > the current 800k routes > 1gbps is residential access speed. Is this still useful in the dfz? Not really the point. You can g

Re: Outsourced NOC Solutions

It sounds like you don’t have an experienced fiber optic network engineer on the project yet. There is much more to facilities monitoring then just checking for disruption. I recommend that you either retain a consulting engineer or employ one during development. I’m sure operators here are happ

Re: Partial vs Full tables

I still know many ISPs that don't even come close to needing 1G of capacity and they serve hundreds of customers. I'd say it's still relevant. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "Nic

Re: Partial vs Full tables

On Mon, Jun 8, 2020 at 10:52 AM wrote: > Every "fast" FIB implementation I'm aware of takes a set of prefixes, stores > them in some sort of data structure, which can perform a longest-prefix > lookup on the destination address and eventually get to an actual physical > interface for forwarding

Re: Outsourced NOC Solutions

Hello, Yes, you can install a permanent OTDR meter on the fiber. Exfo used to have them but a very cost effective solution which we have been selling for years is the Adva ALM. https://www.adva.com/en/products/network-infrastructure-assurance/alm You can even monitor the actual customer fiber, si

Re: Outsourced NOC Solutions

On 6/8/20 2:24 PM, Rod Beck wrote: Hi, My colleague and I may be running a new dark fiber network in the Northeast. We need an outsourced NOC to monitor for fiber cuts and serve as a contact point for customers. Am I wrong in believing that there should be a way of lighting a single pair

Re: Outsourced NOC Solutions

On Mon, Jun 8, 2020 at 1:51 PM Miles Fidelman wrote: > And... parenthetically, if a single link failure impacts customers, you're > network is woefully badly designed. > Is that considered true by most leased dark fiber providers? If I'm leasing a dark fiber circuit from a provider, I generally e

Re: Outsourced NOC Solutions

without pilots... or a maintenance manager! Speaking of which, seeing this kind of question, from a VP at a company in the submarine cable business, would sure make me leery of leasing fiber from them, if there's an alternative.  Now, one would not necessarily expect a VP of Business Developme

Re: Outsourced NOC Solutions

Hello, I saw someone mentioned the ADVA ALM unit and I would agree that it is a great system to use. Just as another option you could check out the NTest Fiberwatch product as well: http://www.ntestinc.com/fiberwatch/ Austin K. From: NANOG on behalf of Miles

Re: Outsourced NOC Solutions

Thank you for the most useful comment on the thread so far! If I'm buying dark fiber, I'm expecting it to be a bunch of spliced glass from end to end. Maybe (maybe!) a connector or two for patching somewhere. However, something like this would be useful to sell "managed" dark fiber. You still ge

Re: Outsourced NOC Solutions

I would calm down, Miles. 😃 Dark fiber networks are built and usually maintained by the same construction company that installed them. And a dark fiber network does not even need a single full time optical engineer. If the cable is damaged, then the guys who installed it will repair it. All the

Re: Outsourced NOC Solutions

Exactly. Thanks very much , Roel. Just to clarify, this is a dark fiber network already built and will be repaired by the construction company that built it. I just a system to inform them as soon as the fibers are damaged. It is definitely not a plane and does not need a pilot. 🙂 Best, Roder

Re: Outsourced NOC Solutions

Miles? Who’s miles? I’m not talking about a full-time engineer for the life of the network, just for designing the infrastructure management before first customer light. -mel via cell On Jun 8, 2020, at 12:43 PM, Rod Beck wrote:  Exactly. Thanks very much , Roel. Just to clarify, this is a

Re: Outsourced NOC Solutions

On Mon, Jun 08, 2020 at 08:10:44PM +, Mel Beckman wrote: > > I???m not talking about a full-time engineer for the life of the network, > just for designing the infrastructure management before first customer light. > > -mel via cell > Dude, it's dark fiber. I for one, do _NOT_ in any shape

Re: Outsourced NOC Solutions

There is a middle ground between “not managing customer light” and “not managing anything” though. The Adva ALM solution that a few folks that have mentioned, along with others like Lucent SmartLGX, effectively bridge this gap by helping trace the precise location of cuts and even smaller scale

Re: Outsourced NOC Solutions

My understanding is that the OP wants to put the equipment on the fiber that he leases from a supplier. That’s the question -mel via cell > On Jun 8, 2020, at 2:38 PM, James Jun wrote: > > On Mon, Jun 08, 2020 at 08:10:44PM +, Mel Beckman wrote: >> >> I???m not talking about a full-time

Re: Outsourced NOC Solutions

Hrm, I got the impression from the OP that they're constructing a new network and contemplating lighting a single pair for telemetry and whole cable breaks. I did not get the impression that they were getting strands from someone else and lighting it for sale to customers. - Mike Hammett

Re: Partial vs Full tables

Juniper Networks has also tried using Bloom filters. https://patents.google.com/patent/US20170187624 I think the QFX10002 was the first product they made which used this approach. https://forums.juniper.net/t5/Archive/Juniper-QFX10002-Technical-Overview/ba-p/270358 On Mon, Jun 8, 2020 at 1:45 P

Re: Outsourced NOC Solutions

*Rod Beck*rod.beck at unitedcablecompany.com wrote I would calm down, Miles. 😃 Dark fiber networks are built and usuall

Re: Outsourced NOC Solutions

stop being a disrespectful little prick. On Mon, Jun 8, 2020 at 4:52 PM Miles Fidelman wrote: > *Rod Beck* rod.beck at unitedcablecompany.com > > wrote > > I would calm down, Miles. 😃 Dark fiber networks are built and usually > maintained by the same construction company that installed them. A

Re: Partial vs Full tables

There are many different tries -- see here for some examples. https://www.drdobbs.com/cpp/fast-ip-routing-with-lc-tries/184410638 And an enhancement to LC-tries http://www.diva-portal.org/smash/record.jsf?pid=diva2%3A469814&dswid=-2401 Then there are radix-n (n-ary trie) lookups, e.g. radix-4 wou

Re: Outsourced NOC Solutions

I ain't so little, and I'm old enough to call bullshit when I see it. On 6/8/20 8:04 PM, TJ Trout wrote: stop being a disrespectful little prick. On Mon, Jun 8, 2020 at 4:52 PM Miles Fidelman mailto:mfidel...@meetinghouse.net>> wrote: *Rod Beck*rod.beck at unitedcablecompany.com

Re: Outsourced NOC Solutions

The guy is asking a question, there is no need to act almighty if you dont have anything positive to add.Sent from my Samsung Galaxy smartphone. Original message From: Miles Fidelman Date: 09/06/2020 08:22 (GMT+08:00) To: Cc: nanog@nanog.org Subject: Re: Outsourced NOC Solut

Re: Outsourced NOC Solutions

On Mon, Jun 08, 2020 at 06:12:12PM -0400, Dave Cohen wrote: > There is a middle ground between ???not managing customer light??? and ???not > managing anything??? though. The Adva ALM solution that a few folks that have > mentioned, along with others like Lucent SmartLGX, effectively bridge this

Re: Outsourced NOC Solutions

On 6/8/20 3:01 PM, Matt Harris wrote: Is that considered true by most leased dark fiber providers? If I'm leasing a dark fiber circuit from a provider, I generally expect that what I'm leasing is in fact one [or more] physical strands of fiber - not a somehow redundant connection. Since he ment

Re: Outsourced NOC Solutions

United Cable Company is primarily a broker. To Rod's questions : Sure, you can light a pair and monitor it many different ways. However, as James has said already, most people who want dark fiber are going to want one pair of glass from A to Z with nothing in the middle at all that they don't kno

Re: Partial vs Full tables

On Tue, 9 Jun 2020 at 02:22, Josh Hoppes wrote: > Juniper Networks has also tried using Bloom filters. > > https://patents.google.com/patent/US20170187624 > > I think the QFX10002 was the first product they made which used this approach. > > https://forums.juniper.net/t5/Archive/Juniper-QFX10002-