Re: Brocade unsupported transceiver?

You need to program the passive dac to look like an active dac. Brocade wants active. Ping me if you want help. Eric Sent from my iPhone > On Mar 21, 2018, at 3:36 PM, Mike Hammett wrote: > > No one knows of such a command and apparently the VDX line is finicky with >

Re: Brocade unsupported transceiver?

Yes, and they (old hardware plateformes) support only passive DAC. I remember being bitten by this at the time. Tangent : hum 樂... doesn’t seem normal to me. Maybe a bug ?!? Best regards. > Le 21 mars 2018 à 23:36, Mike Hammett a écrit : > > No one knows of such a command

Re: Brocade unsupported transceiver?

No one knows of such a command and apparently the VDX line is finicky with what passive DACs they'll work with. I just ordered more of the ones I know that work. Tangent: Is it normal for these guys to still transmit light even when the interface is shut? - Mike Hammett

Re: Brocade unsupported transceiver?

Hi, We have been (and still) using all kinds of brocade hardware, including VDX from early NOS2.x AFAIK, I couldn’t find an equivalent command to « unsupported transceiver ». So you will always get a syslog message, but usually it won’t stop port from coming up. Regarding to optical

Re: Brocade unsupported transceiver?

More offlist messages I figured I'd address in one e-mail. VDX-6720 4.1.3b These are the ones that I know work: https://www.fs.com/products/36700.html https://www.fs.com/products/40120.html https://www.fs.com/products/36706.html - Mike Hammett Intelligent Computing Solutions

Re: How are you configuring BFD timers?

:: For those running BFD on your land-based point-to-point links, :: I’m interested in hearing about what factors you consider when :: deciding how to configure your timers and multiplier. It has been a while since I used BFD, but I remember trying to get it as close to what I wanted and

Re: Brocade unsupported transceiver?

I've had a few offlist responses looking for the same or about coded optics. I've been able to use Brocade -coded optics from FiberStore, but a DAC which should be universal (and passes the muster for the Intel NICs it's plugged into) returns, " 2018/03/21-15:14:00, [NSM-1028], 2679, DCE,

Brocade unsupported transceiver?

Anyone know if there is a command in Brocade NOS (4.x) to force the use of an unsupported transceiver? If so, what is it? - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com

Re: How are you configuring BFD timers?

On 2018-03-21 17:24, Job Snijders wrote: > Silly question perhaps, but why would you do BFD on dark fiber? Simple paranoia perhaps? Just because you only have layer 1 equipment (transponders) right now, doesn't guarantee that you won't need to stick in a layer 2 switch in the path tomorrow, and

Re: How are you configuring BFD timers?

They were ME3600s. AFAIR it was two of these things in a lab connected back to back with two links between them, one metric higher than the other. Some sort of traffic generator running between the two that would generate fixed size UDP frames at some tens of milliseconds interval, yanking

Re: hijacking of 128.255.192.0/22

Can someone from HE comment on how they are doing their filtering? We often see our routes leaked by them or their customers and it’s quite the problem and significantly contributes to the pollution in the routing table. Often friends and smaller providers come to me for help and the lack of

Re: How are you configuring BFD timers?

Which platform ? What context ? Best regards. > Le 21 mars 2018 à 18:10, Jason Lixfeld a écrit : > > A few years ago I did some testing and found that the time between the > transceiver detecting LOS and the routing protocol (ISIS in this case) being > informed that

Re: How are you configuring BFD timers?

A few years ago I did some testing and found that the time between the transceiver detecting LOS and the routing protocol (ISIS in this case) being informed that the link was down (triggering the recalculation) took longer than it took BFD to signal ISIS to recalculate. > On Mar 21, 2018, at

RE: RE: [EXT] Fwd: Re: problems sending to prodigy.net hosted email

LaBrea Tarpit http://labrea.sourceforge.net/ can do this as well, though perhaps only for IPv4. Basically it looks for unanswered ARP requests and answers them. What it does with the ensuing session data is configurable. --- The fact that there's a Highway to Hell but only a Stairway to

Re: How are you configuring BFD timers?

Right, BFD on a dark fiber link (should) be immediately detected and the detecting end should send a cease/stop/whatever message to the remote peer to drop the neighbor relationship. BFD really comes into it's own in a derived circuit (such as metro-E or other type setup) where you can have an

RE: How are you configuring BFD timers?

Correct, Luke. Best regards, Alex -Original Message- From: Luke Guillory (External) [mailto:lguill...@reservetele.com] Sent: Wednesday, March 21, 2018 12:37 PM To: Alex Lembesis; Job Snijders (External); Youssef Bengelloun-Zahr Cc: NANOG Subject: RE: How are you configuring BFD

RE: How are you configuring BFD timers?

He's asking because if it was dark the interface would go down when the link was lost and the router would pull routes. But PA to FL would lead me to believe it'll be a wave from some type of DWDM gear which brings us to BFD. Luke Guillory Vice President – Technology and Innovation Tel:

Re: How are you configuring BFD timers?

Wouldn't any tangible problem on a dark-fiber link result in an interface shutdown, ostensibly creating the trigger one would need to begin re-convergence? On 3/21/18 11:31 AM, Alex Lembesis wrote: To speed up BGP routing convergence. The (2x) dark fiber links from PA to FL are being used

RE: How are you configuring BFD timers?

To speed up BGP routing convergence. The (2x) dark fiber links from PA to FL are being used as Layer3 datacenter interconnects, where each datacenter has its own AS. The DF is also carrying FCIP traffic, so we need failover to be as fast as possible. Best regards, Alex -Original

Re: How are you configuring BFD timers?

Silly question perhaps, but why would you do BFD on dark fiber? Kind regards, Job

Telx Internet Exchange Atlanta

Is there anyone on the list from TelX with visibility into the Atlanta TIE ?

Re: How are you configuring BFD timers?

Using 200 ms / 200 ms / x3 on either metro dark fiber or longhaul waves (Paris / Frankfurt / Amsterdam) successfully. Best regards. Y. 2018-03-21 16:11 GMT+01:00 Alex Lembesis : > Using 250ms x 3 on fiber connecting Pennsylvania to Florida... > > Best regards, >

RE: How are you configuring BFD timers?

Using 250ms x 3 on fiber connecting Pennsylvania to Florida... Best regards, Alex -Original Message- From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Jason Lixfeld (External) Sent: Wednesday, March 21, 2018 9:10 AM To: NANOG Subject: How are you configuring BFD timers? Hey,

Re: How are you configuring BFD timers?

In practice, the vendor's recommendations regarding Routing Engine HA provide a lower bound. I'm just starting out with 1000ms x 3 multiplier, but my network is not national or global. I believe I could go as low as 500ms to keep HA happy. On Wed, Mar 21, 2018 at 09:10:28AM -0400, Jason

How are you configuring BFD timers?

Hey, For those running BFD on your land-based point-to-point links, I’m interested in hearing about what factors you consider when deciding how to configure your timers and multiplier. On paper, BFD between two devices over a local or metro dark fibre or wave seems pretty trivial: Assuming

TIMELY - Fwd: RIPE NCC Global IPv6 Deployment Survey

NANOGers - An important reminder: this Global IPv6 deployment survey is closing at the end of March. If you have a moment, please take the time to complete this survey so that the RIRs may collectively have a better understanding of the status of IPv6 deployment in the Internet. Thanks!