Re: subrate SFP?

2013-08-31 Thread Saku Ytti
On (2013-08-30 11:30 -0400), Tim Durack wrote: It would be interesting to have some other smart SFP options too, like macsec for example... Or HQoS in a SFP, for that one port which kills your ability to get away with cheap L3-switch style box :) But tbh the moment you'll need control-plane

Re: subrate SFP?

2013-08-31 Thread Jimmy Hess
On Fri, Aug 30, 2013 at 6:42 AM, Jamie Bowden ja...@photon.com wrote: From: Saku Ytti [mailto:s...@ytti.fi] Considering that Dell and HP at least are shipping brand new hardware with IPMI/BMC/iLO/whatever management ports that can only speak 100mbit when every other Ethernet interface in the

Re: subrate SFP?

2013-08-31 Thread Charles N Wyble
On hp proliant gen8 servers with management and ilo on same port, with the server off the ports show up as 100mbps. Jimmy Hess mysi...@gmail.com wrote: On Fri, Aug 30, 2013 at 6:42 AM, Jamie Bowden ja...@photon.com wrote: From: Saku Ytti [mailto:s...@ytti.fi] Considering that Dell and HP at

Re: subrate SFP?

2013-08-31 Thread Joel Jaeggli
WOL uses 100Mb/s, the phy draws less that way. Sent from my iPhone On Aug 31, 2013, at 10:13, Charles N Wyble charles-li...@knownelement.com wrote: On hp proliant gen8 servers with management and ilo on same port, with the server off the ports show up as 100mbps. Jimmy Hess

Re: subrate SFP?

2013-08-31 Thread Nick B
Ah, I needed *another* reason to murder WOL in it's sleep. Thanks! Nick On Sat, Aug 31, 2013 at 3:38 PM, Joel Jaeggli joe...@bogus.com wrote: WOL uses 100Mb/s, the phy draws less that way. Sent from my iPhone On Aug 31, 2013, at 10:13, Charles N Wyble charles-li...@knownelement.com

Re: subrate SFP?

2013-08-31 Thread Jima
Unless I missed something, iLO is always on when the machine has power; as such, WOL shouldn't be coming into play on reasonably modern HP servers. (That said, the power draw is likely still the reason, although I can't readily confirm Charles' observation on my only rackmount Gen8.)

Re: subrate SFP?

2013-08-30 Thread Saku Ytti
to natively support 10M and 100M rates. Technically obviously solution to me would be subrate SFP, which presents itself as 1GE to host, offering 100M or 10M to client. This would obviously break QoS at the host as host would still think it's 1GE and SFP itself would need to drop+buffer

Re: subrate SFP?

2013-08-30 Thread Brandon Butterworth
There is absolutely no reason that you couldn't deliver 'media converter' or '2 port switch' in a SFP casing Yes, similar devices exist http://www.rad.com/10/SFP-Format-TDM-Pseudowire-Gateway/10267/ so it probably just needs more demand brandon

Re: subrate SFP?

2013-08-30 Thread Saku Ytti
I actually emailed RAD, MethodE and Avago yesterday and pitched the idea. MiTOP is my exact justification why it should technically be feasible. I guess it would be easier to pitch, if there would be commitment to buy, but I don't personally need many units, just 1-2 here and there. On 30

Re: subrate SFP?

2013-08-30 Thread sthaug
I actually emailed RAD, MethodE and Avago yesterday and pitched the idea. MiTOP is my exact justification why it should technically be feasible. I guess it would be easier to pitch, if there would be commitment to buy, but I don't personally need many units, just 1-2 here and there. I

RE: subrate SFP?

2013-08-30 Thread Jamie Bowden
From: Saku Ytti [mailto:s...@ytti.fi] I got quite a bit of replies from sellers selling me cuSFP, insisting they work. So I'd like to clear up on this. For 10/100 to work on SFP slot, the PHY in the host needs to be multirate. Exception is SGMII which supposedly supports magic mode where

Re: subrate SFP?

2013-08-30 Thread Tim Durack
I think this is a great idea. Maybe not a huge market, but I would buy them, instead of having to use dumb transceivers. It would be interesting to have some other smart SFP options too, like macsec for example... Tim: On Fri, Aug 30, 2013 at 5:00 AM, Saku Ytti s...@ytti.fi wrote: I actually

subrate SFP?

2013-08-29 Thread Saku Ytti
How do people deal with situation where you need =48 SFP/SFP+ ports, but you occasionally need one or two cu 10/100 ports? For some reason it's becoming quite rare for SFP port to natively support 10M and 100M rates. Technically obviously solution to me would be subrate SFP, which presents

Re: subrate SFP?

2013-08-29 Thread joel jaeggli
. For some reason it's becoming quite rare for SFP port to natively support 10M and 100M rates. Technically obviously solution to me would be subrate SFP, which presents itself as 1GE to host, offering 100M or 10M to client. This would obviously break QoS at the host as host would still think it's