The only way to power all 9 at the same time requires an XPS be installed, otherwise the maximum you can have is four. Either way though you are right and I agree with you 100%! The whole purpose of this technology is for redundancy, if you choose to have two power supplies in the master and no power supplies in the others you will be in a world of hurt when you lose a power supply, and probably lose most of your stack!
-----Original Message----- From: Matt Hill [mailto:[email protected]] Sent: Friday, July 09, 2010 4:05 PM To: Di Bias, Steve Cc: Mark Beynon; Tyson Scott; [email protected] Subject: Re: [OSL | CCIE_RS] OT: Cisco Catalyst 3750-X series?? I am not familiar with the power stacking but you can bet your arse that you should have a "PS required +1" number ob PSUs in the stack. Your 9 switches may be able run off three PSUs but if one blows up you all of a sudden have a down stack. I'd be adding the extra one all the time. Unless I have this completely wrong ;) Cheers, Matt CCIE #22386 CCSI #31207 On 10 July 2010 08:34, Di Bias, Steve <[email protected]> wrote: > Right so if you had 9 switches in your stack and decided to utilize > StackPower as well you would end up with 3 StackPower stacks within you > StackWise stack. > > Phew, that's a lot of stacks in this email! > > Steve Di Bias > Network Engineer - Information Systems Valley Health System - Las > Vegas Office - 702- 369-7594 Cell - 702-241-1801 > [email protected] > > > -----Original Message----- > From: Mark Beynon [mailto:[email protected]] > Sent: Friday, July 09, 2010 3:10 PM > To: Di Bias, Steve > Cc: Matt Hill; Tyson Scott; [email protected] > Subject: Re: [OSL | CCIE_RS] OT: Cisco Catalyst 3750-X series?? > > True, but the stack wise and stack power are independant, so you could > still stack all 9 switches with stack wise whilst powering them as > three stacks. > > Or atleast that is what we are told. > > Sent from my iPhone > > On 8 Jul 2010, at 15:53, "Di Bias, Steve" <[email protected]> > wrote: > >> One other caveat is that StackPower supports up to four switches >> only, whereas the StackWise technology supports up to nine devices >> per stack. So, there could be scenarios where you could have two >> StackPower stacks within the same StackWise group of switches, >> assuming you have more than 4 in an IDF. >> >> Luckily for me most of the IDF's have between 2 and 3 48 port >> switches, but good info incase others are considering the x series >> >> Steve Di Bias >> Network Engineer - Information Systems >> Valley Health System - Las Vegas >> Office - 702- 369-7594 >> Cell - 702-241-1801 >> [email protected] >> >> >> -----Original Message----- >> From: Matt Hill [mailto:[email protected]] >> Sent: Wednesday, July 07, 2010 4:18 PM >> To: Tyson Scott >> Cc: Di Bias, Steve; Bill; [email protected] >> Subject: Re: [OSL | CCIE_RS] OT: Cisco Catalyst 3750-X series?? >> >> I agree with the 3750X as it appears "on paper". >> >> As always with a v1.0 Caveat Emptor... Of course this wont matter >> when in 3 months when the IOS gets its first .1 release :) >> >> If it is power redundancy you are after then your 4500s certainly give >> you that. Then again you say you are using 3 x switches in each >> stack. That means you would have a whole 4506 taking up all those RU >> (with two empty slots and no no failed supervisor redundancy) when >> your 3x3750X will be taking up far less real estate! With >> "supervisor" (stack master) redundancy too... >> >> My cursory pros & cons list leans me towards 3750X. >> >> Cheers, >> Matt >> >> CCIE #22386 >> CCSI #31207 >> >> >> On 8 July 2010 07:09, Tyson Scott <[email protected]> wrote: >>> Fixed Chassis is always cheaper and the specs on the 3750X switches >>> is very >>> good. >>> >>> >>> >>> Regards, >>> >>> >>> >>> Tyson Scott - CCIE #13513 R&S, Security, and SP >>> >>> Managing Partner / Sr. Instructor - IPexpert, Inc. >>> >>> Mailto: [email protected] >>> >>> Telephone: +1.810.326.1444, ext. 208 >>> >>> Live Assistance, Please visit: www.ipexpert.com/chat >>> >>> eFax: +1.810.454.0130 >>> >>> >>> >>> IPexpert is a premier provider of Self-Study Workbooks, Video on >>> Demand, >>> Audio Tools, Online Hardware Rental and Classroom Training for the >>> Cisco >>> CCIE (R&S, Voice, Security & Service Provider) certification(s) with >>> training locations throughout the United States, Europe, South Asia >>> and >>> Australia. Be sure to visit our online communities at >>> www.ipexpert.com/communities and our public website at www.ipexpert.com >>> >>> >>> >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of Di Bias, >>> Steve >>> Sent: Wednesday, July 07, 2010 5:04 PM >>> To: Bill; [email protected] >>> Subject: Re: [OSL | CCIE_RS] OT: Cisco Catalyst 3750-X series?? >>> >>> >>> >>> From what I can tell it supports IEEE 802.3af PoE+. Depending upon >>> the >>> wattage of the power supplies you buy you can actually do up to 30W >>> of power >>> per port! >>> >>> >>> >>> Stev >>> >>> ________________________________ >>> >>> From: Bill [mailto:[email protected]] >>> Sent: Wednesday, July 07, 2010 1:53 PM >>> To: Di Bias, Steve; [email protected] >>> Subject: RE: [OSL | CCIE_RS] OT: Cisco Catalyst 3750-X series?? >>> >>> >>> >>> Do the new 3750-X support Enhanced POE for the new devices? That >>> was a key >>> feature that the 4500's supported. >>> >>> >>> >>> ________________________________ >>> >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of Di Bias, >>> Steve >>> Sent: Wednesday, July 07, 2010 3:46 PM >>> To: [email protected] >>> Subject: [OSL | CCIE_RS] OT: Cisco Catalyst 3750-X series?? >>> >>> >>> >>> Hey everyone, >>> >>> >>> >>> I was considering replacing some of our 3750 stacks with 4506-E's >>> but our >>> Cisco rep suggested we take a look at the *new* 3750-X series >>> instead. I'm >>> really interested in the new StackPower capabilities which gives >>> you power >>> redundancy within the stack. Also the power supplies are modular >>> with two >>> slots on each chassis. The uplink modules are also modular allowing >>> for 2 >>> 10gbE or 4 10GbE uplink ports. >>> >>> >>> >>> Has anyone seen these things in action yet? Any recommendations as to >>> staying with the 3750-X series or moving to a single 4506 chassis >>> for IDF's >>> that have 3 or more switches in the stack? Thanks in advance! >>> >>> >>> >>> Thank you, >>> >>> >>> >>> Steve Di Bias >>> >>> Network Engineer >>> >>> >>> >>> >>> UHS Confidentiality Notice: This e-mail message, including any >>> attachments, >>> is for the sole use of the intended recipient(s) and may contain >>> confidential and privileged information. Any unauthorized review, >>> use, >>> disclosure or distribution of this information is prohibited, and >>> may be >>> punishable by law. If this was sent to you in error, please notify >>> the >>> sender by reply e-mail and destroy all copies of the original >>> message. >>> >>> >>> UHS Confidentiality Notice: This e-mail message, including any >>> attachments, >>> is for the sole use of the intended recipient(s) and may contain >>> confidential and privileged information. Any unauthorized review, >>> use, >>> disclosure or distribution of this information is prohibited, and >>> may be >>> punishable by law. If this was sent to you in error, please notify >>> the >>> sender by reply e-mail and destroy all copies of the original >>> message. >>> >>> _______________________________________________ >>> For more information regarding industry leading CCIE Lab training, >>> please >>> visit www.ipexpert.com >>> >>> >> >> >> UHS Confidentiality Notice: This e-mail message, including any >> attachments, is for the sole use of the intended recipient (s) and >> may contain confidential and privileged information. Any >> unauthorized review, use, disclosure or distribution of this >> information is prohibited. If this was sent to you in error, please >> notify the sender by reply e-mail and destroy all copies of the >> original message. >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, >> please visit www.ipexpert.com > > > UHS Confidentiality Notice: This e-mail message, including any attachments, > is for the sole use of the intended recipient (s) and may contain > confidential and privileged information. Any unauthorized review, use, > disclosure or distribution of this information is prohibited. If this was > sent to you in error, please notify the sender by reply e-mail and destroy > all copies of the original message. > UHS Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient (s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this information is prohibited. If this was sent to you in error, please notify the sender by reply e-mail and destroy all copies of the original message. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
