[CentOS] [OT] Network switches
rob.townley at gmail.com
Tue Mar 24 17:15:18 UTC 2009
On Tue, Mar 24, 2009 at 10:59 AM, nate <centos at linuxpowered.net> wrote:
> Rainer Duffner wrote:
>> Switch performance is extremely difficult to measure IMO. You need
>> enough clients to make sure you're not accidentally measuring
> There's also a lot more to switches than pure performance, line
> rate switches have been around for at least a decade(switches
> that have enough bandwidth to have every port running at 100%
> If your running only a layer 2 network(who does that anymore?)
> then perhaps performance is the best measure, but for the
> well known top performing manufacturers of gear raw performance
> hasn't been something to be concerned about for some time in
> the 10/100 and GigE space.
i would not be surprised if most SOHO networks may not even have layer
How do you know it isn't something to be concerned about unless you
have data from various manufacturers and various NICs?
> Now 10GigE is still kind of new as far as high density line
> rate, most chassis switches are not even line rate if you
> fully populate them with 10Gig ports.
> IMO -
> (no particular order)
> HP - Good for the lifetime warranty, lower support(contract)
> costs. Advantages for an HP shop since they likely tie in
> nicely to HP management tools.
> Extreme - Mature next-gen linux-based OS that's easy to use,
> lots of advanced functionality included out of the
> box. With a couple exceptions, line rate for 10+ years.
> Force10 - Leader in port density and switch performance, though
> it's been a couple years since I've seen a new
> product, most of their products are 4+ years old but
> still compete extremely well even today. NetBSD next-gen
> OS, still kind of new. Line rate since their inception
> almost a decade ago. Looks like they just released a new
> 10gig chassis yesterday. Was the undisputed 10gig leader
> for a while, others have since caught up, though this
> new product may put them way ahead again haven't looked
> in depth.
> Foundry(now Brocade) - Another leader in port density and
> switch performance, best known perhaps for it's interface
> clone of IOS. So if your used to Cisco you can adapt to
> these pretty easily and get much better performance. Not
> sure where they are at on their next gen OS. Line rate
> for a long time, perhaps 10+ years too. Unlike Extreme
> and Force10 Foundry offers products targeted specifically
> to do high performance routing(NetIron), as well as
> load balancing(ServerIron). Most of their edge switches
> are 1.5U instead of 1U, though they include hot swap
> internal power supplies. Most vendors rely on external
> power supplies for redundancy. Foundry used to have some
> non Ethernet offerings(e.g. T1, DS3 etc), but have since
> like many others eliminated all non Ethernet products.
> Cisco - overpriced, under performing almost across the board, I'm
> looking at replacing some older Cisco 7300 routers(which
> they still sell), with something from Foundry, their LOW
> end router is more than seven hundred times faster than
> the Cisco 7300, and the price is comparable. Cisco has
> a broad range of operating systems. Management is
> incredibly complex. Can be a "one stop shop" for most things
> network related, but while they share a common brand don't
> let them fool you into making you think they are well
> integrated and easy to use.
> Juniper - Somewhat new to the basic switch space though their
> 48-port 1Gig 1U switches are feature packed with gobs of
> flash, RAM, hot swap fan trays and power supplies
> (rare for a 1U switch), and a very fast stacking port(over
> 100Gbps if I recall). Juniper is of course best known for
> it's routers, and more recently firewalls after it bought
> NetScreen(?) a few years ago. I think their new switches
> use the same BSD(FreeBSD perhaps?) based OS that their
> high end routers do, if so it's very mature on the
> software side.
> 3COM - Not familiar to much with their recent products though
> personally weary of the company itself, it's working hard
> to get back into the enterprise space after abandoning it
> a decade or more ago.
> Linksys/NetGear/D-link/etc - if this is your price point then
> that's your price point, I'd suggest at least getting
> a good set of layer 3 switches for the network core.
If you don't have metrics justifying thousands more for the same
number of ports, then it is hard to justify to the boss.
> I personally have kept very close eyes on Extreme, Force10 and
> Foundry's product lines for 5 years or so, and more recently
> looking at Juniper as well. The sort of technology behind these
> products is very interesting to me, I'm the sort of person who
> will spend hours reading data and spec sheets on them.
> I only have personal experience with Extreme, Cisco, and Linksys
> (1 switch).
> CentOS mailing list
> CentOS at centos.org
More information about the CentOS