[olug] link aggregation question

Fri Aug 30 21:29:42 UTC 2013

I have two of that same netgear switch and am fairly happy with it. One is in an upstairs bedroom and the other next to my desk in my basement. They only have single gig uplinks to my main switch but for VLANS its hard to beat for the price.

My only complaint is that sometimes SNMP and the Web UI stops responding and I have to reboot it. It does not stop passing traffic when this happens though.

Here are my speedtests from a host on that switch to a server on a single gig uplink to my main Zyxel GS1910-24 (which is also a great option as well).

------------------------------------------------------------
Server listening on TCP port 5001
Binding to local address 10.0.4.101
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 10.0.4.101 port 5001 connected with 10.0.2.15 port 36964
bind failed: Address already in use
------------------------------------------------------------
Client connecting to 10.0.2.15, TCP port 5001
Binding to local address 10.0.4.101
TCP window size: 86.8 KByte (default)
------------------------------------------------------------
[  6] local 10.0.4.101 port 51736 connected with 10.0.2.15 port 5001
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-60.0 sec  1.14 GBytes   163 Mbits/sec
[  6]  0.0-60.0 sec  1.23 GBytes   175 Mbits/sec
[  5] local 10.0.4.101 port 5001 connected with 10.0.2.15 port 36980
bind failed: Address already in use
------------------------------------------------------------
Client connecting to 10.0.2.15, TCP port 5001
Binding to local address 10.0.4.101
TCP window size:  105 KByte (default)
------------------------------------------------------------
[  6] local 10.0.4.101 port 51737 connected with 10.0.2.15 port 5001
[  5]  0.0-60.0 sec  1.46 GBytes   209 Mbits/sec
[  6]  0.0-60.0 sec  1.35 GBytes   193 Mbits/sec

--Matt

On Fri, Aug 30, 2013 at 09:03:36PM +0000, Sheldon, Roger W wrote:
> This is for home use and 8/16 port switch will do. Using Synology DS1812+ NAS with jumbo frame support. A quick search and these would work - Netgear GS108T-200 and HP ProCurve 1810G-8. I just don't want to buy a piece of junk model that doesn't really perform. Looking to get about 100MB thru put. Right now I'm getting just over 60mbps on Raid 10.
> 
> 
> 
> Roger Sheldon
> Storage Engineer
> wk 402.777.7901
> cell 402.889.2585
> 
> 
> -----Original Message-----
> From: olug-bounces at olug.org [mailto:olug-bounces at olug.org] On Behalf Of Christopher Cashell
> Sent: Friday, August 30, 2013 3:07 PM
> To: Omaha Linux User Group
> Subject: Re: [olug] link aggregation question
> 
> On Fri, Aug 30, 2013 at 12:21 PM, Sheldon, Roger W < Roger.Sheldon at firstdata.com> wrote:
> 
> > Looking for a switch to support Link Aggregation 802.3ad (LACP) to 
> > trunk IP on NAS. Any recommends?
> >
> 
> Most managed switches will support 802.3ad.  What other requirements do you have?  How many ports do you need?  Is this for home or business environment?  Is this a one-off for the NAS, or will you be using it for anything else?  Do you need/want Jumbo Frame support (can improve performance for NAS for some workloads), and if so, do the NAS and servers (and their NICs) support it?
> 
> I haven't used them personally, but a friend of mine mentioned a small Netgear "smart" switch he purchased for home use a little while back.  I think it was 8 port, gigabit, and I know he said it supposed the basic common managed switch functions like VLANs and LACP.  I seem to recall it running a little under $100.
> 
> For home use, something like that (and I'm sure there are dozens of similar options from other vendors) would probably be a good bet.  It's also pretty easy to find slightly older models of more business oriented network hardware available used that would easily handle port aggregation, too.
> 
> For business use, there are a lot more considerations that can come into play.
> 
> Note: If this is primarily intended for traffic between 1 host and 1 NAS device, you are unlikely to see much performance improvement from the aggregated links.  With multiple servers accessing it, you'll start seeing the benefit.
> 
> 
> > Roger Sheldon
> >
> 
> --
> Christopher
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