[j-nsp] SRX650 Cluster throughput

[Stefan Fouant]

On 4/24/2012 11:36 AM, Jeff Rooney wrote:
> So I'm doing some testing with an SRX 650 cluster(11.2R6.3) and am
> starting to see some odd throughput issues, being that this is my
> first SRX cluster, I'm most likely overlooking something minor.
>
> Physical setup is pretty basic, each srx has multiple links connected
> into its own switch, as well as two cross connects between the pair of
> SRX for control and fabric. The switches are connected with a 4 port
> portchannel. All interfaces are gig and negotiated to 1000m. Switches
> are catalyst 4948's, if that matters.
>
> SRX-node0 ------------sw0
>      | |                       | | |
> SRX-node1 ------------sw1
>
> I have two servers connected into sw0, when on the same vlan iperf udp
> tests show 900Mbits/sec and tcp tests show 940+Mbits/sec....so far so
> good. Moving one box to another vlan and a seperate reth, so traffic
> now traverses srx-node0...traffic plummets. Iperf udp shows
> 500Mbits/sec and tcp 317Mbits/sec. Prior to setting up the cluster I
> tested via a single SRX and saw 900Mbits/sec+ for both tcp and udp.
> Both hosts are on the same switch and traversing node0 which is also
> on the same switch. Each vlan terminates on its own reth.
>
> Any suggestions as to where to look next?

What are you using to generate traffic? Is it a single flow by any chance?

-- 
Stefan Fouant
JNCIE-SEC, JNCIE-SP, JNCIE-ENT, JNCI
Technical Trainer, Juniper Networks

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