Just out of interest, what is the cluster architecture where NAT at
10Gb/s is needed?
For internal WN to storage we have private networks on the storage
nodes. This can be done by VLANs to give them bot private and public
networks, then hacking the routing tables on the WNs to route file
locations with public storage node names over the private network.
I think this is a fairly common set up.
I have always assumed that WNs don't need high external bandwidth - is
this still valid? High external bandwidth comes only from FTS transfers
between storage nodes.
If this assumption is not valid I would very much like to know.
Simon
Mark Mitchell wrote:
> Hi Elena,
> I haven't attempted to run NAT on the 8024F at Glasgow. The command line
> guide doesn't have an entry for it as far as I can see.
> We use dedicated servers to do the NAT at Glasgow.
> If you are looking specifically for a router to do NAT at up to 10 Gbps
> then I would have a look at the Cisco 7200 but there are limitations on
> the high speed through put as the figures quoted for line speeds will
> relate to very specific tests.
> Hope this helps.
> Regards,
> Mark
>
>
> On 16 Nov 2011, at 13:17, Elena Korolkova wrote:
>
>> Hello
>>
>> as we do not have 10 Gb links in our cluster we want to start with
>> 8024F (as recommended).
>>
>> We need a router (ideally a simple one) capable of doing network
>> address translation (NAT) for the worker nodes in our DMZ (private
>> network) at high speed (ideally 10 Gb).
>> Does 824F has this functionality?
>>
>> many thanks
>> Elena
>> __________________________________________________
>> Dr Elena Korolkova
>> Email: [log in to unmask] <mailto:[log in to unmask]>
>> Tel.: +44 (0)114 2223553
>> Fax: +44 (0)114 2223555
>> Department of Physics and Astronomy
>> University of Sheffield
>> Sheffield, S3 7RH, United Kingdom
>
> --------------------------------------------
> Mark Mitchell,
> ScotGrid Technical Co-ordinator,
> Rm 481,
> Kelvin Building,
> School of Physics and Astronomy,
> University of Glasgow,
> G12 8QQ, UK
> Telephone: +44-141-330 6439
> E Mail: [log in to unmask] <mailto:[log in to unmask]>
>
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