All
In case you cant find it, the NL is at
https://www.gridpp.ac.uk/179-network-forward-look/
On 26 Jan 2018, at 08:20, John Bland <[log in to unmask]> wrote:
Hi,
We're getting some push back from our central networking team about our WAN connectivity.
Our current connection uses the standard shared campus WAN, passing through the university firewall, then out to JISC through a redundant pair of 10G links.
Although we have our 'grid' IP range set to be not filtered by the firewall all packets still pass through it and still get hit with some filtering (most recent bit of fun was SSL connections with X509 certificates being dropped because they were wrongly marked as 'insecure', essentially killing all Grid traffic).
Our traffic also causes campus-wide issues, mostly due to overloading the firewall rather than the links themselves, so we are throttled to ~5G. While we have IPv6 addresses our traffic is being heavily throttled (~0.3G) by university routers in the path that have very poor IPv6 performance.
The plan was to reuse some university routers to upgrade the physical connection and to provide us a direct 10G link to the JISC WAN, with no University firewall and (supposedly) much better IPv6 throughput.
Despite this initial progress the University is now pushing us (again) to pay for our own direct 10G link to JISC, and pay for and install a hardware firewall on this connection (yeah). Apparently another department has done this (why, or how, we don't know).
What would be interesting to know before loading up my shotgun and replying to them is whether other Grid sites do this, or have been asked to do this. Does any other Grid site pay for a dedicated WAN uplink to JISC just for GridPP or their department? Do you put a hardware firewall on this path as well?
Cheers,
John
--
John Bland [log in to unmask]
Research Fellow office: 220
High Energy Physics Division tel (int): 42911
Oliver Lodge Laboratory tel (ext): +44 (0)151 794 2911
University of Liverpool http://www.liv.ac.uk/physics/hep/
"I canna change the laws of physics, Captain!"
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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