New Undersea Cable – Grace Hopper

https://cloud.google.com/blog/products/infrastructure/announcing-googles-grace-hopper-subsea-cable-system

…We’re excited to announce a new subsea cable—Grace Hopper—which will run between the United States, the United Kingdom and Spain, providing better resilience for the network that underpins Google’s consumer and enterprise products.

grace hopper.jpg

Preseem and Switches in switch centric design

Anyone who follows me knows I am a big fan of switch centric designs. This usually involves a router on a stick paired with a high port count switch. Recently I had a client that installed a Preseem appliance in their network.

Equipment used in this setup
-Dell R710 with a 4 Port SFP+ card running Preseem
-Cisco 3064-X 48 Port switch
-Maxxwave Vengeance router with dual QSF+ card and 4 Port SFP+ card

A visio diagram of how this looks

We have two transport links coming into the switch on the left. These are dumped into VLANs 506 and 507. We then come out of the switch into the Preseem box via 2 SFP+ ports, one for each VLAN. In this case, we just used DAC cables In the future, we can turn these into trunk ports to pass more VLANS through.

The data then leaves the Preseem box over dual SFP fibers directly into the router’s SFP+ ports. If the Preseem appliance fails we have a secondary OSPF/IBGP path from the router’s 40 GIG QSFP down to the switch. This is a bypass in case the Preseem appliance hardware fails.

If you start flowing more than 10 Gigs through a single link you can upgrade to more SFP+ ports into your appliance and a 40 Gig QSFP+ card. You then link the appliance to the spare QSFP port on your router.

Siklu Case study 80 GHZ Indianapolis Indiana

Some photos from a Siklu 80GHZ deployment in Downtown Indianapolis, Indiana. This was deployed by On-Ramp Indiana (https://www.ori.net). The problem being solved is moving video files around a network in order to get it to smart screens and projectors. This is a very urban area and wireless was pretty much the only option to get from building to building.

Siklu 80GHZ was on the shortlist due to the distances involved. Another consideration was the footprint of the equipment. The equipment had to be as low profile as possible.

Another needed aspect of this network was the ability to move traffic around at layer 2. Not all traffic is IP based in this type of network.

Equipment used
Ether Haul 1200FX
https://www.siklu.com/product/etherhaul-kilo-series/

Right above the observation windows, you can see the Siklu just to the right of the center corner

Some technical Details

Average traffic over the past 2 months

As you can see traffic is reasonably consistent in the 80-100 meg range. We needed a solution that did not slow down due to interference. A possible 10’s of thousands of visitors to this attraction in a weekend, reliability and performance were critical. When this was installed we did not know about COVID, but this is an attraction people can enjoy from their cars and social distancing. This use added to the visibility of this attraction, thus making the reliability even more crucial.

Articles about the finished product
https://www.wthr.com/article/news/local/monument-circle-get-new-light-show-time-holidays/531-ef1819ca-5f27-4886-9283-17e481c33f39

https://www.wthr.com/article/news/local/new-light-show-sound-system-entertain-monument-circle-visitors/531-576ce095-501c-41c6-913a-518a0cc05779

On-Ramp Indiana Contacts www.ori.net 317.774.2100