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Richard Letts

Director, Networking and Telecommunications,
Purdue University

Purdue University
West Lafayette, IN
United States

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1 to 12 of 12 total
Posted By Richard Letts 06-08-2022 11:50:09 AM
Found In Egroup: Network Management
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a) Spreadsheets -- flexible and good reporting, if a pain to manage. b) Custom written application -- only good if your organization has a development team willing to own this c) Commercial software Inventory management module in ITSM tool -- ServiceNow has a fairly decent inventory management module, ...
Posted By Richard Letts 05-23-2022 04:18:05 PM
Found In Egroup: Network Management
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My 2 cents -- make the hosts inside the data center on RFC1918/private IPv6 addresses and if they need to be publically reachable then front-end them with a load balancer like an F5/Nginx/etc. (pick your load balancer). That reduces your attack surface. Also, all of your certificates are now on the F5, ...
Posted By Richard Letts 05-04-2022 04:05:57 PM
Found In Egroup: Network Management
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For life-safety (blue light, alarm, elevator) we have a minimum of 8 hours (through a DC plant). That is backed up with a generator and feeds from our auxiliary generation facility (wade) and Duke Energy. For Fire alarms NFPA72 requires a minimum of 8 hours for MFVN providers – contact your fire chief ...
Posted By Richard Letts 03-14-2022 11:35:41 AM
Found In Egroup: Communications Infrastructure and Applications
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This is a social issue rather than a technical one, or rather I feel the lack of support for IoT devices, and a perception that wifi performance is poor that drives students to install IoT devices in their 'home' We have struggled with this, and have a RFP out to take our residence WifI from 802.11n ...
Posted By Richard Letts 03-01-2022 12:44:53 PM
Found In Egroup: Communications Infrastructure and Applications
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PRI are mostly going away, SIP trunks are a lot less expensive to maintain. We're working on going from well over twenty down to a pair of SIP trunks (We're looking at keeping one for a while for troubleshooting issues that might otherwise be blamed on the network) What does not look to be going ...
Posted By Richard Letts 02-04-2022 11:37:38 AM
Found In Egroup: Communications Infrastructure and Applications
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Questions about what Verizon are going to do in an area should really go to them, but it would not surprise me. I'm in the final stages of a RFP for larger analog gateways to support life-safety services on campus, that we currently supply off our CS2100. We're going to continue to provide those services ...
Posted By Richard Letts 01-31-2022 07:49:58 AM
Found In Egroup: Communications Infrastructure and Applications
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We're evaluating cloud solutions from our current vendor A couple of years ago PCI compliance changed guidance for SIP/VOIP systems bringing them into scope. If you have a group (e.g. athletics) that takes credit cards then asking if they have a SAQ-D (service provider) that gets blessed by your PCI ...
Posted By Richard Letts 11-05-2021 01:08:04 PM
Found In Egroup: Network Management
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We have two power supplies in each switch – one should be on a UPS and the other on utility power. Richard Letts Director, Networking and Telecommunications, Purdue University
Posted By Richard Letts 11-03-2021 04:15:10 PM
Found In Egroup: Network Management
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We've been doing an extensive survey of this as we try to establish a capital investment into our residence networking – thank you to all of the directors who have replied to the business analysts working on that with our housing services folks. Today University Residences require provide one pic ...
Posted By Richard Letts 10-14-2021 04:13:46 PM
Found In Egroup: Wireless Local Area Networking
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We have a LOT of SSID at Purdue (see below); we are looking at moving to Eduroam. Because our residences are 90% 802.11n students try a lot of the different SSID to see if they get better performance. Quite often students report 'improved performance' by switching to our guest SSID (which comes off ...
Posted By Richard Letts 10-06-2021 08:29:58 AM
Found In Egroup: Network Management
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This is one of the items on our risk registry. Most of the fiber on campus runs in the utility tunnels that provide chilled water, steam, power, etc. If we had a separate physical path into the building then it is highly likely that it is going to terminate in the same Building Distribution Frame ...
Posted By Richard Letts 09-29-2021 11:55:00 AM
Found In Egroup: Wireless Local Area Networking
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aside: it looks as if Educause Connect has killed this discussion list in some way. my reply to the Listserv got rejected. We've been struggling with wireless service levels on a number of fronts as we're now a few hundred students short of 50,000 on campus. (up from ~42K three years ago) a) We have ...