nanog mailing list archives

Re: Test Lab Best Practices


From: Tom Beecher <beecher () beecher cc>
Date: Thu, 28 Sep 2023 12:23:04 -0400

Appliance virtualization is perfectly acceptable for a lot of things. But
there are large sets of problems that you will never catch that way.

To the OP :

With respect to 'strategies' :

1. Test something to make sure it works.
2. Then test it to see where and how it breaks.

Lots of people do #1. Not enough do #2. (Looking at you, equipment vendors.
)



On Thu, Sep 28, 2023 at 12:04 PM Nickolas Stevermer via NANOG <
nanog () nanog org> wrote:

If you're able to virtualize some of these appliances, almost any
virtualization platform can be setup to connect nodes together. However I
really enjoy using Eve-ng <https://www.eve-ng.net/>. It's a network
virtualization web app that can be deployed on bare metal or in a VM. It
lets you diagram, connect and configure setups and do testing with
different network nodes. What is pretty nice with this is you can then just
click on any of the connected links and wireshark pops up and you're
viewing packet captures instantly. It kind of reminds me of Cisco's VIRL,
but with maybe less overhead?  It has enabled me to run and connect several
vendor appliances and build up configuration prior to acquiring the
physical hardware for deployment.

- Nick Stevermer


On Thu, Sep 28, 2023 at 10:46 AM Mel Beckman <mel () beckman org> wrote:

In any lab,I find concurrent access to serial ports is still an essential
diagnostic tool. In a pinch you can get a used Cisco 2811 for $100, but
there are multiport devices from lots of vendors. These let you SSH into
the server and then connect to any serial port, giving you separate serial
port windows all on the same screen. I’ve become fond of the WiFi-capable
multiport modules from get-console.com. The ability to record logs from
these serial ports in real-time helps a lot for documenting regression
tests.

 -mel beckman

On Sep 28, 2023, at 7:25 AM, Kenneth Vedder <kvedder () amplex net> wrote:


Hello NANOG,

We have been struggling with firmware bugs from a specific router
vendor. I am looking to set up a test lab of our core network and a few
remote site routers.  Protocols would include SR-MPLS, ISIS, EVPN MPLS and
L3VPN with a little OSPF sprinkled in. I'd be grateful for any tips or
resources anyone has that might cover testing strategies and/or best
practices.

Thanks,
Ken



--
*Nick Stevermer*
Network Engineer
Technology Department
Duluth Public Schools
713 Portia Johnson Dr.
Duluth, MN 55811
Phone: 218-336-8754 ext 1227



Confidentiality Notice: This E-mail message, including any attachments, is
for the sole use of the intended recipient(s) and may contain confidential
and privileged information. Any unauthorized review, use, disclosure or
distribution is prohibited. If you are not the intended recipient, please
contact the sender by reply E-mail and destroy all copies of the original
message.

Current thread: