Questions tagged [certification]
For questions involving certification of network hardware, software, cabling, etc. for use. This tag is not meant for educational certifications, e.g. CCNA.
0
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1answer
32 views
Radius and certificates
I'm trying to understand something. When a client and the radius server start the connection how does things work? Is it always a tls connection and does it use the symmetric encryption after ...
2
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2answers
120 views
What can I infer about a network connection using a cable tester (if anything)
I have a NS-468 cable tester for testing cables. This works fine but if I connect just one end of a RJ45 cable to a network, I only get 4 lights. This seems reasonable as I suppose 4 pins are for ...
1
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1answer
63 views
Can bad cabling affect the overall network?
TLDR: Can a handful of problematic lines negatively impact the performance of the network as a whole? ... or would any problems stop once it reaches the switch?
Longer Version (background):
A ...
0
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1answer
304 views
IPSEC VPN - Failed identity certification renewal
I've site-to-site VPN connection between an ASA and multiple Cisco routers.
The identity certificates need to be renewed from time to time at the CA site and I didn't have problem until now.
I'm ...
1
vote
1answer
403 views
What typically causes delay skew?
What causes delay skew in a typical copper network?
From Wikipedia: "The Delay Skew test tests for the difference in propagation delay between the fastest and slowest set of wire pairs. An ideal skew ...
4
votes
3answers
765 views
An easy yet effective way to test if existing network cabling will be ok for GbE?
OK, so the story is this: I'm a school governor for my daughter's primary school here in the UK (roughly equivalent to being 'on the school board' in the USA, I think).
I'm the IT governor (pretty ...
