Why the FF:FE in EUI-64? - Network Engineering Stack Exchange
Dec 6, 2016 · EUI-64 IPv6 addresses are generated from MAC addresses by taking the network prefix (64 bits) and appending the first half of the MAC address, then FF:FE, then the second half of the …
How common is fragmentation at tunnel ingress, compared to …
Jan 17, 2026 · As far as I know there are three options to deal with large packets that do not fit an on-path tunnel: let the tunnel ingress fragment the packet, and the tunnel egress reassemble …
Allied Telesis AT-9424T/SP stuck in bootloop
I’m facing a boot loop issue with my Allied Telesis AT-9424T/SP switch. After powering it on, the system initializes and attempts to decompress the application image, but it eventually throws an
Unable to make WiFi connection from router to streaming device
My home internet provider is AT&T Internet Air. I have a new streaming device connected to a TV that will not connect to the router WiFi. I have multiple devices connected at 2.4GHz and multi...
Need Advice - 140m Ethernet Run Between Buildings
Aug 2, 2025 · I'm facing a technical challenge and could really use your expertise. I need to establish a wired network connection between two points 140 meters apart - well beyond the standard 100m …
Why is broadcast used at the DHCPREQUEST step?
Mar 6, 2018 · This is the process of DHCP operation, My question is at the 3rd step why does the Client send a Broadcast and not a Unicast as after the previous two operations the address of the DHCP …
Can't Upload New ASA Image (I/O Error)
Either the CF card is damaged or the filesystem is corrupt. Note, the 5510 has two CF cards; one external, and one internal. The internal one is where the platform license information is stored, so if …
cisco - Fiber dBm transceiver power level at warning - Network ...
Apr 2, 2020 · We have cisco nexus 9000 and one of 40G interface showing port transceiver power level at warning when i check on command line i found following. Question: what is the normal power level …
Newest 't568a' Questions - Network Engineering Stack Exchange
Dec 19, 2018 · Q&A for network engineers For questions about ANSI/TIA-568 type a cabling standard. It is a set of telecommunications standards from the Telecommunications Industry Association (TIA). …
Badges - Network Engineering Stack Exchange
Q&A for network engineers Badges Besides gaining reputation with your questions and answers, you receive badges for being especially helpful. Badges appear on your profile page, flair, and your posts.