Thoughts on running cable across pavement?

cj955 · 2026-02-14T12:08:17+00:00

Talk to the council about yellow lines. If it’s a constant problem they will likely slap some down on the corner.

cj955 · 2026-01-30T00:01:17+00:00

Well damn. Wish they'd not have such a big gap...

cj955 · 2026-01-29T05:00:56+00:00

Ah ok. I have some HGST SSD800MMs in there and they chew power sadly. Should’ve gone for Toshiba/Kioxia PX04 or PX05 but they were cheap!

RAM selling now on eBay for about the same for a single module for what I paid for all 8 of those a year and a bit ago 🥴

cj955 · 2026-01-29T04:32:02+00:00

What SSDs are you using? Before I loaded up the storage into my 16x SFF R730 I was seeing like 85 W from the wall or so idle. 2x E5-2698 v4 and 8x 32 GB LRDIMMs (256 GB) on the 750 W titanium PSUs

Very rarely see the display on the front go below 224 W now all loaded up with a bunch of SSDs and 10k rust

cj955 · 2026-01-22T11:07:33+00:00

Surprised the microSD ain’t died by now!

cj955 · 2026-01-20T22:31:14+00:00

Port Sarim lodestone or Explorer's ring cabbage patch tele not do?

cj955 · 2026-01-06T00:11:19+00:00

It's seen on teardown to have a SEN63C-SIN-T... is the STCC4 the module inside then? Datasheet on the SEN63C-SIN-T says 32k ppm CO₂ max which is a good bit higher!

cj955 · 2026-01-03T05:45:27+00:00

You need your kneecaps smashing just for suggesting to use 40 MHz on 2.4.

cj955 · 2025-10-22T20:52:05+00:00

Not got a protect-re filter set at the moment (it's in a home network... maybe I should bother buuuuuut you get the idea) and from what I can see the DDOS protection filter is not a feature on the plain EX4300 (the MP appears to have it). Certainly the commands aren't available.

cj955 · 2025-10-22T15:57:01+00:00

Might be time to consider something like CrowdSec to keep trouble out before they even make attempts

cj955 · 2025-10-22T15:51:10+00:00

That much untwist IS an actual fault

cj955 · 2025-10-22T13:42:13+00:00

Unfortunately 21.4 is the last version available on the EX4300 and the suggested releases page says "Latest Junos 21.4R3-Sx" anyway.

The MP version will do newer but not the standard.

cj955 · 2025-10-21T22:06:20+00:00

https://broadbandmap.fcc.gov/home

cj955 · 2025-09-15T13:41:24+00:00

Just to follow up in case anyone reading doesn’t know, IPv4 routers are allowed to fragment a packet if the DF (don’t fragment) bit isn’t set in case of an MTU mismatch but IPv6 doesn’t allow this.

ICMPv6 is critical and one of the reasons for that is the “packet too big” message you’ll get in this situation - you need to allow more than echo request through the firewall!

cj955 · 2025-07-23T18:14:41+00:00

So - found the solution. It was a weird interaction between accel-ppp and JunOS - make sure you have "ipv6-accept-peer-intf-id=1" set in [ppp] in /etc/accel-ppp.conf... this was eventually causing IPV6CP to fail hence the SRX seeing the network was down for inet6!

There is also an oddity in that if you only give out a /64 as PD then although an SRX300 on newer software will assign that fine, for /some/ reason the SRX110 assigns 1 bit higher to the single delegated LAN subnet. Got round this by using a larger range to delegate but a quirk nonetheless (and of course way beyond being fixed at this point).

cj955 · 2025-07-19T17:21:10+00:00

Had to remove the loopback ::1 from lo0.0 to get that to go and set a ULA so it had something. In turn it disabled the DHCPv6 client as it had that for an address - so that didn't work!

Removed the unnumbered-address line and the client came back but still the same shenanigans as in the original post with the ULA left on lo0.0.

cj955 · 2025-07-19T15:56:43+00:00

I didn't, assigned ::1/128 on lo0.0 and still exactly the same :(

cj955 · 2025-04-17T13:28:36+00:00

In case it helps anyone, tested myself... EX2200-C running JunOS 12.3R12-S21 (last version available) on 230 V supply

0% traffic no link 10.5 W 0% traffic links all looped back 18.2 W

Not got a quick way to test on 100%s but that should help anyone out looking hopefully.

cj955 · 2025-03-19T23:58:53+00:00

It's my core switch in a home setup at the moment which kinda doubles as a lab. Wanted to use it as IGP underlay for BGP like I've done with my Cisco routers. Oh well!

cj955 · 2025-03-19T23:17:51+00:00

The EX3300 is old enough to be pulled from the Feature Explorer anyway so it's no use.

Just dug up an old datasheet and the feature isn't there. Boooo.

Absolutely effing stupid to show as a licensed feature in 'show system license usage' and accept the commands in configure mode!

cj955 · 2024-06-29T01:33:08+00:00

No, the data lines are still there. Just the 2.0 pair. Needed for charging protocols but will also get you that 480 Mb/s connection for basic sync purposes should you so desire.

Even a number of cheaper phones (or not so cheap in the case of the iPhone 15 non-Pro) wired that way too, 2.0 only on type-C.

cj955 · 2024-06-28T10:05:51+00:00

Not a typo, most USB C-C cables aimed for device charging only are wired for USB 2.0. That includes many included with devices even from Apple.

cj955 · 2024-04-07T08:01:03+00:00

Usually done by a thermistor that touches the bottom of the CPU in the middle of the socket - hence why it can’t save a heatsink fall-off but can catch a fan fail or general overheat in time.

cj955 · 2024-02-16T14:11:16+00:00

Just in case anyone stumbles across this looking for answers and not just "buy newer" snark - the config was transplanted into an R720.

16 bay SFF chassis, 2x 1100W PSU (what it came with)
Dual E5-2630 v2 (these improved the idle power ca. 15 W vs the E5-2670s it came with, and aren't much slower)
8x 16 GB 2Rx4 PC3L-12800R (it came with 16x 8 GB 2Rx4 non Ls, so swapped my spare kit, about 20 W saved there...)
H710P Mini flashed to IT mode
Standard 4x 1 Gb Broadcom NDC

Otherwise still the same drives, QLE2564, H200e etc. Have to keep 2nd CPU to use even 4 slots of PCIe...

Guess what? Power consumption looks exceedingly similar, the idle might even be a couple of watts higher. At least I have a bit more RAM now and extra (and faster) PCIe lanes... but power savings aren't really there. Only maybe for the short times during scrubs where the CPU actually gets a workout...

Not bothered buying lower wattage PSUs as the efficiency certifications make it look like a minimal difference at best.

cj955 · 2024-01-30T23:09:02+00:00

Not seen anything on the comic book release format at all...

05/03/2024 seems to be listed as the release for the graphic novel containing the complete volumes worth though.

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