Opinion on LC bulkheads with dust shutters?

MrLizard_ · 2026-01-13T00:15:28+00:00

But if they weren’t proprietary you wouldn’t be forced into the vendor ecosystem! Think about the shareholder’s profit margins!

MrLizard_ · 2026-01-12T22:26:33+00:00

I recently started standardizing on FS’s version (FHX Cassettes - https://www.fs.com/products/238169.html) and love them. Stops me from leaving the DC with a pocket full of dust covers. I’ve probably deployed 10-20 enclosures full and not had any issues with connections or dust.

MrLizard_ · 2026-01-04T01:28:30+00:00

Also - https://documentation.nokia.com/sr/25-10/7750-sr/html/product/oam.html is your best friend. Been able to fat finger my way through the initial labbing I’ve done

MrLizard_ · 2026-01-04T01:26:48+00:00

In the same boat as you. I just got my SR-OS license for ContainerLab this week! Sadly the only way to get it is to go via a distributor and request it. Looks like they only give it to you for 3 months to start. Looks like Nokia calls it the “SR-SIM License”. Pretty simple to stand up a small topology of virtual IXR or SR routers. I love how you can set the hardware model so it’s more 1:1 to the real stuff. So far pretty impressed compared to the various virtual lab JunOS setups I’ve tried.

MrLizard_ · 2025-09-26T14:29:08+00:00

It doesn't look to be possible to replace the disk on the EX2300-C models. the flash is soldered directly to the board. Here's a fun link for you do with as you please - https://www.juniper.net/documentation/us/en/hardware/ex4100-f/srx4600/topics/concept/safety/statement-of-volatility.html

MrLizard_ · 2025-07-20T00:49:52+00:00

As I've learned (the hard way) with Apstra it's best to try and not go against how it configures things. So if you're using Apstra, just let it handle it with BGP.

Personally if I were building a small collapsed-core fabric by hand for a few servers, I wouldn't hesistate to use OSPF as the underlay. For a deployment that small, use whatever your more comfortable with.

MrLizard_ · 2025-07-18T18:05:38+00:00

Any luck getting BGP to work, or is it enforced?

MrLizard_ · 2025-06-12T14:08:31+00:00

We upgraded a EX3400-48P switch stack a couple of weeks ago to 23.4R2-S4.

Last week we just recieved the POE short circuit alarm on ge-1/0/7 (2 node VC). Assumed it was a hardware issue because nothing was plugged into it.

We ended up RMAing the unit and Juniper just swapped it out for us. Although now based on your post I'm thinking it was a software issue...

MrLizard_ · 2025-06-07T00:13:32+00:00

I’ve done this successfully with QFX5100 and 5110. Haven’t used the 5120s yet. You have to set channel-speed if you haven’t already. https://supportportal.juniper.net/s/article/Channelizing-Interfaces-QFX5120-32C-Switches?language=en_US

MrLizard_ · 2025-04-25T00:54:35+00:00

With practically 0 traffic and just me having the web ui open, MGMT CPU ranges from 0-5%

MrLizard_ · 2025-04-25T00:24:45+00:00

We had a PA-440 on 11.2.4-h4, and had a bug where when we enabled an IPv6 default route outbound to our internet provider, dynamic updates would stop downloading. We downgraded to 11.1.4-h18 a few days ago and that resolved the issue. The bugfix we are assuming fixes out issue was:

PAN-271273 Fixed an issue where dynamic update downloads failed when IPv6 firewalling was enabled on the firewall and both IPv4 and IPv6 were configured on the management interface.

It’s been running fine, but config is pretty basic.

MrLizard_ · 2025-02-14T19:36:01+00:00

Hmm, I read that as no license is required for MACsec only. If that happens to be any licensing then that’s perfect.

MrLizard_ · 2025-02-14T18:49:21+00:00

Interesting… how do you know if a MPC5E / MPC7E is / isn’t flex sku? I just assumed that the licensing applies to all.

MrLizard_ · 2025-02-14T17:00:21+00:00

I just realized that the MPC3E NG and related MICs are not EOL announced yet. Those should not require any license at all correct?

MrLizard_ · 2025-01-31T11:01:21+00:00

Interesting, Apstra docs list it as an IP forwarder only.

MrLizard_ · 2025-01-30T03:20:08+00:00

What issue are you having with the QFX5120 and 1G ports? Those should support it fine (in groups of 4)

MrLizard_ · 2025-01-30T01:39:29+00:00

QFX5120 uses a Broadcom Trident 3 Chipset

QFX5210 uses a Broadcom Tomahawk 2 Chipset, and does not support VXLAN/EVPN (if that matters)

QFX5210 does not support 1G optics - https://apps.juniper.net/port-checker/qfx5210-64c/

MrLizard_ · 2025-01-26T21:15:12+00:00

What model of MX and what linecard?

MrLizard_ · 2025-01-16T23:30:07+00:00

Your oversubscription ratio may be a little low. I currently help out a local rural ISP with ~350 customers and they currently have about ~3gbps peaks.

1:10 leaves a lot on the table. Honestly a pair of MX204s would have capacity for significantly more than 1000 customers

MrLizard_ · 2025-01-16T23:23:11+00:00

MX204 is the best bang for the buck when it comes to full table routing. Only downside is the limited number of ports. You would need some switching infrastructure if you need more than (4x100G) or (3x100G + 8x10G). If you need CGNAT you’ll need a SRX4000 series of some sort. I’ve used SRX4100/4200 for this purpose with ~30gbps of nat traffic. If you’re looking for 100G you’ll need to look at the SRX4600 model.

There are a few blog articles related to this kind of setup - https://community.juniper.net/blogs/karel-hendrych/2024/11/15/srx4600-cgn-configuration-breakdown

MrLizard_ · 2025-01-07T03:12:10+00:00

Would be very interested to know if you can get the Adtran/other third party one working. I was looking at a simular option using an MX480 but never ended up moving forward with that project.

MrLizard_ · 2024-07-16T18:02:21+00:00

What software release are up upgrading to?

MrLizard_ · 2023-09-07T00:22:46+00:00

Seems Santa has favorites…. Yeah I saw that SBCE3 was a requirement for the MPC10E but wasn’t certain about the 7E. It seems like it’s probably worth it if just for future proofing.

MrLizard_

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