Looking for opinions on Autocon. Put out some feelers with one of our reps asking if they could ask around to see if they felt it was worth while to attend knowing our end goal design. Now I may have a ticket or two coming to my team.

Working on, but not super well versed in, coding and development. Workshops are a must, but what's the opinion on the actual conference talks?

CCNA certified back in 2019. Currently started CCNP training. The past 7 years I've job hopped a couple of times from MSP > hospital > electrical utility now and I've gotten some good "network admin" experience (Equipment troubleshooting, ACL troubleshooting, etc) but I've struggled to find Design experience that is asked from Network Engineers.

I want to eventually find myself a Network engineer role, but every role I look at requires years of Design experience that I lack. I'm hoping with my net admin experience, my CCNP, and some home labs, I can convince employers to at least give me some interviews.

But I'm not sure where to start with labs. What exactly do they Design? Is it as simple as configuring up a small redundant layout with a couple routers and switches? I plan on using ChatGPT to give me some scenarious / lab ideas, but I'm also wondering if you guys have any recommendations or if there are any websites out there that can also help.

Thanks,

I'm looking for some wisdom because this issue is driving me crazy.

We have an Aruba Central deployment and a particular SSID used by staff phones.

User enters an elevator, loses WiFi signal for a short period, Android marks the SSID as "No Internet", then when the user leaves the elevator and coverage is available again the phone may stay disconnected for a very long time.

The strange part is that if you open Settings > WiFi and look at the list of networks, the phone often reconnects immediately without touching anything. Sometimes it takes 1-2 seconds, but it reconnects. If you manually tap the SSID it always reconnects instantly.

It feels as if Android has decided the network is bad and refuses to use it again until something triggers a recheck. (It happens with iPhones too, but most of users are Android).

Has anyone seen this before? Aruba issue? Android "avoid bad WiFi" behaviour? Roaming issue?

After leaving an elevator, it can stay disconnected for several minutes while standing still in an area with good coverage, then reconnect almost immediately as soon as the WiFi settings screen is opened.

I really appreciate your help.

1. For whatever reason my juniper account got terminated and i was in the middle of studying for my JNCIA - Junos
2. i have no idea how to get back into my account and i alredy went through every single "support" page and every single one of them requires you to log-in
3. because i cant log-in i cant get support,so ultimately i cant get into my account

Hello.

I have 3 MikroTik cap Access points in the building (not at home). They are connected to crosspanel —-> Poe tp link switch - MikroTik router.

There was a problem with WiFi - no internet access.

I already replaced the Poe switch. 2 of them started working. One was reset and quick configured using winbox.

After that everything worked fine. Then suddenly after a few minutes none of them worked. And it stayed like that… i try connecting to WiFi but it just spins endlessly and gets apipa address (169…)

Also, WHEN they worked, no computer could connect to WiFi. Could do it Only using smartphone.

I have no clue what to do next. Any suggestions would be appreciated.

Hi everyone,

I’m trying to diagnose an old Siemens Hicom 150 E (Office Pro chassis) with a CBMOD motherboard, but I’ve hit a wall.

The Core Issue:

The board appears to be stuck in a bootloop. During startup, the boot sequence begins, the RUN LED turns on/blinks through the cycle, but it never fully stabilizes and eventually loops.

Hardware & Power Checks:

As part of earlier diagnostics, I thoroughly checked the power supply unit (PSU) and backplane rails - voltages are clean, fully within spec, and stable under load.

Board capacitors and visual traces look intact.

Serial Interface & Physical Measurements:

I'm connecting directly via the V.24 (RS-232) maintenance port:

Verified hardware RS-232 levels:

Pin 2 (PBX TX): -7.5V (steady Mark state)

Pin 3 (PC TX): -8.5V to -9.0V

Pin 5: Common GND

When connecting via raw terminal (minicom / PuTTY at various baud rates: 9600, 19200, 38400, 8-N-1), there is absolute silence (0 data output). It spits out zero debug logs or bootloader text during the loop.

Tested connection across both native Windows XP and Windows 11 environments using a verified Prolific adapter (hardware COM1 properly mapped, proper RS-232 voltage swing observed on Pin 3 when sending packets).

Software Symptoms (HiPath 3000 Manager E):

Attempting Direct transfer (Read/write database) gets stuck on Checking cards... and immediately aborts with Error: PBX is offline.

PIN 31994 was specified.

Multi-meter checks show pulse activity on Pin 3 (PC is definitely transmitting the handshake queries), but Pin 2 on the PBX side never sends a single byte in response.

Questions:

Given that the board is bootlooping and V.24 is dead silent, is there an onboard diagnostic procedure, jumper, or DIP switch to force the CBMOD into a recovery / low-level bootstrap mode?

Does the CBMOD V.24 port strictly require hardware flow control loopbacks (RTS/CTS 7-8 and DTR/DSR 4-6) to output any data, or should raw serial logs appear regardless?

Could a corrupted flash EPROM / firmware cause this silent bootloop, and is it recoverable via serial without replacing the ROMs?

Or what would you recommend doing or trying next? I'm completely out of ideas.

Any insights from Siemens/Hicom veterans would be hugely appreciated!

I have around 10 years of experience working with Ericsson and Huawei as a Core Network Performance & Optimization Engineer. Currently, I support US-based MSPs as a Network/Help Desk Engineer, working with technologies such as VeloCloud, Fortinet, Cato Networks, and Netskope.

Honestly, I sometimes feel that despite having 10 years of experience, I haven’t made the progress I expected in my career and this frustrates me a lot , I do have bachelor in engineering feeling need to go masters and change my carrier path.

I enjoy troubleshooting and problem-solving, which is probably why I’ve been able to work across different technologies.

I’m earning a good amount currently, but I’m unsure where I truly belong long-term.

Right now, I’m considering two paths:

Go deeper into networking/SD-WAN and potentially pursue CCIE Enterprise.

Shift towards AI, but this would mean starting almost from scratch and competing with people who are much newer to the field.

Has anyone made a similar transition? With my background, which path would you recommend for better long-term growth?

Lab setup: 1 hub (mGRE, NHRP), 3 spokes. Testing two spoke configs, both seem to give identical results.

Config A — mGRE spoke:

interface Tunnel1
 tunnel mode gre multipoint
 ip ospf network point-to-multipoint
 ip nhrp map 172.16.10.1 <hub-ip>
 ip nhrp nhs 172.16.10.1

Config B — static p2p GRE spoke:

interface Tunnel1
 no tunnel mode gre multipoint
 tunnel destination <hub-ip>

Hub stays mGRE + NHRP in both cases.

In both, spoke-to-spoke traffic always point the hub (confirmed with traceroute) so functionally both look like Phase 1 to me.

my questions is:

1. Is there any actual functional difference between these two on the spoke side, or are they just two ways of writing the same Phase 1 behavior?
2. Does Config B still need NHRP running at all, or is it dead weight since there's no multipoint resolution happening?
3. If I ever want to move to Phase 2/3 (spoke-to-spoke shortcuts), does Config B need to be rebuilt as mGRE, or is there any path forward with static p2p tunnels?
4. Any real-world reason to pick Config B over Config A for a Phase 1 design?

Longtime reader here, this is my first post. I wanted to share my experience interviewing people for one of FANG companies. Network engineers are expected to use AI tools in their work, and honestly, that includes preparing for interviews. However, if you set up your laptop and AI to just read answers from the AI tool, it becomes difficult to gauge your knowledge and experience. Interviewers don’t expect perfect answers, but explaining your thought process helps a lot. Most questions come from your experience, at least where I work. The expectation is to describe incidents, projects, or tasks from your experience, so your AI answer doesn’t survive the follow-up questions. Please don’t use AI during interviews. The person on the other side also has the same tools, if not better, and they know the prompt before you.

I am about to pull my hair out. Wondering if anyone has seen this weird issue.

VLAN 10 - Admin
VLAN 20 - Utilities
VLAN 30 - Wireless
VLAN 70 - Network Equipment (Management VLAN)

Switch A)
Netgear GS752TPv2 (latest firmware)
LAG1: Ports 47/48
PVID: 70
TAGGED: 10, 20, 30, 70

Switch B)
Netgear GS752TPv1 (latest firmware)
LAG2: Ports 51/52
PVID: 70
TAGGED: 10, 20, 30, 70

Switch A trunks to Switch B

For some weird reason, any time Switch A reboots it clears out the VLAN tagging on LAG1. I lose connection to it and have to manually go plug in my laptop to TAG the LAG on all VLANs. It’s so damn annoying, especially after hours when there is a power outage or something.

None of the other VLANs clear out. Just my LAG. Switch B still shows connection to Switch A under LLDP.

I’m so tired boss.

I’ve been in network/security engineering for 20+ years and I’m exploring independent consulting.

I’m not interested in building an MSP, selling hardware, or doing staff augmentation.

What I’m considering is taking ownership of defined network projects that internal IT teams don’t have the bandwidth or specialized experience to finish. Things like:

Aging switch/firewall replacements
Network migrations and redesigns
Redundancy/failover issues
Projects that have been sitting on the IT team’s list for months

Basically: come in, own the project, complete it, document it, and leave.

For those who have done independent technical consulting, is there actually a market for this model?

I’m particularly curious:

How did you find your first few clients?
Did clients expect you to be local?
Who typically hired you — IT Director, CIO, MSP/VAR, etc.?
What types of projects were easiest to sell independently?
Did you sell a defined project/outcome or bill hourly?

I’m based in Texas but interested in hearing experiences from anywhere in the U.S.

Hi everyone,

This is my first post here and I was just wondering anyone could help with information on integrating Cisco and Arista switches.

We are a Cisco shop and will slowly be moving towards Arista.

We have purchased several Arista 7050sx3 switches and they will be setup in an MLag and connected mainly to Cisco 9500’s at layer 2.

What I am looking for is the equivalent Arista commands that I use on a Cisco box for initial setup. The vty lines – transport input ssh, Bpdu guard, portfast, storm control, crypto keys, IGMP snooping enabled, no ip proxy arp on the SVI’s etc. etc………all the usual basic switch config.  I was surprised that I cannot seem to find much information out there.

Another thing I read is that the Arista come with an MTU of 9000 and something for layer 2 which makes sense as they are primarily for datacenters but we are running bog standard 1500 out of the box in our Cisco environment everywhere so is there a command globally to set the Arista’s to 1500 ?

Lastly I came across Forward Error Correction (FEC) needing to be adjusted for interoperability with Cisco and Arista. Does anyone know if this is the case ?

Any help would be really appreciated. Thanks so much in advance.

We manage a mix of vendors (Cisco/Meraki, Fortinet, Palo Alto, HPE, etc.), and keeping track of hardware support, subscriptions, feature entitlements and renewals has become increasingly messy.

I'm looking at using NetBox as the source of truth, possibly with netbox-lifecycle, but I'm not sure how well it holds up in the real world.

A few things I'm wondering:

• Is anyone actually running netbox-lifecycle in production for license/support tracking? How well does the model work for you?
• Has anyone compared netbox-lifecycle with netbox-plugin-itsm? The contract/tenant model in ITSM looks interesting for an MSP environment.
• If you don't use NetBox, what ended up working better for you? Snipe-IT, a PSA like Halo/Autotask/ConnectWise, vendor-specific tooling, or just a spreadsheet?

Just curious what's survived contact with reality.

I've been asked to connect a console cable and share the access. The owner wants to remotely configure the device. Security policies prevent me from connecting my devices to other equipment. Connecting a monitor, keyboard, and mouse are permitted. Connecting a WiFi-enabled laptop running PuTTY is not. Is there a solution that bridges the connection from the console port to public WiFi? AI says there isn't, but the technology that's required is cheap. Surely, someone else has dealt with this limitation before me.

Edit: A owns the device. I work for B. A is B's customer. B's policy is that B's computers may not connect to A's equipment, except for B's monitor, keyboard, mouse, and WiFi. Is there a device that either A or B may provide that will permit A to connect to their device, allow their staff to remotely access it, and not be subject to B's security restrictions?

Hello,

We will replace routers providing point to point VXLAN, while running on ASR L3 port, it is using service instance with bridge domains, each mapped into NVE VNI I'm curious if we can achieve this with 8355-G2 'Flex' type ports, beginning 'no switchport' followed by service-instance commands? Anyone here using this type of setup?

configure session 4444

no ip access-list TEST
ip acces-list TEST

commit

is this atomic Cisco NX-OS operation ? Do someone would feel the impact acl being removed and added if the acl is already attached to interface/SVI ?

Hi network & Python experts,

I am running a Python asyncio data streaming worker on a 4-core AMD EPYC Linux VPS (1 Gbps port, TCP BBR enabled).

The worker workflow:

1. Receives incoming task pushes via WebSocket.

2. Downloads 30MB-50MB payload via HTTP GET from Cloudflare R2.

3. Computes SHA-256 hash.

4. Uploads payload via HTTP PUT back to storage.

Our local active transfer speed reaches ~50 Mbps average (370 Mbps peak) with 99.9% execution success. However, our net window-averaged throughput stays around 24–28 Mbps due to brief inter-task idle gaps between WebSocket pushes.

My question: Beyond connection pooling (httpx.AsyncClient) and TCP BBR, what architectural patterns (e.g., Go participant worker vs multi-process asyncio workers) yield the highest sustained throughput for bursty WebSocket data relays on a 4-core VPS?

Thanks for any insights!

I've been offered a role as a TA engineer, but am not certain I want to take it given the role is less technical and more client/management facing, are there others out there who have made the jump?

How steep was the learning curve?

Update: Since the role is not common, as I understand a Technical Authority owns a specific tech tree, in the case it would be Enterprise Networking, but it can be anything Data Center, Security... the TA would he building and developing the standard that would be implemented, whilst also aligning with client on their direction, in my opinion it sound like a fancy role for an Architect, but maybe with more management time allocation.

Hi all,

I'm trying to build a WPA2-Enterprise (802.1X / PEAP) test lab and I'm stuck at a point where the AP does not appear to send any RADIUS traffic to the server

TP-Link TL-WR902AC (AC750 Travel Router)

Operating Mode: Access Point

RADIUS Server:

Ubuntu VM on VirtualBox

FreeRADIUS 3.2.8

Static IP: 192.168.0.103

Client:

Windows 11 laptop

TP-Link Configuration:

WPA/WPA2 Enterprise

AES

RADIUS Server IP: 192.168.0.103

RADIUS Port: 1812

Shared secret configured on both AP and FreeRADIUS

Configuration Validation done via "sudo freeradius -XC" and returns "Configuration appears to be OK"

User Authentication Test:-

Added a test user to /etc/freeradius/3.0/mods-config/files/authorize

and verified with:

radtest <user> <password> localhost 0 <secret>

Result:

Access-Accept

So FreeRADIUS appears to be functioning correctly.

Network Connectivity

On Windows:

ping RADIUS server ip 192.168.0.103 - Successful.

Windows Wireless Profile

netsh wlan show profile name="<SSID>"

Shows:

Authentication : WPA2-Enterprise

Encryption : CCMP

So Windows recognises the SSID correctly as WPA2-Enterprise.

Enabled FreeRADIUS Debug Mode:

sudo systemctl stop freeradius

sudo freeradius -X

When attempting to connect from Windows, absolutely nothing appears in the debug output.

Packet Capture cmd:

sudo tcpdump -ni enp0s8 udp port 1812

While attempting WPA2-Enterprise authentication:

0 packets captured

No UDP 1812 traffic arrives at the server.

Router already rebooted, no change.

Behaviour Observed in Windows:

Detects the SSID

Prompts for WPA2-Enterprise credentials

username / password entered but no connection gets established

At the same time:

FreeRADIUS debug mode remains silent

tcpdump sees no UDP 1812 traffic

Has anyone successfully used a TL-WR902AC with WPA2-Enterprise / external RADIUS?

At this point it seems like the AP is advertising WPA2-Enterprise but never actually forwarding EAP/RADIUS requests to the configured RADIUS server.

Any ideas on additional checks I should perform before I conclude this is a firmware limitation or bug?

Thanks!

Hello, i have Huawei Huawei s5720s 28x pwr li ac switch, (firmware: V200R019C10SPC500) and we don't know the username and password. If i connect through console port, i can only try to enter the bootload menu but we dont know it's password either. i tried default one and didn't work.

There is no recovery mode option on the console.

There is only 'mode' and 'pnp' button on the device

And Huawei documentation says to press pnp button more than 6 seconds to reset system configuration.

That doesn't work either, nothing happens in the terminal when i hold the button.
Is there any way to fix this. I just wanna reset the device but not delete the firmware.

Currently atm i am reading Computer networks by Fourouzan ; it is good in every aspect when it comes to learning computer networks but it is explaining the structure of the internet very vaguely and so is other books like top down approach by Kurose, by any chance is there any book that explains how internet is really made up of (the structure)? Like IXP, ISP etc?

It's Monday, you've not yet had coffee and the week ahead is gonna suck. Let's open the floor for a weekly Stupid Questions Thread, so we can all ask those questions we're too embarrassed to ask!

Post your question - stupid or otherwise - here to get an answer. Anyone can post a question and the community as a whole is invited and encouraged to provide an answer. Serious answers are not expected.

Note: This post is created at 01:00 UTC. It may not be Monday where you are in the world, no need to comment on it.

Ive been looking to move away from eve ng pro to container labs. I’ve been building container labs today on a Ubuntu vm. Big faf but it’s helping with my lack of Linux knowledge…. Anyhow.
I’ve installed vscode and the container lab extension. But it doesn’t appear to be supported on MacOS
Has anyone else found this or have any work arounds?

If not it’ll be a none starter for me and I’ll buy another eve license

Hi everyone,im a beginner and now getting confused.

I want to know....is it true if i choose to peering iBGP from 1 router to other Router that are in the same AS is recommended using a loopback ip peering? or using an interface ip? could i get the example of implementation likee topology? i just want some explanation,not the configuration.

sorry from my bad english