u/Qvosniak

Hey everyone,

I’m currently setting up a Cisco XRv 9000 image inside GNS3, but I've run into an annoying roadblock. Right now, I can only get the IOS CLI to load if the node's console type is set to VNC (Which is the normal behavior as far as I know).

I want to switch the console type over to Telnet so I can just use my normal terminal via PuTTy but whenever I blindly change the GNS3 node settings to Telnet, the XRv boots up into the kernel mode not the ios CLI, and can''t seem to overwrite this.

I've tried many Additional Settings within the QEMU Additional Options like -vga std.. but nothing..

I stumbled across this GNS3 guide for ASAv devices which handles a similar issue:https://www.gns3.com/how-to-configure-any-asav-qcow2-

However, the steps and QEMU settings there are specific to the ASA platform and don't seem to translate directly to the XRv9k architecture.

Does anyone know the proper workflow or specific QEMU/advanced settings needed to successfully force the XRv 9000 to pipe the cisco ios via Telnet instead of VNC?

Appreciate any help or pointers you can give!

Hey guys,

Left my old company 1 month ago, really nice place tbh, just decided to keep progressing in my career.

Yesterday former colleague of mine, really nice dude, has reached out to me initially asking about how I was doing.. personal stuff, and then he dropped the bombshell asking me about where to find specific information for work, it was a quick back and forth sms, I provided the answer and stoops replying.

However he kept sending me screenshots after screenshots about the same issue and I simply ignored them. Today he reached out again asking if we can have a quick call to discuss some networking stuff I left behind.

Now, I am more than happy to provide a quick consult but I'd be charging for that. The thing is is my colleague who's reaching out, not my former employer.

If that's the case, how should I handle this? How should I reply back?

I like the company, they are nice dudes, and I don't wanna burn any bridges, but I also want to put a foot down and demand for time/money for my consults

Mind you I don't have a 'company' under my name :(

Hey guys,

I know some people may ask why I am running GNS3 on Proxmox.. I've gone through this and I decided to do it this way.

Anyway..

I've seen few tutorials on YT, I followed this one: https://www.youtube.com/watch?v=UfqjqigS-OM

and so far I managed to boot it up, and even ping the GNS3VM on Port 80

I am using Windows 11 GNS3 Client on the same network and the VM gets recognized, however it remains stuck in 'Discovering or connecting to Main Server'.

I have allocated 96Gb ram to the VM
48 vCPUS

But I cannot get passed this point.

I've seen people having issues however they are running the VM on VMware Workstation instead of Proxmox.

I am hoping someone could guide be through how to fix this up.

https://preview.redd.it/os5nqxcc9p0h1.png?width=744&format=png&auto=webp&s=507e5b0cca5e433160c5ca9b1a4a99f27d967893

I've checked the NIC as well and ever changed it to the physical NIC or VirtIO.. Pings works, Web works.. but yet cannot connect to the VM from the GNS3 client.

https://preview.redd.it/a5imonff9p0h1.png?width=465&format=png&auto=webp&s=de83c3c7b649b403b6f3f48a7869607e6cbc09cb

https://preview.redd.it/tef4nkwa9p0h1.png?width=289&format=png&auto=webp&s=af814e52a9e89cf37335e57a43f1f35b926d25c9

Heh guys,

New here, so when I installed proxmox for the first time it came with a local and local-lvm storage.

Of course, out of 500GB total, only 100 were allocated to LVM and the rest to LVM-thin (local-lvm)

So people said, hey you can simply remove it and leave only LVM.. after all, you can then create a ZFS storage using HDD.

Mind you my proxmox is installed on the SSD.

Now, I went to resize the local storage (LVM) and removed the local-lvm (lvm-thin), and turns out that I cannot resize LVM back as it fails with an unable to resize on-line something...

So this got me questioning, what's exactly the purpose of LVM? which is now showing the entire 500gb, but I cannot do anything, as I currently don't have any storage, and I'm not allowed to create a LVM-Thin anymore either.

If I want to reuse the SSD for VMs, then I'm technically screwed?

I'm so confused, sorry guys, I hope I made sense.

Hey guys!

New here, so I could have my terminology mixed up.

Anyway, I have a proxmox server with the following:

128gb RAM

x2 4TB Drives (Looking for Mirrored ZFS)

500GB NVME SSD.

Here is my goal:

I've never worked with ZFS, and as a small project of mine is to create ZFS pools (I'm not sure if you call it like that) to share folders across the network to keep backups and also Network images for my GNS3 instance.

Also, I'd like to have another pool to use for the proxmox VMs storage, not sure how crazy this idea sounds (I know proxmox does ZFS natively, but i wanted to ask if doing it 'my' way, is doable)?

Of course this adds an extra layer and I'd have to start the TrueNAS VM first and wait for it to boot up before the other VMs turns on.

I could also work with proxmox directly but I really don't wanna deep dive on cli and stuff, I prefer a 'set and forget' and I feel TrueNAS GUI is what I really need.

I'm not sure how to get started, or how to approach this.

any suggestions or feedback is always welcomed 😁!

Hey guys!

This is my first time I've worked and an MSP as L3 network engineer, and lowkey it's fun, but we got this important customer who wants us (alternate between my colleague and I) to go on-site every single day in case something isn't working- Like oh they unplugged something up, or.. oh an ethernet plug got unplugged..

I understand this is part of the 'job' but I don't feel quite comfortable going on-site every day as a network engineer to perform level 1 troubleshooting, that's not what I signed off on my mind.

I'd love to raise my concern but I'm not sure either if it's doable, or maybe negotiating, although due to it being a massive client, I don't think I can advocate for both me and my colleague. Perhaps suggesting a L1 to be onsite?

I really like my job in general, but I feel it's excessive for us to be on-site every single weekday, especially as we have more clients with us.

Is this normal as network engineers?

It's my first time guys so please be kind 🙏🙏

I'm open to any feedback/advice :)

Hey everyone, I need to share a wild experience with my failing 1TB NVMe Samsung 970. This morning, my laptop suddenly marked it as read-only.. It had failed with error "Could not send DTS Short". I was about to do a backup.. literally about to with my new workstation and then this happened, so I was really on edge.

After my earlier post, and helps of othered I urgently got a dual NVMe/SATA enclosure, placed the faulty SSD drive, and then connected it to my workstation. The drive, still BitLocker encrypted, kept saying access denied even though I had the key, attempt after attempt, third party and other third party.. nothing.. But, by some miracle, after countless attempts, it finally unlocked, just once. I rush into copying the important files directly to my workstation. I verified the files and most of my personal data was intact. A few image folders were corrupted, but nothing critical.

After that, I installed Windows on a separate 480GB SATA drive I had laying around, and thought, since it worked on the workstation, I could just do the direct backup on the laptop too. But after disconnecting it from the workstation and plugging it back into my laptop, even with the correct BitLocker key, the drive kept disappearing, no more access denied error, simply no recognition at all. I took it back to the workstation hoping for another miracle, but now it shows the same symptoms as the laptop, disappearing completely even with the correct key.

I feel like SSD gods gave me one final chance to safe my files, and I took it!,

RIP SSD (and f* you)

Hey guys, so I've never owned a homelab before, and my primary driver to get one is running GNS3. I want to start running complex topologies, learning new technologies and play and break stuff! I feel this would be a great way to practice and gain knowledge

Anyway, I've been in the hunt for a homelab that have both good threat count + good ram, and I think maybe a went a bit overboard, but my budget allowed it.

My main concern here is the SSD which is a bit low, however it has 4TB HHD, hopefully this isn't much of an issue.

Apart from this the important specs are;

x2 Intel Xeon Gold 6226R (32 Cores / 64 Threats)

128gb DDR4 Ram

Full Specs Below :

Dell Precision 7920 Tower Workstation

Core Processing & Memory

• Processors: Dual (2x) Intel Xeon Gold 6226R (2nd Gen Scalable)

• Total Stats: 32 Cores / 64 Threads

• Speed: 2.9 GHz Base / 3.9 GHz Max Turbo

• TDP: 150W per CPU

• Chipset: Intel C621

• RAM: 128GB DDR4 ECC-Registered

• Configuration: 8 x 16GB PC4-2666V (24 total DIMM slots available)

Graphics & Performance

• GPU: NVIDIA Quadro RTX 5000 (16GB GDDR6 ECC)

• Interface: 256-Bit / 448 Gbps Bandwidth

• Specs: 3,072 CUDA Cores, 384 Tensor Cores, 48 RT Cores

• Compute Power: 11.2 TFLOPS Single-Precision / 89.2 TFLOPS Tensor

• Outputs: 4 x DisplayPort 1.4 + 1 x USB-C

• Max Res: Supports up to 2x 8K (7680 x 4320) @ 60 Hz

Storage & Controllers

• Boot Drive: 256GB M.2 NVMe SSD (via PCIe adapter)

• Bulk Storage: 4TB SAS HDD

• Storage Controllers:

• MegaRaid SAS 9440-8i (Configured for SATA/SAS)

• Ultra Speed Duo PCIe M.2 SSD Card

• Drive Bays: 4-Bay Storage + 2-Bay Optical Drive

Chassis & OS

• Operating System: Windows 11 Pro for Workstations

• Power Supply: 1400W PSU

• Optical Drive: Slim DVDRW

• Security: TPM 2.0 Integrated

I'd love to hear your thoughts guys! How well will it perform, any feedback or things to consider?

I really really hope I made the right choice and bought a good workstation.

Hey guys,

So I want to buy an already setup homelab to run my gns3 topologies. I really wanna make extremely complex topologies as I want to start learning new technologies using a variety of vendors,

I saw this workstation and I think is really suited, but my knowledge in PC specs is extremely low, especially as some people has mentioned about CPU threads being extremely important (and differences between performance and efficient cpus) - Not sure which one is best or how to tell

All I know, GNS3 cares about ram, this one I found is DDR4, not DDR5, i donnt know if it matters much?

Eventually... I may upgrade it for gaming too? by installing a better GPU(?

But primarily I wanna use it as a homelab for gns3.

Specifications:

Model: Dell Precision 7920 Tower

Processors: Dual Intel Xeon Gold 6150

(Total 36 Cores / 72 Threads, up to 3.7GHz)

RAM: 128GB DDR4 ECC

Storage 1: 1TB SSD (Fast boot & applications)

Storage 2: 4TB HDD (Mass storage)

Graphics Card: NVIDIA Quadro P5000 16GB

Operating System: Windows 11 Pro (Activated)

Connectivity: Ethernet, USB ports, DisplayPort

Form Factor: Tower Workstation

(My main concern here is that this workstation seems to be power consuming, so not sure) - and Noise, that's two of my major concerns

Hey guys,

So I want to buy an already setup homelab to run my gns3 topologies. I really wanna make extremely complex topologies as I want to start learning new technologies using a variety of vendors

I saw this homelab and I think is really suited, but my knowledge in PC specs is extremely low.

All I know is, GNS3 cares about ram and core threat count.. (not sure why core threat count is important)

Can you guys give me your honest opinion about this specs?.. Eventually I may upgrade it for gaming too? But primarily I wanna use it as a homelab for gns3.

Lenovo ThinkStation P2 Gen 2 Workstation Desktop Intel Core Ultra 7 265K Processor Massive 128GB DDR5 RAM Lightning Fast 5TB Space | (4TB SSD+1TB HDD) Ethernet & Wifi7 & Bluetooth 5 Win 11 Pro