Blogpost Friday! Networking |
- Blogpost Friday!
- Just ended a two hour call with a customer that buys DIA from us and wanted to add a wave to another one of their POPs, but the conversation wasn't really what I thought it was about...
- Anyone here ever switch to Sales Engineer? Thoughts?
- Has a book about ssh, SSL, VPN, VPC...?
- 2 location WAN design question
- ASA Cluster Control Link Question
- Networking project idea
- ONT/Router Minor Alarm
- Anyone implemented AWS Direct Connect to connect their DC to cloud?
- Periodically unable to get out to the internet
- Huawei S12700 - Where can I find EOS/EOL information for the cards/modules?
- Best book for IPv6 enterprise networks in 2022?
- Router Config as Proprietary Information?
- Unusual topology issue: Spanning Tree
- Are most switch / router cli commands to some extend the same?
- Question about cellular network GSM and its location area
- Cisco Firepower 2130 HA failure
- Problems Creating a vlan trunk on Mikrotik RB5009
- CISCO ACI endpoint count email trigger
- Help with Network Design
| Posted: 28 Apr 2022 05:00 PM PDT It's Read-only Friday! It is time to put your feet up, pour a nice dram and look through some of our member's new and shiny blog posts. Feel free to submit your blog post and as well a nice description to this thread. Note: This post is created at 00:00 UTC. It may not be Friday where you are in the world, no need to comment on it. [link] [comments] |
| Posted: 28 Apr 2022 06:22 PM PDT I spend several hours a day doing sales engineering, and in the course of talking packets, waves, MTU, throughput, peering, and everything in between, I've learned that sometimes people will just call to talk. A customer calls and asks about adding a wave to add redundancy to another one of their sites. Right now they are SD-WAN and they of course want the benefit of lower latency and vertical integration by adding a wave to the mix, totally normal stuff. After a while, he starts talking about his personal life and what's going on. You end up kind of becoming friends with these people over the course of time working with them. You recognize their voices, see their posts on linked in, and just generally keep up. After about an hour into the conversation, he just sighed and said, "I don't really need the wave, man." I think to myself, "Ah, I guess it's out of his budget, it is kinda pricey." I tell him I can work with the engineering team on lowering the price, and that we can stretch it to a longer commit to compensate for build out, or even go back and see if we can bundle or change something else to lower the monthly cost. "No, to be honest, I just called because I need someone to talk to and you were the only person that came to my mind." He starts sobbing, and telling me about how after he graduated from University, he just felt so disconnected from the world, and all his relationships just felt so superficial. He said that his only friends are work friends and that he doesn't even feel like anyone talks to him just to talk. We ended up talking about life, emotions, and what it really means to live in this world for another hour. I even stayed after and came home late. The only reason he quit talking is that his kid had gotten home from school. The crazy thing? I have these conversations like once a week. I tell people we are like family, and that we're not just here as salesmen. I think it's important we remember that we all have shared interests in our jobs, and that it doesn't mean we aren't people, and we aren't all one in this big scary world together. When he apologized at one point, my managed walked in, and I didn't know what to say, so I just said, "Don't worry man, there's enough fiber for everyone. Call back anytime." He just said, "Thanks, is it okay if I call next week?" and I said, "Sounds good, see you next week." My boss asked how that call went, and I said "great" and he patted me on the shoulder and said, "sounds good". I half way wonder if he wasn't listening too because he was a little teary eyed. Stay close, friends, and remember, there's enough fiber for everyone. [link] [comments] |
| Anyone here ever switch to Sales Engineer? Thoughts? Posted: 29 Apr 2022 06:25 AM PDT In the interview process for an engineer position with the sales team- not necessarily a "sales engineer" as I wouldn't be selling but rather updating customers on the newest products and helping them get set up for new projects, etc. I'm coming from a full-service break/fix environment so it's a bit new to me. Have any of you made the jump before? What were your thoughts? [link] [comments] |
| Has a book about ssh, SSL, VPN, VPC...? Posted: 29 Apr 2022 08:20 AM PDT I'm searching for books to understand better the AWS, I found the "Computer Network" book, which covers things like UDP, TCP, DNS, etc... but I don't find one book that covers things like SSL and VPN, where I can found content about that? [link] [comments] |
| 2 location WAN design question Posted: 29 Apr 2022 11:06 AM PDT A very rough draft of what I have Basically we have services in both locations. The majority are at the remote DC. We have a few years left until we move most if not all services go back to the main office. Goal is saving money by using the DC less and less. Our public routing is mostly static, the services in the RDC routes one way and the main office the other. I'd like to be able to migrate a service from RDC to the MO with as little disruption as possible. Is this a job for BGP? Personally I'm not too familiar with it, just on an academic level. What will I need to do to get this going? From what I understand the public IPs in both locations would have to be pooled so a service can route multiple ways. We'll hire outside help of course but I'd like to know and get a grasp of what is required, etc. [link] [comments] |
| ASA Cluster Control Link Question Posted: 29 Apr 2022 10:55 AM PDT We have a pair of 5545s in a Master/Slave cluster. I monitor the cluster control link with LibreNMS and noticed an anomaly after a power loss this past weekend. Where traffic on that link is generally close to or less than 10M in both directions I am suddenly seeing 70M-130M sustained IN on the ASA I am monitoring (Currently Master). This started the moment power was restored to the rack containing the ASAs. I'm seeing a slight increase in CPU as well, but nothing that is affecting performance. I noticed after a bit of digging that MTU is still set to 1500 and this should be set to 9216, but if this is the issue then I'm not sure why this just appeared now. Everything else about the cluster appears to be normal. I have reloaded each ASA independently multiple times and the active Slave switches to Master as it should and vice-versa. Thoughts? [link] [comments] |
| Posted: 29 Apr 2022 10:41 AM PDT I wanna start a new project and I want your feedback. I mainly want to document the entire interdomain ecosystem, using all publicly available data... mostly using APIs. Could use routeviews, ripe ris, irr, pch, ripestat, caida, etc. I am quite positive that there will be inconsistencies, but i still believe that this idea, a system that has aggregated bgp data would be useful. what do you believe? [link] [comments] |
| Posted: 29 Apr 2022 08:20 AM PDT I have a Zhone ONT/Router and after sometime I get those two minor alarms. Minor Alarm: User locked out from Http Minor Alarm: User locked out from Ssh If I restart the ONT they go away but several hours later appear again. Can someone please explain what are those minor alarms for and what is causing them? [link] [comments] |
| Anyone implemented AWS Direct Connect to connect their DC to cloud? Posted: 29 Apr 2022 07:35 AM PDT Our org is looking at migrating to cloud and we are going down the AWS route and getting two Direct Connect links. So far most of the consultants and people we have spoken with know of Direct Connect but don't seem to actually have any experience deploying and working with them. Has anyone here been through a deployment or know of any good resources to help? Some of our staff have been through some AWS training but mostly what we have been on is geared towards administration and deployment of resources in the AWS cloud rather than covering anything like direct connects and connecting the cloud to the real world. Even where it did cover it was more like training for sales certification so you could tell the difference between VPN or direct connect to a customer but no hope of actually being able to deploy it for them based on the training. Even some of the massive organisations who were on the training who had huge cloud presence were still running over VPN only and were looking to get Direct Connect sometime in the future so it kind of feels like we are trying to implement something but we can't find anyone else who has actually been through it. The more we look in to it the more lost I feel so hoping we are not alone? Cheers. [link] [comments] |
| Periodically unable to get out to the internet Posted: 29 Apr 2022 03:18 AM PDT Hi All, I am looking to pick the brains of the reddit collective. I will preface with my networking skills are not great, they are competent at best. I am looking into an issue where some machines will be unable to get out to the internet until we reconnect the dock they are working on. It is only a very small set of users who flag this per day (2-3 per day) It is rarely the same people who flag it. It is rarely the same desk (we Hotdesk) It is usually within the first hour of the day When I have gone to investigate I can ping both the IP address and FQDN of our Internal DC's, the default gateway, our managed firewall and a server in a remote office (we are on an MPLS). The user has an IP address in the correct range when doing ipconfig /all but when attempting to ping or tracert anything like google.com I get "unable to resolve target system name". Everything points to DNS but I cannot wrap my head around what could be happening or why. Any help is appreciated. Thanks in advance. [link] [comments] |
| Huawei S12700 - Where can I find EOS/EOL information for the cards/modules? Posted: 29 Apr 2022 06:38 AM PDT Hi, sorry if I type something stupid, I'm still new to this, but I need the End of Support dates for some Huawei S12700E cards, I tried searching for their names (for example, the LST7G48TX5E1 switching card) but only found technical information such as number of ports and software versions supported. When searching for EOS I only found it for the software versions, where can I find for the devices? [link] [comments] |
| Best book for IPv6 enterprise networks in 2022? Posted: 29 Apr 2022 06:15 AM PDT Hello, I am aware of the "IPv6 for enterprise networks" from Cisco Press, however that book is 11 years old now. i was wondering if someone knows a better, more recent alternative. [link] [comments] |
| Router Config as Proprietary Information? Posted: 28 Apr 2022 07:54 AM PDT In the US. #Edit - I should have used the term Intellectual Property - IP not PI We're taking over a client from another MSP. The previous MSP is refusing access to the client owned router, and planning to wipe it to factory defaults as part of their offboarding process - claiming that the network configuration is proprietary information and part of the service they provided - not owned by the customer. Is there a precedent for this?It's a basic setup and I'm not worried about replicating it - but I had never heard of this before. [link] [comments] |
| Unusual topology issue: Spanning Tree Posted: 28 Apr 2022 03:15 PM PDT So I have an unusual topology where multiple switches feed into 1 main switch, on a single port. So the "spoke" switches each have a trunk port, and all those trunk ports connect to a single trunk port on the "hub" switch. Spanning tree is glitching, getting starved for BPDU's on some of the switches. And I'm getting Mac addresses reflected from the switches for devices that aren't on that switch, but in a shared VLAN. Anyone have a best practices, or ideas for this? [link] [comments] |
| Are most switch / router cli commands to some extend the same? Posted: 28 Apr 2022 01:07 PM PDT Hi, i am not involved a lot with the network part of our company, but had to configure some ports here and there and did some OS upgrades. The CLI commands for DELL Force10, HP, HP Aruba, Cisco, DELL new N and P Series all seem kinda the same to me (i have done some basic stuff, nothing too complex)! Are the CLI commands standartizied for switches and routers? If i learn DELL or Cisco CLI, can i pretty much pick up the other ones pretty quick? [link] [comments] |
| Question about cellular network GSM and its location area Posted: 28 Apr 2022 06:59 PM PDT In a cellular network GSM for example , in case of a region where mobiles receive a lot of calls , the cellules sizes will reduce does that mean that the location area will reduce too or it will stay the same by adding new cellules (frequencies)? [link] [comments] |
| Cisco Firepower 2130 HA failure Posted: 28 Apr 2022 06:51 PM PDT firepower mode: FTD firepower version: 6.5.0.5 FMC VERSION : 6.5.0.5 The two ASA HA link have two L2 switch the error info see below : "not heard hello from mate " "recovered from communication failure" I checked switch not any problem . how continue troubeshoot? [link] [comments] |
| Problems Creating a vlan trunk on Mikrotik RB5009 Posted: 28 Apr 2022 04:53 PM PDT Copy pasta from r/mikrotik since networking doesn't allow cross posts. I have been chugging away at this all day and cant seem to get anywhere. I am trying to create a vlan trunk on the sfp+ port and no traffic seems to be getting through. Not sure if its the RB5009 config or the switch config, but if I move it to an ethernet port and plug my laptop in I still can't get a connection. I tried disabling vlan-filtering with no affect as well If you could take a look that would be much appreciated. [link] [comments] |
| CISCO ACI endpoint count email trigger Posted: 28 Apr 2022 11:22 AM PDT Could you please help me with this, "I would like to create an email notification if CISCO ACI endpoint count crosses the threshold"? [link] [comments] |
| Posted: 28 Apr 2022 08:15 AM PDT Hello, looking to see if I can get some assistance. I'm trying to implement a new internal network on top of an existing one. Currently running mainly cisco gear at the office but we've recently purchased some NAS's and a netgear "smart" switch that I'm trying to create a new network for some of the machines in the production area. I want to segregate this 10gig netgear switch within the NAS as well as some of the production machines that will be added into this network meanwhile having the current network as well. So far I've connected the Netgear switch into one of our cisco switches configured with a static IP so I can get to the GUI. We'll call this VLAN 4. My machine (IT) is on VLAN 5 which is allowed to get to any VLAN via a firewall rule (Sophos). I've connected one of the NAS's directly into the Netgear 10gig switch. The NAS also has a 1gig connection to the Cisco switch so I can access the GUI. I've also connected a production machine that we added a 10gig NIC card to the Netgear switch. When doing a file transfer, it looks like it's prioritizing using the existing 1gig connection to the NAS. I've created a new VLAN within our firewall VLAN 91 and assigned both the production machine as well the NAS with a static IP. Any suggestions? [link] [comments] |
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