Does anyone work with RIP(v1 or v2) in their network? Networking |
- Does anyone work with RIP(v1 or v2) in their network?
- Please help me with this network black magic stuff.
- Cisco 4G LTE Card Outdoor Antennas
- L2 switch latency
- Where to find paid-for Cisco ASA assistance?
- Getting into Cisco programming - DevNet?
- [RANT] Cisco Viptela Onprem deployment
- Mid - Senior Network Security Engineer
- Tips on briefing non-technical executives
- Multicast Routing?
- Exposed Data Jacks
- Optimizing router config for very high latency (e.g., satellite) links?
- Outage Log Suggestion
- Biggest single-Area OSPF
- Big data IT analytics vs. network monitoring: does anyone have an interest in going to this?
- What material are router chassis made out of?
- Proactive Loop Detection
- Juniper Going to X86 at the Edge
- Switchport mode general
- Configuring BGP on HP 5900AF Comware switch
- Planning on taking my Network+ next month, few questions
- Any advice on translating Nortel to Cisco config?
| Does anyone work with RIP(v1 or v2) in their network? Posted: 18 Sep 2018 09:03 AM PDT I keep seeing that RIP is still out there, still supported by all the major vendors. I would think that it wouldn't be there unless there was a need for it. In all the places I've worked, either directly or as a consultant/pro services, I've never seen it out in the wild, only in the labs where I've worked with it. I'm actually curious if anyone does, if there's a reason why (legacy systems need it that just won't die, etc), and what (general) business is it running in? Edit: I actually really do appreciate the insight into this, the deployments where they are do make sense... if it works, why replace it :) [link] [comments] |
| Please help me with this network black magic stuff. Posted: 18 Sep 2018 12:53 PM PDT I'm not sure what's going on with our network. We have a LAN with roughly 100-150 devices. This LAN has two Ubiquiti Access Points, a couple of Netgear Routers in AP mode, consists of 3 gigabit switches, and a Cisco ASA that handles our firewall and routing. For some reason, every morning, it's a guessing game as to which computers can reach the internet. The only ones that seem to always work are the ones that are running or being used 100% of the time, which is only 3-4 machines. I spent the better half of 3 hours this morning trying to get 5 machines back online. They can reach anything on LAN perfectly fine, which is great. Pinging a host resolves IP address, but get no reply. Path ping and traceroute are useless, they go nowhere. Routes are correct, 0.0.0.0 through 192.168.55.1 which is our router, with the lowest metric. Usually, I'll end up just running ping -t google.com, and within 30 minutes I'll suddenly see packets. Then we won't have another issue till the next day. I'd assume it was the computers themeselves, but this happens on numerous machines randomly. Some have the same problem frequently though. Side note, our DHCP server is on a Windows 2008 R2 machine, and it shows numerous BAD ADDRESS fields. Some of the machines that are having these issues though are given reservations, so I wouldn't think it's a numerous IP issue?? I'm not an expert and get a little lost with the ASA, but it doesn't seem to show anything out of the ordinary...I'm only using the ASDM software to manage it though. Can someone please help? Also, here is what I mean by I'll start a ping and after waiting some time will get connected. I would say it's just time but if I leave the computer be and do nothing it'll never get back online. Sometimes the network icon in the taskbar will also SHOW that it has connection, and not be able to reach out. [link] [comments] |
| Cisco 4G LTE Card Outdoor Antennas Posted: 18 Sep 2018 05:23 AM PDT Hey all, Does anyone know of any good outdoor antennas for use with the 4G LTE-V EHWIC cards? The signal strength isn't very good in this building for our failover solution.. [link] [comments] |
| Posted: 18 Sep 2018 03:16 PM PDT Do modern L2 switches introduce meaningful latency? I was looking at some switches from Netgear that quote sub 3 nanosecond latency. Is it only L3 routers that cause the millisecond plus latency that we see during ping tests? [link] [comments] |
| Where to find paid-for Cisco ASA assistance? Posted: 18 Sep 2018 01:09 PM PDT My company has a need for someone to assist with configuring an ASA with a B2B VPN connection, and it's quickly becoming more complicated than any of us on staff can handle. I am sure if we had someone that knew what they were doing it's probably 30 minutes to an hour worth of work. We are absolutely willing to pay someone for their time, but my boss has made it clear that he wants to find a company to assist, not just a random guy on the internet. Plus if we need help in the future we have a company to work with that knows what they have already set up for us. Any ideas on what to look for? Is this something Cisco themselves offer, or are there ways to find consultants that could assist remotely? I know little about Cisco gear so this is out of my wheelhouse. Thanks! [link] [comments] |
| Getting into Cisco programming - DevNet? Posted: 18 Sep 2018 08:59 AM PDT Hi First of all sorry for the bad formatting, I haven't got around the reddit way of formatting yet... So I am working at a very big company (operating several sites in over 40+ countries) and I've got the time approval from my managers to finally start automating some of the more annoying ad hoc tasks, that haven't been automated from our developers. Normally I'm in the 3rd level networking team providing normal troubleshoting, configurations and designing. I want to get into all this programming, the big buzzword... ;-) I know that DevNet have so many resources (and maybe even too much, I cannot decide which way I should be going) Right now what we got it the Prime infrastructure with only our edge routers (money and licensing, but if I end up having some good PoC, upper management will pay for sure) What I want to be able to do, is basiclly being able to push variables from databases (could be SQL - this includes VLANs, IP ranges, masks etc) to specific devices and many even polling some data. I'm not sure if Prime is the correct way to do this kind of device configuration now-a-days, or if I should be focusing into the APIC style? The configurations can be done through CLI templates within Prime, but is this the wrong way of doing such big configurations? (We'll be talking over 25.000+ devices, that should be able to do bulk configurations if we end up with everything) I'm not at all sure if this made any sense, but I hope it gives a brief summary. TLDR: Should I move into learning configuration/programming with our Prime services or labbing up a APIC environment? Need to be able to pull variables from SQL database or similar and parse into devices. Over 25.000+ devices and over 500+ sites, each with different configurations. Should be noted we primary use older IOS devices (not XE or XR yet) I know DevNet has a lot of lessons and tracks, but need to know which to follow, to achieve this. Thank you very much. [link] [comments] |
| [RANT] Cisco Viptela Onprem deployment Posted: 17 Sep 2018 11:09 PM PDT We recently started deploying Cisco's Viptela solution within our SP environment. The installation guide available on their website is one of the worst documented guide I have ever read.
My main problem is that there is no other guide available online to help with the installation. Our Cisco SE doesn't have much knowledge on Viptela either. He is trying his best to scramble individual documents from their internal SMEs but its taking way to long. [link] [comments] |
| Mid - Senior Network Security Engineer Posted: 18 Sep 2018 09:16 AM PDT Hey r/networking , I have been browsing for a long time and I feel like I need some professional criticism or review . I am currently a Network Security Engineer and I am having difficult time finding a new job. I have been in networking for 5 years , and in Security for 2 years. I have several active certifications CCNP , CCNA Sec , F5 , CompTIA and just can't seem to land a new gig. I live outside a major city in the north east . Does anyone have any advice or idea on how to find some new jobs aside from the endless LinkedIn recruiters who call take a resume and nothing after . [link] [comments] |
| Tips on briefing non-technical executives Posted: 17 Sep 2018 08:39 PM PDT I'm in a managerial position where I have to give regular briefings on network status, outages, fix actions, etc to high-level, non-technical executives. I typically have 1-2 mins to explain complex issues succinctly and hopefully leave no room for questions that could lead us down a rabbit hole. Has anyone found a good "formula" that works for them when briefing technical issues to non-technical people? [link] [comments] |
| Posted: 18 Sep 2018 09:25 AM PDT Hopefully someone can help me out, as I'm not well versed in multicast at all. We're implementing a paging system where the paging server sits in a central location and the endpoints are in a separate building connected by a MPLS network. Here's a brief network sketch. When the server pages the endpoints, it uses multicast. If it's possible for the devices at site B to receive the multicast streams, I'm assuming I have to configure a PIM domain at site A, and configure site B to forward IGMP to the router at site A? My Site B config would look like this?
I'm not sure at all what I need to do at Site A, as I'm not clear on the differences between PIM-SM/DM etc. Any help would be appreciated. Thanks! [link] [comments] |
| Posted: 18 Sep 2018 01:45 PM PDT What have you used in the past to secure public facing jacks? I know the best option is to implement .1x or unplug the other end....I'm talking phyically locking them down, perhaps with a cover. Thank You. [link] [comments] |
| Optimizing router config for very high latency (e.g., satellite) links? Posted: 18 Sep 2018 11:35 AM PDT The real limitation is the speed of light, so I understand RTT will never be less than about 500ms in ideal circumstances. What router tuning have you done to get the most out of satellite? I found rfc2488, but that seems to focus more on specific TCP tuning that would be done on the sender/receiver, not routers (correct me if I'm wrong). It's also from 1999. Any current best practices, beyond the usual QoS toolchain, specific to high-latency / high-BDP links? [link] [comments] |
| Posted: 18 Sep 2018 11:23 AM PDT |
| Posted: 18 Sep 2018 10:58 AM PDT So, what is the biggest network (# of nodes) you've seen which all belong to area 0? I'm just curious how bad it could potentially get. [link] [comments] |
| Big data IT analytics vs. network monitoring: does anyone have an interest in going to this? Posted: 18 Sep 2018 01:49 PM PDT |
| What material are router chassis made out of? Posted: 18 Sep 2018 09:29 AM PDT So if I buy a, say, F5 BIGIP 1600 or a Catalyst 3750G, what is the outer casing made out of? It feels very hard, like maybe steel, though the undercarriage seems to be a more bendable aluminum material on some devices. Are these casings typically non-conductive to reduce electrocution hazards? Or are they designed to conduct heat out of the device? Do different vendors use different materials? [link] [comments] |
| Posted: 18 Sep 2018 07:46 AM PDT Wanted to reach out to see how/if others are using any sort of active reporting/detection and alerting on when an L2 port is looped. I am thinking this can be done with an SNMP Trap sending out an alert when a port goes into BLK state or a topology change. I'm in the middle of researching so I would love to share what I come across. [link] [comments] |
| Juniper Going to X86 at the Edge Posted: 18 Sep 2018 07:44 AM PDT Is it just me or is Juniper embracing X86 at the edge kind of a big deal? Juniper is making a lot more bets on Red Hat/Open Source. This includes using commodity x86 servers on the edge. Juniper has stubbornly stuck to ASICs and its proprietary hardware over the years, but it appears to me that it's finally evolving. As the world is going to virtualization, methinks this is the only way for Juniper to differentiate from Cisco. What do you all think? http://www.futuriom.com/articles/news/juniper-networks-launches-contrailedge-cloud/2018/09 [link] [comments] |
| Posted: 18 Sep 2018 07:39 AM PDT Let me preface this with the following... Basically, we have a MSP that has been brought in to tell the C level everything we already told them and now we are rushing through initiatives that should have been done a long time ago. My current issue is with network upgrades and the MSP keeps setting or leaving some ports unconfigured and set to mode general on the new switches. In doing so, we have run into issues where devices cannot communicate on our network. In order to resolve this, we either have to set one of the following... switchport general allowed vlan add ###,### untagged or switchport mode trunk I'm not even remotely an expert, so I am assuming because we have Cisco VOIP phones everywhere, this is why we need trunk on most ports. However, in order to get a Starleaf video conference system and a clickshare and a PC without phone back online I also had to set their ports to trunk mode as well, since general wasn't working. So I'm wondering if anyone else actually uses mode general or is this some weird problem with our network? update I have been able to speak with someone at the MSP and it appears that we have a few device types on our network, which do not work with switchport mode general. [link] [comments] |
| Configuring BGP on HP 5900AF Comware switch Posted: 18 Sep 2018 06:34 AM PDT Hello- I'm trying to configure a simple BGP session on an HP 5900AF running comware. Anybody have experiance with this and can tell me what I am doing wrong? Here's what I have. The switch is sending the BGP session startup but not connecting to the peer device. [link] [comments] |
| Planning on taking my Network+ next month, few questions Posted: 18 Sep 2018 11:51 AM PDT
Thank you in advance, [link] [comments] |
| Any advice on translating Nortel to Cisco config? Posted: 18 Sep 2018 06:23 AM PDT Currently working on replacing a bunch of old Nortel switches with Cisco gear. I have quite a bit of experience with Cisco, but not a lot with the Nortel devices. [link] [comments] |
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