QSFP+ to SFP+ Dark Fiber Networking |
- QSFP+ to SFP+ Dark Fiber
- Layer 1, 2 & 3 Presales guys- How long does it take to realistically put a quote together?
- FS switches
- VOIP- ICMP Policing?
- Help with Ubiquiti Wireless
- Wireless Roaming Understanding Help
- Advanced network masks
- Cant ping default gateway,any device on the LAN, but can go online and receive pings (not firewall issue)
| Posted: 03 Jun 2021 01:31 PM PDT Hi - our datacenter is giving us a dark fiber pair to connect two racks. They will be LC handoffs. The problem is, we have Cisco Nexus on one side with 40/100 QSFP+ ports and Cisco 550X on the other with 10Gbps SFP+. Can I use a 40Gbps QSFP+ LC transceiver on the Nexus side and connect it to a 10Gbps LC transceiver on the SFP+ side, and have it communicate at 10Gbps? edit: Thanks everyone - datacenter confirmed that this QSFP+ to SFP+ from fs.com is what we need. They were initially hesitant to say for liability reasons, I suppose. [link] [comments]  |
| Layer 1, 2 & 3 Presales guys- How long does it take to realistically put a quote together? Posted: 02 Jun 2021 09:30 PM PDT Hey reddit, I recently started a new gig as a presales consultant. I have a background as a network analyst/engineer and Infrastructure PM. So thought it would be nice to try presales. The issue is the CEO of this business says I'm drawing up quotes too slowly. I've always been an efficient worker so this comes as a shock. Although the CEO is known to be quite toxic so now i'm questioning if i am slow, or if his work mentality is nothing is ever good enough. Currently i'm drawing up a router/switch installation, WAP upgrade, and desktop push across 95 sites nation wide - with 5 user desktops per site - plus a major site requiring a 90 switch refresh and 400 desktop deployment - some UAT, E-waste, staging for all network devices and desktop machines. - account for all the logistics It's taking me around 6-8 hours in total to draw up the quote, and totaling close to $500,000AUD. Is 6-8 hours unreasonable? he says it should take me 3. This is a guaranteed job so I want to make sure my implementation guys don't hate my existence. If you got some reference numbers on how long it would take to turn around 6 figure quotes with some complexities that'd be appreciated Cheers, Chillandnetflix [link] [comments]  |
| Posted: 03 Jun 2021 08:41 AM PDT I'm tempted to try out a couple FS switches in a lab to see if they are decent or not. But I don't even want to bother if others have already done so. I can't even find what the CLI is like and wether I could manage them with IMC or similar. Anyone had any experience with them? We are an aruba house right now and obviously we would be loosing out on lots of support.... but a L3 switch with 20 10g SFP+ ports for under $2000 is kind of hard to ignore haha. [link] [comments]  |
| Posted: 03 Jun 2021 02:52 PM PDT Hello, So just some background, I'm fairly new to the VOIP world and networking world in general so I apologize in advance if I say anything stupid. But onto my question: I've taken traceroutes from a cloud hosted VOIP server to a local network to determine audio issues and I've often seen hops that have sometimes 80% constant packet loss. I've been told by my superior this is not accurate and it's something called "ICMP policing" and if there's icmp policing you won't be able to tell true pack loss on that node if there even is any. This seems accurate as I've seen this on systems where audio quality is perfect even though some node is showing that same level of packet loss. When I search online I can't find anything about icmp policing or what it actually is or why it results in a seemingly huge level of packet loss. Can anyone explain this to me? Is there anyway to get an accurate measure of nodes that have icmp policing? Is there anyway to tell if a node is for sure icmp policing or true packet loss? Thanks in advance for any guidance [link] [comments]  |
| Posted: 03 Jun 2021 09:11 AM PDT Hello, Wanted to see if someone with more experience than me can help me or point to what I'm doing wrong. I'm fairly new to this hardware/OS platform so pardon my noob questions... Here is the info on hardware I'm using:
What my intent is (to which I'm not having much luck) is to create 3 SSID's at the office I work at.
Only office Users wi-fi and Internal office devices can see each other whereas the guest Wi-Fi does not see the internal network or other SSID devices. Things I've done to this point:
My question is, how do I accomplish these settings; where the guest Wi-Fi can still access the internet, but cannot see Office SSID, or any internal physical network. Basically a straight path to the internet. I've poked every setting there could be and I'm not finding any settings that would isolate one network like the intention I looking to do. Thanks in advance UPDATE: with the help below, I was able to get this resolved... You guys/gals ROCK!!! [link] [comments]  |
| Wireless Roaming Understanding Help Posted: 03 Jun 2021 12:56 PM PDT Trying to understand something. I'm reading something that says if dhcp renews during wireless roaming it can cause a problem. I understand that it could be a problem, but I don't understand how it could happen. So say I have a WLC in a DC, and 10 lightweight APs in a building for arguements sake. I go in the building with my laptop and join SSID X. On my controller I have an interface that related to SSID X, with an IP address bound to VLAN 10 (for arguements sake). Now, The intention is to roam around the building, staying on SSID X. So I go from AP1 to AP2 staying on SSID X. Since I moved from AP1 to AP2, the subnet hasn't changed, since I've not changed SSID, I'm still on VLAN 10 (and there is 0% chance that will ever change). So like, how can DHCP ever renew during roaming since 99.9% of human people don't switch SSID every time they roam, you will never leave your subnet. What am I missing? [link] [comments]  |
| Posted: 03 Jun 2021 02:56 AM PDT Hello Redditors I'm sitting here with bit of a challenge and need your input. I have a Cisco ASA firewall with this object NAS_10.32.1.64 and it is made with these propeties. IP: 10.32.1.64 Netmask: 255.224.1.254 As far as I understand it this object will contain this range of hosts: 10.32.1.65 - 10.32.1.66 10.33.1.65 - 10.33.1.66 10.34.1.65 - 10.34.1.66 10.35.1.65 - 10.35.1.66 and so on.... Agreed or am I wrong? Bonus: This works and I didn't make it. [link] [comments]  |
| Posted: 03 Jun 2021 05:09 AM PDT Hi everyone At work we just had a new employee arrive and I set her up with a laptop. I installed all the apps she needed but when I got to installing her printer over the network it didnt work. Tried adding the same printer on my own laptop (and one other) as a test and it worked. It turns out this laptop I got her (not new, been in our server room laying around for a year or so) cannot ping anything. Not its own default gateway, not any printer or any other host. It also cannot connect to our OpenVPN server. It is connected to the same access point as everyone else. This laptop can also receive pings (and it replies to them) from any other hosts, and can ping the loopback address. Another very strange thing is that when I tried disconnecting it from our network, then connected it to a hotspot I made off my phone, and then reconnected it back to our network, everything worked again for 20 seconds or so and I could again ping anything on the network. This is not a firewall issue since I m looking at the rules and there are no block rules set within the VLANs, only for the WAN interface (and those are just to block bogon,private addresses) I am honestly completely stumped as to what is happening The only suggestion I could give to her was to complete the Windows update that has probably been pending for a while since it has last been used. Could this be the issue? She will do the update overnight so it does not interrupt her work. In the meantime ,if anyone has any suggestions I welcome them. Thanks so much everyone! [link] [comments]  |
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