Rant Wednesday! Networking |
- Rant Wednesday!
- Can I use LACP between two switches to increase bandwidth for multiple users?
- Class Based Quality of Service
- DWDM to Full-band optic, will the link come up?
- SNMP OID to poll to determine if a LAG member is down?
- Problem with Aruba 535 AP and Cisco 3850 Switch
- Anyone familiar or have used Harting RJ Industrial Multifeature RJ45 connector?
- Bit confused on how class policies for CoS working
- Connecting two buildings
- Flipping Eigrp delay value between two routers and port channel
- Migrating F5 LTM to virtual but stuck on the design
- Network Design (practice question)
- Adding Second Interface with Different Public IP for Same ISP
- Is it possible for cellular companies to open up a certain website access without opening the entire internet?
- Different SNMP communities
- Anytime use Software defined perimeter (SDP)? If so, which one?
- Force 10 VLTi Backup Link Question
- Cisco FP8360-K9 Hard drive missing
| Posted: 27 Apr 2021 05:00 PM PDT It's Wednesday! Time to get that crap that's been bugging you off your chest! In the interests of spicing things up a bit around here, we're going to try out a Rant Wednesday thread for you all to vent your frustrations. Feel free to vent about vendors, co-workers, price of scotch or anything else network related. There is no guiding question to help stir up some rage-feels, feel free to fire at will, ranting about anything and everything that's been pissing you off or getting on your nerves! Note: This post is created at 00:00 UTC. It may not be Wednesday where you are in the world, no need to comment on it. [link] [comments]  |
| Can I use LACP between two switches to increase bandwidth for multiple users? Posted: 28 Apr 2021 04:54 AM PDT Hi! A bit new to networking. Right now in the office we have a Qnap NAS connected to a switch with a single cable, and then that switch is connected to another switch. That last switch is connected to a bunch of PC clients that need to access the Qnap. Of course, that is one hell of a bottleneck, since there is only one cable between the switches and the for the Qnap. Both the switches are the same model and support LACP. My Qnap has 4 ports and supports it too. I want to aggregate those 4 ports on the qnap and the switch, and then aggregate like 4 ports on each switch to allow for more client traffic. I know each client will still be at 1Gb, but at least that would reduce or remove the bottleneck of having multiple clients at the same time. Am I right? Is that how it works? Sorry for the newbie question! [link] [comments]  |
| Class Based Quality of Service Posted: 28 Apr 2021 10:53 AM PDT I work for a small ISP and we just begun implementing Cisco Class Based Quality of Service (CBQoS). I'm looking into what network monitoring options are available for CBQoS. So far, the best looking tool I've found for the job is SolarWinds NetflowTrafficAnalyzer. However, this product is primarily designed for NetFlow ingestion - they just happen to lump CBQoS monitoring in there for some reason. This would result in our paying a lot more for licensing than is really necessary for CBQoS. People who are using and monitoring CBQoS on their devices, what do tools do you use? [link] [comments]  |
| DWDM to Full-band optic, will the link come up? Posted: 28 Apr 2021 03:45 PM PDT I mostly deal with DWDM for long haul situations, but we have a vendor that wants to deliver to us with a full-band 10G (ZR) 80km optic. As far as I am aware, most optics are transmit narrow, receive wide. Can I save some $$$ and use one of the 10G 80km Tunable DWDM optics that I already have on hand as a shelf spare for a ZR optic to use until we can order a new one? E.g will the link come up with a DWDM on my end transmitting to a ZR on their end. I have done it with 1G optics, but havent tried (and dont have the parts on hand atm to test) with 10G SPF+. [link] [comments]  |
| SNMP OID to poll to determine if a LAG member is down? Posted: 28 Apr 2021 10:50 AM PDT I'm trying to figure out how I would determine via SNMP polling that an LACP member port is down? I want to use Prometheus to poll a device and get a metric back that would tell me when an LACP bundle member is down/not functioning properly. I've looked through various MIBs, but I can't seem to find something (Cisco & Juniper) that would tell me the Operational Status of LACP bundle members [link] [comments]  |
| Problem with Aruba 535 AP and Cisco 3850 Switch Posted: 28 Apr 2021 09:52 AM PDT I've got four APs that pull an IP address, connect to the controller, and seem to function perfectly well, with the exception of there are no WLAN's active. When I do a show lldp neighbor on the switch, the Capability field is blank, where there should be a "W". Can anyone help me? [link] [comments]  |
| Anyone familiar or have used Harting RJ Industrial Multifeature RJ45 connector? Posted: 28 Apr 2021 04:42 AM PDT Came across it this morning. I've always had probs crimping cat5 and thought this may be a solution. But judging from the video, this doesn't seem to cut the time down as proclaimed. [link] [comments]  |
| Bit confused on how class policies for CoS working Posted: 28 Apr 2021 03:25 AM PDT Hi, at the ISP I work at, we usually have 4 service policies we implement on EFPs. The policies are the following:
I read the cisco documentation and it seems pretty straightforward what confuses me is how we're doing this in our network. If I do a: this is the output: This applies for all of the 3 MONO_CoS policies, the only value that changes is the id. If these policies should match just one of these 3 CoS, shouldn't they just contain the revelant CoS value under their matching criteria? Bit different for the "Multi_Forbidden" policy which has two class maps assigned to it:
The output is this: I am assuming the matching criterias are recursive so once a policy is applied on an EFP the router will go through the class until it finds a match then stops. So in case the router receives traffic not matching cos 0 1 and 5 rather than dropping it, thanks to the other entry it will still forward it. Which, is the only explanation I can give myself right now. However, if that the case, why aren't the policies for the mono CoS configured in the same way? E.G. 2 class map, one containing solely the cos the policy should match the second containing the rest? Could someone kindly explain or point me to some documentation to read that explains this? I haven't been able to find any that deals with multicos. Thanks in advance [link] [comments]  |
| Posted: 28 Apr 2021 11:05 AM PDT Hi all My company's looking at renovating a building we own accross the street and I'm looking at a solution to try to extend our LAN there. In a perfect world, we'd have a bridge between the two buildings and I'd just pull a few fibers across it, but that won't happen. I'd like to run a few fibers underground between the two buildings, but our CEO thinks we may have issues getting a permit to dig up a busy city street. Leasing a line doesn't make any financial sense seeing as the place is literally across the street (I told him as much, though he still wants a quote). So my question is whether anyone's ever used something like Ubiquiti's airfiber antennas to connect a pair of buildings. If so, did they work well? Were there issues in inclement weather, etc. [link] [comments]  |
| Flipping Eigrp delay value between two routers and port channel Posted: 28 Apr 2021 10:17 AM PDT Currently I have router01 that has an Eigrp delay of 1000 on it providing internet and dmvpn services. the router02 has eigrp delay set to 1500 same set of services. Both routers port channel into a 3750 switch with 1000/1500 delay values on each respective interface. I need to "flip" the routers so that router02 (delay 1500) is primary for DMVPN and Internet. What is the best method to do this? 1) change delay value on switch first? 2) change delay value on router02 (from 1500 to 1000) now I have both routers using same delay, but my current bandwidth command (300m) in router02 is higher 3) change delavaude on router01 (1000, to 1500) now it matches router02 delay but it's current bandwidth statement is lower 100 meg vs 300m I will be doing this from remote so I don't want to get kicked out and not need to use my "reload in 20". suggestions? [link] [comments]  |
| Migrating F5 LTM to virtual but stuck on the design Posted: 28 Apr 2021 06:26 AM PDT I am in the process of moving our F5 over to a new pair of virtual LTMs but I am stumped on how best to do it. The issue is that the existing LTMs have internal, DMZ, and public internet networks on them. Our VMware hosts do not have the DMZ or internet networks on them and I really don't want to extend them into it. The ultimate goal is to create a separate VM cluster for public facing servers but we just aren't there yet. Any ideas on how best to design this out? [link] [comments]  |
| Network Design (practice question) Posted: 28 Apr 2021 06:26 AM PDT Hi All I'm trying to re-sharpen my networking skills, I don't do much networking in my current job, and have been there for 10 years. A bit of backround - I had my CCNA which expired 5 years ago, and worked in with Cisco Routers and Switches in my previous job. I'm eyeing a new networking role and going through practice scenarios. I'm given a scenario to design an office with four floors, each will have a hundred devices requiring wire and wireless connections. Assume a worker will undock their laptop and use a wireless connection. Going into this, I figure I keep things simple and use a /25 mask providing 126 usable hosts. Usable host range for each floor - 192.168.0.1 - 192.168.0.126 192.168.1.1 - 192.168.1.126 192.168.2.1 - 192.168.2.126 192.168.3.1 - 192.168.3.126 Am I going down the right path? I'm a bit unclear how I would design the wireless and wired connections. Would I create 2 vlans isolating each with a DHCP pool? I look forward to any feedback! [link] [comments]  |
| Adding Second Interface with Different Public IP for Same ISP Posted: 28 Apr 2021 06:11 AM PDT We have a situation that I'm not sure how to proceed correctly. This location is currently utilizing two different firewalls - a Sophos XG 310 and a Sonicwall NSA 3500. The way this was originally configured, a small switch was put in place before the firewalls, with one ISP connection coming into the switch, then one connection from the switch going to each firewall. They have one public IP from the ISP going to the Sonicwall, and one public IP (for the same ISP connection) going to the Sophos. I am wanting to move the public IP that is currently on the Sonicwall to the Sophos without disrupting the flow of traffic to the ISP. We have several services that use the public IP that is currently on the Sonicwall. How can I move the connection from the Sonicwall to the Sophos as a second interface for the same ISP and allow communcation for the services to work properly? [link] [comments]  |
| Posted: 28 Apr 2021 01:33 PM PDT There's a project I'm taking over. The aim of the project is to allow citizens of a country to have access to a certain website which belongs to the government. The axis is of course true cellular Internet. Additionally, all the cellular companies need to be involved. As a person who has planned and initiated this project, I want to know if it's possible in the first place. I do know that in the past there were commercial packages available by the cellular companies that would give the subscribers access to Facebook for a very cheap price and even if they had monthly data subscriptions it wouldn't have deducted while using Facebook. [link] [comments]  |
| Posted: 28 Apr 2021 05:20 AM PDT Hello all, Im working at a large networking company (not an ISP). I realised that different customers of ours have different SNMP communities. I was wondering, what is the benefit of having different communities for each customer? Why do we have that, is it because of security reasons? Appreciate your replies. [link] [comments]  |
| Anytime use Software defined perimeter (SDP)? If so, which one? Posted: 27 Apr 2021 10:52 PM PDT I've been working on zscaler private access for a bit and was wondering what the experience on other vendors like appgate, perimeter81, netskope, etc is like? [link] [comments]  |
| Force 10 VLTi Backup Link Question Posted: 28 Apr 2021 03:39 AM PDT I am looking to replace a 3048 stack (TOR with a LAG to another rack in the DC) with a 3048 in a VLT config. This is due a recent issue with the existing stack needing a FW update, and I need to take both offline to complete that. The issue I have is with the backup link. Both management ports have an IP, if I cable them directly to each other, its fine - but I obviously cannot manage them then. So, I thought I would plug each one into a port on the peer, the backup link will not connect, the ping will not respond. I plug a laptop in and I can ping both management ports no problem. So i know the VLT is working and IPs are fine. Does anyone have any ideas how I can get this backup link working? Thanks. [link] [comments]  |
| Cisco FP8360-K9 Hard drive missing Posted: 28 Apr 2021 12:55 AM PDT Hello community, I'm reaching out because after a long research I'm a bit stuck here. We have found a Firewall FP8360-K9 but there is no hard drive inside. On Cisco datasheet's I can only read '' Solid State HDD'' but I'm not able to find what is the default pn.. Does anyone have one of those complete to could communicate the p/n or someone that has a clue? Help is greatly appreciated! [link] [comments]  |
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