Spineless EVPN fabric design Networking |
- Spineless EVPN fabric design
- Terminology question about internet redundancy
- So what's the point with python for network automation?
- About to join Palo Alto tac any advice ?
- Layer 2 issue with new switch setup
| Posted: 31 Jul 2021 01:26 PM PDT Hi All For cost purposes, I am working on a design to build out a network but I would like to leverage EVPN for the setup as it has several advantages one of them being able to use distributed anycast gateway. Following was going to be my proposal: I need to connect servers to the RR1 and RR2 and this will also connect upstream to a firewall via L3 BGP. On RR clients A, B, C, additional servers will be connected and I wanted to be able to use the distributed anycast gateway as well on them. I have had several outages in regards to spanning tree not to mention at times vendor incompatibility as well and have decided we no longer need to depend on this legacy technology any further. Any help or advice is you see any problems on the setup or improvements that could be made would be much appreciated. [link] [comments]  |
| Terminology question about internet redundancy Posted: 31 Jul 2021 04:12 PM PDT Can someone here help me remember a networking term? The internet (TCP/IP) was designed such that if one section of it went down, it would re-route to other parts and keep working. There was a term for this. I don't remember if it had the word "redundancy" in it, but it might. Can anyone help? Thanks. [link] [comments]  |
| So what's the point with python for network automation? Posted: 31 Jul 2021 04:03 PM PDT I'm a CS student whos been interning at a rural ISP for a couple of years now. As of recently, I've been researching the roles of DevOps engineers and network administrators and automation techniques and technologies that are used in the industries. What I find interesting about the two is that they both seem to have an emphasis on using traditional programming languages to automate tasks that they or others might do on a manual basis. I'm just having trouble finding a point with using a programming language over tools such Terraform and Ansible. What kind of tasks can you do in python that you couldn't do in the aforementioned tools. Being someone who is a fairly competent programmer (albeit in an unprofessional capacity) and works in IT, it just seems like a better idea to use tools that are specific to what is trying to be accomplished. Especially if tasks can be expressed in a more declarative manner and the implementation can be left up to the maintainers of the tools. I haven't actually used Terraform or Ansible before but seeing how they're used, suggesting the use of python seems like we're teaching people to reinvent the wheel each time they want to automate a task. [link] [comments]  |
| About to join Palo Alto tac any advice ? Posted: 30 Jul 2021 06:11 PM PDT I am currently working at an ISP called GTT communications, some of you might have heard about it. Although it's a tier1 provider they have tonns of legacies which are basically ancient in nature. I got selected based on my knowledge in mpls,bgp and iptransport technologies. I have worked on fortigates and a little bit on juniper SRXs but I am clueless about Palo Alto as we don't use them anywhere. I want to be prepared for the challenges and avoid imposter syndrome. Experts your wisdom would be really helpful. [link] [comments]  |
| Layer 2 issue with new switch setup Posted: 30 Jul 2021 07:25 PM PDT Hello, I generally work with Fortigates and Fortiswitches, but recently got involved with a project that involved Brocade, Arista, and Mellanox switches. Topology link: https://ibb.co/sg8WY2j I am adding the middle 40Gbps Mellanox MLAG switches to carry traffic between the 40Gbps Aristas on either side. I thought by setting the links between the Aristas and Mellanox to only carry VLAN 40 as an access port and removing VLAN 40 from the trunk links going between Aristas and Brocades, that I would prevent any looping issues. I was apparently wrong. When we connect both Arista stacks to the Mellanox stack, the entire network goes down. I have modified the priority of the top center brocade stack to make it always be the STP root for the network, but that didn't make any difference. I think the Aristas and Mellanox are running MSTP and the Brocades are running PVSTP. Can you wonderful folks help point me in the right direction for troubleshooting this L2 issue using these different types of devices? I have spent going on 4 or 5 hours on this and haven't been able to make any progress. I can try to answer all questions to the best of my ability. The majority of my experience is with firewalls/VPNs/UTM etc, L2 and STP are not among my strengths. [link] [comments]  |
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