4 ms·

Frustratingly I couldn’t find a Mikrotik that would offer me a few SFPs, and a 2.5 or two. I wanted ideally just 3 SFPs - two WAN for LB / Failover and one up t

Frustratingly I couldn’t find a Mikrotik that would offer me a few SFPs, and a 2.5 or two. I wanted ideally just 3 SFPs - two WAN for LB / Failover and one up to switch. 2.5g WAN would do but would rather SFP for future use. UDM-SE it is for now.

bombcar 3mo ago
What exactly did you need and how did https://mikrotik.com/product/crs305_1g_4s_in https://mikrotik.com/product/crs305_1g_4s_in not do it? It says switch but it runs routerOS and can route at some speed - not 10G tho.
- ZPrimed 3mo ago
  crs305 will choke when you start asking it to do NAT. it's a switch. It should be able to hardware-route between VLANs but it's not made for "home router" duties.
- protocolture 3mo ago
  CRS is the switch product line and you would not believe how many professional network engineers do exactly as you have suggested and installed a CRS and asked why it locks up when routing.
  - walrus01 3mo ago
    I really would question any "professional" network engineer that can't tell the difference between a switch and a router... https://mikrotik.com/product/crs305_1g_4s_in https://mikrotik.com/product/crs305_1g_4s_in Each of the mikrotik switches even comes with a block diagram linked on its product page, showing for instance a single 1.3 Gbps between its L2 switch chip and its CPU. https://cdn.mikrotik.com/web-assets/product_files/CRS305-1G-4S_220955.png https://cdn.mikrotik.com/web-assets/product_files/CRS305-1G-...
    - protocolture 3mo ago
      >I really would question any "professional" network engineer that can't tell the difference between a switch and a router... Oh the stories I could tell you. I once had to work with a guy who didnt believe in dynamic routing. Which wouldn't have been too bad but he also didnt believe in route summarisation or any kind of planning. So the network was carved up into random unpredictable blocks. He sadly did very much believe in Mikrotik scripting, and so had scripts setup to disable/enable static routes based on very broad (often external) reachability criteria. Whenever googles DNS had an issue the whole network would start flapping scripts like nobodies business. The network was a large wisp with more than 600 pops and more than 10000 customers on its various services. That engineer had been gainfully employed by multiple ISPs over 20 years.
      - walrus01 2mo ago
        I've had supposedly credible professional network engineers send me their PRIVATE ssh keys for access to something more than once. As a response to "please send me your ssh key for access to $THING"
        protocolture 2mo ago
        Amazing.
    - Hikikomori 2mo ago
      I mean thats a swouter.
      - protocolture 2mo ago
        Scroll down to the ethernet test results. In lab optimal conditions it can route 1.2G It has 4 10G SFP+ ports. If you enable Queues AND Firewall Filters you will be down below 500M of throughput. Potentially less. If you ask this thing to do anything complex its going to shit itself. Now have a look at the block diagram. Note that the internal link between the 800MHz processor and the switch chip shows 1.3G. It would be an embarrassing cock up to deploy this as a router for a client. Even if you only need 1.3G of routing, there are better products.
  - gorkish 2mo ago
    CRS are L3 switches; they are supposed to route and run dynamic routing protocols and do ECMP and all the good stuff so long as you dont configure features like nat and firewall that require the cpu and cant be offloaded. The one thing that it frustratingly does not support that I wish it did is stateless bgp with ipv4 prefixes. It cant offload an ipv4 packet with an ipv6 next hop.
- bdavbdav 2mo ago
  Caps at at 1500 routing :(

bombcar 3mo ago

What exactly did you need and how did https://mikrotik.com/product/crs305_1g_4s_in https://mikrotik.com/product/crs305_1g_4s_in not do it? It says switch but it runs routerOS and can route at some speed - not 10G tho.

ZPrimed 3mo ago
crs305 will choke when you start asking it to do NAT. it's a switch. It should be able to hardware-route between VLANs but it's not made for "home router" duties.
protocolture 3mo ago
CRS is the switch product line and you would not believe how many professional network engineers do exactly as you have suggested and installed a CRS and asked why it locks up when routing.
- walrus01 3mo ago
  I really would question any "professional" network engineer that can't tell the difference between a switch and a router... https://mikrotik.com/product/crs305_1g_4s_in https://mikrotik.com/product/crs305_1g_4s_in Each of the mikrotik switches even comes with a block diagram linked on its product page, showing for instance a single 1.3 Gbps between its L2 switch chip and its CPU. https://cdn.mikrotik.com/web-assets/product_files/CRS305-1G-4S_220955.png https://cdn.mikrotik.com/web-assets/product_files/CRS305-1G-...
  - protocolture 3mo ago
    >I really would question any "professional" network engineer that can't tell the difference between a switch and a router... Oh the stories I could tell you. I once had to work with a guy who didnt believe in dynamic routing. Which wouldn't have been too bad but he also didnt believe in route summarisation or any kind of planning. So the network was carved up into random unpredictable blocks. He sadly did very much believe in Mikrotik scripting, and so had scripts setup to disable/enable static routes based on very broad (often external) reachability criteria. Whenever googles DNS had an issue the whole network would start flapping scripts like nobodies business. The network was a large wisp with more than 600 pops and more than 10000 customers on its various services. That engineer had been gainfully employed by multiple ISPs over 20 years.
    - walrus01 2mo ago
      I've had supposedly credible professional network engineers send me their PRIVATE ssh keys for access to something more than once. As a response to "please send me your ssh key for access to $THING"
      - protocolture 2mo ago
        Amazing.
  - Hikikomori 2mo ago
    I mean thats a swouter.
    - protocolture 2mo ago
      Scroll down to the ethernet test results. In lab optimal conditions it can route 1.2G It has 4 10G SFP+ ports. If you enable Queues AND Firewall Filters you will be down below 500M of throughput. Potentially less. If you ask this thing to do anything complex its going to shit itself. Now have a look at the block diagram. Note that the internal link between the 800MHz processor and the switch chip shows 1.3G. It would be an embarrassing cock up to deploy this as a router for a client. Even if you only need 1.3G of routing, there are better products.
- gorkish 2mo ago
  CRS are L3 switches; they are supposed to route and run dynamic routing protocols and do ECMP and all the good stuff so long as you dont configure features like nat and firewall that require the cpu and cant be offloaded. The one thing that it frustratingly does not support that I wish it did is stateless bgp with ipv4 prefixes. It cant offload an ipv4 packet with an ipv6 next hop.
bdavbdav 2mo ago
Caps at at 1500 routing :(