November 28, 20241 yr I've just tried setting up Unrad for the first time and it doesn't seem to set an ip address. I'm trying to use 10GB Ethernet X520-DA2 Chipset to connect. tower-diagnostics-20180823-1053.zip
November 29, 20241 yr Community Expert you may need to install the melnox driver plugin. since this is a 10 GB network you may need to edit MTU setting and set jumbo frames for 10 GB mtu is 9000
November 29, 20241 yr Community Expert 48 minutes ago, bmartino1 said: you may need to install the melnox driver plugin. since this is a 10 GB network you may need to edit MTU setting and set jumbo frames for 10 GB mtu is 9000 NO! the X520 is an INTEL card, the mellanox driver would not help a bit! So look for an INTEL driver, but it should be there already. Most likely you have used a wrong slot or BIOS setting for the card. It NEEDS 4 or 8 Lanes (some other can run with less, just slower), it wont work with less. So, read your MoBo's manual CAREFULLY (the "*" sections often reveal things like "if you activate SATA 5-8 Slot #3 will be disabled") and check settings And the mtu setting to 9000 is just a rumour too, it will do nothing or even lead to trouble. LEAVE IT ALONE!
November 30, 20241 yr Community Expert On 11/28/2024 at 11:54 PM, MAM59 said: NO! the X520 is an INTEL card, the mellanox driver would not help a bit! So look for an INTEL driver, but it should be there already. Most likely you have used a wrong slot or BIOS setting for the card. It NEEDS 4 or 8 Lanes (some other can run with less, just slower), it wont work with less. So, read your MoBo's manual CAREFULLY (the "*" sections often reveal things like "if you activate SATA 5-8 Slot #3 will be disabled") and check settings And the mtu setting to 9000 is just a rumour too, it will do nothing or even lead to trouble. LEAVE IT ALONE! most 10 G issues come form missing the melnox driver... Even if its not melnox ich777 added other libs that are sometimes needed that i have found in testing. (I have not isolated other needed componetns but it driver related... ?yes 9000 mtu if jumbo frames otherwsie the link may not give you a 10G connection. nor form a connection *depends on alot of factors, typ of sfp / nic auto settings hard coded / network swtich - device it connected too... This was quick info: 1500 = 1 GB (no jumboframes) 9000 = 10 GB (jumbo frames) layer2/layer3 settings from hardware for netwroking... I have found that unraids doesn't auto negotiate well and the abilty to set 1500 was a good stagble as other networks may auto set 1400 / 1450 mtu via nic auto netogaions. TO THE OSI MODEL! Ethernet is fundamentally a Layer 2 protocol. 10 Gigabit Ethernet uses the IEEE 802.3 Ethernet Media Access Control (MAC) protocol ... TO the IEEE 802 stuff... https://www.ieee802.org/3/10GBT/public/nov03/10GBASE-T_tutorial.pdf ... @MAM59every network is different yes, but its not wrong... Literal went to school on this stuff and have 10 years of ISP networking backgrounds...
November 30, 20241 yr Community Expert 2 hours ago, bmartino1 said: Literal went to school on this stuff and have 10 years of ISP networking backgrounds... so 30yrs less than me 🙂youngster 😁 But within the last 10yrs you may have had a chance to learn that jumbo frames are outdated and obsolete now. The have nothing to do with 10G LAN, they were invented when 1G came up with still dumb NICs. CPUs were hogged by the amount and speed of the incoming packets. Jumbo Frames helped because larger frames meant less frames therefor less computations were needed (CRC checks and so on). Freeing the CPUs a bit. But then NICs grew up and were able to handle the checks and computations now by themselfs (offloading). CPU is not involved at all anymore, it is just informed if a readily checked packet is store savely into a buffer. So the amount of packets does not play any role anymore, even the cheapest NIC from Realtek can do these things today. Jumbo Frames give no benefit, maybe a small percentage in artificial benchmarks like iperf, but not in real life. On the other hand, they only will work at all if ALL members of the Network does know about them and can handle them. Else you will always have "hickups" because a Jumbo Frame could not be stored, is rejected and then MTU is lowered and everything resend. This will make things even slower than with the standard 1500 (The lower MTUs you mention do not appear in LANs at all (unless you force them) they are only used by ISPs that use tunneling protocols and need some bytes to store the tunnel info. For instance I use 1280 for my 4to6 tunnel here)
November 30, 20241 yr Community Expert some great information there. Thank You. Cool, learning new things every day. Yes, I force MTU setting on my network. 1400/1450 was a past example from a mediacom modem and belkin router that was all kinds of weird. alot of my networking is more in programming ISP cisco swiches and foundry/brocade switches for volo broadband. This was back in the UC2B days with the fiber grant... I've moved on from networking in that role 5 ish years ago now. Per Jorge comment, outside a physical connection. Double check SFP+ module compatibility for the nic and the switch your connection is to.
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