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lag
8 Topics
LAG with LACP GS752TXPv3 Windows Server
Hello, I have a problem on a GS752TXPv3 with setting up a LAG with LACP for a Windows server (2-port Intel NIC) with NIC-teaming. The Windows configuration ran stable for years on a GS752TXS without any change. Teaming with LACP dynamic. When I set up the LAG on the GS752TXPv3 and set it to LACP (source/destination MAC, incoming port), a broadcast storm starts when the server is plugged in and connectivity is restricted. I can reproduce the issue with W2012R2 and W2022, Intel and Broadcom server-NICs, switch firmwares 6.2.1.32 and 6.2.2.15. What am I doing wrong? Best Kai-UweProsafe S3300 52X POE stacked : possible to LAG with 2 XS712T
Hello, We have - four (4) stacked S3300 52X POE+ - supporting our desktops and printers - two (2) inner connected via LAG XS712T 10G switches, (since they can not be stacked) - supporting our Hyper-V Cluster and servers We would like to direct connect the two(2) sets of switches (new LAG 2 below) - more for failover / redundancy rather than throughput S3300 <---- new LAG 2 ------- XS712T <--+ S3300 | existing S3300 | LAG 1 S3300 <---- new LAG 2 ------- XS712T <--+ Question - can we create "LAG 2" between the S3300 stack and the 2 XS712T units ? Does the S3300 support LAG with 2 remote inner connected but not stacked Netgear switches ? Thanks in advance for any help or suggestions, bscazSolved2.2KViews0likes2CommentsM7300/M4300, and all netgear managed switches, apparently do not support LACP fallback mode
We have both M4300 and M7300 10GbE switches from Netgear in our environment. It does not appear that any netgear switches support LACP fallback mode. We already checked with support and tried the latest firmware. In other words, LACP is either enabled or disabled. There is no way to have it enabled, but to automatically fall back to disabled, when appropriate. This creates significant issues in our environment, and for many others, as any kind of re-imaging of a server using PXE will fail. There is no way to have PXE enable LACP, so as soon as the server reboots and goes into PXE, we lose connectivity. Even outside of PXE, if you take a typical ESXi server that has LACP turned on and then try to reinstall ESXi off a ISO image, you cannot configure LACP during the install, so the 10GbE ports will have no connectivity. Cisco, Arista and every other switch vendor we have seen has some kind of setting to turn on LACP fallback mode. On catalyst it is turned on by default. On nexus it is enabled with "lacp suspend-individual", etc., etc. It would be great to get some feedback from Netgear product management on this topic, as this greatly limits how we can adopt this switch in enterprise deployments. Thanks, FYI, I am waiting for a response before I post this on other forums and product reviews to make sure this is not a mistake or some kind of hidden feature that I could not find.Solved4KViews0likes11Comments
LAG setup JGS524Ev2 and GS752TS kills network
Hi, I am attempting to create a 2 Wire LAG between a JGS524Ev2 and a GS752TS I am using ports 1 and 2 on each switch. I have created a LAG group for ports 1 and 2 on each switch. The JGS524Ev2 is in one room whilst the the GS752TS is in another. I have ensured there is no extra connection between the two switches other than the 2 Wire LAG. The JGS524Ev2 has a laptop and a couple of NAS connected. The GS752TS has 2 DNS servers, an NTP server, a Wireless Access Point and a pfSense Router connected. Before I connect the LAG cables I check communication with a single wire in Port 5 on each of the 2 switches. Everything connects, talks and works fine. I disconnect the cable in Port 5 and connect the 2 wires of the LAG at which point the Wireless Access Point goes berserk, turning itself on and off, the pfSense Router ceases to function as do the DNS and the NTP servers. Yet the laptop still functions and I can call up the GUIs for the 2 switches, which tell me they are transmitting at 1000MB. I am obviously doing something wrong, but followed the NetGear guides that I could find. Can anyone give me some advice please, such as unplug all ports, establish the LAG then replug the devices etc. Or any other strategy that let's everything work. Sometimes the NetGear guides are a bit nebulous... Thanks and kind regards, jBSolved2.9KViews0likes3CommentsLink Aggregation with macOS
Hi, I've got two ethernet ports on my Mac mini and have bonded them together with the virtual interface. I've then plugged them both into my GS116Ev2. If I have LAG turned off the Ethernet bond from macOS connects just fine - if I turn LAG on, it disconnects and reports that my switch doesn't support link aggregation. What's going on here? Why are they working with LAG turned off, but not on? Are they even working with an aggregated connection with LAG turned off (is the Mac doing it instead?) should they work with it on?Solved
Trunking between 2 switch stacks (M4300-52G-PoE+ stack & M5300-52G-PoE+ stack)
I'm not a networking expert, so I wanted to toss this question out there to see if someone could point me in the right direction. I have (2) seperate network stacks in 2 seperate builtings connected by a SFP+ fiber trunk connection on ports 1/0/51 on both stacks. I'd like to connect a second SFP+ fiber/trunk connection between both stacks on port 3/0/51 to increase redundancy, but Im not sure exactly how to do it without creating a LOOP situation. I've never done any kind of LAG configuration, but everything I read tends to point me in that direction. I found a post discussing how to configure a LAG ( https://community.netgear.com/t5/Managed-Switches/sfp-trunking/m-p/1061504# )and the person posting referensed a document titled how_to_configure_lag.pdf, but that seemed to confuse me even more, since the browser GUI in that document looks nothing like the browser GUI on my M4300 and M5300. The article also mentioned needing to configure STP on each stack to prevent a LOOP, but I cant seem to find any documentation that can better educate me on how to do this. If anyone out there has any links or insight they can provide me when it comes to combining 2 SFP+ ports into a LAG and then trunking to another switch that also has 2 SFP+ ports combined into a LAG it would be greatly appreciated. Thanks, TedWSolved5.1KViews0likes1Comment
Optimal configuration on XS728T for RN626X with LACP bonding
My 10G ports on my RN626X are LACP bonded and plugged in to my XS728T and this appears to work fine without any special configuration on the switch, but am concerned that I am getting suboptimal throughput. How should I be configuring the ports on the XS728T to optimize throughput in this situation? The ReadyNAS ports are configured with a MTU of 9000 (aware that 10G can go larger, but 9000 is compatible with the other devices on the Switch, minimal reassembly, etc.). Advice?SolvedGS728TS Stack issues with interfaces and LAG's
Hi, We have 2 x GS728TS switches (running firmware 5.3.0.26) connected together in a stack with dual stacking cables. There are 4 servers connected to the stack via LAG's. Each LAG consists of 4 members and 2 VLAN's, 2 on each switch in the stack. Each server runs multiple VMs. Until recently everything was running fine. However last week we suddenly picked in an issue where some (not all) VM's on one host could not communicate with VM's on other hosts and vise-versa. After investigating, we discovered that the ARP table entries on the troublesome VM's did not contain the correct entries. Restarting the VM did not resolve this. so I restarted the stack and after a long time (15 min) the stack came up and most of the issues disappeared, but not entirely. So I checked the address table on the switch stack and found that this contains 'wrong' entries as well. It shows that some learnt mac addresses are on specific interfaces in place of on a LAG, and also sometimes these interfaces are not even part of the specified LAG. If I power down one of the switches and keep it powered down (either one) then everything starts working correctly again. Anyone have any ideas? Thanks ShaunSolved9.6KViews0likes7Comments