![]() TraceRouteOK is a very useful application that was designed to help administrators that want to trace the path of the data that is transferred throughout the local network or the packets that are sent over the Internet. This also fixed my issue with get the Proxmox repositories to work.TraceRouteOK: Handy program for analyzing network connections in order to provide detailed info about the data route. I am not sure why the mtu values are the same on the servers and switch it doesn't work. so removed the mtu setting completely to leave at default value: worked remembered vlan's require some headroom so set mtu on switch to mtu 1525: worked ![]() ![]() looked as ip address on serverA/B to get mtu value, set mtu on switch to 1500 to match: failed connect serverA and serverB to a port on a single switch with a mtu 9000 (and all other switches turned off): worked connect serverA and serverB to a dumb hub and ssh between: worked So I removed all mtu configurations from the switches and all is good now. As a ping doesn't fill the 1500 limit it didn't show the issue. When I increased to mtu 1525 on the switches everything worked. The mtu's (1500) were matched between the Dell switches and Proxmox servers, but didn't work. They have been ignored, or old ones used instead. Get:11 bullseye-updates/main Translation-en Ĭonnection failed Get:10 bullseye-updates/main amd64 Packages Get:4 bullseye-security/main Translation-en Get:3 bullseye-security/main amd64 Packages
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