{"record":{"id":"c4845fac75f1f757","repo":"netbirdio/netbird","slug":"link-set-mtu-w","errorCode":null,"errorMessage":"link set mtu: %w","messagePattern":"link set mtu: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"client/iface/device/wg_link_linux.go","lineNumber":82,"sourceCode":"\t\t}\n\t}\n\n\tlog.Debugf(\"adding device: %s\", name)\n\terr = netlink.LinkAdd(l)\n\tif os.IsExist(err) {\n\t\tlog.Infof(\"interface %s already exists. Will reuse.\", name)\n\t} else if err != nil {\n\t\treturn fmt.Errorf(\"link add: %w\", err)\n\t}\n\n\treturn nil\n}\n\nfunc (l *wgLink) setMTU(mtu int) error {\n\tif err := netlink.LinkSetMTU(l, mtu); err != nil {\n\t\tlog.Errorf(\"error setting MTU on interface: %s\", l.attrs.Name)\n\n\t\treturn fmt.Errorf(\"link set mtu: %w\", err)\n\t}\n\n\treturn nil\n}\n\nfunc (l *wgLink) up() error {\n\tif err := netlink.LinkSetUp(l); err != nil {\n\t\tlog.Errorf(\"error bringing up interface: %s\", l.attrs.Name)\n\t\treturn fmt.Errorf(\"link setup: %w\", err)\n\t}\n\n\treturn nil\n}\n\nfunc (l *wgLink) assignAddr(address *wgaddr.Address) error {\n\t//delete existing addresses\n\tlist, err := netlink.AddrList(l, 0)\n\tif err != nil {","sourceCodeStart":64,"sourceCodeEnd":100,"githubUrl":"https://github.com/netbirdio/netbird/blob/93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c/client/iface/device/wg_link_linux.go#L64-L100","documentation":"Error \"link set mtu: %w\" thrown in netbirdio/netbird.","triggerScenarios":"Thrown at client/iface/device/wg_link_linux.go:82 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c","analyzedAt":"2026-08-16T03:09:19.136Z","schemaVersion":2},"datasetVersion":"2026-08-16T08:17:34.114Z"}