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Please can you help me to understand what could be wrong based on what I have captured in the logs:
I have run cat /var/log/syslog | grep -i warn, and I got the following output NetworkManager: <warn> Activation (eth3) failed.
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Discussion started by: fretagi
2. Red Hat
Dear All ,
While taking backups in one Linux Server , we find one alert came with regard to Network Interface Card.
Pl find the below alert.
Network Interface Card performance for NIC:eth1 has exceeded Major threshold.
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Can somebody explain that whats the meaning of different interfaces naming scheme, Like ' hme, qfe, e1000g0, ce, eri, bge' ?
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Can we use some command from unix to find the available network interface? I did tried
Its listing following, however how can I decide the which vender card is attached
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NETWORK_NAMESPACES(7) Linux Programmer's Manual NETWORK_NAMESPACES(7)
network_namespaces - overview of Linux network namespaces
Network namespaces provide isolation of the system resources associated with networking: network devices, IPv4 and IPv6 protocol stacks, IP
routing tables, firewall rules, the /proc/net directory (which is a symbolic link to /proc/PID/net), the /sys/class/net directory, various
files under /proc/sys/net, port numbers (sockets), and so on.
A physical network device can live in exactly one network namespace. When a network namespace is freed (i.e., when the last process in the
namespace terminates), its physical network devices are moved back to the initial network namespace (not to the parent of the process).
A virtual network (veth(4)) device pair provides a pipe-like abstraction that can be used to create tunnels between network namespaces, and
can be used to create a bridge to a physical network device in another namespace. When a namespace is freed, the veth(4) devices that it
contains are destroyed.
Use of network namespaces requires a kernel that is configured with the CONFIG_NET_NS option.
nsenter(1), unshare(1), clone(2), veth(4), proc(5), sysfs(5), namespaces(7), user_namespaces(7), brctl(8), ip(8), ip-address(8), ip-
link(8), ip-netns(8), iptables(8), ovs-vsctl(8)
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2018-02-02 NETWORK_NAMESPACES(7)