Description
This test case verifies that onboard network interfaces are named emN.
Setup
Make sure your system is booted into Rawhide kernel.
Howto Test
1. Identify the onboard network interfaces in your system.
[root@fedora-14-r710 ~]# lspci | grep -i ether 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) 01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) 02:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) 06:00.0 Ethernet controller: Intel Corporation 82572EI Gigabit Ethernet Controller (Copper) (rev 06) 07:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) 07:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
On Dell PowerEdge systems SMBIOS type 41 record provides details on onboard devices.
[root@fedora-14-r710 ~]# dmidecode -t 41
# dmidecode 2.10
SMBIOS 2.6 present.
Handle 0x2900, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Embedded NIC 1
Type: Ethernet
Status: Enabled
Type Instance: 1
Bus Address: 0000:01:00.0
Handle 0x2901, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Embedded NIC 2
Type: Ethernet
Status: Enabled
Type Instance: 2
Bus Address: 0000:01:00.1
Handle 0x2902, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Embedded NIC 3
Type: Ethernet
Status: Enabled
Type Instance: 3
Bus Address: 0000:02:00.0
Handle 0x2903, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Embedded NIC 4
Type: Ethernet
Status: Enabled
Type Instance: 4
Bus Address: 0000:02:00.1
The output from this command tells you that there are 4 onboard network interfaces in this system. Compare the ' Bus Address' field to the lspci output to determine the network adapters.
2. Run the command 'ls /sys/class/net' and make sure that onboard network adapters identified in step 1 are named em1, em2, em3 and em4.
[root@fedora-14-r710 ~]# ls /sys/class/net/ em1 em2 em3 em4 lo pci3#1 pci3#1_0 pci3#1_1 pci3#2 pci3#2_0 pci3#2_1 pci4#1
3. Verify that the first onboard network interface has an index 1 and label "Embedded NIC 1"
[root@fedora-14-r710 ~]# cat /sys/class/net/em1/device/index 1 [root@fedora-14-r710 ~]# cat /sys/class/net/em1/device/label Embedded NIC 1 [root@fedora-14-r710 ~]# cat /sys/class/net/em2/device/index 2 [root@fedora-14-r710 ~]# cat /sys/class/net/em2/device/label Embedded NIC 2
4. Physically identify the interface by issuing the command 'ethtool -p em1'. This makes the onboard network interaface blink.
[root@fedora-14-r710 ~]# ethtool -p em1
Expected Results
The onboard network interface for which the Server Chassis Label is Gb1 is named em1, Gb2 is named em2 and so on.