[root@rac1 ~]# ifconfig -a
enp3s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.101 netmask 255.255.255.0 broadcast 192.168.100.255
inet6 fe80::ec4:7aff:feac:3cc8 prefixlen 64 scopeid 0x20<link>
ether 0c:c4:7a:ac:3c:c8 txqueuelen 1000 (Ethernet)
RX packets 1708659 bytes 1055516580 (1006.6 MiB)
RX errors 0 dropped 1856 overruns 0 frame 0
TX packets 783834 bytes 183429513 (174.9 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0xc7620000-c7640000
enp3s0f0:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.107 netmask 255.255.255.0 broadcast 192.168.100.255
ether 0c:c4:7a:ac:3c:c8 txqueuelen 1000 (Ethernet)
device memory 0xc7620000-c7640000
enp3s0f1: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 0c:c4:7a:ac:3c:c9 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0xc7600000-c7620000
ib0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2044
inet 10.10.10.101 netmask 255.255.255.0 broadcast 10.10.10.255
inet6 fe80::7efe:9003:91:7ed1 prefixlen 64 scopeid 0x20<link>
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).--------->注意此处!
infiniband 80:00:00:48:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00 txqueuelen 256 (InfiniBand)
RX packets 152742 bytes 16275415 (15.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 197013 bytes 15793636 (15.0 MiB)
TX errors 0 dropped 11 overruns 0 carrier 0 collisions 0
ib1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2044
inet 1.1.1.101 netmask 255.255.255.0 broadcast 1.1.1.255
inet6 fe80::7efe:9003:91:7ed2 prefixlen 64 scopeid 0x20<link>
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).--------->注意此处!
infiniband 80:00:00:49:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00 txqueuelen 256 (InfiniBand)
RX packets 28753040 bytes 27216942068 (25.3 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 25737856 bytes 21898064798 (20.3 GiB)
TX errors 0 dropped 13 overruns 0 carrier 0 collisions 0
ib1:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2044
inet 169.254.85.174 netmask 255.255.0.0 broadcast 169.254.255.255
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).--------->注意此处!
infiniband 80:00:00:49:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00 txqueuelen 256 (InfiniBand)
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 3296963 bytes 3310546982 (3.0 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3296963 bytes 3310546982 (3.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@rac1 ~]#
后来查了查mellanox官网的文章，原来需要用ip addr show命令来显示HCA的IP地址,如下:
[root@rac1 ~]# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp3s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 0c:c4:7a:ac:3c:c8 brd ff:ff:ff:ff:ff:ff
inet 192.168.100.101/24 brd 192.168.100.255 scope global enp3s0f0
valid_lft forever preferred_lft forever
inet 192.168.100.107/24 brd 192.168.100.255 scope global secondary enp3s0f0:1
valid_lft forever preferred_lft forever
inet6 fe80::ec4:7aff:feac:3cc8/64 scope link
valid_lft forever preferred_lft forever
3: enp3s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 0c:c4:7a:ac:3c:c9 brd ff:ff:ff:ff:ff:ff
4: ib0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast state UP qlen 256
link/infiniband 80:00:00:48:fe:80:00:00:00:00:00:00:7c:fe:90:03:00:91:7e:d1 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
inet 10.10.10.101/24 brd 10.10.10.255 scope global ib0
valid_lft forever preferred_lft forever
inet6 fe80::7efe:9003:91:7ed1/64 scope link
valid_lft forever preferred_lft forever
5: ib1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast state UP qlen 256
link/infiniband 80:00:00:49:fe:80:00:00:00:00:00:00:7c:fe:90:03:00:91:7e:d2 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
inet 1.1.1.101/24 brd 1.1.1.255 scope global ib1
valid_lft forever preferred_lft forever
inet 169.254.85.174/16 brd 169.254.255.255 scope global ib1:1
valid_lft forever preferred_lft forever
inet6 fe80::7efe:9003:91:7ed2/64 scope link
valid_lft forever preferred_lft forever
[root@rac1 ~]#
原因是:
ifconfig is obsolete according to Red Hat, also it shows the followng message when running it when IPoIB interfaces exists:
Ifconfig uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes.
Because Infiniband address has 20 bytes, only the first 8 bytes are displayed correctly.
Ifconfig is obsolete! For replacement check ip.