May 2020
M T W T F S S
« Mar    
 123
45678910
11121314151617
18192021222324
25262728293031

Categories

WordPress Quotes

History is a relentless master. It has no present, only the past rushing into the future. To try to hold fast is to be swept aside.
John F. Kennedy
May 2020
M T W T F S S
« Mar    
 123
45678910
11121314151617
18192021222324
25262728293031

Short Cuts

2012 SERVER (64)
2016 windows (9)
AIX (13)
Amazon (40)
Ansibile (19)
Apache (135)
Asterisk (2)
cassandra (2)
Centos (211)
Centos RHEL 7 (270)
centos8 (3)
chef (3)
cloud (2)
cluster (3)
Coherence (1)
DB2 (5)
DISK (25)
DNS (9)
Docker (30)
Eassy (11)
ELKS (1)
EXCHANGE (3)
Fedora (6)
ftp (5)
GIT (3)
GOD (2)
Grub (1)
Hacking (10)
Hadoop (6)
health (2)
horoscope (23)
Hyper-V (10)
IIS (15)
IPTABLES (15)
JAVA (7)
JBOSS (32)
jenkins (1)
Kubernetes (7)
Ldap (5)
Linux (188)
Linux Commands (166)
Load balancer (5)
mariadb (14)
Mongodb (4)
MQ Server (24)
MYSQL (84)
Nagios (5)
NaturalOil (13)
Nginx (35)
Ngix (1)
openldap (1)
Openstack (6)
Oracle (35)
Perl (3)
Postfix (19)
Postgresql (1)
PowerShell (2)
Python (3)
qmail (36)
Redis (12)
RHCE (28)
SCALEIO (1)
Security on Centos (29)
SFTP (1)
Shell (64)
Solaris (58)
Sql Server 2012 (4)
squid (3)
SSH (10)
SSL (14)
Storage (1)
swap (3)
TIPS on Linux (28)
tomcat (62)
Ubuntu (1)
Uncategorized (30)
Veritas (2)
vfabric (1)
VMware (28)
Weblogic (38)
Websphere (71)
Windows (19)
Windows Software (2)
wordpress (1)
ZIMBRA (17)

WP Cumulus Flash tag cloud by Roy Tanck requires Flash Player 9 or better.

Who's Online

0 visitors online now
0 guests, 0 bots, 0 members

Hit Counter provided by dental implants orange county

RHEL / CentOS 7 Network Teaming

Below is an example on how to configure network teaming on RHEL/CentOS 7. It is assumed that you have at least two interface cards.

Show Current Network Interfaces
[root@rhce-server ~]$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:0c:29:69:bf:87 brd ff:ff:ff:ff:ff:ff
3: eno33554984: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:0c:29:69:bf:91 brd ff:ff:ff:ff:ff:ff

The two devices I will be teaming are eno33554984 and eno16777736.

Create the Team Interface
[root@rhce-server ~]$ nmcli connection add type team con-name team0 ifname team0 config ‘{“runner”: {“name”: “activebackup”}}’

This will configure the interface for activebackup. Other runners include broadcast, roundrobin, loadbalance, and lacp.

Configure team0’s IP Address
[root@rhce-server ~]# nmcli connection modify team0 ipv4.addresses 192.168.1.22/24
[root@rhce-server ~]# nmcli connection modify team0 ipv4.method manual

You can also configure IPv6 address by setting the ipv6.addresses field.

Configure the Team Slaves
[root@rhce-server ~]# nmcli connection add type team-slave con-name team0-slave1 ifname eno33554984 master team0
Connection ‘team0-slave1’ (4167ea50-7d3a-4024-98e1-3058a4dcf0fa) successfully added.
[root@rhce-server ~]# nmcli connection add type team-slave con-name team0-slave2 ifname eno16777736 master team0
Connection ‘team0-slave2’ (d5ed65d1-16a7-4bc7-8c4d-78e17a1ed8b3) successfully added.

Check the Connection
[root@rhce-server ~]# teamdctl team0 state
setup:
runner: activebackup
ports:
eno16777736
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
eno33554984
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
runner:
active port: eno16777736

[root@rhce-server ~]# ping -I team0 192.168.1.1
PING 192.168.1.1 (192.168.1.1) from 192.168.1.24 team0: 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=1.38 ms

Test Failover
[root@rhce-server ~]# nmcli device disconnect eno16777736
[root@rhce-server ~]# teamdctl team0 state
setup:
runner: activebackup
ports:
eno33554984
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
runner:
active port: eno33554984

Leave a Reply

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

  

  

  

Blue Captcha Image
Refresh

*

Protected by WP Anti Spam