CentOS Network Basics: (5) set up multi-NIC binding IP

Action Example: Bind eth01/eth02 to an IP

(1) In modifying kernel module configuration file/etc/modprobe.conf, add the following content:

###### Bonding Start ##### #alias bond0 bondingoptions Bonding max_bonds = 1###### Bonding End ########

(2) Establish bonding network card file/ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-BOND0, configured as follows:

Device=bond0onboot=yesbootproto=staticipaddr=192.168.100.21netmask=255.255.255.0userctl=nobonding_opts= "mode=1 miimon=100 primary=eth01 "

*bonding_opts parameter reference:

parm:           max_bonds:max number of  bonded devices  (int) parm:           tx_queues :max number of transmit queues  (default = 16)   (int) parm:            num_grat_arp:number of gratuitous arp  packets to send on failover event  (int) parm:            num_unsol_na:Number of unsolicited IPv6 Neighbor  advertisements packets to send on failover event  (int) parm:            miimon:Link check interval in  milliseconds  (int) parm:           updelay:delay  before considering link up, in milliseconds  (int) parm:            downdelay:delay before considering link down, in milliseconds   (int) parm:           use_carrier:use netif_ carrier_ok  (VS MII IOCTLS)  in miimon; 0 for off, 1 for  on  (default)   (int) Parm:           mode:mode  of operation; 0 for balance-rr, 1 for active-backup, 2 for  balance-xor, 3 for broadcast, 4 for 802.3ad, 5 for  balance-tlb, 6 for balance-alb  (CHARP) parm:            primary:Primary network device to use  (CHARP) parm:            primary_reselect:reselect primary slave once it comes  up; 0 for always  (default), 1 for only if speed of  primary is better, 2 for only on active slave failure  (Charp ) parm:           lacp_rate:lacpdu tx rate  to request from 802.3ad partner; 0 for slow, 1 for  fast  (CHARP) parm:           ad_select:803.ad  aggregation selection logic; 0 for stable  (default), 1 for  bandwidth, 2 for count  (CHARP) parm:            xmit_hash_policy:balance-xor and 802.3ad hashing method; 0 for  layer 2  (default), 1 for layer 3+4, 2 for layer 2+3  (CHARP) parm:            arp_interval:arp interval in milliseconds  (int) Parm:           arp_ip_target:arp targets  in n.n.n.n form  (ARRAY OF CHARP) parm:            arp_validate:validate src/dst of ARP probes; 0 for  none  (default), 1 for active, 2 for backup, 3 for all  ( CHARP) parm:           fail_over_mac:for  Active-backup, do not set all slaves to the same mac; 0  for none  (default), 1 for active, 2 for follow  (CHARP) Parm:            all_slaves_active:keep all frames received on an  interfaceby setting active flag for all slaves; 0 for never   (default), 1 for always.  (int) parm:            resend_igmp:number of igmp membership reports to send on  link failure  (int)

(3) Modify the ETH01 network card configuration file:

Device=eth01master=bond0slave=yeshwaddr=54:22:22:00:7a:37:ceonboot=yes

To modify the NIC configuration file for eth02:

Device=eth02master=bond0slave=yeshwaddr=54:22:22:00:7a:37:ceonboot=yes

(4) Import bonding drive, restart Network Service after the effective

>modprobe-i Bonding Max_bonds=1>service Network restart

This article is from the "Margin with Wish" blog, please be sure to keep this source http://281816327.blog.51cto.com/907015/1615281

CentOS Network Basics: (5) set up multi-NIC binding IP