Linux bond or team multiple network interfaces (nic) into single interface
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- Step 1: Create a bond0 configuration file
- Step 2: Modify eth0 and eth1 config files
- Step 3: Load bond driver/module
- Step 4: Test configuration
| Linux bond or team multiple network interfaces (NIC) into single interface
Linux allows binding multiple network interfaces into a single channel/NIC using special kernel module called bonding. According to official bonding documentation, "The Linux bonding driver provides a method for aggregating multiple network interfaces into a single logical "bonded" interface. The behavior of the bonded interfaces depends upon the mode; generally speaking, modes provide either hot standby or load balancing services. Additionally, link integrity monitoring may be performed." Step #1: Create a bond0 configuration file Red Hat Linux stores network configuration in /etc/sysconfig/network-scripts/ directory. First, you need to create bond0 config file: # vi /etc/sysconfig/network-scripts/ifcfg-bond0 Append following lines to it: DEVICE=bond0
Replace above IP address with your actual IP address. Save file and exit to shell prompt. Step #2: Modify eth0 and eth1 config files: Open both configuration using vi text editor and make sure file read as follows for eth0 interface # vi /etc/sysconfig/network-scripts/ifcfg-eth0 Modify/append directive as follows: DEVICE=eth0
Open eth1 configuration file using vi text editor:# vi /etc/sysconfig/network-scripts/ifcfg-eth1 Make sure file read as follows for eth1 interface: DEVICE=eth1 USERCTL=no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none Save file and exit to shell prompt. Step # 3: Load bond driver/module Make sure bonding module is loaded when the channel-bonding interface (bond0) is brought up. You need to modify kernel modules configuration file: # vi /etc/modprobe.conf Append following two lines: alias bond0 bonding
Save file and exit to shell prompt. You can learn more about all bounding options in kernel source documentation file (click here to read file online). Step # 4: Test configuration First, load the bonding module: # modprobe bonding Restart networking service in order to bring up bond0 interface: Verify everything is working: # less /proc/net/bonding/bond0 Output:
Bonding Mode: load balancing (round-robin) MII Status: up MII Polling Interval (ms): 0 Up Delay (ms): 0 Down Delay (ms): 0
MII Status: up Link Failure Count: 0 Permanent HW addr: 00:0c:29:c6:be:59 Slave Interface: eth1 MII Status: up Link Failure Count: 0 Permanent HW addr: 00:0c:29:c6:be:63 List all interfaces:# ifconfig Output:
bond0 Link encap:Ethernet HWaddr 00:0C:29:C6:BE:59 inet addr:192.168.1.20 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:2804 errors:0 dropped:0 overruns:0 frame:0 TX packets:1879 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:250825 (244.9 KiB) TX bytes:244683 (238.9 KiB) eth0 Link encap:Ethernet HWaddr 00:0C:29:C6:BE:59 inet addr:192.168.1.20 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fec6:be59/64 Scope:Link UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:2809 errors:0 dropped:0 overruns:0 frame:0 TX packets:1390 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:251161 (245.2 KiB) TX bytes:180289 (176.0 KiB) Interrupt:11 Base address:0x1400
inet addr:192.168.1.20 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fec6:be59/64 Scope:Link UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:502 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:258 (258.0 b) TX bytes:66516 (64.9 KiB) Interrupt:10 Base address:0x1480 Directory: 2011 2011 -> Enterprise Network Management iPost: Implementing Continuous Risk Monitoring at the Department of State 2011 -> Voices of the Old Sea Norman Lewis 2011 -> Malevil Robert Merle 2011 -> The Elephant Keeper’s Children Peter Hoeg 2011 -> January 1: Ecstasy zZz January 2: King of Anything Sara Bareillis 2011 -> Tracks, Mixes, Masters, and More!: Analyzing Preservation Priorities for Multitrack Recordings 2011 -> Department of Electrical Engineering 2011 Annual Report 2011 -> Jv packet •Mars Colonization Affirmative •Mars Colonization Negative 2011 -> Asian Pacific Mathematical Olympiad(apmo) 2011 -> Registration Form (Rev. 8-86) omb no. 1024-0018 Download 16.01 Kb. Share with your friends:
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