sharpis's IT blog: 2011-11

아래 링크의 내용을 그대로 긁어왔다.

[출처] http://jonnychoe.egloos.com/5537440

Bonding이란? (Teaming 이라고도 함)

여러 NIC 포트를 하나로 묶어 대역폭을 넓히고 장애에 대비한 방법입니다.

1. GATEDEV에 bond0 항목 추가

[root@test01 ~]# vi /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=no

HOSTNAME=test01

GATEDEV=bond0 <= 추가

2. ifcfg-bond0 생성 및 설정

[root@test01 network-scripts]# cp ifcfg-eth0 ifcfg-bond0

[root@test01 network-scripts]# vi ifcfg-bond0

# Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet

DEVICE=bond0

BOOTPROTO=none

-NBOOT=yes

USERCTL=no

TYPE=Ethernet

NETMASK=255.255.255.0

IPADDR=192.168.0.222

GATEWAY=192.168.0.1

3. ifcfg-ethx 수정

[root@test01 network-scripts]# vi ifcfg-eth0

# Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet

DEVICE=eth0

BOOTPROTO=none

-NBOOT=yes

USERCTL=no

TYPE=Ethernet

MASTER=bond0

SLAVE=yes

4. bond0 모듈 추가

[root@test01 network-scripts]# more /etc/modprobe.conf

alias eth0 bnx2

alias eth1 bnx2

alias eth2 bnx2

alias eth3 bnx2

alias scsi_hostadapter megaraid_sas

alias bond0 bonding <= 추가

options bonding mode=1 miimon=100 <= 추가

<Options>

Mode : 본딩방식을 정하는 옵션

0 - RR 방식 로드밸런스. 인터페이스의 라운드로빈. (대역폭 상승 + Failover)

1 - Active-Standby (NIC 의 Failover 만을 위한 모드)

한개는 Standby로 기존 것이 문제 생길경우 active로 전환

2 - XOR 방식 / 수신시에는 MAC 어드레스로 매핑, 송신시 1번 NIC 사용

3 - Broadcast 방식 / 모든 Slave NIC 으로 통신 failover 제공

4 - 802.3ad Dynamic Link aggregation

5 - 송신패킷만 로드밸런싱 / 동일 스위치에 물려있어야 함

6 - 송수신패킷 로드밸런싱 / 동일 스위치에 물려있어야 함

Miimon : 링크 감시설정 모드 / ms 단위, 디폴트값이 0(사용안함)

즉, 0으로 설정하면 Failover가 비활성화

5. bonding 모듈 적재

[root@test01 network-scripts]# modprobe bonding

6. Network 서비스 재시작 or Reboot

[root@test01 network-scripts]# service network restart

7. bonding 설정 확인

[root@test01 network-scripts]# cat /proc/net/bonding/bond0

Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)

Bonding Mode: fault-tolerance (active-backup)

Primary Slave: None

Currently Active Slave: eth0

MII Status: up

MII Polling Interval (ms): 100

Up Delay (ms): 0

Down Delay (ms): 0

Slave Interface: eth0

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 2

Permanent HW addr: 1x:xx:xx:xx:a8:49

Slave Interface: eth1

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 2

Permanent HW addr: 1x:xx:xx:xx:a8:4b

8. Network 정보 확인(Mac Address 가 모두 동일하게 나옴)

[root@test01 network-scripts]# ifconfig

bond0 Link encap:Ethernet HWaddr 1x:xx:xx:xx:A8:49

inet addr:192.168.0.222 Bcast:192.168.0.255 Mask:255.255.255.0

inet6 addr: fe80::16fe:b5ff:fed4:a849/64 Scope:Link

UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1

RX packets:16062 errors:0 dropped:0 overruns:0 frame:0

TX packets:1767 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:1259307 (1.2 MiB) TX bytes:235045 (229.5 KiB)

eth0 Link encap:Ethernet HWaddr 1x:xx:x:xx:A8:49

UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1

RX packets:9015 errors:0 dropped:0 overruns:0 frame:0

TX packets:1703 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:747490 (729.9 KiB) TX bytes:228009 (222.6 KiB)

Interrupt:82 Memory:d6000000-d6012800

eth1 Link encap:Ethernet HWaddr 1x:xx:xx:xx:A8:49

UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1

RX packets:7047 errors:0 dropped:0 overruns:0 frame:0

TX packets:64 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:511817 (499.8 KiB) TX bytes:7036 (6.8 KiB)

Interrupt:90 Memory:d8000000-d8012800

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

inet6 addr: ::1/128 Scope:Host

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:8 errors:0 dropped:0 overruns:0 frame:0

TX packets:8 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:560 (560.0 b) TX bytes:560 (560.0 b)

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