AIX 이더채널(이중화) 및 IP 구성

 

 

 

aix 이더채널 구성

 ===  Aix에서 etherchannel 구성.

etherchannel 구성을 위해서는 스위치에서 2개 포트를 하나로 묶어주는 작업을 진행해야함.

1.  etherchannel을 구성하기 위해서는 최소한 2개 이상의 NIC이 필요

# lsdev -Cc adapter

ent0      Available 0K-08 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)

ent1      Available 0K-09 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)

fcs0      Defined   0V-08 FC Adapter

…

2. 구성하기전에 ent0, ent1을 define 상태로 변경

# rmdev -l ent0

ent0 Defined

# rmdev -l ent1

ent1 Defined

3. ether channel 구성

# smitty etherchannel

                  EtherChannel / IEEE 802.3ad Link Aggregation

[Move cursor to desired item and press Enter.]

  List All EtherChannels / Link Aggregations

  Add An EtherChannel / Link Aggregation

  Change / Show Characteristics of an EtherChannel / Link Aggregation

  Remove An EtherChannel / Link Aggregation

  Force A Failover In An EtherChannel / Link Aggregation

4.  "Add An EtherChannel / Link Aggregation" 선택

                      Available Network Interfaces                      

   [Move cursor to desired item and press Esc+7.]                            

   [ONE OR MORE items can be selected. ]             

   [Press Enter AFTER making all selections.]                                

     ent0                                                                  

     ent1                                                                  

5. ent0를 선택하고,

                     Add An EtherChannel / Link Aggregation

[Type or select values in entry fields.]

[Press Enter AFTER making all desired changes.]

                                                        [Entry Fields]

  EtherChannel / Link Aggregation Adapters            ent0                   +

  Enable Alternate Address                            no                     +

  Alternate Address                                  []                      +

  Enable Gigabit Ethernet Jumbo Frames                no                     +

  Mode                                                8023ad                 +

  IEEE 802.3ad Interval                               long                   +

  Hash Mode                                           default                +

  Backup Adapter                                      ent1                   +

       Automatically Recover to Main Channel          yes                    +

       Perform Lossless Failover After Ping Failure   yes                    +

  Internet Address to Ping                           []

  Number of Retries                                  []                      +#

  Retry Timeout (sec)                                []                      +#

6. backup adapter에 ent1을 선택한 후,

7. 5번째 Mode를 선택

                                    Mode                                  

                                                                          

  [Move cursor to desired item and press Enter. ]                          

                                                                           

     standard                                                              

     round_robin                                                       

     8023ad   

 

standard : 어떤 packet이 어떤 interface를 통해 나갈지를 hash방식으로 결정.

round_robin: packet이 순서대로 interface를 통해서 나감. standard에 비해 load balance가 잘 됨.

802.3ad: loard balance 기능은 없고, active-standby 방식. 하나의 interface가 멈추면 대기하던 다른 interface가 작동.

 

8. "8023ad" A/S 구성 선택

9. 8023ad를 선택하고 실행하면 새 인터페이스 ent2가 생성

10. lsdev 커맨드로 ent2 확인.

# lsdev -Cc adapter

ent0      Available 0K-08 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)

ent1      Available 0K-09 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)

ent2      Available       EtherChannel / IEEE 802.3ad Link Aggregation

11. ent2에 ip주소를 할당

# smitty mktcpip

변경할 interface 선택 (en2)

메뉴 하단에 "START TCP/IP daemons NOW" 항목에서 ESC+4로 list 해서 "yes" 선택

그래야 바로 적용됨.

[엔터]로 적용

12. ifconfig 확인

# ifconfig -a

en2: flags=5e080862,c0<BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),PSEG,LARGESEND,CHAIN>

        inet 192.168.0.200 netmask 0xffffff00 broadcast 192.168.0.255

         tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0

13. etherchannel 상태 확인

# entstat -d en2 | grep -i “number of adapters”

Number of adapters: 2

# entstat -d en2 | grep -i link

Device Type: IEEE 802.3ad Link Aggregation

Statistics for every adapter in the IEEE 802.3ad Link Aggregation:

IEEE 802.3ad Link Aggregation Statistics:

Link Status : Up

Link Status : Up

# entstat -d en2 | grep -i active

Active channel: backup adapter
 LACP activity: Active

 LACP activity: Active