How to Configure Etherchannel in IBM AIX
EtherChannel and IEEE 802.3ad Link Aggregation are network port
aggregation technologies that allow several Ethernet adapters to be
aggregated together to form a single pseudo Ethernet device. For
example, ent0 and ent1 can be aggregated into an EtherChannel adapter
called ent2; interface ent2 would then be configured with an IP address.
The system considers these aggregated adapters as one adapter. The
switch side should be configured accordingly.
Considerations
> Switch side configuration should be done prior to the the AIX side etherchannel configuration
> All the adapters should have same speed and duplex settings
> The interfaces, which are going to be part of etherchannel should be in down and detached state.(smitty chinet)
# ifconfig en0 down detach
# ifconfig en1 down detach
Creating new Etherchannel adapter with smitty
EtherChannel / IEEE 802.3ad Link Aggregation
Move cursor to desired item and press Enter.
List All EtherChannels / Link Aggregations
Add An EtherChannel / Link Aggregation <<<<< SELECT
Change / Show Characteristics of an EtherChannel / Link Aggregation
Remove An EtherChannel / Link Aggregation
Force A Failover In An EtherChannel / Link Aggregation
F1=Help F2=Refresh F3=Cancel F4=List
F5=Reset F6=Command F7=Edit F8=Image
F9=Shell F10=Exit Enter=Do
Find the Etherchannel Adapter
Setting IP Address for the newly created Etherchannel adapter
Show the Etherchannel Adapter properties
Considerations
> Switch side configuration should be done prior to the the AIX side etherchannel configuration
> All the adapters should have same speed and duplex settings
> The interfaces, which are going to be part of etherchannel should be in down and detached state.(smitty chinet)
# ifconfig en0 down detach
# ifconfig en1 down detach
Creating new Etherchannel adapter with smitty
# 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 <<<<< SELECT
Change / Show Characteristics of an EtherChannel / Link Aggregation
Remove An EtherChannel / Link Aggregation
Force A Failover In An EtherChannel / Link Aggregation
F1=Help F2=Refresh F3=Cancel F4=List
F5=Reset F6=Command F7=Edit F8=Image
F9=Shell F10=Exit Enter=Do
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,ent1 +
Enable Alternate Address no +
Alternate Address [] +
Enable Gigabit Ethernet Jumbo Frames no +
Mode standard +
Hash Mode default +
Backup Adapter +
Automatically Recover to Main Channel yes +
Perform Lossless Failover After Ping Failure yes +
Internet Address to Ping []
Number of Retries [] +#
Retry Timeout (sec) [] +#
F1=Help F2=Refresh F3=Cancel F4=List
F5=Reset F6=Command F7=Edit F8=Image
F9=Shell F10=Exit Enter=Do
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
EtherChannel / Link Aggregation Adapters ent0,ent1 +
Enable Alternate Address no +
Alternate Address [] +
Enable Gigabit Ethernet Jumbo Frames no +
Mode standard +
Hash Mode default +
Backup Adapter +
Automatically Recover to Main Channel yes +
Perform Lossless Failover After Ping Failure yes +
Internet Address to Ping []
Number of Retries [] +#
Retry Timeout (sec) [] +#
F1=Help F2=Refresh F3=Cancel F4=List
F5=Reset F6=Command F7=Edit F8=Image
F9=Shell F10=Exit Enter=Do
Find the Etherchannel Adapter
# lsdev -Cc adapter -t ibm_ech
ent2 Available EtherChannel / IEEE 802.3ad Link Aggregation
Setting IP Address for the newly created Etherchannel adapter
# smitty chinet
lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
x Available Network Interfaces x
x x
x Move cursor to desired item and press Enter. x
x x
x en0 1L-08 Standard Ethernet Network Interface x
x en1 1j-08 Standard Ethernet Network Interface x
x en2 Standard Ethernet Network Interface <<<<< SELECT x
x et0 1L-08 IEEE 802.3 Ethernet Network Interface x
x et1 1j-08 IEEE 802.3 Ethernet Network Interface x
x et2 IEEE 802.3 Ethernet Network Interface x
x x
x F1=Help F2=Refresh F3=Cancel x
x Esc+8=Image Esc+0=Exit Enter=Do x
x /=Find n=Find Next x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
x Available Network Interfaces x
x x
x Move cursor to desired item and press Enter. x
x x
x en0 1L-08 Standard Ethernet Network Interface x
x en1 1j-08 Standard Ethernet Network Interface x
x en2 Standard Ethernet Network Interface <<<<< SELECT x
x et0 1L-08 IEEE 802.3 Ethernet Network Interface x
x et1 1j-08 IEEE 802.3 Ethernet Network Interface x
x et2 IEEE 802.3 Ethernet Network Interface x
x x
x F1=Help F2=Refresh F3=Cancel x
x Esc+8=Image Esc+0=Exit Enter=Do x
x /=Find n=Find Next x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
Change / Show a Standard Ethernet Interface
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
Network Interface Name en2
INTERNET ADDRESS (dotted decimal) [192.168.1.100]
Network MASK (hexadecimal or dotted decimal) [255.255.255.0]
Current STATE up +
Use Address Resolution Protocol (ARP)? yes +
BROADCAST ADDRESS (dotted decimal) []
Interface Specific Network Options
('NULL' will unset the option)
rfc1323 []
tcp_mssdflt []
tcp_nodelay []
tcp_recvspace []
tcp_sendspace []
Apply change to DATABASE only no +
F1=Help F2=Refresh F3=Cancel F4=List
Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image
Esc+9=Shell Esc+0=Exit Enter=Do
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
Network Interface Name en2
INTERNET ADDRESS (dotted decimal) [192.168.1.100]
Network MASK (hexadecimal or dotted decimal) [255.255.255.0]
Current STATE up +
Use Address Resolution Protocol (ARP)? yes +
BROADCAST ADDRESS (dotted decimal) []
Interface Specific Network Options
('NULL' will unset the option)
rfc1323 []
tcp_mssdflt []
tcp_nodelay []
tcp_recvspace []
tcp_sendspace []
Apply change to DATABASE only no +
F1=Help F2=Refresh F3=Cancel F4=List
Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image
Esc+9=Shell Esc+0=Exit Enter=Do
Show the Etherchannel Adapter properties
# ifconfig -a
en2:
flags=5e080863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),PSEG,LARGESEND,CHAIN>
inet 192.168.1.100 netmask 0xffffff00 broadcast 192.168.1.255
tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0
lo0: flags=e08084b<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT>
inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255
inet6 ::1/0
tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1
inet 192.168.1.100 netmask 0xffffff00 broadcast 192.168.1.255
tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0
lo0: flags=e08084b<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT>
inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255
inet6 ::1/0
tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1
# lsattr -El ent2
adapter_names ent0,ent1 EtherChannel Adapters True
alt_addr 0x000000000000 Alternate EtherChannel Address True
auto_recovery yes Enable automatic recovery after failover True
backup_adapter NONE Adapter used when whole channel fails True
hash_mode default Determines how outgoing adapter is chosen True
mode standard EtherChannel mode of operation True
netaddr 0 Address to ping True
noloss_failover yes Enable lossless failover after ping failure True
num_retries 3 Times to retry ping before failing True
retry_time 1 Wait time (in seconds) between pings True
use_alt_addr no Enable Alternate EtherChannel Address True
use_jumbo_frame no Enable Gigabit Ethernet Jumbo Frames True
alt_addr 0x000000000000 Alternate EtherChannel Address True
auto_recovery yes Enable automatic recovery after failover True
backup_adapter NONE Adapter used when whole channel fails True
hash_mode default Determines how outgoing adapter is chosen True
mode standard EtherChannel mode of operation True
netaddr 0 Address to ping True
noloss_failover yes Enable lossless failover after ping failure True
num_retries 3 Times to retry ping before failing True
retry_time 1 Wait time (in seconds) between pings True
use_alt_addr no Enable Alternate EtherChannel Address True
use_jumbo_frame no Enable Gigabit Ethernet Jumbo Frames True
* Source Article from : Internet
