Protocol :
– Port Aggregation Protocol (PAgP), cisco proprietary.
– Link Aggregation Control Protocol (LACP) is an IEEE standard protocol, 802.3ad.
Negotiation Mode
|
Negotiation Packets Sent? |
Characteristics |
PAgP |
LACP |
|
|
On |
On |
No |
All ports channeling |
Auto |
Passive |
Yes |
Waits to channel until asked |
Desirable |
Active |
Yes |
Actively asks to form a channel |
EtherChannel Negotiation Protocols
– Etherchannel on mode does not send or receive PAgP or LACP packets. Therefore, both ends should be set to on mode before the channel can form.
– Etherchannel desirable (PAgP) or active (LACP) mode attempts to ask the far end to bring up a channel. Therefore, the other end must be set to either desirable or auto mode.
– Etherchannel auto (PagP) or passive (LACP) mode participates in the channel protocol, but only if the far end asks for participation. Therefore, two switches in the auto or passive mode will not form an etherchannel.
Configure port channel:
(config)#interface port-channel {number}
Configure load balance:
(config)#port-channel load-balance type
Configure with pagp:
(config-if)#interface {number|range interface – interface}
(config-if)#channel-protocol pagp
(config-if)#channel-group number mode {auto|desirable|on}
Configure with lacp:
(config-if)#interface {number|range interface – interface}
(config-if)#channel-protocol lacp
(config-if)#channel-group number mode {active|passive}
Verifying an Etherchannel:
SW#sh etherchannel summary
SW#sh etherchannel port
SW#sh etherchannel load-balance
SW#sh run interface number
SW#sh interfaces number etherchannel
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[susah nerjemahinnya, sambil belajar Bahasa Inggris 😀 ]