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Configuring Ethernet link aggregation ··················································· 1
About Ethernet link aggregation ···································································································· 1
Ethernet link aggregation application scenario ··········································································· 1
Aggregate interface, aggregation group, and member port ··························································· 1
Operational key ··················································································································· 2
Configuration types ·············································································································· 2
Link aggregation modes ········································································································ 3
How static link aggregation works ··························································································· 3
Dynamic link aggregation ······································································································ 4
How dynamic link aggregation works ······················································································· 7
Edge aggregate interface ······································································································ 9
Load sharing modes for link aggregation groups ········································································ 9
S-MLAG ···························································································································· 9
Restrictions and guidelines: Mixed use of manual and automatic link aggregation configuration ················ 10
Ethernet link aggregation tasks at a glance ···················································································· 10
Configuring a manual link aggregation ·························································································· 11
Restrictions and guidelines for aggregation group configuration ·················································· 11
Configuring a Layer 2 aggregation group ················································································ 12
Configuring a Layer 3 aggregation group ················································································ 14
Configuring automatic link aggregation ························································································· 15
Configuring S-MLAG················································································································· 16
Configuring an aggregate interface ······························································································ 17
Configuring the description of an aggregate interface ································································ 17
Setting the MAC address for an aggregate interface ································································· 17
Configuring jumbo frame support ·························································································· 18
Setting the MTU for a Layer 3 aggregate interface ···································································· 18
Setting the expected bandwidth for an aggregate interface ························································· 19
Configuring an edge aggregate interface ················································································ 19
Configuring physical state change suppression on an aggregate interface ····································· 20
Shutting down an aggregate interface ···················································································· 20
Restoring the default settings for an aggregate interface ···························································· 21
Setting the minimum and maximum numbers of Selected ports for an aggregation group ························ 22
Disabling the default action of selecting a Selected port for dynamic aggregation groups that have not received
LACPDUs ······························································································································ 23
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Configuring a dynamic aggregation group to use port speed as the prioritized criterion for reference port
selection ································································································································ 23
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Specifying ignored VLANs for a Layer 2 aggregate interface ····························································· 24
Configuring load sharing for link aggregation groups ······································································· 25
Setting static load sharing modes for link aggregation groups ····················································· 25
Specifying ignored packet fields for default link-aggregation load sharing ······································ 25
Enabling local-first load sharing for link aggregation ·································································· 26
Configuring link aggregation load sharing algorithm and hash seed settings ··································· 27
Setting a hash offset to adjust the load balancing results on link aggregations ································ 27
Setting the load sharing mode for tunneled traffic ····································································· 28
Specifying link aggregation management VLANs and link aggregation management port ························ 28
Excluding a subnet from load sharing on aggregate links ·································································· 28
Enabling a Layer 2 aggregate interface to reflect incoming packets back ············································· 30
Enabling link-aggregation traffic redirection ··················································································· 30
About link-aggregation traffic redirection ················································································· 30
Restrictions and guidelines for link-aggregation traffic redirection ················································ 30
Enabling link-aggregation traffic redirection globally ·································································· 31
Enabling link-aggregation traffic redirection for an aggregation group ··········································· 31
Enabling BFD for an aggregation group ························································································ 31
Display and maintenance commands for Ethernet link aggregation ····················································· 32
Ethernet link aggregation configuration examples ··········································································· 33
Example: Configuring a Layer 2 static aggregation group ··························································· 33
Example: Configuring a Layer 2 dynamic aggregation group ······················································· 35
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