ii
Disabling global MAC address learning ············································································································ 22
Disabling MAC address learning on ports ········································································································· 22
Disabling MAC address learning on a VLAN···································································································· 22
Configuring the aging timer for dynamic MAC address entries
··············································································· 22
Configuring the MAC learning limit on ports ····································································································· 23
Displaying and maintaining MAC address tables ····································································································· 23
MAC address table configuration example ················································································································ 24
Network requirements··········································································································································· 24
Configuration procedure ······································································································································ 24
Configuring MAC Information ·································································································································· 26
Overview········································································································································································· 26
Introduction to MAC Information ························································································································· 26
How MAC Information works ······························································································································ 26
Enabling MAC Information globally ···························································································································· 26
Enabling MAC Information on an interface ················································································································ 26
Configuring MAC Information mode ··························································································································· 27
Configuring the interval for sending Syslog or trap messages ················································································· 27
Configuring the MAC Information queue length ········································································································ 27
MAC Information configuration example ···················································································································· 28
Network requirements··········································································································································· 28
Configuration procedure ······································································································································ 28
Configuring Ethernet link aggregation ····················································································································· 29
Overview········································································································································································· 29
Basic concepts ······················································································································································· 29
Aggregating links in static mode ························································································································· 32
Aggregating links in dynamic mode ··················································································································· 33
Load-sharing criteria for link aggregation groups ····························································································· 34
Configuration restrictions and guidelines ···················································································································· 35
Ethernet link aggregation configuration task list
········································································································· 35
Configuring an aggregation group ····························································································································· 35
Configuration guidelines ······································································································································ 35
Configuring a static aggregation group ············································································································· 36
Configuring a dynamic aggregation group ······································································································· 37
Configuring an aggregate interface ···························································································································· 38
Configuring the description of an aggregate interface····················································································· 38
Enabling link state traps for an aggregate interface ························································································· 38
Limiting the number of Selected ports for an aggregation group ···································································· 39
Shutting down an aggregate interface ··············································································································· 39
Restoring the default settings for an aggregate interface ················································································· 40
Configuring load sharing for link aggregation groups
······························································································ 40
Configuring load-sharing criteria for link aggregation groups ········································································ 40
Enabling local-first load sharing for link aggregation ······················································································· 41
Displaying and maintaining Ethernet link aggregation ····························································································· 42
Ethernet link aggregation configuration examples ····································································································· 43
Layer 2 static aggregation configuration example ···························································································· 43
Layer 2 dynamic aggregation configuration example ······················································································ 45
Configuring port isolation·········································································································································· 48
Assigning a port to the isolation group ······················································································································· 48
Displaying and maintaining the isolation group ········································································································ 48
Port isolation configuration example···························································································································· 48
Configuring spanning tree protocols ························································································································ 50
STP ··················································································································································································· 50