24-Port Fast Ethernet Switch Management Guide

L INK A GGREGATION C OMMANDS
4-188
Link Aggregation Commands
Ports can be statically grouped into an aggregate link (i.e., trunk) to increase
the bandwidth of a network connection or to ensure fault recovery. Or you
can use the Link Aggregation Control Protocol (LACP) to automatically
negotiate a trunk link between this switch and another network device. For
static trunks, the switches have to comply with the Cisco EtherChannel
standard. For dynamic trunks, the switches have to comply with LACP. This
switch supports up to six trunks. For example, a trunk consisting of two
1000 Mbps ports can support an aggregate bandwidth of 4 Gbps when
operating at full duplex.
Table 4-50 Link Aggregation Commands
Command Function Mode Page
Manual Configuration Commands
interface port-channel Configures a trunk and enters
interface configuration mode for the
trunk
GC 4-171
channel-group Adds a port to a trunk IC (Ethernet) 4-190
Dynamic Configuration Command
lacp Configures LACP for the current
interface
IC (Ethernet) 4-190
lacp system-priority Configures a port's LACP system
priority
IC (Ethernet) 4-192
lacp admin-key Configures a port's administration
key
IC (Ethernet) 4-193
lacp admin-key Configures an port channel’s
administration key
IC (Port
Channel)
4-194
lacp port-priority Configures a port's LACP port
priority
IC (Ethernet) 4-195
Trunk Status Display Commands
show interfaces status
port-channel
Shows trunk information NE, PE 4-179
show lacp Shows LACP information PE 4-196