Command Line Interface
4-164
4
Command Usage
• The range is:
- Fast Ethernet interface – 1 to 100 Mbps
- Gigabit Ethernet interface – 8 to 1000 Mbps
• Resolution – The increment of change:
- Fast Ethernet interface – 1 Mbps
- Gigabit Ethernet interface – 8 Mbps
Example
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.
Console(config)#interface ethernet 1/1
Console(config-if)#rate-limit input 10
Console(config-if)#
Table 4-52. 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 4-151
channel-group Adds a port to a trunk IC (Port Channel) 4-165
Dynamic Configuration Command
lacp Configures LACP for the current interface IC (Ethernet) 4-166
lacp system-priority Configures a port's LACP system priority IC (Ethernet) 4-167
lacp admin-key Configures a port's administration key IC (Ethernet) 4-168
lacp admin-key Configures an port channel’s administration key IC (Port Channel) 4-169
lacp port-priority Configures a port's LACP port priority IC (Ethernet) 4-170
Trunk Status Display Command
show interfaces status
port-channel
Shows trunk information NE, PE 4-158
show lacp Shows LACP information PE 4-170
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