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Chapter 4 Command-Line Reference 4-167
aggregated links. For example, an aggregated link consisting of two 1000 Mbit/sec
ports can support an aggregate bandwidth of 4 Gbit/sec when operating at full
duplex.
Guidelines for Creating Aggregated Links
■ Finish configuring aggregated links before you connect the corresponding
network cables between switches to avoid creating a loop.
■ An aggregated link can contain up to four up-link ports or up to two down-link
ports.
■ The ports at both ends of a connection must be configured as aggregated link
ports.
■ All ports in an aggregated link must be configured in an identical manner,
including communication mode (that is, speed, duplex mode and flow control),
VLAN assignments, and COS settings.
■ All the ports in an aggregated link have to be treated as a whole when moved
from or to, or added or deleted from a VLAN through the specified port-channel.
■ STP, VLAN, and IGMP settings can only be made for the entire aggregated link
through the specified port-channel.
4.3.17.1 channel-group
Use this command to add a port to a static aggregated link. Use the no form to
remove a port from a static aggregated link.
TABLE 4-24 Link Aggregation Commands
Command Function Mode Page
Manual Configuration Commands
interface port-
channel
Configures an aggregated link and enters interface
configuration mode for the aggregated link
GC 4-83
channel-group Adds a port to an aggregated link IC 4-167
Dynamic Configuration Command
lacp Configures LACP for the current interface IC 4-168
Aggregated link Status Display Command
show interfaces
status
port-channel
Shows information about a particular aggregated link. NE,
PE
4-93