Channel-Group - Cisco Catalyst 3750 Command Reference Manual

Chapter 2 Catalyst 3750 Switch Cisco IOS Commands

channel-group

Use the channel-group interface configuration command on the switch stack or on a standalone switch
to assign an Ethernet port to an EtherChannel group. Use the no form of this command to remove an
Ethernet port from an EtherChannel group.
Syntax Description channel-group-number
mode
active
auto
desirable
non-silent
on
passive
Defaults
No channel groups are assigned.
No mode is configured.
Command Modes Interface configuration
78-16181-01
channel-group channel-group-number mode {active | {auto [non-silent] | desirable [non-silent]
| on} | passive}
no channel-group
Specify the channel group number. The range is 1 to 12.
Specify the EtherChannel mode.
Unconditionally enable Link Aggregation Protocol (LACP).
Active mode places a port into a negotiating state in which the port initiates
negotiations with other ports by sending LACP packets. A channel is
formed with another port group in either the active or passive mode.
Enable the Port Aggregation Protocol (PAgP) only if a PAgP device is
detected.
Auto mode places a port into a passive negotiating state in which the port
responds to PAgP packets it receives but does not start PAgP packet
negotiation. A channel is formed only with another port group in desirable
mode. When auto is enabled, silent operation is the default.
Unconditionally enable PAgP.
Desirable mode places a port into an active negotiating state in which the
port starts negotiations with other ports by sending PAgP packets. A
channel is formed with another port group in either the desirable or auto
mode. When desirable is enabled, silent operation is the default.
(Optional) Used with the auto or desirable keyword when traffic is
expected from the other device.
Force the port to channel without PAgP or the LACP.
With the on mode, a usable EtherChannel exists only when a port group in
the on mode is connected to another port group in the on mode.
Enable LACP only if a LACP device is detected.
Passive mode places a port into a negotiating state in which the port
responds to LACP packets it receives but does not initiate LACP packet
negotiation. A channel is formed only with another port group in active
mode.
Catalyst 3750 Switch Command Reference
channel-group
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