Specifications

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Chapter 2 Cisco IOS Commands
channel-group
channel-group
Use the channel-group interface configuration command to assign an Ethernet interface to an
EtherChannel group. Use the no form of this command to remove an Ethernet interface from an
EtherChannel group.
channel-group channel-group-number mode {auto [non-silent] | desirable [non-silent] | on |
active | passive}
no channel-group
Syntax Description channel-group-number Specify the channel group number. The range is 1 to 6.
mode Specify the EtherChannel Port Aggregation Protocol (PAgP) or Link
Aggregration Control Protocol (LACP). mode of the interface.
active Unconditionally enable LACP.
Active mode places an interface into a negotiating state in which the
interface initiates negotiations with other interfaces by sending LACP
packets. A channel is formed with another port group in either the active or
passive mode. When active is enabled, silent operation is the default.
auto Enable PAgP only if a PAgP device is detected.
Auto mode places an interface into a passive negotiating state, in which the
interface responds to PAgP packets it receives but does not initiate PAgP
packet negotiation. A channel is formed only with another port group in
desirable mode. When auto is enabled, silent operation is the default.
desirable Unconditionally enable PAgP.
Desirable mode places an interface into a negotiating state in which the
interface initiates negotiations with other interfaces 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.
non-silent (Optional) Used with the auto or desirable keyword when PAgP traffic is
expected from the other device.
on Force the interface to channel without PAgP or LACP.
With the on mode, a usable EtherChannel exists only when an interface
group in the on mode is connected to another interface group in the on mode.
passive Enable LACP only if an LACP device is detected.
Passive mode places an interface into a negotiating state in which the
interface 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. When passive is enabled, silent operation is the default.