Channel 2/1−2,2/1−4
Broadcast suppression percentage(0−100)
Flow control receive−(off,on),send−(off,on)
Security yes
Membership static,dynamic
Fast start yes
QOS scheduling rx−(none),tx−(none)
CoS rewrite yes
ToS rewrite IP−Precedence
Rewrite yes
UDLD yes
AuxiliaryVlan 1..1000,untagged,dot1p,none
SPAN source,destination
Creating an EtherChannel on a Set/Clear Command−Based
Switch
To create an EtherChannel bundle, you must enable EtherChannel on two or more ports. On a Set/Clear
command−based switch, use the following Privileged mode command to enable EtherChannel:
set port channel <port list> mode <on|off|desirable|auto>
The following output shows 2 as the module number and 1 through 4 as the port numbers:
catalyst5000> (enable) set port channel 2/1−4 ?
<admin_group> Admin group
mode Channel mode
catalyst5000> (enable) set port channel 2/1−4 mode ?
auto Channel auto mode
desirable Channel desirable mode
off Turn off Channelling
on Turn on Channelling
<cr>
catalyst5000> (enable) set port channel 2/1−4 mode auto
Port(s) 2/1−4 channel mode set to auto.
catalyst5000> (enable)
Table 10.8 explains the syntaxes available for the mode option. The mode on each port can be set to on, off,
auto, or desirable.
Table 10.8: The four mode options for configuring an EtherChannel bundle on a switch.
EtherChannel Mode Option Description
on Enables the port to channel or bundle without any negotiation.
off Disables the port from channeling or creating a bundle.
auto Enables a port to negotiate the state in which the port will respond to PAgP
packets it receives. The syntax does not, however, initiate PagP packet
negotiation. This is the default setting.
desirable Enables a port to actively negotiate creating a bundle with the port on the
opposite side of the link by continuously sending PAgP packets.
Note Using the auto and desirable modes allows the configured ports to automatically negotiate
whether to form a channel. The channel ports can be in different modes, as long as the modes
are compatible. For example, if a port is in desirable mode, the port can form a bundle with
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