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Switching Commands
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Fast Leave Mode
This indicates whether or not IGMP Snooping Fast-leave is active on the
VLAN.
Group Membership Interval Time
The Group Membership Interval time is the amount of time in
seconds that a switch will wait for a report from a particular group on a particu-
lar interface, which is participating in the VLAN, before deleting the interface
from the entry.This value may be configured
Max Response Time
This displays the amount of time the switch will wait after sending a query on an
interface, participating in the VLAN, because it did not receive a report for a
particular group on that interface. This value may be configured.
Multicast Router Present Expiration Time
If a query is not received on an interface, participating
in the VLAN, within this amount of time, the interface is removed from the list
of interfaces with multicast routers attached. This value may be configured.
Link Aggregation (LAG)/Port-Channel (802.3AD) Commands
This section provides a detailed explanation of the LAG commands. The LAG feature initially
load balances traffic based upon the source and destination MAC address. If an ARP entry is
learned on the LAG then the LAG is converted to load balance based upon source/destination IP
address.
The commands are divided into two functional groups:
Show commands display switch settings, statistics, and other information.
Configuration commands configure features and options of the switch. For every
configuration command, there is a show command that displays the configuration setting.
port-channel staticcapability
This command enables the support of port-channels (static link aggregations - LAGs) on the
device. By default, the static capability for all port-channels is disabled.
Default
disabled
Format
port-channel staticcapability
Mode
Global Config
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no port-channel staticcapability
This command disables the support of static port-channels (link aggregations - LAGs) on the
device.
Format
no port-channel staticcapability
Mode
Global Config
port lacpmode
This command enables Link Aggregation Control Protocol (LACP) on a port.
Default
disabled
Format
port lacpmode
Mode
Interface Config
no port lacpmode
This command disables Link Aggregation Control Protocol (LACP) on a port.
Format
no port lacpmode
Mode
Interface Config
port lacpmode all
This command enables Link Aggregation Control Protocol (LACP) on all ports.
Format
port lacpmode all
Mode
Global Config
no port lacpmode all
This command disables Link Aggregation Control Protocol (LACP) on all ports.
Format
no port lacpmode all
Mode
Global Config
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port-channel
This command configures a new port-channel (LAG) and generates a logical slot/port number for
the port-channel. The <name> field is a character string which allows the dash '-' character as well
as alphanumeric characters. Display this number using the “show port-channel”.
Note:
Before including a port in a port-channel, set the port physical mode. See ‘speed’ command.
Format
port-channel
<name>
Mode
Global Config
no port-channel
This command deletes a port-channel (LAG).
Format
no port-channel
<name>
Mode
Global Config
port-channel adminmode all
This command enables a port-channel (LAG). The interface is a logical slot/port for a configured
port-channel. The option
all
sets every configured port-channel with the same administrative
mode setting.
Format
port-channel adminmode
all
Mode
Global Config
no port-channel adminmode
This command disables a port-channel (LAG). The interface is a logical slot/port for a configured
port-channel. The option
all
sets
every configured port-channel with the same administrative
mode setting.
Format
no port-channel adminmode
all
Mode
Global Config
port-channel linktrap
This command enables link trap notifications for the port-channel (LAG). The interface is a logical
slot/port for a configured port-channel. The option
all
sets every configured port-channel with
the same administrative mode setting.
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Default
enabled
Format
port-channel linktrap {
<
logical
slot/port
> | all}
Mode
Global Config
no port-channel linktrap
This command disables link trap notifications for the port-channel (LAG). The interface is a
logical unit, slot and port slot and port for a configured port-channel. The option
all
sets every
configured port-channel with the same administrative mode setting.
Format
no port-channel linktrap {
<
logical
slot/port
> | all]
Mode
GlobalConfig
port-channel name
This command defines a name for the port-channel (LAG). The interface is a logical slot/port for a
configured port-channel, and name is an alphanumeric string up to 15 characters. This command is
used to modify the name that was associated with the port-channel when it was created.
Format
port-channel name {
<
logical
slot/port
> | all | <name>}
Mode
Global Config
show port-channel brief
This command displays the static capability of all port-channels (LAGs) on the device as well as a
summary of individual port-channels.
Format
show port-channel brief
Mode
Privileged EXEC and User EXEC
Static Capability
This field displays whether or not the device has static capability
enabled.
For each port-channel the following information is displayed:
Name
This field displays the name of the port-channel.
Link State
This field indicates whether the link is up or down.
Mbr Ports
This field lists the ports that are members of this port-channel, in
<slot/port> notation.
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Active Ports
This field lists the ports that are actively participating in this port-
channel.
show port-channel
This command displays an overview of all port-channels (LAGs) on the switch.
Format
show port-channel
{<
logical
slot/port
> | all}
Mode
Privileged EXEC
Logical slot/port
Valid slot and port number separated by forward slashes.
Name
The name of this port-channel (LAG). You may enter any string
of up to 15 alphanumeric characters.
Link State
Indicates whether the Link is up or down.
Admin Mode
May be enabled or disabled. The factory default is enabled.
Link Trap Mode
This object determines whether or not to send a trap when link
status changes. The factory default is enabled.
STP Mode
The Spanning Tree Protocol Administrative Mode associated
with the port or port-channel (LAG). The possible values are:
Disable
- Spanning tree is disabled for this port.
Enable
- Spanning tree is enabled for this port.
Mbr Ports
A listing of the ports that are members of this port-channel
(LAG), in slot/port notation. There can be a maximum of eight
ports assigned to a given port-channel (LAG).
Port Speed
Speed of the port-channel port.
Type
This field displays the status designating whether a particular
port-channel (LAG) is statically or dynamically maintained. The
possible values of this field are Static, indicating that the port-
channel is statically maintained; and Dynamic, indicating that the
port-channel is dynamically maintained.
Active Ports
This field lists the ports that are actively participating in the port-channel
(LAG).

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