Configuring Etherchannel - Cisco Catalyst X4232 Installation And Configuration Note

This example shows you how to define the allowed VLANs list for trunk port 2/1 to allow
VLANs 1–100 and VLANs 500–1005; it also shows you how to verify the allowed VLAN list for the
trunk:
Console> (enable) set trunk 2/1 1-100,500-1005
Removing Vlan(s) 101-499 from allowed list.
Port 2/1 allowed vlans modified to 1-100,500-1005.
Console> (enable) show trunk 2/1
Port
--------
2/1
Port
--------
2/1
Port
--------
2/1
Port
--------
2/1
Console> (enable)

Configuring EtherChannel

EtherChannel port bundles allow you to group multiple Ethernet ports into a single logical transmission
path between the switch and a router, host, or another switch.
Depending on your hardware, you can form an EtherChannel with up to eight compatibly configured
Fast or Gigabit Ethernet ports on the switch. In addition, on the Catalyst 4000 family switches, you can
configure an EtherChannel using ports from multiple modules. All ports in an EtherChannel must be
the same speed. Using the Catalyst 4000 Layer 3 Services module, you can configure a Gigabit
EtherChannel with 2 internal or 2 external Gigabit Ethernet ports. To configure a Gigabit EtherChannel
connection on the internal ports, you must configure both the internal Layer 2 ports from the supervisor
engine console and the internal Layer 3 Gigabit Ethernet ports from the Catalyst 4003 and 4006 Layer 3
Services module console for a channel.
Both Fast and Gigabit EtherChannel bundles can be configured as trunk links. After a channel has been
formed, configuring any port in the channel as a trunk applies the configuration to all ports in the
channel. Identically configured trunk ports can be configured as an EtherChannel. For more information
on EtherChannel, refer to the Software Configuration Guide for your switch.
Creating an EtherChannel
You create an EtherChannel port bundle by specifying the ports in the channel and the channeling mode.
When you create an EtherChannel, an administrative group number is assigned automatically if one is
not already assigned to the specified ports. In addition, a channel ID is assigned.
78-10164-03
Mode Encapsulation
----------- -------------
desirable isl
Vlans allowed on trunk
---------------------------------------------------------------------
1-100, 500-1005
Vlans allowed and active in management domain
---------------------------------------------------------------------
1,521-524
Vlans in spanning tree forwarding state and not pruned
---------------------------------------------------------------------
1,521-524
Installation and Configuration Note for the Catalyst 4000 Layer 3 Services Module
Configuring the Module for InterVLAN Routing
Status Native vlan
------------ -----------
trunking 1
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