Setting The Etherchannel Spanning Tree Port Vlan Cost; Removing An Etherchannel Bundle - Cisco WS-C2950SX-48-SI Configuration Manual

Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel
Console> (enable) set channel cost 768 12
Port(s) 1/1,1/2 port path cost are updated to 31.
Channel 768 cost is set to 12.
Warning:channel cost may not be applicable if channel is broken.
Console> (enable)

Setting the EtherChannel Spanning Tree Port VLAN Cost

The spanning tree port VLAN cost provides an alternate cost for some of the VLANs in a trunk channel.
Setting the spanning tree port VLAN cost provides load balancing of VLAN traffic across multiple
channels configured with trunking because some VLANs in the channel can have port VLAN cost, while
the remaining VLANS in the channel have port cost.
To set the spanning tree port VLAN cost for an EtherChannel, perform this task in privileged mode:
Task
Step 1 Determine the EtherChannel ID of the EtherChannel for
which you want to set the port VLAN cost.
Step 2 Set the spanning tree port VLAN cost for an EtherChannel
using the EtherChannel ID obtained in Step 1.
This example shows how to set the EtherChannel VLAN cost for channel ID 768:
Console> (enable) show channel group 20
Admin Port
group
----- ----- ---------- --------- --------
20
20
Admin Port
group
----- ----- ------------------------------- ------------------------- ----------
20
20
Console> (enable)
Console> (enable) set channel vlancost 768 12
Channel 768 vlancost set to 12.
Console> (enable)

Removing an EtherChannel Bundle

To return a Fast EtherChannel or Gigabit EtherChannel bundle to its default configuration, perform this
task in privileged mode:
Task
Step 1
Return a channel to its default configuration (you
must perform this task on both sides of the channel).
Step 2
Verify the configuration.
78-15486-01
Status Channel
Mode
1/1 notconnect on
1/2 connected on
Device-ID
1/1
1/2 066510644(cat26-lnf(NET25))
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide
Command
show channel group admin_group
set channel vlancost {channel_id | all}
cost
Channel
id
768
768
Port-ID
2/1
Command
set port channel port_list mode auto
show port channel [mod_num[/port_num]]
Configuring EtherChannel Using PAgP
Platform
WS-C6009
—
Release 8.1
6-9