Setting The Etherchannel Port Path Cost; Setting The Etherchannel Vlan Cost - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Configuring EtherChannel

Setting the EtherChannel Port Path Cost

To set the EtherChannel port path cost, perform this task in privileged mode:
Task
Step 1 Use the administrative group number to display
the EtherChannel ID.
Step 2 Use the EtherChannel ID to set the EtherChannel
port path cost.
When you enter the set channel cost command, it does not appear in the configuration file.
Note
The command causes a "set spantree portcost" entry to be created for each port in the
channel. See the
Spanning Tree,"
This example shows how to set the EtherChannel port path 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 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 VLAN Cost

The EtherChannel VLAN cost feature provides load balancing of VLAN traffic across multiple channels
configured with trunking.
You enter the set channel vlancost command to set the initial spanning tree costs for all VLANs in the
channel. The set channel vlancost command provides an alternate cost for some of the VLANs in the
channel (assuming you are trunking across the channel). This command allows you to have up to two
different spanning tree costs assigned per channel; some VLANs in the channel can have the "vlancost"
while the remaining VLANs in the channel have the "cost."
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
6-6
"Configuring the PVST+ Port Cost"
for information on using the set spantree portcost command.
Status Channel
Mode
1/1 notconnect on
1/2 connected on
Device-ID
1/1
1/2 066510644(cat26-lnf(NET25))
Command
show channel group admin_group
set channel cost {channel_id | all} cost
section in
Channel
id
768
768
Port-ID
2/1
Chapter 6 Configuring EtherChannel
Chapter 8, "Configuring
Platform
WS-C6009
78-13315-02