Reference Guide
Link Aggregation Control Protocol (LACP) | 951
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Link Aggregation Control Protocol 
(LACP)
Overview
This chapter contains commands for Dell Force10’s implementation of Link 
Aggregation Control Protocol (LACP) for the creation of dynamic link aggregation 
groups (LAGs — called port-channels in FTOS parlance). For static LAG 
commands, the section Port Channel Commands in the Interfaces chapter), based on 
the standards specified in the IEEE 802.3 Carrier sense multiple access with collision 
detection (CSMA/CD) access method and physical layer specifications.
Commands in this chapter generally are supported by FTOS on all Dell Force10 
systems as indicated by the characters that appear below each command heading: 
e 
E-Series, 
c C-Series, s S-Series, or .
Commands
Use the following commands for LACP:
• clear lacp counters
• debug lacp
• lacp long-timeout
• lacp port-priority
• lacp system-priority
• port-channel mode
• port-channel-protocol lacp
• show lacp
In addition, an FTOS option provides hitless dynamic LACP states (no noticeable 
impact to dynamic LACP states after an RPM failover) on E-Series. Refer to 
redundancy protocol in the High Availability chapter.










