Management and Configuration Guide K/KA/KB.15.15

A4 Active Dyn1 Up Yes Success 100 100
A5 Active Dyn1 Up Yes Success 100 100
A6 Active Dyn1 Up Yes Success 100 100
A7 Active Dyn1 Up Yes Success 100 100
A8 Active Dyn1 Up Yes Success 100 100
A9 Active Dyn1 Standby Yes Success 100 100
Viewing LACP Local Information
HP Switch# show lacp local
LACP Local Information.
System ID: 001871-b98500
LACP Tx Rx Timer
Port Trunk Mode Aggregated Timer Expired
----- ------- ------- ----------- ------ ---------
A2 A2 Active Yes Fast No
A3 A3 Active Yes Fast No
Viewing LACP Peer Information
Use the show lacp peer command to display information about LACP peers. The System ID
represents the MAC address of a partner switch. It will be zero if a partner is not found.
(HP_Switch_name#) show lacp peer
LACP Peer Information.
System ID: 001871-b98500
Local Local Port Oper LACP Tx
Port Trunk System ID Port Priority Key Mode Timer
------ ------ -------------- ----- --------- ------- -------- -----
A2 A2 123456-654321 2 0 100 Passive Fast
A3 A3 234567-456789 3 0 100 Passive Fast
Viewing LACP Counters
Use the show lacp counters command to display statistical information about LACP ports.
Note on the Marker Protocol. Data traffic can be dynamically redistributed in port channels. This
may occur when a link is added or removed, or there is a change in load-balancing. Traffic that
is redistributed in the middle of a traffic flow could potentially cause mis-ordered data packets.
LACP uses the marker protocol to prevent data packets from being duplicated or reordered due
to redistribution. Marker PDUs are sent on each port-channel link. The remote system responds to
the marker PDU by sending a marker responder when it has received all the frames received on
this link prior to the marker PDU. When the marker responders are received by the local system
on all member links of the port channel, the local system can redistribute the packets in the traffic
flow correctly.
For the switches covered in this guide, the marker BPDUs are not initiated, only forwarded when
received, resulting in the Marker fields in the output usually displaying zeros.
(HP_Switch_name#) show lacp counters
LACP Port Counters.
LACP LACP Marker Marker Marker Marker
Port Trunk PDUs Tx PDUs Rx Req. Tx Req. Rx Resp. Tx Resp. Rx Error
---- ------ ------- ------- ------- ------- -------- -------- -----
A2 A2 1234 1234 0 0 0 0 0
A3 A3 1234 1234 0 0 0 0 0
Using keys to control dynamic LACP trunk configuration
The lacp key option provides the ability to control dynamic trunk configuration. Ports with the
same key will be aggregated as a single trunk.
There are two types of keys associated with each port, the Admin key and the Operational key.
The Operational key is the key currently in use. The Admin key is used internally to modify the
146 Port Trunking