5406Rzl2 LACP periodic slow/fast

[Wieneke]

Hello,

on my 5406Rzl2 I have configurated a trunk LACP with two Interfaces.
To this trunk is another switch connected with also a trunk LACP. The second Switch is a non HP switch. By this switch it is possible to configurate LACP periodic fast as a static value.
The HP switch set this value automatic.

Now my problem, if one connection of the two data lines is lost first the hp switch is change periodic from fast to slow. 30 seconds later it change the status to not avaible. Therfore a smooth change from the datas to the avaible data line is not possible.
My question is, can I configurate the lacp periodic to fast static? So by a connection lost it change directly to not avaible and only the second data line is used?

Best regards,
Marian Wieneke

[parnassus]

Can you share outputs of below commands (executed on HP 5406R zl2 switch):

• show trunks
• show lacp
• show lacp local
• show lacp peer
• show lacp counters

[Wieneke]

The unimportend informations I have deleted or replaced with *.


HP5406Rzl2# show trunks

Load Balancing Method: L4-based

Port | Name Type | Group Type
------ + -------------------------------- ---------- + ------ --------
C1 | ******* 100/1000T | Trk2 LACP
D1 | ******* 100/1000T | Trk2 LACP

HP5406Rzl2_#0014# show lacp

LACP

LACP Trunk Port LACP Admin Oper
Port Enabled Group Status Partner Status Key Key
----- ------- ------- ------- ------- ------- ------ ------
C1 Active Trk2 Up Yes Success 0 ***
D1 Active Trk2 Up Yes Success 0 ***

HP5406Rzl2# show lacp local

LACP Local Information.

LACP Tx Rx Timer
Port Trunk Mode Aggregated Timer Expired System ID
----- ------ -------- ----------- ------ -------- -----------------
C1 Trk2 Active Yes Fast No ****
D1 Trk2 Active Yes Fast No ****

HP5406Rzl2# show lacp peer

LACP Peer Information.

System ID: *******

Local Local                         Port       Oper LACP Tx
Port Trunk System ID Port Priority Key Mode Timer
------ ------ ----------------- ----- --------- ------- -------- -----
C1 Trk2 **** 1 127 1 Active Fast
D1 Trk2 **** 4 127 1 Active Fast

HP5406Rzl2# 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
----- ------ --------- --------- -------- -------- -------- -------- --------
C1 Trk2 ****** ***** 0 0 0 0 0
D1 Trk2 ****** ***** 0 0 0 0 0

If one data line is not available, the Timer is change from fast to slow. Only after 30 sec the other data line is completely used.

[parnassus]

There is nothing particularly strange on HP 5406R zl2 side looking at the outputs of suggested commands: both peers are set to use LACP and be Active (so both ends can transmit LACPDU and they do it using Fast mode, so every 1 seconds) and, even if you commented the LACP Marker PDUs Transmitted/Received (Tx/Rx) <-- those values are not "private information", I suspect you have some non-zero values on PDUs Tx/Rx columns (see show lacp counters output) for C1 and D1 interfaces...those values mean that both ends (HP switch and non-HP switch) are exchanging PDUs as it normally should.

[ishouli]

in the event that one association of the two information lines is lost first the hp switch is change occasional from quick to moderate. after 30 seconds it change the status to not avaible. Therfore a smooth change from the pieces of information to the avaible information line isn't conceivable.