[f-nsp] MLX-CER LAG issues (1 port LACP-BLOCKED)?

[Tony Clark]

Hi all,

I've deployed a 2 x 1GE LAG between a CER ('cor2' - running 5.4c) and MLX ('cor3' - running 5.4b), using identical config.  When I bring up the lag, the secondary port goes into LACP-BLOCKED state and I end up with no LAG.  I feel like I must be missing something here - this works for me between 2 MLX's, but there seems to be a subtle difference between the MLX and CER on this issue.

Any help would be appreciated!

Many thanks,

Tony


Config across the 2 units is identical:

cor2:

lag "COR3-COR2" dynamic id 1
 ports ethernet 1/19 to 1/20 
 primary-port 1/20
 lacp-timeout short
 deploy
 port-name "--- cor3.adl6 eth 1/19 ---" ethernet 1/19
 port-name "--- cor3.adl6 eth 1/20 ---" ethernet 1/20
!

cor3:

lag "COR3-COR2" dynamic id 1
 ports ethernet 1/19 to 1/20 
 primary-port 1/20
 lacp-timeout short
 deploy
 port-name "--- cor2.adl6 eth 1/19 ---" ethernet 1/19
 port-name "--- cor2.adl6 eth 1/20 ---" ethernet 1/20

sh LAG looks like:

cor2:

Total number of LAGs:          1
Total number of deployed LAGs: 1
Total number of trunks created:1 (63 available)
LACP System Priority / ID:     1 / 748e.f861.d081
LACP Long timeout:             90, default: 90
LACP Short timeout:            3, default: 3

=== LAG "COR3-COR2" ID 1 (dynamic Deployed) ===
LAG Configuration:
   Ports:         e 1/19 to 1/20 
   Port Count:    2
   Primary Port:  1/20
   Trunk Type:    hash-based
   forward_all_protocol: Disabled
   LACP Key:      100
   LACP Timeout:  short

Port Individual Configuration:
   Port Name     
   1/19 --- cor3.adl6 eth 1/19 ---                                             
   1/20 --- cor3.adl6 eth 1/20 ---                                             

Deployment:  Trunk ID 1, Active Primary 1/20, base fid: 0x0000
                                                                  
Port  Link     Port-State  Dupl Speed Trunk Tag Priori MAC            Name           Type              
1/19  Up       LACP-BLOCKEDFull 1G    1     Yes level0 748e.f861.d081 --- cor3.adl6 edefault-port      
1/20  Up       Forward     Full 1G    1     Yes level0 748e.f861.d081 --- cor3.adl6 edefault-port      

Port  [Sys P] [Port P] [ Key ] [Act][Tio][Agg][Syn][Col][Dis][Def][Exp][Ope]
1/19       1        1     100   Yes   S   Agg  Syn  No   No   Def  No   Blo
1/20       1        1     100   Yes   S   Agg  Syn  Col  Dis  No   No   Ope

cor3:

Total number of LAGs:          1
Total number of deployed LAGs: 1
Total number of trunks created:1 (127 available)
LACP System Priority / ID:     1 / 0012.f2f2.8000
LACP Long timeout:             90, default: 90
LACP Short timeout:            3, default: 3

=== LAG "COR3-COR2" ID 1 (dynamic Deployed) ===
LAG Configuration:
   Ports:         e 1/19 to 1/20 
   Port Count:    2
   Primary Port:  1/20
   Trunk Type:    hash-based
   LACP Key:      100
   LACP Timeout:  short

Port Individual Configuration:
   Port Name     
   1/19 --- cor2.adl6 eth 1/19 ---                                             
   1/20 --- cor2.adl6 eth 1/20 ---                                             

Deployment:  Trunk ID 1, Active Primary 1/20, base fid: 0x0800

Port  Link     Port-State  Dupl Speed Trunk Tag Priori MAC            Name           Type              
1/19  Up       LACP-BLOCKEDFull 1G    1     Yes level0 0012.f2f2.8000 --- cor2.adl6 edefault-port      
1/20  Up       Forward     Full 1G    1     Yes level0 0012.f2f2.8000 --- cor2.adl6 edefault-port      

Port  [Sys P] [Port P] [ Key ] [Act][Tio][Agg][Syn][Col][Dis][Def][Exp][Ope]
1/19       1        1     100   Yes   S   Agg  Syn  No   No   No   No   Blo
1/20       1        1     100   Yes   S   Agg  Syn  Col  Dis  No   No   Ope

Logs from cor2 show the link coming up, the 1/19 remaining LACP_BLOCKED:

Apr  5 14:20:53:I:System: Interface ethernet 1/20, state up
Apr  5 14:20:53:W:LACP: ethernet 1/20 state changes from LACP-BLOCKED to FORWARD
Apr  5 14:20:53:I:LACP: Port 1/20 mux state transition: not aggregate -> aggregate 
Apr  5 14:20:53:I:LACP: Port 1/20 rx state transition: expired -> current 
Apr  5 14:20:52:W:LACP: ethernet 1/20 state changes from DOWN to LACP-BLOCKED
Apr  5 14:20:52:I:PORT: 1/20 enabled by operator from console session.
Apr  5 14:20:52:I:PORT: 1/19 enabled by operator from console session.
Apr  5 14:20:51:I:LACP: Port 1/20 rx state transition: current -> expired (reason: timeout)
Apr  5 14:20:49:I:PORT: 1/19 disabled by operator from console session.
Apr  5 14:20:49:I:PORT: 1/20 disabled by operator from console session.
Apr  5 14:20:49:N:MPLS: LDP entity session 210.5.32.155:0 with peer 210.5.32.156:0 is down
Apr  5 14:20:49:I:STP: VLAN VLAN: 5  - Bridge is RootBridge: 8000748ef861d082 (PortDown)
Apr  5 14:20:49:I:STP: VLAN VLAN: 5  Port 1/20 [Trunk 1] - Bridge TC Event (PortDown)
Apr  5 14:20:49:W:LACP: ethernet 1/20 state changes from LACP-BLOCKED to DOWN
Apr  5 14:20:49:I:LACP: Port 1/20 mux state transition: aggregate -> not aggregate (reason: peer is out of sync)
Apr  5 14:20:49:W:LACP: ethernet 1/20 state changes from FORWARD to LACP-BLOCKED
Apr  5 14:20:49:I:System: Interface ethernet 1/20, state down - disabled



tony clark
director - tony.clark at cine.net.au
--------------------------------------------------------------- 
cinenet - www.cine.net.au 
broadband for screen media
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address level 1 / 180 pulteney street
adelaide south australia 5000
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adelaide ph +61 8 8400 6400 fax +61 8 8400 6401 



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