Aggregation L3_L4 lacp Not working

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Aggrigation L3_L4 lacp Not working when we confgure aggrigation . Load sharing is not happening seams some algo issue  please suggest

When we add 3 ports in aggregation traffic on master ports not happening  
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MANOJ SHARMA

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Posted 3 years ago

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Prashanth KG, Employee

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Hi Manoj,

If I understand the problem correctly, when you are adding a third port to the aggregation, there is no traffic egressing the master port. is that correct?

Please ensure if the master port is part of the aggregation group. 

sh sharingLoad Sharing Monitor
Config    Current    Agg       Ld Share    Ld Share  Agg   Link    Link Up
Master    Master     Control   Algorithm   Group     Mbr   State   Transitions
==============================================================================
     1      1        LACP      L2          1          Y      A        2
                               L2          2          Y      A        2

Check if the Agg Mbr column has Y next to the master port. if that is seen, we need to understand the traffic flow. 
Sharing the traffic on the aggregation ports depend on the traffic that are egressing the switch.

So, please share the details regarding what type of traffic is sent out of this sharing group. if you are using L3_L4, there should be variation in the source-IP , destination-IP, source-port and the destination port numbers for each traffic flow. 

Refer this article to understand why traffic flow is important for the distribution of traffic in the sharing group. 

https://gtacknowledge.extremenetworks.com/articles/Q_A/Why-is-traffic-distribution-across-ports-in-a-LAG-not-even

Hope this helps! 
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MANOJ SHARMA

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Hi I am making aggregation between juniper/redback router with lACP active .

set interfaces ge-2/2/0 hold-time up 30000
set interfaces ge-2/2/0 hold-time down 0

set interfaces ge-2/1/0 hold-time up 30000
set interfaces ge-2/1/0 hold-time down 0

Juniper Router config for example 
set interfaces ge-2/1/0 gigether-options 802.3ad ae12
set interfaces ge-2/2/0 gigether-options 802.3ad ae12
set interfaces ae12 vlan-tagging
set interfaces ae12 aggregated-ether-options minimum-links 1
set interfaces ae12 aggregated-ether-options link-speed 1g
set interfaces ae12 aggregated-ether-options lacp active

===============================================================


Extreme switch config for aggrigation

enable sharing 10:6 grouping 10:6, 10:27 algorithm address-based L3_L4 lacp


output


* SW02.54 # show sharing
Load Sharing Monitor
Config    Current    Agg       Ld Share    Ld Share  Agg   Link    Link Up
Master    Master     Control   Algorithm   Group     Mbr   State   Transitions
==============================================================================

  10:6               LACP      L3_L4       10:6       -      A        2
                               L3_L4       10:27      -      A        4


SW02.86 # show ports 10:27 no-refresh
Port Summary
Port  Display         VLAN Name          Port  Link  Speed  Duplex
#     String          (or # VLANs)       State State Actual Actual
==================================================================
10:27                 (0027)              E     A     1000  FULL
==================================================================
   Port State: D-Disabled, E-Enabled
   Link State: A-Active, R-Ready, NP-Port not present, L-Loopback,
               D-ELSM enabled but not up
               d-Ethernet OAM enabled but not up

SW02.87 # show ports 10:6, 10:27 utilization bandwidth
Port     Link    Link   Rx             Peak Rx       Tx            Peak Tx
         State   Speed  % bandwidth    % bandwidth   % bandwidth   % bandwidth
================================================================================
PE2*161   A       1000      0.00         10.29          0.00           70.73
10:27     A       1000      0.00          0.00          0.00            0.00
================================================================================
          > indicates Port Display Name truncated past 8 characters
          Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback




SW02.89 # show fdb ports 10:6, 10:27
Mac                     Vlan       Age  Flags         Port / Virtual Port List
------------------------------------------------------------------------------

Flags : d - Dynamic, s - Static, p - Permanent, n - NetLogin, m - MAC, i - IP,
        x - IPX, l - lockdown MAC, L - lockdown-timeout MAC, M- Mirror, B - Egress Blackhole,
        b - Ingress Blackhole, v - MAC-Based VLAN, P - Private VLAN, T - VLAN translation,
        D - drop packet, h - Hardware Aging, o - IEEE 802.1ah Backbone MAC,
        S - Software Controlled Deletion




MAC also on coming both ports . As we disable the sharing immediately 10:6 port start getting mac
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MANOJ SHARMA

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ExtremeXOS version 12.5.5.4 we are using
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Prashanth KG, Employee

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Hi Manoj,

Looking at this output,

* SW02.54 # show sharing 
Load
Sharing Monitor
Config   
Current    Agg       Ld
Share    Ld Share  Agg   Link   
Link Up
Master   
Master     Control   Algorithm  
Group     Mbr   State   Transitions
==============================================================================

 
10:6              
LACP      L3_L4      
10:6       -     
A        2
                              
L3_L4       10:27     
-      A        4

it seems like the ports are not part of the aggregation group itself. 

Please check if the LACP PDUs are sent and received on the ports. 

collect the following outputs: 

show lacp counters. 

This article would help you in troubleshooting. 

https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-verify-if-the-LACP-PDUs-are-received-from-the-peer-device

Let us know if we can help further!
(Edited)
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PARTHIBAN CHINNAYA, Alum

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Hello Manoj,

What is the juniper switch you are using.

there is difference in lag algorithm in juniper and extreme.

You fine tune in extreme switches with the below command:
configure sharing address-based custom [ipv4 [source-only | destination-only |source-and-destination] | hash-algorithm [xor | crc-16 | crc-32 [lower | upper]]]

Are you facing issues with incoming or outgoing traffic in the lacp agg?
Means from juniper or traffic towards juniper?

Regards,
Parthiban Chinnaya
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Drew C., Community Manager

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Hi Manoj,
Have the suggestions here helped to answer your questions?