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3560X - Port Channel not load balancing

PolyCaleb
Level 1
Level 1

I'm attempting to figure out how to get my 3560X to load balance a LACP port-channel that is going to a server.  So about 90% of the traffic goes through one port.

Port-Channel 4:                         GigabitEthernet0/14:                    GigabitEthernet0/48:

868066479 packets input          235817603 packets input             632250162 packets input

891377158 packets output       828493193 packets output            62885071 packets output

 

EtherChannel Load-Balancing Configuration:
        src-mac

 

Ports in the Port-channel:

Index   Load   Port     EC state        No of bits
------+------+------+------------------+-----------
  0     00     Gi0/14   Active             0
  0     00     Gi0/48   Active             0

 

ip cef load-sharing algorithm universal 6F1DD053

 

I'm not understanding why both ports have a "Load" value of 00.  Any assistance on what I could do to more evenly load balance across the port channel would be appreciated.

2 Replies 2

thiland
Level 3
Level 3

Have you already tried configuring a more granular/balanced load balancing algorithm?  The way it's setup now is the source MAC will always use the same port-channel member. 

 

You could test using MAC + IP + Port # in the load balance algorithm to get more even load:

config t
port-channel load-balance src-dst-port

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Posting

I recall(?) the 3560X might not support src-des-port, i.e.:

3560X(config)#port-channel load-balance ?
  dst-ip       Dst IP Addr
  dst-mac      Dst Mac Addr
  src-dst-ip   Src XOR Dst IP Addr
  src-dst-mac  Src XOR Dst Mac Addr
  src-ip       Src IP Addr
  src-mac      Src Mac Addr

 

If you only find the above, suggest trying src-dest-ip.

 

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