Etherchannel performance 4507RE

Unanswered Question

I have a 4 port etherchannel configured to talk to a 4 port etherchannel on NETAPP server.  The NETAPP server seems to be distributing traffic across all the links.  The 4507 does not.  It appears that traffic is going across only 2 of the for links

Port-channel10 is up, line protocol is up (connected)

  Hardware is EtherChannel, address is c84c.759a.62e2 (bia c84c.759a.62e2)

  MTU 1500 bytes, BW 4000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, media type is N/A

  input flow-control is off, output flow-control is unsupported

  Members in this channel: Gi6/17 Gi6/18 Gi6/19 Gi6/20

Server sending to switch

Port             InBytes   InUcastPkts   InMcastPkts   InBcastPkts

Gi6/17      263774770909     228034699         11576          1883

Gi6/18     1209580889290     892107627         17360             0

Gi6/19      115991867909      93034389         11576             0

Gi6/20      761051898228     812562534         48540             0

Switch sending to server

Port            OutBytes  OutUcastPkts  OutMcastPkts  OutBcastPkts
Gi6/17      522129808402     474077994        577206        365407
Gi6/18      181075481383     189468812         97514        365774
Gi6/19                 0             0             0             0<---
Gi6/20                 0             0             0             0 <---

Currently using  as my channel LB config - traffic to the server is from both vlan local to the server and not

EtherChannel Load-Balancing Configuration:

        src-dst-port EtherChannel Load-Balancing Configuration:
        src-dst-port

But have tried source IP, src-dst-ip

I have this problem too.
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glen.grant Fri, 04/13/2012 - 11:25

  All you can really do is to play with the load balancing algorithim and choose the one that gives you the best balance.  Are you sure  all 4 ports are active in that etherchannel ?   Verify with show etherc summ"  . 

Edison Ortiz Fri, 04/13/2012 - 13:18

Flows with the same src,dst,port will hash to the same link on an etherchannel. It is an expected behavior.

Copy of the active server connections.   Server IP is 69.38 and all clients connect via port 445.  Is this a bug?

11.22.69.123.22      11.22.42.165.25331    65536      0   8760      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.173.4011     65535      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.162.4104     64893      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.205.3572     64184      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.92.4396      64137      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.105.1566     63740      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.44.55127     64640      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.96.54889     64512      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.96.54886     64256      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.224.2436     64762     39  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.123.3567     63272      0  64240      0 ESTABLISHED  -

11.22.69.38.445      172.23.98.22.49715     65280      0  64240      0 ESTABLISHED  -

11.22.69.38.445      172.23.98.26.51696     17408      0  64240      0 ESTABLISHED  -

11.22.69.38.445      172.23.98.38.55060     64512      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.35.59752     65536      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.147.1089     64512      0  64240      0 ESTABLISHED  -

11.22.69.38.445      172.23.98.14.59994     64256      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.67.34.55438     64484      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.61.55039     64256      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.29.52150     65024      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.72.63592     65536      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.66.51830    524280      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.146.1686     64893      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.153.1631     63199      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.36.59559    777472      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.101.52478    65536      0  64240      0 ESTABLISHED  -

11.22.69.38.445      172.23.98.11.59845     64512      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.43.66.1456      65535      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.144.49781   262140      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.60.3278      65535      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.51.65065     65024      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.85.62688     65012      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.47.1966      64264      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.11.1162      65367      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.88.64018    246784      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.45.4737      63409      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.128.1845     65108      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.141.2928     63077      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.103.53113   524280      0  64240      0 ESTABLISHED  -

11.22.69.38.139      11.22.42.67.49224     65535      0  64240      0 ESTABLISHED  -

11.22.69.38.445      172.23.105.12.49610   131684      0  64240      0 ESTABLISHED  -

11.22.69.38.445      11.22.42.53.1076      64317      0  64240      0 ESTABLISHED  -

Port           OutBytes OutUcastPkts OutMcastPkts OutBcastPkts

Gi6/17     610166948372     559760407       1085059       777676

Gi6/18     443113179770     421726844        245003       660588

Gi6/19                 0             0             0             0

Gi6/20                 0             0             0             0

Edison Ortiz Tue, 04/17/2012 - 10:32

Can you post configuration portion from the logical interface (port-channel) and physical interface members?

As well as 'show etherchannel summary'?

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