ALB load balancing broadcast/flood all ports?

[JonB]

We have 2*E2510-24G with a few VLANs and port 1+2 is configured as Trk1 with all the VLANs. We notice when we have a Linux server connected to a port on each switch and bond the NICs using ALB (Adaptive Load Balancing) that during traffic load, the switch seems to broadcast/flood all the ports with the traffic. If we configure it using Active/Passive instead, the problem goes away.

We notice this because we SNMP monitor traffic on all ports and during copying of large files to/from this server, even ports where VERY low-traffic servers are connected, receive 100+ Mbit traffic.

We have seen some discussions where ALB can behave strange when connected to different switches.

Is this normal behaviour? Comments?

[testmado662]

Hello,

We got the same issue but we are using Lefthand 12.6.

JonB, what switch are you using ?

Regards

[Dennis Handly]

> We got the same issue but we are using Lefthand 12.6.

FYI: This is the StoreVirtual OS.

[JonB]

I'm not really sure since this was 6 years ago but looking back at my emails we contacted HP support. What we did in the end was to update the network switches (to W.14.65?) . We might also been doing some configuration on the flow control.

[Linkk]

This series is retired now, but you should contact HP support with this strange behavior.

Be sure to be on the latest firmware version before contacting support.