Linux – Help on configuring a switch to make 802.3ad link aggregation work

bondinglinuxnetworking

I have a switch (SRW2024) which supports both jumbo frames and link aggregation.

I've got 2 servers (each of them has 2x Gbit nic, working under kernel) that I want to connect to a filestorage backend (iSCSI, openfiler).

I've setup bonding on each server (eth0+eth1) as bond0 and configured the subnet for it.
File server has also the same network.

Bonding mode is 4 (802.3ad Dynamic link aggregation) on every node on the network.

But, unable to ping any host.

Using tcpdump on the bond0, i'm getting an arp request 'who has x.x.3.1 tell x.x.3.2' but the target machine is unable to answer.

No firewall, no special policies.

I've spent hours trying different configurations … no success.

I'm looking for someone to get me started, i'm just lost.

Any help would be really appreciated.

Best Answer

Web Configuraton Guide for Linksys Switches:

http://www.cisco.com/en/US/docs/switches/lan/csbms/srw2048/administration/guide/SRW-US_v10_UG_A-Web.pdf

Page 25-26 describe where to go to setup LACP on the switch side. Make sure you have your admin keys set on the two ports going to the switch.

Sorry I can't be of more help, I've only dealt with Catalyst, ProCurve, and Juniper EX switches for things like this.

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