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From: admin on 6 Sep 2007 07:15
Hi all
I've a big problem while bonding 2 nics on 2 serveurs with a Allied
Telesyn switches

The working conditions are below

*TEST A:

0- i unplugg the nic from the switch
1- a make 2 trunk on the switch (port 1-2 an port 3-4)
on each server i
2- load bonding modules
modprobe bonding mode=4 miimon=100
3- activate nics
ifconfig eth1 0.0.0.0 up
ifconfig eth2 0.0.0.0 up
4- configure ip of the bond0
ifconfig bond0 10.0.1.6 netmask 255.255.255.0 (and 10.0.1.7 on the
other one)
5- enslave the nics
ifenslave bond0 eth1 eth2
6- ensure that nics are bonded and 802.3ad is ok
all is all right
7- ping 10.0.1.6
destination host unreachable

arp -e
10.0.1.6 (incomplete) bond0

tcpdump -i bond0 show me arp request and nothing else


*TEST B
0- like TEST A
1- I make 1 trunk with ports 1,2,3,4
2-7 Like TESTA
But if on one server i do
ifenslave -d bond0 eth1
the ping runs correctly

*TESTC
0- Like TESTA
1- I don't make trunk on the switch
2-7 Like TESTA
8- I can Ping all servers

------------
BandRate measurement
Each interfaces are e1000 1Gb/s
Each test are run with iperf

*TEST1
no bonding just nics connected to switch
the results are 988Mb/s

*TEST2
Configuration on bonding is like TESTB
results of iperf is 54Mb/s

*TEST3
Configuration on bonding is like TESTB
results of iperf is 58Mb/s




Does someone have already made bonding to work correctly in mode 802.3ad
with Allied Telesyn Layer 2 Manageable switch like 9410gb, 8326gb or
950/24)??

PLEAS HEEEELPPPP

thank you
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