[Ilugc] Bonding and Duplex settings problem
- From: binand@xxxxxxxxx (Binand Sethumadhavan)
- Date: Sat Aug 12 17:18:28 2006
On 12/08/06, Anandh G <anandhg02@xxxxxxxxx> wrote:
I had tried this time with two switches in load
balancing mode (mode=0), but still I am facing
problem. This time there is delay in the packet beign
received is more (not too high, but more than what I
receive in mode=1) and few packet drops. But i should
get more performance in mode 0 than in mode=1 as there
are two links working ? the destination which I ping
Depends on how you define performance. If you are in load-balanced
mode with correctly configured switches, you will certainly see double
the throughput of one interface. The latency will remain more or less
the same, though.
In high availability mode, theoretically you can pull the cable out of
the active interface and your server should still be live on the
network without a blink (you might lose one ping packet).
Which kernel are you running on RHEL? Later versions of RHEL3 have
several bug fixes in the bonding driver - I have seen very visible
improvements in NIC bonding over successive updates.
Lastly, decide which one you want - load-balancing or high
availability. In most cases, you only need high-availability -
load-balancing/sharing ought to be a design issue only if you expect
your server to push more data than the capacity of one NIC.
If you really want load-balancing, then you should ask your network
administrator to create an etherchannel or trunk for your server
(depending on the switch model and IOS version, I think).
Binand
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