Hi Sam,
we have done #2 in several projects, however with different switches
such as Nortel with SplitMLT, Stacked Extreme switches and Force10
Switches, I have not been involved with Cisco, however I have not
heard of any issues.
If you are running Solaris 10 you should be able to use dladm to set
up Link Aggregation unless you are using an older release of Solaris 10.
Thanks,
Mikael
On Jun 7, 2009, at 3:26 PM, Sam Munzani wrote:
Team,
I am trying to design a data center network and debating if I should
use which one of the solution? Any suggestions/recommendations?
Solution # 1: Use IPMP on Solaris hosts. Have one NIC0 physically go
to SW1 and NIC1 go to SW2. SW1 and SW2 are cisco switches clustered
together behaving like one large switch.
Solution # 1: Use Sun trunking 1.3(http://vegdave.wordpress.com/category/technology/sun/solaris-10/trunking/sun-trunking-13/
) on Solaris hosts. Have one NIC0 physically go to SW1 and NIC1 go
to SW2. SW1 and SW2 are cisco switches clustered together behaving
like one large switch. Then configure cisco side accordingly with
LACP ether channel.
I always used Solution # 1 in my previous designs because of comfort
zone and I know it works. However Solution # 2 would get me
following benefits.
1. No failover delays because it doesn't have to rely on spanning
tree convergence
2. When both links are up, I get double the bandwidth.
The concerns:
1. Are there serious bugs for trunking 1.3 when operating with Cisco
switches? Some times cisco do things differently that drives systems
nuts.
2. Are there any known issues with Sun Clusters or Veritas Clusters
and Sun Trunking 1.3? Logically thinking, it should be totally
transparent to the clusters but you might know that better.
Thanks in advance,
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sam Munzani
CCIE # 6479(R&S, Security), CISSP
Sun Remote Operations Management
Sun Microsystems, Inc.
[email protected]
Office: (630) 689-4165 / x66642
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Mikael Lofstrand
Chief Technologist, Networking
Sun Microsystems
Vikingsgatan 1
Gothenburg SE-411 04 Sweden
Phone +46-31-6349 19 / x24019
Fax +46 31 634999
Email [email protected]
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