High Availability for Dual Core 6509E

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Apr 6th, 2007
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Hi,


I have two new 6509E's in my network.


I would like to configure them in HA mode to reduce Failover time.


Please let me know the options.


Thanks in Advance

Aniruddha


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Jon Marshall Fri, 04/06/2007 - 12:13
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Hi


You don't say whether or not each chassis has redundant supervisors in them.


Attached is a link to configuring NSF/SSO for redundant supervisors.


http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a008027e4cd.html


If you don't have redundant sups then could you let us know what you need.


HTH


Jon

ab_parkhi Fri, 04/06/2007 - 12:48
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Hi ,

We do not have redundant Sup in 6509E switch.


I want to configure 6509E to reduce failover and convergence time.

Jon Marshall Fri, 04/06/2007 - 23:50
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Hi


If you don't have redundant sups then failover and convergence comes down to your layer 3/layer 2 protocols.


Attached is a Cisco doc on recovery times comparing EIGRP/OSPF & layer 2.


http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/cdccont_0900aecd801a89fc.pdf


HTH


Jon


Amit Singh Mon, 04/09/2007 - 20:43
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Aniruddha,


What is an over all topology. Do you have a three tier architecture (Access-Distribution-core) or 2- tier archi( Collapsed Access/distri-core or access-collapsed disti/core). The over-all design recommendation depends on the final architecture.


If you have a 3-tier archi, then run RPVST+ from access-distribution layer and run EIGRP or OPSF at the core layer.You can run MHSRP at the distribution layer if you have dual chassis design. If you have a single chassis with redundant sup run NSF/SSO between the redundant sup's.


If you have a tier-2 architecture, then run RPVST+ and MSHRP at the core layer and RPVST+ at the access layer.Multiple HSRP will give you the HA between the 2 chassis for multiple vlans.


http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/swcg/spantree.htm


http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12235se/scg/swhsrp.htm#wp1061629


HTH,Please rate if it does.


-amit singh





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