High Availability for Dual Core 6509E

[ab_parkhi]

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

[Jon Marshall]

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]

Hi ,

We do not have redundant Sup in 6509E switch.

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

[Jon Marshall]

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

[albert.remo]

Hi!

This will highly depend on the applications you are running on your network. Attached are good references to help you decide using different options. Hope this helps!

Regards,

Albert

[Amit Singh]

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