How to configure a redundant network with 2 seperate metro Es?

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Sep 17th, 2009
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There are two Data Metro E's and two Voice Metro E's. (2 3400 switches at each site) Site A has two 3400 switches, which terminate in a 6509 switch. Site B has two 3400 switches that terminate into a 4507 switch. We are looking for a solution that will preferably bond the two pipes (Ether channel) and at the bare minimum fail over (possibly hsrp) if one fiber is cut. There are currently 6 sites total on the data Metro E. When you show cdp neigh you can see all sites on the Data MetroE. On the Voice vlan you only see Site A and Site B. Is an Ether channel a possible solution on dual metro Es when six total sites are connected to the same Metro E? If not what is the preferred solution? Site B's default route points to Site A, which is the main site. Thanks in advance for your assistance!

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tstanik Wed, 09/23/2009 - 14:18
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The Cisco Catalyst 2950 Series enables the service provider to construct a highly redundant network. PVST+ allows the service provider to implement Layer 2 load-sharing on redundant links, efficiently utilizing the extra capacity inherent in a redundant design. Service providers can also utilize Cisco EtherChannel technology to aggregate up to 4 Gbps through Gigabit EtherChannel technology and up to 1.6 Gbps through Fast EtherChannel technology. The Cisco EtherChannel technology enhances fault tolerance and offers higher-speed aggregated bandwidth between switches and to routers


http://www.cisco.com/en/US/products/hw/switches/ps628/products_data_sheet09186a0080088899.html


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