Unanswered Question
Oct 19th, 2007
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Hi, We 'got a network with a collapsed core

( SVI with ACL ) with 30 vlans crossed all over .

We want to migrate with hierarchical model .I 'm asking about solutions

THe need is to activate HSRP and for routing OSPF.

I heard about VRF lite

but how could it help me in this design?

Thanks for help.

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royalblues Mon, 10/22/2007 - 09:16
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VRF lite would certainly help for isolating the VLANS and can take care of the ACL's in the SVI.

Create VLANs and associate each vlan with a paricular VRF forwarding instance.

If you have 2 core/dist switches, connect the access switches to each core and enable uplinkfast. HSRP can be configured for VLANS for redundnacy.

We need more information abut your WAN topology to discuss OSPF routing



fd_case17 Sun, 10/28/2007 - 06:37
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It's for the LAN .

We want to make a new topology

Like the hierarchical model.

1 core with 2 routers

3 distributions with 3750 ( 3*2 3750)

acces layer 2950

So ok for uplinkfast on the 2950,

we want hsrp in the distribution ( for 4 vlans


The link between the distribution and the core might be routed ports, so we need a routing protocol .

I'masking if hsrp and the routing protocol might be correlate and how


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