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Connecting Cat4006 to Cisco7000-(what are my options)

I'm migrating client from shared to switched environment. Cat2950's in closets with Cat4006 in core which needs to connect to Cisco 7000. Created Layer 2 Vlans on Cat2950's and Cat4006. Created Layer 3 Vlans on Cat4006 also. Original Plan was to Create Physical layer 3 interface on Cat4006 and connect to the Cisco 7000 via 10MB ethernet. Currently the Cisco 7000 is running an older IOS which doesn't support trunking and only has 10MB ethernet interfaces. What are my other options given my current environment?

- Client has 11 LAN subnets

- Client will upgrade to 3600 router next year

1) .Create Physical layer 3 interface on Cat4006 and connect to the Cisco 7000 via 10MB ethernet( no redundancy to WAN but LAN traffic is switched)

2) Create Layer 2 VLANs on 4006 and connect to Cisco 7000 similar to hub and router approach( access ports on Cat4006 connected to Cisco 7000 via x-over to media converter(cat 5 to AUI) (more latency and redundancy)

Any other options?

5 REPLIES
Cisco Employee

Re: Connecting Cat4006 to Cisco7000-(what are my options)

I'm assuming you have a Sup3 in your CAT4006. Since you have only 10Mb connection to the 7000 router, the best option for you would be to to configure layer 3 VLAN interfaces on the CAT4006 to route between VLANs on the 4006. You can run a routing protocol such as EIGRP to advertise your local segments to the Cisco7000

New Member

Re: Connecting Cat4006 to Cisco7000-(what are my options)

That's what I suggested to client but the client is not comfortable with the 1 10MB connection between the cat4006 and the cisco7000. Any other Layer 2 options available other than the one I listed(option 2) The client wants every subnet to have a physical connection from the Cat4006 to the Cisco7000

Cisco Employee

Re: Connecting Cat4006 to Cisco7000-(what are my options)

I cant think of any other layer 2 option other than option 2 you mentioned. However to implemet option 2, you'll need to trunk but trunking on 10Mbps links is not supported.

New Member

Re: Connecting Cat4006 to Cisco7000-(what are my options)

Thanks,

So what are my options besides option #1

Re: Connecting Cat4006 to Cisco7000-(what are my options)

You can trunk with 802.1q at 10 meg on newer IOS's. Feature was introduced in 12.0T. Not sure the exact release at moment, but 12.1 or 12.2 will have it.

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