[f-nsp] Using Super-Vlan and Sub-Vlans

Joseph Hardeman jwhardeman at gmail.com
Sun Feb 14 15:12:00 EST 2010


Hi Everyone,

I have been asked to look into helping to set up a network using 
super-vlan and sub-vlans so that they can have a single gateway IP for 
multiple vlans.  I did find this faq on the subject 
http://www.faqs.org/rfcs/rfc3069.html.  But I have not been able to find 
a good example on how to set this up on Foundry gear.  Does anyone have 
a working config that they would be willing to share that would help me 
out?  There are two core routers that would do VRRP to provide 
redundancy for the gateway IP with Foundry layer2 switches downstream to 
the servers and they want to be able to segment via vlan's different 
groups and their servers.   And this way if someone needs additional 
IP's all they have to do is add from unused IP's in the /24 and don't 
have to change their active systems.

For example:

Gateway address 1.1.1.1/24  vlan 100
group1 servers: 1.1.1.3 - 1.1.1.18  vlan 10
group2 servers: 1.1.1.19 -  1.1.1.25  vlan 11
group3 servers: 1.1.1.26 - 1.1.1.27  vlan 12

Gateway address 1.1.2.1/24  vlan 101
group4 servers: 1.1.2.3 - 1.1.2.18  vlan 14
group5 servers: 1.1.2.19 -  1.1.2.25  vlan 15
group6 servers: 1.1.2.26 - 1.1.2.27  vlan 16

Thanks for everything.

Joe



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