Help On How To Setup Up A Redundant Network With A Colo Company
A system can distribute the load from a failed system across the remaining hardware without any glitches or overload thanks to its redundancy. When your leased cabinet or cage is connected to your UK colocation network, setting up a redundant network solution is possible. This simply but expensive process is usually intimidating for most people. However setting up a redundant network through a colocation provider is very easy and advantageous.
In fact, your access to websites can be improved drastically just by outsourcing your network traffic to a colo provider with a greater bandwidth capacity. Additionally, customers reduce their traffic back haul costs and free up their internal networks for other uses. Many companies now offer simple solutions to setting up a redundant network with a colocation provider.
To have simple redundant network configure two VLANS in switches one with external where your router and ASA 5505 interface will be connected and another with local LAN where another port of ASA 5505 will be connected an will act as gateway for local servers. To have redundancy for internet links also configure HSRP in router local interface with tracking configuration so that one links goes down traffic will be shifted to other one without any delay, for that you need to configure a default route towards the VIP of HSRP of router in ASA 5505.
Network redundancy can be broken down into the internal network and the external network. Your redundant external network is created when you take two drops form different routers in your server co-location provider. Typically each drop has its own or 30 configured on it so you can set up communication between your firewalls and the colocation routers or firewalls. Then ask your colocation to route a public IP space via BGP over each of the drops they have provided. BGP will allow your primary link to drop and be picked up by the secondary drop with minimal downtime without any human interaction. By plugging each drop into a different switch on your network and splitting two Ethernet cables from each switch, you can plug the drops into your firewalls. A plug is then split into each firewall from one colocation plug. Likewise, drop two goes through the same process on a different route. However if you can't afford the four switches you can make a VLAN on a three port.
The internal network redundancy is provided by plugging DMZ1 on FW01 into SW01 and DMZ1 on FW02 into SW02. It's also important, if you want the two servers to travers the network out, to make sure that SW01 and SW02 are connected properly. That being said, it's also important to make sure that LB01 is plugged in SW01 and LB02 in SW02.
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For server co-location visit CCS Leeds at http://www.ccsleeds.co.uk . CCS Leeds LTD expertise in colocation services at http://www.ccsleeds.co.uk/colocation-hosting.html
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