12-06-2011 05:19 AM - edited 03-04-2019 02:32 PM
Hi,
What is the main benefit of VRF in cisco routers . Is it more useful for service providers only ?
Do we use in enterprise networks ? if so in what circumstances it is used ? Please explain.
Thanks,
Ajay
12-06-2011 05:26 AM
use your favourite search engine and search "Cisco vrf configuration"
12-06-2011 07:19 AM
Vrf is mainly used in ISP and services provider type of networks for multi service or multi tenant networks
However with the modern networks that contain alot of multi service and application and multi tenant infrastructures
Also with the data center servers visualizations network infrastructure virtulization getting more popular in the enterprise networks for isolation and traffic separation over same physical network
For more details you can have a look at the bellow link
http://www.cisco.com/en/US/docs/nsite/network_virtualization/NV_AC_SAG/E2E_NV_AC.pdf
Hope this help
If helpful rate
12-06-2011 07:25 AM
And this is very good link
Design Zone for Campus
Network Virtualization--Path Isolation Design Guide
http://www.cisco.com/en/US/docs/solutions/Enterprise/Network_Virtualization/PathIsol.html
Hope this help
12-06-2011 10:01 AM
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It's main benefit it does for L3 routing what VLANs do for L2.
Often very useful to Service Providers who have multiple customer traffic flowing across their infrastructure that they wish to keep (logically) separate from each other.
Can be useful in the Enterprise too. For example, suppose you want to provide a logical guest network across your Enterprise's physical network in parallel with your logical corporate network. VRF would help support this.
Service provider often use MPLS to support VRF. In the Enterprise, VLANs are often used to support VRF.
In the Enterprise VRF might also be used during a company merger as two distinct company networks can be run across one combined infrastructure.
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