High Availability Methods for Routing in SOHO Networks
Today, even for small businesses, data and IT services must be cloud-ready and available at any time, from any location, by anyone. End-user appreciate (and increasingly, expect) of always-on business resources and non-disruptive operations. Improving data backup and recovery, and business continuity / disaster recovery are among top 10 IT priorities. As gateway is often the most vulnerable network element, this article focuses on an Internet protocol called VRRP (Virtual Router Redundancy Protocol) utilization as it enables the ability to have backup routers when using a statically configured router at some point of a local area network.
A redundant, cost-effective network block instead of one single router is presented, along with test topology and some guidelines. Test results are included and discussed.
KeywordsInternet Protocol Local Area Network Break Period Disaster Recovery Edge Router
Unable to display preview. Download preview PDF.
- 1.Garrett, B., Laliberte, B.: Brocade One and Hitachi Virtual Storage Platform. A Reference Architecture for Next Generation Data Centers. Enterprise Strategy Group Whitepapers (September 2010)Google Scholar
- 2.Li, T., Cole, B., Morton, P., Li, D.: Cisco Hot Standby Router Protocol (HSRP). RFC 2281 (March 1998)Google Scholar
- 3.Nadas, S.: Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6. RFC 5798 (March 2010), http://tools.ietf.org/html/rfc5798
- 4.Stretch, J.: RFC 5798 Brings IPv6 to VRRP. Article on Packetlife.net (March 2010)Google Scholar
- 5.The Strategic Network, Cisco Systems whitepaper, C11-676296-00 (July 2011)Google Scholar
- 6.GLBP - Gateway Load Balancing Protocol Cisco Documentation, http://www.cisco.com/en/US/docs/ios/12_2t/12/_2t15/feature/guide/ft_glbp.pdf
- 7.Vyatta.org Community Website, http://vyatta.org/