Cisco CCNP Certification / BSCI Exam Tutorial: Comparing IRDP And HSRP
To go the BSCI Test, you have to know the distinction between IRDP and HSRP. Though they've precisely the same primary functionality, the Procedure and configuration of each are absolutely diverse.
The intention of each is to permit hosts to rapidly uncover a standby router when the key router fails. IRDP is often used by Windows DHCP purchasers and a number of other Unix variants, but you do see it in Cisco http://www.bbc.co.uk/search?q=먹튀검증 routers at the same time. IRDP is defined in RFC 1256.
IRDP routers will multicast Hi messages that host products hear. If a host hears from more than one IRDP router, it's going to pick one as its Key and may begin using the other router if the principal it’s chosen goes down.
HSRP is really a Cisco-proprietary protocol that may be designed for fast cutover into a secondary router if the principal fails, even so the host gadgets don’t “see” both the first or secondary router. The hosts utilize a virtual router as their default gateway. This Digital router has its personal IP and MAC deal with! All the while, the router preferred as the key is definitely the 1 doing the routing. If the main router goes down, the secondary router speedily requires over with no major interruption to network companies.
The HSRP routers connect by multicasting updates to 224.0.0.two, and its via 먹튀검증 these hellos the HSRP routers pick which router is Major and that's secondary. HSRP is defined in RFC 2281.
The configuration of every of such are going to be included in a upcoming tutorial. Meanwhile, I urge you to definitely examine the RFCs mentioned in this article, and take a look at www.cisco.com/univercd to examine the configurations and possibilities readily available for equally of such vital protocols.