Cisco CCNP Certification / BSCI Test Tutorial: Comparing IRDP And HSRP
To pass the BSCI Test, you have to know the difference between IRDP and HSRP. Although they may have precisely the same essential operate, the operation and configuration of each and every are totally distinctive.
The aim of both equally is to permit hosts to speedily find out a standby router when the key router fails. IRDP is usually utilized by Windows DHCP clients and several Unix versions, however, you do see it in Cisco routers too. IRDP is described in RFC 1256.
IRDP routers will multicast Hi messages that host products hear. If a bunch hears from more than one IRDP router, it's going 먹튀검증 to pick one as its Key and will start off using the other router if the main it’s picked goes down.
HSRP is a Cisco-proprietary protocol that is certainly designed for swift cutover into a secondary router if the primary fails, even so the host gadgets don’t “see” both the first or secondary router. The hosts utilize a Digital router as their default gateway. This Digital router has its very own IP and MAC handle! The many even though, the router picked as the first is really the a person carrying out the routing. If the first router goes down, the secondary router rapidly can take in excess of without big interruption to community expert services.
The HSRP routers connect by multicasting updates to 224.0.0.2, and its by way of these hellos the HSRP routers choose which router is Key and which happens to be secondary. HSRP is described in RFC 2281.
The configuration of each of those might be lined inside of a long run tutorial. http://www.bbc.co.uk/search?q=먹튀검증 In the meantime, I urge you to read through the RFCs outlined in the following paragraphs, and visit www.cisco.com/univercd to read about the configurations and choices readily available for both equally of those very important protocols.