O'Reilly logo

Cisco CCNA Routing and Switching ICND2 200-101 Official Cert Guide by Wendell Odom

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

GLBP Concepts

ImageLesson 3: GLBP

ImageGLBP Operation

HSRP and VRRP, which were introduced before Gateway Load Balancing Protocol (GLBP), balanced the packet load per subnet, as shown in Figure 6-7. However, because traffic loads vary unpredictably from subnet to subnet, Cisco wanted an FHRP option with better load-balancing options than just the per-subnet load balancing of HSRP and VRRP. To meet that need, Cisco introduced GLBP.

GLBP balances the packet load per host by using an active/active model in each subnet. Each GLBP router in a subnet receives off-subnet ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required