GLBP is a Cisco proprietary default gateway redundancy protocol. It provides the load balancing between virtual routers without using any trick. “Default gateway load balancing with HSRP and VRRP is a trick of multiple groups.” GLBP uses one router as an AVG and up to 4 routers as AVF. Every host sends the ARP request… Read More »
Cisco provides the feature of power redundancy on most of high end Cisco devices like 3650 , 6500 and 4500. These devices having the option of two PSU (Power supply unit) on single chassis. But both PSU should have input and output ratings. Power redundancy can be configure in two ways: Combined mode and Redundant… Read More »
PoE stands on power over Ethernet. It is used to provide the DC power over Ethernet cable through switch port. it can provide maximum 48 V DC over Ethernet cable that is applied from a power capable switch. A switch can offer the power to IP phones or to any powered device that can request… Read More »
OSPF graceful shut down feature is introduced in OSPF version 3. It is used to shut down The OSPF on a particular interface or to shut down an OSPF neighbor-ship. It is the same as we can do in BGP. Using this feature we can disable the or shut down the OSPF on interface. OSPF… Read More »
OSPF fast hello is used for fast OSPF conversion. it is supported from OSPF version 3 (IOS XE). OSPF fast hello packets means , hello packets will be send at the interval of less than one second. We can configure it by using below command: Above command will be configure on interface as you can… Read More »