GLBP provides load balancing over multiple routers (gateways) using a single virtual IP address and multiple virtual MAC addresses. Each host is configured with the same virtual IP address, and all routers in the virtual router group participate in forwarding packets.

2019年7月31日 · GLBP members communicate between each other through hello messages sent every 3 seconds to the multicast address 224.0.0.102, UDP port 3222 (source and destination). GLBP uses 3 different packet types to operate. The packet types are Hello, Request, and Reply. The Hello packet is used to advertise protocol information.

Gateway Load Balancing Protocol (GLBP) is a Cisco proprietary protocol that attempts to overcome the limitations of existing redundant router protocols by adding basic load balancing functionality. In addition to being able to set priorities on different gateway routers, GLBP allows a weighting parameter to be set.

2019年11月21日 · GLBP is a Cisco proprietary first-hop redundancy protocol. GLBP in many ways is the "big brother" of HSRP, it follows a lot of the same design philosophies while adding load balancing and in some places correcting some of the design issues of HSRP. GLBP provides default gateway redundancy and per host load-balancing.

2019年8月9日 · Gateway Load Balancing Protocol (GLBP) is one of First Hop Redundancy Protocol (FHRP) which provides redundancy like other First Hop Redundancy Protocol, also provides load Balancing. It is a Cisco proprietary protocol which can perform both functions.

2024年1月9日 · GLBP uses load balancing mechanisms like – Round robin, Hosts dependent and weighted. GLBP routers use the local multicast address 224.0.0.102 to send hello packets operates on UDP port 3222; Example scenario: GLBP Protocol. Below scenario is helpful in understanding the concept of GLBP and its supporting terms :

2019年3月1日 · GLBP members communicate between each other through hello messages sent every 3 seconds to the multicast address 224.0.0.102, User Datagram Protocol (UDP) port 3222 (source and destination). This feature was integrated into Cisco IOS Software Release 12.2(15)T. Use Cisco Feature Navigator to find the latest information about platform support ...

2023年8月11日 · GLBP provides two basic functions as a virtual gateway protocol quite similar to HSRP and VRRP. It provides redundancy like first hop redundancy and also provides load balancing functionality. It is a Cisco proprietary protocol and unlike its counterparts HSRP and VRRP protocols which work in standby/ redundancy mode for packet forwarding , it ...

2019年3月1日 · GLBP members communicate between each other through hello messages sent every 3 seconds to the multicast address 224.0.0.102, User Datagram Protocol (UDP) port 3222 (source and destination). GLBP works by making use of a single virtual IP address, which is configured as the default gateway on the hosts.

2024年10月17日 · GLBP ensures automatic router backup for IP hosts with a single default gateway on an IEEE 802.3 LAN. It enables multiple routers to act as a single virtual IP router, sharing the forwarding load. If any router fails, redundant GLBP routers automatically take over, enhancing network resiliency and reducing administrative effort.