What is HSRP? Â What is the difference from EIGRP? What about BGP?Â
HSRP, and EIGRP difference and similarities
HSRP:
HSRP (Hot Standby Router Protocol) provides network redundancy for IP networks. It ensures user traffic immediately. Protocol protects the first hop router from failure when source host can't learn the IP address of the first hop router. HSRP is used for broadcast capable LANs and multi-access.
Single router is selected from HSRP group. It is responsible for forward packets to virtual router. This router is called active router, then another router is selected from group. This router is called standby router. The active and the standby routers are used to send HSRP messages so network traffic are minimized.
Difference between HSRP and EIGRP:
EIGRP (Enhanced Interior Gateway Routing Protocol) is IGRP enhanced version. EIGRP is a network protocols. Using EIGRP routers can exchange information very easily. EIGRP used for IP (Internet Protocol) networks, Apple Talk and NetWare networks.
Opcode for EIGRP:
Update,
Reserved,
Query,
Hello and IPX-SAP.
Opcode for HSRP:
The following type of messages is contained in the packet.
0 – Hello,
1 – Coup,
2 – Resign.
BGP:
BGP (Border Gateway Protocol) is an inter-Autonomous System routing protocol.
Primary role of BGP is an exchange the routing information between gateway hosts.
BGP is a recent protocol than EGP (Exterior Gateway Protocol).
BGP is easily communicated with local networks using IBGP.
Thanks.
HSRP, and EIGRP difference and similarities
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HSRP stands for Hot Standby Router Protocol is a Cisco proprietary redundancy protocol for starting a fault-tolerant default gateway. The protocol establishes a framework between network routers in order to achieve default gateway failover if the primary gateway becomes inaccessible, in close association with a rapid-converging routing protocol like EIGRP or OSPF.
EIGRP stands for Enhanced Interior Gateway Routing Protocol is an interior gateway protocol suited for many different topologies and media. The EIGRP operation has many advantages and some of them are:
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Rapid convergence times for changes in the network topology [in some situations convergence can be almost instantaneous];
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Very low usage of network resources during normal operation; only hello packets are transmitted on a stable network;
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When a change occurs, only routing table changes are propagated, not the entire routing table; this reduces the load the routing protocol itself places on the network.
It is an enhanced distance vector protocol which relies on the Diffused Update Algorithm or DUAL to analyze the shortest path to a destination within a network.
Border Gateway Protocol or BGP is a protocol for exchanging routing information between gateway hosts [each with its own router] in a network of autonomous systems. It is often the protocol used between gateway hosts over the internet.
