OSPF is a link-state routing protocol, it runs over IPv4 and IPv6, but does not use a transport protocol. It encapsulates its data directly in IP packets with protocol number 89. This is in contrast to other routing protocols, such as the Routing Information Protocol (RIP) and the Border...
If OSPF is not bound to BFD, the link fault detection time is determined by the Hello mechanism and is usually in seconds. BFD can be bound to implement millisecond-level fault detection. BFD for OSPF associates BFD with OSPF. BFD notifies OSPF of the fast detection result of a link fault...
Firewall security policies are also called firewall rules and firewall policies. This document describes the definition, composition, configuration, and matching principles of security policies. Firewall Security Policy: What It Is and How It Works Firewall Security Policy: What It Is and How It ...
The following figure shows how a BFD session is created when OSPF and BFD are used together. BFD session setup In this figure, OSPF and BFD are both configured on SwitchA and SwitchB. The process of establishing a BFD session is as follows: ...
Hello everyone,This article will show you what APIPA is and how it works.What is APIPAAutomatic Private IP Addressing (APIPA) is a DHCP that protects ...
In the DIS election procedure, IS-IS is different from OSPF in the following aspects: The router with the priority of 0 also takes part in the DIS election. When a new router that meets the requirements of being a DIS is added to the network, the router is elected as the new DIS. ...
Bidirectional Forwarding Detection is used with many protocols for link failure detection. These protocols are: Static routes IGPs (OSPF, IS-IS) BGP (eBGP, iBGP) LDP RSVP Disadvantages of BFD Beside the advantages of BFD, it has also some disadvantages. First of all it can have more resource...
AOSIP AOSIS AOSJ AOSL AOSLO AOSM AOSMA AoSMT AOSN AOSNW AOSNY AOSO AOSOA AOSOS AOSOT AOSP AOSPC AOSPF AOSPI AOSPL AOSPR AOSPRM AOSR AOSRA AOSS AOSSD AOSSM AOSSP AOSSS AOST AOSTC aostf AOSTH AOSTRA AOSVS AOSW AOT ▼
The Open Shortest Path First (OSPF) protocol is used only in internal networks. OSPF focuses on finding the shortest route available between nodes and on failing over to that shortest route as quickly as possible. BGP works well for internet redundancy, WAN environments and IaaS. OSPF is useful...
Dive deep into the OSI Model to understand its seven layers, their functions, and how it defines the networking framework to implement protocols in seven layers.