Required Commands for Configuring OSPF Within a Single Area
In this section, you learn to configure an internal OSPF router. An internal router is one in which all interfaces lie within a single area. The sole OSPF function of an internal router is to route within the area. The router needs to understand how to participate in the OSPF network, as defined by the following parameters: • OSPF process— Declare an OSPF process. • Participating interfaces— Identify the interfaces to be used by OSPF. ..
To accommodate bursty data traffic, shapers implement a concept by which, after a period in which an interface sends relatively little data compared to its CIR, more than Bc bits can be sent in one or more time intervals. This concept is called excess burst (Be). When using a Be, the shaper can allow, in addition to the Bc bits per Tc, Be extra bits to be sent. Depending on the settings,it may take one time interval to send the extra bits, or it may require multiple time int..
Intrusion detection systems (IDSs) are designed to detect and thwart network attacks. Based on their location, IDSs can be either of the following: • Network-based IDS (NIDS) Examines or sniffs every packet flowing across the network and generates an alarm upon detection of a network attack signature. • Host-based IDS (HIDS) Examines operating system information, such as logs or system processes, against a base line. When the system de..
Security Policy Best PracticesA Cisco View
Cisco released a number of excellent SAFE blueprints containing security design guideless. The material at http://www.cisco.com/safe is a must read for any IP engineer or designer. Too many organizations have not followed the fundamental crucial step of developing a security policy upon which to base all security strategies. Any network without a security policy is liable to be compromised, because when an event does occur, there are no processes in place to mitigate the eve..
Creating a Traffic Shaping Map Class
A Frame Relay map-class command is used to define and set up the various traffic shaping parameters for use in the feature. The traffic rate enforcement parameters, per-VC queuing, and adaptive shaping to BECN or ForeSight are collectively configured under a Frame Relay map class. Table 5-1 summarizes the Frame Relay Traffic Shaping parameters that are used to manage traffic. Table 5-1. Traffic Shaping Parameters Parameters Definit..
