3-3Features DescriptionPort MirroringPort mirroring copies packets passing through a port to another portconnected with a monitoring device for packet analysis to help implementnetwork monitoring and troubleshooting. This document describes:z Port Mirroring overviewz Local port mirroring configurationz Remote port mirroring configurationIP Services VolumeTable 3-2 Features in the IP Services volumeFeatures DescriptionIP AddressAn IP address is a 32-bit address allocated to a network interface on adevice that is attached to the Internet. This document describes:z Introduction to IP addressesz IP address configurationIP PerformanceOptimizationIn some network environments, you need to adjust the IP parameters toachieve best network performance. This document describes:z Enabling Reception and Forwarding of Directed Broadcasts to aDirectly Connected Networkz Configuring TCP Attributesz Configuring ICMP to Send Error PacketsARPAddress Resolution Protocol (ARP) is used to resolve an IP address into adata link layer address. This document describes:z ARP Overviewz Configuring ARPz Configuring Gratuitous ARPz ARP Attack Defense configurationDHCPDHCP is built on a client-server model, in which the client sends aconfiguration request and then the server returns a reply to sendconfiguration parameters such as an IP address to the client. Thisdocument describes:z DHCP Client configurationz DHCP Snooping configurationz BOOTP Client configurationDNSUsed in the TCP/IP application, Domain Name System (DNS) is adistributed database which provides the translation between domain nameand the IP address. This document describes:z Configuring the DNS ClientFTP and TFTPThe File Transfer Protocol (FTP) is an application layer protocol for sharingfiles between server and client over a TCP/IP network. The Trivial FileTransfer Protocol (TFTP) provides functions similar to those provided byFTP. This document describes:z FTP Configurationz TFTP Configuration