A Packet Flow Lab (Networking Systems)

Review the following network map and consider the following scenario and assumptions. A user at Client Workstation A (Client A) enters a request to the Web Server (Webb) in Building B. The Web application uses a client server architecture with the application logic spread across several servers. In order to complete the HTTP request, the application server initiates an Application Request (APP Request) to the application server (APP) located at 128.192.98.53. The application running on APP needs data from the Database Server at 128.192.80.5, and must issue a Database Request (DB Request) to the database to retrieve the needed information. Document the packet flow (all network hops) to complete the original HTTP request and response, including the application server (APP) and database server processing. You may assume the following: CA is an abbreviation for the Client A Workstation that has an IP address of 128.192.98.130. RA is an abbreviation for Building A Router A RB is an abbreviation for Building B Router B RC is an abbreviation for Building B Router C RE is an abbreviation for Building B Edge Router PRX is an abbreviation for the Proxy Server APP is an abbreviation for the Application Server DB is an abbreviation for the Database Server DNS is an abbreviation for the DNS Server SMTP is an abbreviation for the Email Server WebB is an abbreviation for the Web Server in Building B The DNS cache of Client A (CA) is empty. The ARP cache of the Application Server (APP) is empty. Otherwise, you may assume all other addresses are known. You may use the last two octets of the IP address and last four digits of the Ethernet address. All IP addresses have a subnet mask of 255.255.255.0 or /24 in classless notation.

Sample Solution

ACED ESSAYS