FOR KIM WOODS ONLY

CIS 532: Network Architecture and Analysis

Student’s Name

Submitted To

Strayer University

14th May 2016

1. Design a plan to integrate the different routing protocols into a new network design for Genome4U’s lab.

Since for every team, a different project has been assigned, the setup of a separate VLAN should also be provided. This can serve as a logical separation between each of the teams, assuming to tackle different environments. In the figure which has been provided above, the CISCO switches indicate several VLANs that have already been configured. These VLANs have been connected using routers, the EIGRP routing protocol on which has been configured. In general, the router, i.e. EIGRP is internal to the lab. The diagram has two routers, i.e., Router- EIGRP/RIP which is meant to connect the lab of biology and Router-EIGRP/OSPF which connects the lab o fundraising interface. The use of file servers is made to store files containing the data of volunteer (NAS – Network attached storage).

Due to the difference of routing schemes in the research lab, Fund raising lab and Biology lab respectively, one needs to adopt immediately the process of route redistribution (CISCO, 2012). Between the lab of Biology and research, the existing in-between router is responsible for redistribution between EIGRP and RIP network whereas, the responsibility of router located between that of the fund raising office and research is related to EIGRP/OSPF redistribution. Apart from the router placed between that of the lab o biology and fund raising office tends to tackle OSPF and RIP networks for redistribution of routes between them.

2. What information will you redistribute between routing protocols?

The importance of route redistribution lies in the fact that it helps to deal with the diversity present within any of the networks, especially concerning routing. Routing protocols are needed to make the network devices remember routes. However in case of presence of different protocol on different network segments, the importance of redistribution route emerges. To understand this, one can consider the example of redistribution where the RIP learned routes are attempted to be made understandable to that of EIGRP and vice versa. The use of default metric or related techniques are brought into use to do this (CISCO, 2012).

3. Identify the problems you expect to encounter (with different metrics, security, etc.) when you redistribute.

Each of the routing protocols uses different metrics in the response of having completed with deciding the best possible path. Entries as per the metric are also mentioned in the routing tables. The best example to that may be EIGRP under which the use of delay is made. Other than that, bandwidth and RIP also use a simple metric of hop counts. However, the use of the standard default metric is made to assure route distribution. It is even possible to define on the basis of redistribution, any specific metric.

Another potential problem which exists is the occurrence of inefficient routing which may also be referred as convergence issue or unending loop. When the process of learning of router takes place from different protocols, the best route is chosen using administrative distance. However, this may result in the formation of loops. The different routing protocols with different addressing schemes also cause much distress. Hence diversity in addressing schemes makes it difficult to summarize routes.

4. Explain how you will overcome the problems.

To resolve the problem of potential loops and convergence issues, one can rely on changing the configuration on routers. The instructions regarding retaining only the best available administrative distances should be configured within a router. All the other options available should be eliminated. This would certainly prevent looping.

Apart from this, the use of BGP/IBGP can be made for making possible the routing between different network domains (Hares, 2006). The idea that derived the development of this protocol was all related to that of redistribution and inter-domain routing. It can assist best in large scale inter-networking.

5. Explain how you will provide Internet access.

For the sole purpose of connecting the internet, one can connect the lab to that of the university’s network, as displayed in the figure below. The router responsible for the connection of network between that of the lab and the university will undergo redistribution between the protocols of RIP and EIGRP. However, the default gateway must be used by lay to route its packet. Hence it is preferred to keep the distance between the router and the default gateway as displayed in the figure. Through this, the efficiency in internet interaction can be made.

References:

CISCO. (2012). Redistributing Routing Protocols. Retrieved from www.cisco.com: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009487e.shtml

Hares, S. (2006). A Border Gateway Protocol 4 (BGP-4). Retrieved from tools.ietf.org: http://tools.ietf.org/html/rfc4271

Router - EIGRP

Router - EIGRP

Router - EIGRP

Router - EIGRP

Router – EIGRP/RIP

Router – EIGRP/OSPF

CISCO Switch

VLAN -1

CISCO Switch

VLAN -2

CISCO Switch

VLAN -3

CISCO Switch

VLAN -4

CISCO Switch

VLAN -5

SERVER ROOM

File Server

File Server

OSPF/RIP

Biology Lab

Research Lab

Fund raising office

EIGRP/RIP

EIGRP/OSPF

University network