Network Proposal Part 2
jeseho
CiscoNetworkProposalPart2_JesseHolmesFeedback.docx
xAcme Technology Trade School Comment by JCB: Please center this on the page
Jesse Holmes
Professor Jeanette Boyd
November 26th 2017
Cisco Network Proposal Part 2 Comment by JCB: This document should include to sites, Worchester and Boston, you have combined the requirements of both sites. Worchester requires subnetting, the range of each subnet in a table, and encapsulation 802.1q configured. Boston requires subnetting, all ranges displayed in a table, a routing protocol chosen and a summarized route advertised utilizing the routing protocol
CMIT 350 7982: Interconnecting Cisco Devices
Contents
Site
The current site which I have been assigned to upgrade in Boston and do the routing, the default routing include Comment by JCB: You wording does not clearly state what you are trying to accomplish. Recommend that you start by describing the Boston network then describe what you plan to do the fix it. For example Title should be Boston Site Configuration (or something like this) The Boston site consist of three (type) routers. The routers will be configured with the x.x.x.x/x. This subnet address will be subnetted to support the current configuration and allow for future expansion. You actually have something below that should be moved up to the introduction paragraph about Boston. I have highlighted it in red. You then want to talk about your intension to utilized the OSPF routing protocol and summarization to improve the network and the value it will bring. Then you can start talking about each. The subnetting would be a good topic at this point because you would have just finished talking about the network and how you intend to improve it. You can now state the subnet address that will be utilize to configure the router and that the subnet will be summarized Next you can talk about the routing protocol and state that the summarized route will be used and why. You can use one of these charts. Why are you using subinterfaces? There is not requirement for VLANs at the Boston site.
3 – 2900 of integrated routers, the routers have four Ethernet cables and are connected to two serial cables. The diagram for the current cabling is as shown below.
Figure 1: Boston site topology
Comment by JCB: All figures, diagrams, and tables must be labeled and referenced in the test.
What is the purpose of the show ip interface brief command?
The site has implemented a routing protocol and the routers have been configured with the default routing protocol.
Proposed solutions and remedies
Routing Protocols
There are three main interior routing protocols: Comment by JCB: You don’t have to describe all the routing protocols, just pick one and state why you chose it. Then show an example of how to configured it.
i. OSPF protocol – This is a link-state classless protocol which is best suited across multi-vendor networks and extensive networks. The protocol can be used in a distance of 110 meters. The routing standard uses cost metric. Comment by JCB: Your formatting is off. Please correct the alignment as I have done here.
ii. EIGRP: The protocol has a working distance of 90m or 170 m when considered externally. This protocol is the Cisco’s premium protocol in terms of the market coverage.
Routing Protocol Benefits
When dynamic routing is used, issues are resolved since there is more automation. If there is a routing update, then the updates are sent to all other routers in the network. Dynamic routing can also do change notification, that is re-routing the traffic around a congested router. It also allows changes in topology and uses a certain algorithm to find the best routes. There is also automatic failover for redundant connections. OSFP works seamlessly across different vendors therefore not limited to Cisco alone. With OSFP network, there are many parts of the network which is organized in different structure. One disadvantage is using more memory, despite this, it remains the best way to deal with IP addressing. RIP can also be used alongside OSFP as it routes the traffic and there is no cost consideration. There will be times that the total administrative cost over multiple hops will equal less than a single hop.
Summarization Comment by JCB: How did you come up with these network addresses? You are required to show the range for each of these networks in a table.
This process will condense the network IP numbers in every location of the network into a larger subnet mask. This is used to minimize the routing tables in IP. The network router interfaces will be as follows:
There are 16 bits shared in common within the first 3 octets. And there are 3 in the fourth octet. In this case the subnet mask used will be/21. The address will not be as follows: 10.10.10.2/24. Boston Router 3 is connected to four networks at its fa1/0 interface. The networks are:
Comment by JCB: Why do you have this chart twice? One can be removed. The route summarization contradicts because in one table you state that the are 16 common bits and the other you state that there are 19.
There are 19 bits in common 8 bits in the first octet, 8 bits in the second octet, and 3 in the third octet. The subnet mask would be /19. The summarized address is: 10.10.0.0/19.
The router will advertise network address of 10.10.0.0/19 at fa0/1 interface.
Default Route
In order to avoid the dropping of the packets, the traffic would not match any internal networks which will be routed to the network. The default network takes the form of a static route. Instead of using all IP addresses in the IP route, all zeros are used and the IP address interfaced through hoping. This informs the router that if the data is not sent, the default route will send it. In any case the router receives the packets; the destination addresses would not recognize the router and will drop all the packets. Comment by JCB: You don’t need an entire section about default routes. You can make a statement after your OSPF section stating the need for a default route. For example: To eliminate the possibility of dropped packet do to routing deficiencies, I will configure a default router. The show and example of how a default route is configured.
Comment by JCB: This is not how default routes are configured;
No routers should have a hostname of Router. You need to change this to BostonRouter 1 or something else.
BostonRouter1(config)#ip route 0.0.0.0 0.0.0.0 10.10.10.2
Or
BostonRouter1(config)#ip route destination address and subnet mask and the next hop ip address and subnet mask
You don’t need all these default routes because you will have OSPF running (dynamic routing) there needs to be one default route ip route 0.0.0.0 0.0.0.0 fax/x
Boston Network Topology(make this your opening statement about Boston) Comment by JCB: This should be used as your opening statement about Boston Then you can follow this paragraph up by stating the ip address ranges you will be utilizing. Next you can talk about the routing protocol that you intend to utilized. This will be followed by summarization because this is when the route summarization will be used. For example Router OSPF 100 Network x.x.x.x 0.0.0.x area x (this will be your summarized route) You will also talk about the value of route summarization at this point.
The current network suffers from redundancy, it has many points of failure and since the routers are connected to single points, for example router 3 are connected to router 1 but routers 2 and 3 are not directly connected. When this is used, then router 2 will not connect to the internet or have a successful communication with router 3. The same applies to router 3 which would lose any connection to other networks or any connection to the router 2. Comment by JCB: Move your topology picture right after this paragraph and refer to it in your statement.
Configuration
In order to maximize the network usage, another router would be used to connect Boston using router 3.
MA 2 would be installed from it to The Boston MA. This will ensure there is a redundant connection to Boston MA through router 1 and this router will be used to alleviate load balancing.
For Boston Router 2, and Boston Router 3we can use any unused addresses from 10.10.0.0/30, to configure Fa0/2 interfaces of both routers.
Recommendations
When reviewing the selected network, there were many critical items which were missing from the site. There were missing services as well. On top of these, there should be security features which should be implemented throughout the Worchester Site network:
· Cisco 4 Catalyst should be installed using 6500 series ad switches to help the current network and help in assisting further growth in the network.
· Configure messages of the day and log in to the network for all the switches in the Boston Network.
· There should be password encryption in the network, secrete passwords should be allowed throughout the network.
· Access control using active directory should be employed in the networks.
· There should be pre-configured hell connections and trucking should be enabled between the switches.
· VLAN spanning tree protocol should be configured with the Boston Switch1 which will have the network improved performance.
· Port Fast should be configured to guard all access ports, this is to enable quicker port convergence and disable all the ports if there is any BPDU detected across the network.
There should be DHCP servers which will provide IP addressing scheme which will also be dynamic. The DNS servers will also provide address translation services to the end users. Access control list should also be configured in the end user devices. Configure access control lists (ACLs) to restrict traffic coming into the Boston site to only that which is desired. Configure firewalls at the core routers.
References [1] N. Abogado, "What Routing Protocol Should Your Office Use?," TALARI Networks, 22 10 2015. [Online]. Available: http://www.talari.com/blog/what-routing-protocol-should-your-office-use/. [Accessed 18 06 2017]. [2] M. Rouse, "route summarization (route aggregation)," techtarget, June 2008. [Online]. Available: http://searchnetworking.techtarget.com/definition/route-summarization. [Accessed 17 06 2017]. [3] "Static and Default Route Command List," TestOut, 2017. [Online]. Available: http://cdn.testout.com/client-v5-1-10-429/startlabsim.html. [Accessed 17 06 2017].
