We are going to Connect a branch office with our head office.At present our main office has flat network with IP 192.168.0.0/24.The new branch is within 100 mtrs.I am planning to connect the branch with optical fibre .For my branch I have choose Cisco 2960-24TC-L and for main office Cisco 3560-8PC or 3560-12PC for inter Vlan routing.My branch will have the IP address of 192.168.4.0/24.My questions are..1)Will that be a good solution
2)If in branch we will connect some Unmanaged Dlink or low end switch with the Cisco switch for future user expansiopn, will there be a problem.Please Advice and please sugest me some plan if this is not ok.Our organization is not a big one so justification of return of invest is a factor.
The 3560 should be adequate to provide intervlan routing for the branch and the head office. Your post does not tell us whether the head office has any outside connectivity and this might have some impact on the network design (especially in terms of where default gateways might point and whether some dynamic routing protocol was needed.
But based on the description in this post I believe that a /24 for the head office and another /24 for the branch office, and intervlan routing should be an adequate design.
As far as unmanaged devices are concerned there is always a tradeoff about using unmanaged switches. They are less expensive which makes them attractive in some respects. The fact that you can not configure VLANs on them is not a disadvantage in situations where the traffic is all in one VLAN, such as you describe for the branch office. They generally do layer 2 forwarding pretty well. But they do not provide any ability to do troubleshooting. I had an experience at a customer site where they had a networking problem. Their network had only 1 managed switch and a number of unmanaged switches (most of them daisy chained together). We could tell that something was generating large volumes of invalid traffic. But we had no way to find where it was coming from except to go port by port on the unmanaged switches disconnecting and reconnecting ports until we found the one where the invalid traffic stopped. Following this episode they decided to replace most of their unmanaged switches with managed switches to provide better troubleshooting capabilities. From their perspective the money that they saved by purchasing unmanaged switches became less attractive when compared to the cost of the outage that they endured and the extended nature of the outage because they did not have good ability to troubleshoot it. How does you management think about issues such as this?
thank you for your responces...At present at main office we are having only an leased line internet with 1841 router and ASA 5510.The Soon we will going to connect two branch .One branch is the short range branch that I have discribed earlier post.For Another branch will be connect to leased line with 1841 router .I shall use eigrp routing protocol here.
So--The main branch IP is 192.168.0.0/24
Short Range branch:192.168.4.0/24
P2p leased line branch:192.168.3.0/24
For Leolaohoo-I am planning for redundant fibre connectivity via two different path.Please advice me over this.If you need more details please reply me via post...
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...