We have a small hosting company (currently 24 racks) that we are expanding to hold 100 racks. We have several 3640 series routers behind a 7200 series router (our edge router) that feed into numerous 2950 switches and 515 & 525 pix firewalls then into the racks with customer supplied switches within the rack. I want to replace all the 3640 and 2950 switches with a 6500 series switch. The only routing we do within the 3640's is subnet routing to the switches which make up individual networks for each customer. My goal is to use the 6500 switch to limit bandwidth for each port feeding a customer and to eliminate all but the 7200 router and the 2950 switches. Does anyone know of a reason or reasons this would not work or if it's just a bad idea. Looking for pro's and con's,
I have set up a file/print server using samba on my home network that just uses a simple 4 port linksys router, so I'm relatively familiar with routers.
Its my understanding that a hub, is kind of like a router but w/o a "to modem" spot. So you would use a hub if you just wanted to connect some computers to have a LAN party or something, right? Where there'd be no internet connection. Is this correct?
As far as switches, I get the feeling they are like routers, only better? Because data centers and companies mostly use switches, not routers? Or am I way off? What exactly is different between a switch and a router.
As a supplamental question- I will be starting college next fall, and a friend of mine said that dorm students are not supposed to use routers, but rather switches. Any idea why this would be the case?
And also, along the lines of college networks. Say I wanted to take my server with me to my dorm, how would that work? I know this depends on the university, but how would such a large network like that work- would each dorm have its own public IP address? Or would the dorm have one public IP, then each room have an internal IP? Sorry if this is a dumb question, I've really only worked with simple home networking
i am thinking about upgrading things at the colo soon and am looking for some comments.
my current configuration is like so:
my bandwidth is delivered over fast ethernet and it is plugged straight into a cisco 3550 switch. i have the ip range they have assigned me cut up in to vlans the way i need.
i snmp poll the switch for traffic statistics with rtg.
this works fine, im only working about 10mbit avg so no biggie.
well, i am considering picking up another provider (super cheap cogent) to adding it to the pile. i want to get bgp setup and have my own address block assigned by arin (unless my carrier now lets me announce their address space out cogent). getting a ASN isnt a problem, and i have done some tinkering with bgp in the lab.
so anyway.. i am having a bit of a time figuring out what would work better for me, a 7200 series vxr router or a 4500 series catalyst. what would be the pros and cons of either one?
I am having a big question which has been often asked, but which all the time depends on the network topology; so first let's be honnest :
- I have no experience with BGP / OSPF - I have no experience with routers (except SOHO models - I will not have to make this to work in a productive environment
So in the next month we will get an AS number and few IP addresses; the goal is to test drive a gigabit network before using it as productive network;
I would like to ask some advices here for early all aspecsts, let's show some important points :
- Which brand? - Which model? - Maybe refurbished?
The key points for me:
I am looking for a cheap chasis but extensible with time when it will be needed
- Extensible system - Very cheap for small use (at beginning maximum $ 2-3k) - Trafic rate : ~ 100 MBit/s to 4-5 GBit/s - Type of trafic : HTML / JPG / GIF / PNG / CSS / EXE / ZIP (shared hosting network)
getting my own AS number, but this seems to require also a router. I don’t really have a strong knowledge of routing, just basic knowledge.
As I think I understood, I have two possibilities for routing, to buy a ready-made router (Cisco, Juniper, Nortel,…) or to simply setup a simple box with Linux or BSD OS, some NIC and use a software such as Zebra, Quagga, etc…
So my question is :
- Is it possible to use for professional purposes a BSD box with Zebra ? - What is entry price for a good Cisco router (approximately) ? - Does BASIC routing setup requires a very strong knowledge ?
In case this would became concrete soon, people answering could maybe get some paid work doing this for us.
I regiested a IP address from one company and I can post my website on internet. that company give me an IP address someting like: 167.23.42.100. Right now My internet speed is very slow, I want to reset my router. If I reset my router, router will produce a new IP address, Does this IP address is same as 167.23.42.100. IF i reset router, do i need to change my website address. I am worry that resetting router will affect my website address(domin name).
Maybe router IP is different as doman name. so I don't need to worry about
I am looking for a good router which will handle two separate WAN connections and bridge them together. Basically, we have DSL at our office (1.5mbps down / 769kbps up), its the only service we can get, cable is not offered, and a T1 inst fast enough and costs too much. We require a faster connection, doing Skype, VPN connections to servers, desktop sharing etc.
Basically we want to order another DSL line 1.5mbps down / 768 kbps up and join it together with our current DSL connection for a total of 3mbps down/1.5mbps up.
Just want to make sure this is possible and if you guys can recommend a router brand and model. To clerify, we don't just want redunacy/fail over, we need to utilize both DSL connections at the same, as if they were one.
I need 1U of space, .5 amp (50 watts) power, one IP, 2.5mbps bidirectional bandwidth (total of 5mbps up + down) and about 10GB of traffic per day each direction (total of 20GB up + down). Would be nice if they have remote KVM along with console (serial) access. Location should be anywhere in USA.
Purpose is to host a VPN router for various remote locations to connect in to. Reliability and good connection (low latency) is important.
We are looking for a good multiple WAN router for our office. We just ordered two DSL 3.0mbps down / 768kbps up lines.
Here are the requirements:
--> Under $500
--> 2 WAN Load Balanced And Fail Over Support
--> Smart enough to handle special session state traffic. Example, if you start a HTTPS session on one DSL line it has to stay on that line. If you start an FTP session connection on one line it has to stay on that line.
--> VPN Tunnel Site-To-Site Support, Only need a max of 1 site-to-site tunnel, but nice to have more just in case.
i got one fully managed ip range from my isp around 256 ips to use on my networks. Basically i want to set up gateway, segment the 256 ips into two parts, each part with 128 ips. detail below
1, nameserver 123.123.123.2 and 123.123.123.3 3, first part gateway 123.123.123.4 and ip use from 123.123.123.5-123.123.123.128 4, second part gateway 123.123.123.129 and ip use from 123.123.123.130 - 123.123.123.255
what i am using? centos 5.2 with vconfig installed
what i did? 1.i add the name server 123.123.123.2 and 123.123.123.3 to /etc/resolv.conf 2,i add the gateway 123.123.123.4 and 123.123.123.129 to /etc/sysconfig/network and added line" VLAN=yes" 3,i edited eth1 with following setting
We currently have a single 100Mpbs (currently pushing ~40Mpbs) feed from a single upstream provider. Routing is handled by our transit provider.
We wish to provide a more resilient setup and are now looking to install our own BGP router(s) and take a second feed from another provider. I have a looked around the Cisco website and this forum but am unsure which model of routers / layer 3 switch we should be looking at.
A layer 3 switch looks more cost effective but doesn't appear to support enough routes for BGP without great expense. Would a 2600 router be enough or should I be looking at something higher like the 7600 series?
The network will be designed like : we have 3 providers of IP transit, one will be the main network while the two other will feed the first network and manage a highly available network, probably using protocols like BGP4 and OSPF.
The current size of each fiber is 45 Mbit/s per operator. So I am looking for :
A router : - able to handle each provider with up to 200 MBit/s in/output - able to support protocol such as BGP4 or OSPF - able to output snmp for monitoring - have a little intuitive GUI for basic operations and have a real routing OS (like IOS or JunOS) - is branded and warrantly (a plus would be hardware extensible) - not too big box, something between 1 and 6U
A firewall : - able to handle ALL the traffic to all carrier - able to work as a SPF (drop all, allow only what I want, very accurate rules) - have a little intuitive GUI for basic operations - not too big box, something between 1 and 6U
About brand, most probably about Cisco, Juniper, Extreme or some good brand.
Which model would you advice me as router and which as firewall ? The price is not the main proccupation until it will do job just fine, but I would prefer to don't buy too expensive also.
We have a project in mind and we are planning on using a Cisco 7140 to push about 80Mbps over ethernet. Do you think the 7140 will be enough or it will get maxed out? (the 7140 is supposed to be like the 7200VXR NPE-300).
The routing would be thorugh BGP with partial routes.
1) I was recommended to chose the XL-EN model switches because it seems they have more Memory, but the second one in the list (Catalyst) is not a XL-EN, is that going to have any affect performance wise? or it doesn't really matter?
2) I was also recommended to choose managed switches because that way I can use the SNMP features to measure bandwidth, are any of the switches above unmanaged?
3) I also want to be able to manage the switch remotely, web managed, are any of the switches above web-manageable?
4) Most importantly, when my datacenter give me a 100mbit drop, I dont know which port to plug it in in the 29** series. In the 35** I see it clearly but I am not able to see it in the 29**, any ideas?
5) On some of these switches I see a special port called "Console", what is it? where does that connect to?
6) Do any of the switches above not have a console port?
I have decided to finally remove all my servers rented from provider to provider to one single place.
I want to manage everything, so basically route the traffic (at this time without BGP or OSPF), my current average of traffic for all servers together would be about 15 Mbit/s with top at 35-45 Mbit/s.
I want to buy a cheap router (no computer router), I'd like to buy a chassis with very extensible and upgradable router, so I can start with a basic card and later use BGP (and maybe OSPF) and have ability to push from 30 Mbit/s (to over 1000 Mbit/s by upgrading cards and memory).
So, which (refurbished or not) chassis can I buy ? Which card would you setup with it ?
The important is really the ability to start with low cost configuration and go up to very high rates without having to change all (of course once I will be average over...).
I hate to ask this, because I bet it's been asked many times before, but I want to start a little class teaching web development at a local night school and I wanted to set up a LAN using my laptop, CentOS, and a wireless router.
The idea is to have the students develop their pages and download files and get used to the idea of what a server is.
I see about ten students sitting in a room, popping open their laptops, logging onto the network, and then pointing their browsers to a certain IP address which would be the home page for the class.
If this is possible, can anybody point me in the right direction to teach myself how to do it?
I'm buying Cisco ASR 1000 router that should handle 2 Gbps bandwidth. Please advice on components, models, etc.
I have a vendor, but I'll appreciate any reference, based on your experience, on where to buy one at reasonable price. I think I can probably get refurbished ASR 1000 or similar as well, if the vendor can guarantee the quality of the device.
We're building out a small setup for a client, and we're wondering what's a recommended L3 switch on a budget? Basically, we're going to be colocating in a rack with about 12 servers & a 100 mbps drop, and won't really be doing any major bandwidth (less than 10 mbps).
The datacenter was saying something about a /30 handoff for the C class of IPs they're going to be allocating to us. They also said they will NOT handle any Vlans for us, and will just basically handoff the IPs and we will need to route to them and do our own vlans.
One thing we need to be able to do is route additional IPs to servers if a client orders them. We were recommended a 3550-24-EMI by a friend, it seems old but if it does the trick, it works. One thing I was reading about it though was PVlans and the 3550 not supporting them. I don't think we'd need PVlans in our setup, just basic 1 vlan per client.
Is there a list somewhere of what the various hostnames one sees when running a traceroute?
Some are obvious, but quite a few aren't.
I come across car1 and car2 a lot, but can't quite figure those out.
(Example: gigabitethernet6-24.car2.bos1.Level3.net -- the "gigabitethernet" is obvious, as is bos1 (Boston). But car2? And it shows up towards the other end: ae-31-89.car1.Washington1.Level3.net. (Bonus: what's the "ae" at the start denoting?)
csw, ebr, mpr, and ash are all common followed by a single number, too. (pos and tge show up on RCN a lot.) cr, dcr, ecr, hr on Savvis?
I'm thinking about adding a linux based router to my cabinet. I have 8 computers so I'm not looking for anything that's tricky. In fact some of this is just for my own education as to what routers can do.
The biggest feature that's important to me is ease of use. I want something that I can configure from a web based menu. So what linux based router software is the easiest to use and most educational?
Also - I dealing with about 30mb 95th percentile traffic. Peak is 100mb. Would a box that has and AMD dual core CPU with 8 gigs of ram be a good enough computer to run on?
We are starting to bring a few servers in-house rather than leasing them. We decided to do it ourselves for our email server and a few others. We are starting with a 15mbps commit on fiber (via ethernet hand off), and don't plan to exceed 20-30 any time soon, but if we did we need remove for expansion on equipment.
What Router/Router Series would you guys recommand for a small budget friendly project, but more importantly something that is very stable? I'm pretty tech savvy, however easy to configure and maintain will be high up on the list....
Also what switch brand/series would you recommend that are cost effective and can handle a decent load?
I'm in the process to setup a new service with an ISP with the following scenario and need your help.
I've got the rack (42U), servers and switches. Only routers has been left and here is that I need your help.
I have also 2 ports from the ISP where I can connect my routers. I need to get 2 router devices with auto sync feature in order to be able to setup a redundant plan in case that one of them goes down.
Those routers should have firewall features too in order to avoid setup iptables rules for each server. A basic DDoS protection is needed too.
I'm going to push around 100Mbit of traffic across the servers but that will happen after 3-4 months from the initial setup. In the first instance no more than 10-20Mbit will be used.
I heard a lot about Cisco but got no idea what model is the most suitable for my case. I will probably need a module for DDoS attacks and another one for advanced security IOS from what I read but it is not clear to me.
