Connect More Than One Switches In Single Network?
Jan 17, 2013
i have configured my network like below:
I have three lan ports in my server the IP is:
(1) IP: 10.10.10.2 SUBNET: 255.255.255.224
(2) IP: 10.10.10.34 SUBNET: 255.255.255.224
(3) IP: 10.10.10.69 SUBNET: 255.255.255.224
I have given IP as mentioned below to 1 to 30 pc connected in First Switch.
IP Starts From : 10.10.10.5 To IP : 10.10.10.30
Subnet Mask: 255.255.255.224
Gateway: 10.10.10.2
For 31 to 50 Pc in Second Switch
IP Starts From : 10.10.10.40 To IP : 10.10.10.65
Subnet Mask: 255.255.255.224
Gateway: 10.10.10.34
IP Starts From : 10.10.10.74 To IP : 10.10.10.85
Subnet Mask: 255.255.255.224
Gateway: 10.10.10.69
Pc are connected internally in separate switch. but can not connect all three switches & with server. Only Gateway 10.10.10.69 is connected with server.
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Jun 2, 2013
What tools are you using to manage multiple SG300 in a single network ? I can't find any good solutions on the cisco website.
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Sep 22, 2011
i have two LAN 1:=IP10.44.0.76 subnet:255.255.255.0 & gateway: 10.44.0.1 ; 2:=IP DHCP,i want to do work both network. how can its possible.
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Dec 2, 2012
We have a project in which we are using 34 Cisco SG200-18's each with a MGBLX1 (LC Single Mode Fiber) SFP mini-GBIC.All the fiber's come back to one building where we must "bridge" all 34 fiber connections. What hardware should be used to accomplish this? A L2 switch? For example, a 12 port SFP Switch with Fiber SFP's accepting the first 12 fiber connections, then other switch with SFP for the next 12 and so on, until there is a overall capacity of 36 and having patch cables between the 3 switches?
what cisco or non cisco hardware would work with these SF200-18's to accomplish this?
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Aug 23, 2012
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Sep 28, 2012
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Feb 7, 2013
I have an SA 500 with the optional port configured as the DMZ. The LAN ports are running the 192 range and the DMZ is the 172 range.
I have seperate offices (A few hundred feet apart) that have been connected with 2 un managed switches up linked with a single wire. The 192 range stuff runs over this. I need to get the DMZ out to the second room and was asking about how to do this over the single up link and switches. (Trying not to run a second wire)
My lack of understanding had me draw up this diagram attached as a picture, to ask about. What it shows is me trying to get the DMZ through the up linked switches to the other room. I thought of using 2 routers, one on each end. I've been told this is incorrect and wont work.
Maybe a purchase of a second hardware and eliminate the switches? (up link the SA 500 to another device?) What should that device be?
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Feb 28, 2011
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Jan 28, 2011
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Sep 30, 2011
Connecting ASA 5520 to two Catalyst 3560G layer 3 switches. What's the best practice to connect the asa-5520 at the edge, to the core of my network? What I'm looking to do is connect two routed gigabit ports (gi0/2 and gi03) to two seperate layer 3 routed ports on catalyst 3560G. I'm wondering how to do it, or if there's any type of failover method? I'm running EIGRP in the network and the link to the first core switch has a /30 point to point connection. Everything works fine, I'm just not sure how to connect the second switch to the firewall. Should I use the a different /30 for the point to point connection to csw02 gi0/48? (See attachment) How would this affect traffic flowing through this interface? Would I have to duplicate rules I have on my inside (gi0/2) interface? Is there a way to make the inside2 interface standby some how? I want to know the best way to set this up, so in the event csw01 goes down I don't loose internet. Will EIGRP work it's magic and only use 1 path to the ASA? Should I even be using routed interfaces on the ASA and just use trunked mode?Running ASA 8.4?
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Mar 31, 2012
I have six Cisco 300 Series switches in Layer 2 mode. They are all connected using ports in Trunk mode. These Trunks are tagged members of all VLANS.
I have one 300 series in layer 3 mode with IP address assigned to each VLAN.I would like to use one Internet gateway for multiple VLANS. This gateway has numerous IP ports that forward to internal ip addresses on various machines.
All i9nternal clients use their respective VLAN IP as their default gateway.The Layer 3 switch is connected to one of the Layer 2's using a Trunk that is a tagged member of all of the VLANS.
I understand how traffic routes from a client to its respective VLAN gateway. Where I am confused is how it routes from there to the Internet gateway? Internet gateway is 192.168.1.1.VLAN IP's are 192.168.2.1, 192.168.3.1, etc...
Should the Internet Gateway be patched into the Layer 3 switch or one of the Layer 2's using a separate "Internet" VLAN?
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Oct 13, 2011
About a week ago I changed over 9 HP Procurve switches that were previously stacking in series (yeah, daisy-chain) to a Access-Distribution type scenario with 2 (or 4 on server switches) Gb ports on each switch Trunked together connecting to a central full 48x Gb switch.
During this I updated firmwares on all the switches (most still on their shipped 5-8 year old versions) to the latest stable release (and in the process found out that HP switch firmware is absolutely brutal and untested - See ProCurve 2510G FW 11.16 as an example) .
I saw vast improvements across the network immediately after the change (wow, really? 9 48-port switches effectively sharing a single 1Gb line to the servers and internet was a bit slow? Don't tell my co-workers, they don't think that's possible ) .
The only thing that I didn't see an improvement in was on some Linux and BSD servers, which would top out at 11MB/s doing a SMB (SAMBA) transfer. These are managed systems part of our business system, but we still need to be able to pull local backups for ourselves. So I contacted our vendor. The vendor confirmed that the line speed is showing as 1000T-FDx (same as the switch is showing).
Vendor is now claiming that after these changes were put in place, the speed on their servers (and their servers ONLY) was reduced to a maximum of 5MB/s (~60Mb/s?) doing rsync transfers between themselves. And they are all on the same 2510 (48 port all 10/100/1000), which makes absolutely no sense whatsoever to me. Furthermore this is on the ONLY switch on the entire network that had an updated firmware already installed - that's not even a possibility here.
I put some windows servers on that switch and can get 60MB/s+ all day (SMB transfers). I've also tried from their one server that I can access to doing an rsync or scp to another BSD box, and max out at 15MB/s (with 100% CPU usage on the test box - I'm assuming the decryption is pretty heavy?)There is absolutely no QoS, limiting, or any possibility of throttling the links the servers are on the switch. There are no excessive broadcasts saturating it, and the ports and cables test fine.
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I'm working with a customer who has an SGE2000P and a Catalyst 2960 to setup and configure a single mode fiber link. The SGE2000P has an MFELX1 fiber GBIC and the 2960 has a GLC-LH-SMD GBIC. When I have the customer plug in his fiber, there is a power light that comes on on the MFELX1 GBIC. Neither GBICs/switches show that a link or activity is occurring, but the presence of that light makes me think that they are connecting somehow. Are these two switches/GBICs compatible?
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I'm looking for switches that support single mode fiber connections and would like to know if "WS-C3750-FS-S Catalyst 3750 24 100BaseFX + 2 SFP" and "WS-C3750G-12S-S Catalyst 3750 12 SFP" can serve the purpose?
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Prior we only had 62.5u multi mode.I've got 3750x switches and new SM SFP and yellow fiber patch cables. None of my links show connected. No lights and trunk port interfaces show down/down.
Is there a special command you have to do on a port when using SM fiber? Do you think I need cross over fibers?
Also, should I be able to see a laser signal light like MM or is SM a different frequency so it's not as visible as MM?
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I am wondering what the cable wires or sockets on the back of this router are for? could it be you can connect through the cable tv network the sockets fit perfectly in the back of the router thats a strange coinsidence dont you think?
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Dec 10, 2011
I bought 3 switches (gs 300-28 ports)and i need to connect them to my network, when all the switches are cisco 3560g, with vtp on the vlans.my question is, how to creat vlans on this switch? and Is it possible to make the gs300 learn the vlans on the 3560g?if he dosent has the vtp client?
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Apr 10, 2011
What i am trying to do is that i have a server in my store which has a running software for the store. I have a TP Link Wifi card installed in my pc.. i need to access the server using an ip through the ethernet cable. And i access the internet via the wifi device installed and running in my pc. the problem now here is that i cannot access both of the simultaneously. If i connect back the ethernet cable the browser does not browse or the internet does not work.. and i can access my server software.. as i unplug the ethernet cable my wifi card installed starts working all good and i can use the internet.. i have tried a little of soultions but have not been successfull enough to use both the connections simultaneously..
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