I am planning to get a comcast cable connection, and need to buy the correct router/modem.I currently have the following items on my home network desktop,netbook,ps3 Of the 3 only the desktop has a wired connection.Can someone recommend both a router/modem that are supported by comcast, preferably a 2&1 option.Oh By the way I will only be running a 6mbps connection so I shouldn't need anything fancy and would like to spend less than $120 if at all possible.
I wonder if Cisco 1000BASE-T SFP can work with CAT-6 cable. I believe it can. But in the Cisco datasheet, it only mentions that “The 1000BASE-T SFP operates on standard Category 5 unshielded twisted pair copper cabling of up to 100m (328 ft) link length”.
At home I have a Cisco 877 router, I also have Optus Cable internet and Telstra Business Direct DSL. I have configured the ATM interface for the Telstra DSL connection through the onboard DSL interface. I have also configured Fast Ethernet port 0 as a vlan2 port, which is configured for use with the Optus Cable internet (this is connected through an Optus Netgear CG3000 router). The Nethgear has DHCP enabled (192.168.0.xxx range), as does my Cisco 877 (10.0.0.xxx range).Firstly, the Telstra Business DSL is due to be connected tomorrow between 9am and 1pm, so it is not physically connected as yet.From my laptop connected to fa3 and using Console connection, I can ping all of the 192.168.0.xxx addresses that exist, as well as my own laptop and a VoIP phone I have connected to fa2 (laptop is 10.0.0.100, VoIP phone is 10.0.0.101 both DHCP assigned, not MAC Reserved either).I can use internet explorer on my laptop to connect to the Netgear router, but no other internet pages. I also cannot connect to my Fuji-Xerox printer at 192.168.0.20 through the web browser, yet I can ping it from the router.I don't have a huge experience with Cisco as yet, and everything I have learnt has been basically self tought. I am looking into doing my CCNA, once I achieve enough funds Now, what I am trying to achieve ideally is, to combine both the Cable and DSL services to in effect double my speed? if this isnt available, a load-balancing type of scenario would also be good. Both DSL plans have a 500gb download limit, but the reason I needed the Telstra DSL is the VoIP phones I am using won't connect through Optus (Optus have locked nearly everything out), and Optus will not give me a STATIC IP address with the Cable, whereas I have on on the Telstra DSL, I would like to Remote Desktop into my main PC eventually.
The IOS on my router is: C870 Software (C870-ADVIPSERVICESK9-M), Version 12.4(6)T7 The Optus Cable Modem IP is 192.168.0.1, the Cisco 877 router IP is 10.0.0.1
The current config (complete, with username & passwords ### out) is below: (Bear in mind there's probably many things thats not needed.Once I get the router working, I will configure my 2960 switch and have all devices connected through this. All devices on my network do not need to stay in the 192 range, they can be 10.0.0.xxx. The DHCP could be disabled on the Netgear (Cable Modem) if that's required as well.
I purchased an old cisco 831 for practical studies for a cisco certification. I purchased the console cable (serial/rj45) and a usb->serial converter cable. However when I open my terminal application (tera term) After I select the right com port (3) and make sure the connection settings are right. It will just sit idle and not show any data from the device. Was I sold a faulty device? It lights up and has three lights on.
Everytime I look at a manual or cisco video I am given the impression the terminal application will just automatically connect. But whenever I try I get nothing.
We have a new building, and I told the cable company run OM3 cable from second floor to 1st FL data closet because we have 4510R SupV-10G at each floor.However, the cable company ran a regular fiber cable instead of OM3 mistakenly. My questions, can I still use OM3 patch cable?? Second questions, can I still have the 10Gig performance??
I just recently purchased a Linksys WAG320N and replaced a setup with Linksys AM200 modem and a good ole Linksys WRT54GL. Problem is that after the switch i immediately got around 100 KB lower transfer speeds no matter what source i use or kind of transfer i perform. If i earlier got for example 860KB/sec i now only gets 760KB/sec.I´ve set the modem/router up pretty much using the default values, are there any settings i could change to get a more efficient use of my bandwidth? I am using the provided network cable that came with the WAG320N, but i have also tested with other cat 5 cables. The file transfers are taking place using cable attached devices only.
I'm connecting the two devices above and I need an LC to SC fiber cable. It should be pretty simple but I've seen two different types of LC/SC cables - one is 8.3/125 and one is 62.5/125. I believe the 62.5 is an older cable type but when looking at the detail sheets for each of the SFPs I see that both of these support a 62.5 or 50 micron core size.
According to documentation Cisco RPS 675 should have support for Cisco 3750v2 switch(WS-C3750V2-48PS).What kind of cable should be used to connect them?Cisco RPS has 16 pins and 3750v2 has 22 pins.I could not find that type of cable,
I have a cable modem with my 2600 Router and i have a little speed problem when I'm going out to the web via my F0/0.. according to regular speed test sites my speed is around 20mbps but when i hook up to my modem directly i get a solid 40mbps.. now I've changed my Cat 6 cable from my modem to my router and this are my settings in the router.
[Code] ...........
I see some drops and lost carriers but not sure what those might mean?
I'm trying to configure a disco router 2600, my internet connection is via a cable modem. I get a dynamic IP from the cable modem but when I ping to any external IP I have errors.Copy show config and show interface f0/1
GUEST#show config Using 1103 out of 29688 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption [ code]...
I have a WS-X6816-10G-2T module with X2-10GB-SR modules. I will be getting a SMF hand off and the length of the termination is around 100 meters. (I will be getting another hand off for Inter-DC link for which I have X2-10GB-LR module). The question is can I connect this SMF hand off (short length) on the SR module?
When i connect two cisco 2960 series switchs via stright trough cable causes delay in transmission sw1 has vlans and having trunk port connected to router all vlans are able to access internet sw2 is connected to vlan5 on switch1 sw2 has factory default configuration computers on sw2 can access internet but I have low bandwith problem on sw2 there is transmission delay problem?
I have two 3750G switches stacked together however it's not in a full ring configuration:
Stack Ring Speed : 16G Stack Ring Configuration: Half Stack Ring Protocol : StackWise
And as shown below it's obvious which cable is not working:
show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 None 2 None 1
It's not flapping - it's like the cable isn't there at all. I'm going to try reseating the cable in there and perhaps an all out replacement if necessary. My question - is there any threat of a reboot of the switch stack or of partitioning of the switch stack by trying to get the 2nd cable working?
I have a Home Virgin media cable connection at home. the only way to get this working with my Cisco gear is by putting the superhub on modem mode.On modem mode, it becomes just a dumb modem assigning and IP via DHCPI can get the switch to get an IP address from the modem with
no switchport ip address dhcp
then I have created
0.0.0.0 0.0.0.0 fa0/48
to route traffic to the port connected to the mode,The switch gets the assigned Ip address from the modem but it does not route internet traffic.
From the different vlans and subnets on the switch, I can ping the modem. From the switch I can ping 8.8.8.8 From the machines, i cannot ping 8.8.8.8
On my machines, what should be the gateway? the vlan SVI, the modem's IP address, The fa0/48 ip address? I have tried them all with no success.
I just completed installation of a stacked pair of 3850s in my datacenter. While I was installing them, I noticed that the lights on ports 1-8 on one of the switches were on solid even though there were no cables connected to that switch. I don't see anything in the logs or anywhere else in the CLI that indicate a problem, however the lights remain on. This only happens on switch 1, not switch 2. Once I plugged the cable into port 1, it flashes normally with activity, but 2-8 remain on solid even though nothing is connected to them.
Before I put the switches in place, I had configured them at my desk with the console connection, and those lights were not lit up.
The indicators on the front of both switches are set in STAT mode. I thought initially I had hit the button and flipped it to a different mode, but that is not the case.
I just recieved a new 3560-x switch with the C3KX-PWR-715WAC. It looks like Cisco is now using a different AC power cable. Not the StackPower connector, but the standard AC power cable. My data center is setup to supply 208v using C13 power cables. The switch uses a C15 power cable, and comes with a standard NEMA 5 to C13 power cable. Does Cisco make, or officially support a C13 to C15 power cable? Can I still use a 208v power supply with these switches? I'm using an APC AP8861 power distribution unit, see [URL]
I need to connect 4 Floor Building with 4 Cisco 2960 - 48 ports switch each other and it needs to be through a fiber. So all PCs connected to each switch would reach the LAN/WAN from the other switch. (attached is the image here with)
I see that the 2960 has 2 SFP ports each port of each switch should connect each other or how?
My simple question is:
1. What cable / patch code I have to use = Single-mode or Multimode? ( distance for each switch will not more then 25 mts)
2. Do I have to use SFP or SFP+ module?
3. What kind of SFP/SFP+ module I have to use = Single-mode or Multimode?
4. What kind of connector should patch code have = LC / SC or ?
5. How to connect each switch with redundancy like ...each switch should be interconnected with each other or I have to choose Cisco 3750G which has more then 2 SFP ports (option#1 & opetion#2 = attached here with) =
Best practice for connecting cisco switches over fiber.
I have a good working knowledge of TCP/IP networking. I have a Cisco 3660 router I'm wanting to use in place of a WRT54G router with my Charter cable internet service. I saw a youtube video where a guy demonstrated how to use a Cisco 2600 series router with home broadband service. I followed the video to setup my 3660 router. I can ping the LAN side (192.168.1.1) with no problem, the DHCP functions as it should. I can see activity on the on the WAN port indicator but no internet access. I have attached .doc file that shows the "sho run" info. My network will be setup as follows Charter Cable Motorola Surf Modem - ethernet to MM fiber converter - MM fiber over to Sun Microsystems cabinet fiber closet - MM fiber card (on Cisco 3660 router FA6/0 WAN interface) - LAN interface FA0/0 - Cisco 3524 managed switch. One of the gigabit MM fiber ports on the Cisco 3524 feeds a 3Com Superstack 12 port gigabit fiber managed switch. My two Dell 2950 servers will be on the Superstack gigabit fiber backbone. The Cisco 3524 10/100 ports will have a Cisco access point, two IP addressible battery backup units, two Dell Desktops, and a LG Blu Ray player.
I have two Cisco 48 port Catalyst 2960-S series SI. Instead of buying the pricy stack modules can I only use the SFP+cable to connect them as stack? which type of SFP+cable should I buy? do I need any license to use those SFP ports?
I am planning on implementing a mode-conditioning patch solution along with LX/LH SFP's over multimode fiber in my network. I wanted to know if this solution is also supported by the G5486 Gbic's, ie, can I use the 5486 GBIC along with a mode-conditioning patch over multimode fiber as well?
specifying Cisco devices and I've made an error.I have 2 Catalyst 2960S switches (C2960S-24PS-L).Based on this snippet of web copy from the Cisco website:What's new for the Cisco Catalyst 2960-S Series Switches with LAN Base Software: # 10 and 1 Gigabit Ethernet uplink flexibility with Small Form-Factor Pluggable Plus (SFP+), providing business continuity and fast transition to 10 Gigabit Ethernet I bought a cable assembly "SFP-H10GB-CU3M" (3 meter copper twinax cable with 10GB SFPs on each end). Unfortunately, it appears after more careful reasearch that my specific model 2960S's are not directly compatible. , can I force these 10GB SFPs down to 1GB and get them to work with my switches or do I need to return and repurchase?
I have a customer who is having some issues with 5m passive HP twinax cables, 537965-001, with a Chelsio 10G NIC. Aside from NIC driver issue, if NX-OS recognizes this SFP+, should it be expected to work in a 5020 running 4.2(1)N1(1)? Whether Cisco has certified passive HP twinax cables? I have included output to 'transceiver details' to a Cisco twinax and the HP (WL GORE) cables.
Nexus5020# show interface eth 1/7 transceiver details Ethernet1/7 sfp is present name is CISCO-MOLEX type is SFP-H10GB-CU3M
I have a problem connecting a PC in a TwinGig Convertors (GLC-LH-SM). I want to connect a PC with a fiber cable on the supervisor WS-X45-SUP6L-E of my Switch 4500E.
The default configuration mode is X2. As I want to deploy Gigabit interfaces (that is, use TwinGig Convertors), then I configured the associated port-group:
Switch(config)#hw-module module 1 port-group 2 select gigabitethernet *Feb 24 06:18:37.125: Port Te1/2: TwinGig Converter inserted: vendor: CISCO Switch(config)#do sh int status mod 1 Port Name Status Vlan Duplex Speed Type
[code]....
I noted that the Swicth set up automatically 'switchport mode trunk', so i put the command 'swicthport mode access' because i want to connect only a PC. But the status is the same, I can not achieve connectivity. i just want to know how connect a PC in the interface GigabitEthernet1/4 of the supervisor engine of my Switch.
I am with Virgin media and have a home lab (2611 routers, 3550 switches, 2950s etc) which i usually just use for testing things on and practicing.
Now I tried to connect it to the internet and got some weird things happening.
I got NAT and DHCP client all setup correctly on the router (or so I think!) along with DNS settings but I still can't get Internet access.
My network is all setup right so that through using OSPF the router is the gateway (0.0.0.0 route) for all devices. Doing a traceroute confirms this.
Yet I never get any further than the router? I see IP nat translations ticking up as I send more requests but never get a webpage or a reply from any of the machines in my network.
HOWEVER... The router itself does get some replies from Google.co.uk and bbc.co.uk but doesn't seem to want to give anything else on the "inside" a response?
Here is a dump of config:
version 12.4 service timestamps debug datetime msec service timestamps log datetime msec
I am relocating UPS units and will need to buy longer power cables to extend from our 4506 and 4510 to the new location.I think I am looking at 15 to 20 feet but I am going to confirm. Is it okay to use longer cables?
I planed to configure a new catalyst 2960 switch with console cable.
During the boot, all seems ok. but from my terminal client, I can't have access to configuration mode.Keyboard or Terminal client is not sending commands to the switch.
The terminal is blocked on this line Compiled Tue 28-Sep-10 13:44 by prod_rel_team.what can I do to get access to the switch? [code]
I am having an issue with my network that has me perplexed. I have a DPC3010 cable modem (Charter internet). I previously had it connected to a Linksys WRT54GL with DD-WRT installed and that was working OK except that I had to reboot it 2-3 times per week. I replaced it with a Cisco 861 (non-wireless) router and it worked OK for a few hours then it started dropping the internet connection (it goes up and down constantly). If I switch back to the Linksys everything works fine again. I am using the same cables in either case so I know it's not a cabling issue. I upgraded the firmware to c860-universalk9-mz.151-4.M3.bin, but it made no difference. I was starting to suspect a problem with the physical ports on the router, but I decided to try connecting the 861 behind the Linksys and turns out it works fine in that setup.
So to recap... If I connect the 861 directly to the modem my internet connection bounces up and down If I connect the Linksys directly to the modem my internet connection is fine If I connect the Linksys directly to the modem and the 861 to the Linksys everything works fine (my PC is connected to the fe0 port of the 861)
Are the 861 and the modem simply incompatible or is it a configuration issue? I have attached my 861 config to this thread.
I just picked up a 24 port Catalyst 2950 to expand my home network and learn a bit more about networking. Having just upgraded the IOS software 'm now trying to get this to work as required on my network but I'm having a few issues.
My intentions are to plug my cable router/modem wan connection which is set up as the dhcp server to fa 0/1, then use fa 0/2 - 24 for the rest of my wired network. So essentially all on the same subnet interfacing with the router 192.168.0.1.
So far I have set up all of the security on the switch, and have all switch ports assigned to vlan1 with no IPs. My laptop connected to fa0/2 however is not assigned an ip address. Looking at a few posts I ahve rightly or wrongly played about with dhcp snooping.
Config Current configuration : 2205 bytes ! version 12.1 no service pad service timestamps debug uptime service timestamps log uptime service (code)
I am troubleshooting a fiber connectivity issue.Now I have two switches, one is 3750, and another is small biz 300 series switch. Both switch has a single mode smf gbic. Now I have two swtiches face to face and connect with a single mode cable. Do you think if I would get a link light on? Both ports are no shutdown.
