Cisco Routing :: 3750x - Installing Single Mode Fiber / Switches Not Connecting?

Oct 22, 2011

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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Cisco Switching/Routing :: 3750X / 6509 - Trunking Over Single Mode Fiber

Oct 26, 2011

I'm having a problem with some new gear and can't seem to figure it out.  I have a 3750X-48P-S with a C3KX-10G-NM using SFP-10G-LR transceivers and I'm trying to trunk that with a 6509 that has a X2-10G-LR transceiver over single mode fiber.  This is not working.  Cisco TAC says the SFP+'s that we just got brand new are both bad and we need to order new ones.  I find that hard to believe but who knows.
 
The switch recognized the module and I tested all 4 ports in gigabit mode using GLC-SX-MM transceivers, all worked great.  I have the SFP+'s in tengig1/1/1 and 1/1/2 as they should be.  There are no other SFP's in the module either.
 
When I do a sho int tengig1/1/1 and 1/1/2 the media type doesn't show the transceiver that is installed like it does for the GLC-SX-MM ones.  Maybe it's not supposed to or maybe it just doesn't recognize them and it's a hardware issue.

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Cisco Switching/Routing :: 3945 - Connecting To 100M Single Mode Fiber Link SC To LC Conversion

Aug 4, 2012

connecting a Cisco 3945 Router to an Ethernet WAN Link. The service provider has provided a 100M Ethernet Single Mode Fiber handoff to the customer premises with SC Connector. The CPE configuration proposed for this setup is like this. [code]
 
Since the SFP has LC Connector, i suppose i need to have an SC-LC Cable for connecting the Ethernet link. Do i need anything else, apart from above?

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Cisco Switching/Routing :: Single Mode Fiber Support For WS-3750 Switches?

Mar 5, 2012

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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Cisco Switches :: SG200-18 Switches With LC Single Mode Fiber SFP's

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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Cisco Switches :: Single Mode Fiber Link Between SGE2000P And Catalyst 2960?

Jun 4, 2013

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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Cisco Switching/Routing :: 1310NM / SFP-10G-LRM Over Single Mode Fiber?

May 23, 2012

Using SFP-10G-LRM with single mode fiber?  We have 1310nm.

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Cisco Switching/Routing :: WS-X4306 What GBIC Is For Fiber Single Or Multi Mode

Jul 18, 2012

The module  WS-X4306, support  fibber fiber single mode ó fiber multi mode? what GBIC is for fiber single mode or fiber multi mode?

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Cisco Switching/Routing :: WS-C3750-24FS-S 100baseFX Ports Will Not Work Over Single Mode Fiber

Feb 8, 2012

We've just purchased a WS-C3750-24FS-S, only to find that the 100baseFX ports will not work over Single Mode fibre, backhaul links. Any way or a device that convert from MM to SM?

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Cisco WAN :: WS-C4948-E Choosing SFP For Single Mode Strand Dark Fiber?

Mar 18, 2013

I have  3  Data centres which I am linking up via Single Mode Single Strand Fibre.The switches at each data centre are WS-C4948-E
 
-Distance between Data Centre 1 and Data Centre 2  is 60km  single mode single strand
-Distance between Data Centre 2 and Data Centre 3 is 70km   single mode single strand
 
What type of SFP do I need to use in each Data Centre for the WS-C4948-E switches for these distances.

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Cisco WAN :: Add Some PA-GE Card With Ws-g5486 To Light Single Mode Gigabit Dark Fiber

May 14, 2012

I have a 7206vxr with a NPE-G1 card in it. I am planning to add some PA-GE card with a ws-g5486 to light single mode Gigabit dark fibre.

 it seems that users are experiencing throughput of around 200Mbps. Is this per card, or for the entire chasis? I have 6 free slots, if i were to fill 3 of them up with PA-GE card would i get 200Mbps on each card ?

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Cisco WAN :: 3750 - Use Two Core Switch 6500 With Single Mode Fiber As Transport Equipment?

Nov 30, 2012

I have a requirement to connect two 3750 switch with 10G speed between two sites with 150km distance. We will lay-out our own fiber (48 core) between two sites. I just want to consult the following:
 
1. Could i use two core switch 6500 with single mode fiber as a transport equipment?

2. Or i need to use SDH equipment because of the distance concern? If so do i need a repeater?Could i use Cisco Metro Core ONS, which one?

3. Any other option to achieve this requirement?

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Cisco Switching/Routing :: Connecting 3750G With DLink Switches Through Fiber (SFP)

Jul 18, 2011

I have issue with connectivity 3750G with Dlink Switch, it cannot connect to non-cisco switch with fiber , But CISCO to CISCO switch it shows connectivity. My question is that is there any configuration on Cisco 3750G switch to connect with non-cisco switch through fiber (SFP) ?

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Cisco Switching/Routing :: 2960 - Connecting Two Switches Using Fiber Cable

May 25, 2013

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.

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Cisco Switching/Routing :: 3750x / Stackpower Switches Show In Standalone Mode?

May 29, 2013

I have a stack of 8 3750x switches connected via Stackwise.  In addition, I have these switches configured as two Powerstacks. When I look at the Powerstacks, they are showing as being in power-sharing mode.  When I look at the individual switches, they show as standalone.   Right now, I have 1 switch in each powerstack that has two power supplies, and then the other three have a single power supply. Below is the output for "Show stack-power detail" as well as the Powerstack configurations.
 
Power Stack           Stack   Stack    Total   Rsvd    Alloc   Unused  Num  NumName                  Mode    Topolgy  Pwr(W)  Pwr(W)  Pwr(W)  Pwr(W)  SW   PS--------------------  ------  -------  ------  ------  ------  ------  ---  ---Powerstack_1          SP-PS   Ring     2145    45      570     1530    3    3Powerstack_2          SP-PS   Ring     2860    60      760     2040    4    4Powerstack_1-1        SP-PS   Stndaln  1430    520     190     720     1    2
Power stack name: Powerstack_1    Stack mode: Power sharing    Stack topology: Ring    Switch 4:        Power budget: 700        Power allocated: 190        Low port priority value: 20        High port

[code].....

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Cisco Switching/Routing :: 3750 - Two Switches Connected With Single Mode Cable

Jun 4, 2012

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.

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Cisco Switching/Routing :: ASA-5525 - Connecting Multiple Switches To Single Firewall?

May 28, 2012

Could I configure and connect 3 Dell switches to an ASA-5525 Firewall which has got 8 interfaces.

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Cisco LAN :: 3945 - Connecting 100-Base-LX Single Mode-LC To SC

Aug 4, 2012

connecting a Cisco 3945 Router to an Ethernet WAN Link. The service provider has provided a 100M Ethernet Single Mode Fiber handoff to the customer premises with SC Connector. The CPE configuration proposed for this setup is like this.
 
Cisco 3945
EHWIC-1GE-SFP-CU      (EHWIC 1 port dual mode SFP(100M/1G) or GE(10M/100M/1G)
GLC-FE-100LX               100BASE-LX SFP  for FE port.
 
Since the SFP has LC Connector, i suppose i need to have an SC-LC Cable for connecting the Ethernet link. Do i need anything else, apart from above?

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Cisco Switching/Routing :: 10 GB Fiber Modules For 3750G And 3750X

Apr 29, 2013

I am working on a project to connect 2 switch stacks via 10 Gb fiber.  I am told that the 3750Xs do not natively receive the 10 GB SFPs.  What part numbers do i need to order to make this work?  Is there any IOS image requirements?

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Routers / Switches :: Connecting And Installing Netgear WNR1000v3?

Jan 5, 2013

I just purchased netgear N150 single band wireless router WNR1000v3. I cant get to the 192.168.9.1 site to detup manually and when i insert the set up CD it scans the config & says that my ethernet adapter isn't intstalled or enabled....I HAVE A CABLE FROM THE SATELLITE MODEM to my computer which works fine when I am connected direcrtly to it, so I dont get what the problem is. Do I need a different cable connecting my computer to the LAN on the router or am I missing something?

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Cisco Switching/Routing :: 3750X - Single Switch Stack?

Mar 8, 2012

I have a 3750X 24 port switch (with NM-1G network module) running IOS 15.0(1). Is there any benefit or reason to plug in the included Stack Wise cable and loop it back to itself in a single switch installation?
 
I don't see any recommendation in the documentation. The data sheet indicates a single switch is a non-blocking device so I'd think there's no bandwidth advantage like there is when connecting an actual multi-switch stack and needing to close the loop for the full 32 Gbps stack bandwidth.

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Cisco Switching/Routing :: SFP-10G-SR With Multi - Mode Fiber?

Jul 10, 2012

Can I use the SFP-10G-SR 10g interface woth Multi - Mode fiber?

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Cisco Firewall :: Connecting Single ASA-5520 To Two Layer 3 Switches?

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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Cisco Switching/Routing :: SF 302-08 Fiber Termination Is Multi-mode LC Duplex

Jan 2, 2012

I am doing an small project, I have to connect 4 cisco switches SF 302-08 (1 GBIC each one) to a core switch SGE 2000 (4 GBICs).  Because of cable length I have go connect all 5 switches with fiber. The fiber termination is multimode LC duplex. My confusion is on the mini GBICs. There is compatibilities issues i been reading. [code]

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Installing Fiber Instead Of Cat5?

Jul 31, 2011

I have a question relating to installing lines underground in a conduit.

We've had several lines get hit by lighting which leads to the line being bad, equipment being damaged and so on. We've then installed a new cat6e cable WITH lightning arrestors which were blown almost instantly on the first storm. This is obviously a bad ground issue, and a risk to the equipment.

This being said, I would like very much to run fiber optic cable in this conduit and then convert it to ethernet, but I don't know if fiber is susceptible to lighting like ethernet cable is, OR if there are other methods to prevent this freak of nature crap!

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Cisco Switching/Routing :: WS-X6816-10G-2 Connecting SMF Fiber Cable To A MMF Port

Dec 12, 2012

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?

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Cisco Switching/Routing :: 3750X / Core Switch In Redundant Mode?

Nov 18, 2012

Two Cisco 3750X can be stacked together to ensure redundancy.Is the attached topology feasible for access layer redundancy?

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Cisco Switching/Routing :: 3560E Connecting A Fiber Between Remote And Main Site

Apr 15, 2012

We have a Site that is connected via Wireless Bridge to the Main Site, the site is on separate VLAN with Cisco 3560 switch. The main site has 6509 swith. Configuration as per attached diagram. We are connecting a fiber between the remote and the main site and adding a 3560E switch at the remote site, however we would like to keep the wireless connection as a backup in case the fiber is severed the wireless will be availble. Attached diagram shows detailed cofiguration. I would like to know what should I change to make this working. STP is enabled on all switches.

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Cisco Switching/Routing :: 3560 - Connecting Fiber To HP 2510-48 Port Switch

Feb 19, 2012

In one location we have a HP 2510-48 port switch which we need to connect to a Cisco 3560 switch. The problem I have is that we have issues connecting fibre to the HP switch, so I have decided to attached a CAT 5 to Fibre convertor at this end and another to the cisco switch.
 
My question you can not connect a HP switch to a Cisco switch, is this true or do I just need to confirgure something on the ports.

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Cisco Switching/Routing :: Does WS-C3750-12S Support Both Single And Multi-mode

Oct 11, 2012

I have a new building to add to our campus and I have been encouraged to run single mode fiber. All of my other buildings are connected with multi-mode fiber. I just want to make sure i will not have an issue if I run single mode to the new building with SM SFP's.

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Cisco Firewall :: ASA5510 Single Mode / Move To Multi Context Mode

Sep 16, 2012

I got an ASA 5510 system currently in single context mode, with CSC SSM installed. Single ISP uplink to internet, no VPN. And now customer would like add another ISP uplink, without invest another box for HA.What come across my mind is make the current box into multi context. There's some area i need to concern and also need yours perspective on it.
 
Question 1: For making the firewall into multi context, am i need to do it from scratch, issue mode multiple command. Then rebuilt the current production config into one of the context, then another context meant for the new IPS uplink, and one admin context?
 
Question 2: For CSC -SSM licensing requirement, model ASA 5510 with security plus license is able to support 2 context. So if i split my firewall like what i mention in question, what exactly number of context do i own (admin, context A, context B)?
 
Question 3: For CSC-SSM module in multi context mode, so the management port of CSC SSM must attach at admin context?
 
Question 4: After configured all the policy and traffic to scan, how exactly i should do in order apply this policy to the interface?  Should i only enable at admin context, then firewall service-policy rules, and apply it global, OR should i also do the same action on context A and Context B?

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Cisco Switching/Routing :: 3750x Management Port - No Connection In Switch Mode

Jun 19, 2012

I'm trying to get an IP_ADDR set on the management port in SWITCH: mode but for some reason the port seems disabled. PC shows connection unplugged. MGMT_INIT is not a valid command (not listed under '?' ). Bootloader version is 12.2(53R)SE2 FC1.

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Cisco Switching/Routing :: Fiber Connection Between Two 2960 Switches?

Mar 22, 2012

Company I work for just moved into a new location.  We have two data closets which are patched as independent entities, with no Ethernet tie connection. These closets are roughly 100 feet apart. 
 
There is a fiber connection that runs between both closets, that the previous tenant used to connect the switches.  I have placed a Cisco 2960 switch in each location, and added one mini SFP gbic's to each switch.  After attaching both sides, neither light up.  I do a sh inter gig1/0/49 on each and shows 'down down' (not admin down).
 
What is the trick on getting these to communciate, do I need to configure these ports, and are they supposed to light up? 
 
What I am trying to accomplish is to get the one closet that is completely cut off, communicating by logically stacking, or 'daisy chaining' via fiber. 
 
I turned off the lights and popped the fiber out, and I do see a faint red light (I did not look straight into it), so I think the fiber is active.

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