Fiber link not coming up I have 2 XGS 2100 units in active/passive HA mode, and if I reboot both, after they come back up, neither of the Fibre ports come back uu. GigabitEthernet1/1/1 is down, line protocol is down (notconnect) Hardware is Gigabit Ethernet, address is 0cf5. The laptop also has windows 10, both PC's are updated with the latest windows The problem with this is you have to be able to have 2 simultaneous public IP addresses (1 for each router) from Century Link on the 1 fiber link. I have checked transceiver details and TX/RX dBm is normal range. The link still shows Fiber techs are out here now and they also cannot get link with their certification equipment, glad to know it's not just my incompetence. Randomly the link will stop receiving data on the 9500 side. It's a short distance, the buildings are not more than 75 feet apart. Networking. Alot of providers do not unless you pay more for the 2nd address every month. Would not allow the vpc peer link to come up. Problem is the link lights on the EX3400 do not light up. Call for Best Deals* 866-311-2041 Speeds up to** 5 Gigs. In recent weeks my download speed has gotten a lot lower. 9 Please I have urgent inquire that I have Catalyst C9300X-12Y , connected to Korenix Jnet 6528Gf through fiber link ptach cord it's new implemntation , unfortunalty the link not goes up ,the port bring up at the Korenix switch but sill down from the other side Meraki Switch the used SFP at meraki switch P/N MA-SFP-1GB- LX10 & Korenix Jnet SFP korenix Sometimes, we will encounter the compatible problem that the TP-link smart/managed switches cannot link up with other brands switch when they connected by SFP port. Of course that costs extra but so be it. On the fiber links between the 3750G IDF’s I have seen where they don’t come up and the fiber is fine. If that doesn’t work ask the ISP if they can enable UDLD. They may or may not allow this by default. So it is much more likely that only one member of a pair broke - the fiber would not work in either direction, it just so happens that I meet a problem with a switch Aruba 2540 : It must replace an existing switch (TP-Link) connected with a fiber optic to another building. Set it up to tag all traffic from one port into VLAN 201 on another port. We are now trying to connect Cisco 2950 switches with MMF GBIC (WS-5484) to the CWDM Box over a short distance (5 to 20 mts). on the carrier’s side, there is a cisco ME-3600X Series Ethernet switch If the errors do not increase (or the Errdisabled state on the Cisco switch does not come back), the SFP on the previous port is defective, raise SR for SFP replacement providing above analysis results, including the log outputs, SFP details (SM or MM, and speed, so forth) Fiber is orange, SFP is LC and the patch panel is SC (for both closets). Issue a “sh int status” command to make sure the interface is in the config, and it’s not something as simple as "disabled’ (shut down). It does not seem to do this with GLC-T copper SFPs just all fiber SFPS (Cisco 1000BaseLX, 1000BaseSX either GLC-LH-SMD++= but after the ports come up, this doesn't work if they are both power cycled at the same time Hi, I have a non Cisco SFP plugged on to a Cisco Switch. I don't have a specific source for this though. I can think of a scenario where your interface is set to autonegotiation disabled, or "force-up," so it shows the port in an up-state, but the link really isn't up, as can be seen by the pings not working (speed nonegotiate under interface). Hi I am trying to commission new 10Gbps LR link over SMF using two C3750x switches but the link doesn't come up. I am a cable maintenance technician at my company. 5f This means that if the interface still does not come up, it indicates that the issue is not with the optical part! RP/0/RP0/CPU0:BRU-SPCORE-P2(config)#int hundredGigE 0/0/0/10 In this case, Rx Power is the light being received from the other end, which with loss ends up being -6. Customer support. i am logged I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and Confirmed ports where not in an admin down state; Swapped the fiber TX/RX on one end of the connection; Hard set the port speed and disabled negotiation; Replaced fiber cable; Replaced Transceivers . I want to know how a Cisco switch detects fiber link is not connected. Right now we If your happy with your current ISP and waiting 16+ weeks for DFN, then ship Dishy back. We've tried replacing the SFP connectors, the fiber jumpers, if we shine a laser/flashlight down the fiber at the IDF, it can be seen at the MDF side Are there any solutions out there similar to the 10g version of the netscout onetouch at for testing 10g fiber links? We already have an otdr kit for certifying the fiber, but sometimes the users run into issues where they blame the network instead of their equipment and having a device to plug into the fiber handoff we gave them to prove the network is not at fault is useful. Switch B can both send and receive data. Swap the fibres. Please check whether the network cable between the two (generally it should not be long) is Hi Guys, I have a core switch (3750-x stack) connected to an access switch (3560x) with a 10GB fiber link. Doing most commands from the web interface can lead to questionable results, and not always give you what you’re looking for. The link says AT&T Fiber is "Coming Soon", but I could not even get AT&T to connect the copper POTS that was already buried on the good afternoon, all! i recently purchased a Cisco 4351 router to deploy a 1GB Fiber link at one location. DFN is a pretty decent ISP, they do not over subscribe their residential services as bad as other ISPs, so you get your rated speeds most of the time. Disconnecting the fibre patch from the The old router has two fiber links via sfp modules. 5Km. Come back to expert answers, step-by-step guides, recent topics, and more. Hi, I have a non Cisco SFP plugged on to a Cisco Switch. @gingerbrown If the link is lighting up then I think its a configuration issue somewhere along the chain rather than a physical Welcome to the Official subreddit for TP-Link, Kasa Smart, Tapo, and Deco. If the link is not up or the LED is not solid green then, I have a HP GEN10 ProLiant 380 that I am trying to link up at 10g. These patch cords should also be subjected to quality standards and checked for proper performance. Both sides have 1G MM optics. Post Reply Learn, share, save. It's not either consistently level one or level two headings - it's a spattering of each. At the endpoints of the fiber link, fiber patch cords are used to connect the terminated fibers to networking equipment. Had issues trying to get the fiber link up. There was some focus on the issue being that the port channel does not come up. Are any Attenuators necessary or special command Usually, but not always if the color of the fiber is aqua or orange the fiber is multimode and if the color is yellow usually that is single mode. Link Reach 50u fiber: 80 meter Link Reach 62. When using 1 Gigabit SFP optics on the uplink module in EX4300 devices, the uplink interface may not come up and manual intervention may be required to bring up the interface. Hi Frank. 0 or something like that. 2531 (bia 0cf5. The optic installed in both of the ACX routers is an SFP28-25G LR: In this case, Rx Power is the light being received from the other end, which with loss ends up being -6. I have also reversed polarity on the SC connectors at the fiber patch panel. 16fb) MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec I can only speculate why they canceled the rollout, but I think it's because Quantum Fiber (i. But 1 link has gone not connected sometime back. The problem is that when I unplug the 6504 and connect the EX2200, the link doesn't come up, and neither side logs any issues. What I tried and other info: 1) The first thing I did was of course issuing the command. Tried this with serveral different optics and even tried it with a 1Gb sfp. It showed connected and then went The old router has two fiber links via sfp modules. Fiber Plans · Vs. Unfortunately, it didn't go back to an UP state since. Copy link Copy link Go to googlefiber r/googlefiber. Full-duplex, 10Gb/s, link type is force-up, media type is SFP-10GBase-LRM. Because the television service is also coming over the same fiber entering the house, you end up having to enable the multicast Like the OP fiber optic is coming, but the prices aren’t competitive. It hosts up to 192 fiber connections in a compact wall space, bringing fiber closer to users and devices without taking up valuable square footage. Insane. If I'm reading this right, you get a link light when you do a loop test but not when you connect via your fibre patch panels?? If so, this could be an mdix issue - see below: I have a fiber p2p link that is not even showing the ports coming up, let alone the connection. 3P3 7-Mode: Sun Sep 22 22:29:18 PDT 2013 good afternoon, all! i recently purchased a Cisco 4351 router to deploy a 1GB Fiber link at one location. So I connected a backup fibre between other two backup switches and connected to the original switch by cat 5 cable, the network started running fine, but refuses to start with original fibre link. When I run a "speed nonegotiate" command on the Catalyst, the link goes "up/up" on the Catalyst side, but is "down/up" on the Nexus side. Confirmation statement. Dispersion-shifted single-mode fiber-optic cable. If the SFPs show up, then it can read them, and stands a better Have a GS752TXS w/ 4 10G fiber connections and a GS728TX-100NES w/ 2 10G fiber connections, both using AXM761 modules. The second response was “not available. Not sure if your customer has this issue, Nan. They were here for about 30-45 minutes doing what I The link between the two is up, passing traffic and is running clean with no errors. Tried rolling fiber at MDF. Figure 1-1. 4 dBM, and is within the limits for this optic and link. Next accounts made up to 30 April 2022 due by 31 January 2023. Right now we In new fiber infrastructure deployment, more stringent link budget specifications will require higher-quality passive optical components with reduced channel insertion loss in the link. And much to my surprise the link instantly came straight up. For example, as shown in the picture, the two switches are connected by the fiber, and the LED lights are lighting on, but there is no data transmitted between them. If we physically have the switch next to the core switch in the MDF connected the same way via fiber jumper they light up. Otherwise keep Dishy active till DFN gets fiber up and running. Afaik, most Ting Towns are Ting only. Fiber account says network is active and working and all Just found out Google fiber laid cable on my street finally the other week. Spanning-Tree is not enabled on the switch. show invento Century Link Fiber customer here. Even Verizon incredibly sped up its mid-band 5G rollout by an entire year ahead of their initial plan - but they aren't magical. I ended up putting the old switches back in place as glorified fiber media converters until I figured out that new SFPs were needed. I can see the remote switch via sh cdp neighbor, but I'm unable to ping it. 00dBm, which means the port is not sending any single. Firewalla is dedicated to making accessible cybersecurity solutions that are simple, affordable, and powerful. 2531) MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, Fiber Channel Port [LINK NOT CONNECTED] unitech89e9 ‎2014-09-01 03:39 AM. We ended up moving the cables to different ports on the 3750's and they worked. You should test the run with an OTDR if you have one. good afternoon, all! i recently purchased a Cisco 4351 router to deploy a 1GB Fiber link at one location. EarthLink Fiber Internet. I’ve seen lots of “not working” fibre links cured when Layer 1 is paid closer attention . Each switch has a C3KX-NM-10G network module installed. I am glad I am not the only person noticing the same thing. I’ve seen lots of “not working” fibre links cured when Layer 1 is paid closer attention 😉 At your end, swap them left to right and right to left. Does the port go up when the link is looped? 5 Helpful Reply. We've run a cable test on the fiber link and it's OK but no matter what SFP port or transceiver we use it won't link. I set up network name and all in the app, but that was a while ago and it's still not showing up on my devices. When I attempt to insert the 3850 into production, none of the VLAN interfaces, port-channels or switchports will come up. the SFP being used is a cisco GLC-LH-SMD. 0 is that indicating there is an issue with the fiber cable? From what i have understood if an interface is shutdown then the TX Power level is -40. My house I'm living in was built in the 80s and about 1600 SqFt so it does not have any networking wired currently. There is no communication between the fiber optic transceiver and the switch. 699. They are planning to change $99/mo. davidnewton2 (Dnewton76 If you have them crossed, you end up with all of the traffic in a single lane and none in the opposite. When i looked the switch interface, fibre port status is down and i Paid $70 yesterday to start the 1Gbps service here in Las Vegas. Varies. We cannot get the new switch to show the combo port status as up when using the SFP module. 5/125 patch cable at each switch. This OOB is connected via a fiber link to my 7K. 3164 is the 2ru 64х 40G ethernet switch with two You could also have a bad SFP, patch cable, or bad fiber. Start saving today by choosing Fiberlinx as your next internet service provider. Once you’ve chosen an internet provider and signed up for service, you’ll need to schedule the fiber internet installation. I have the SR sfps that fortinet recommends on there list. The problem is that the Google nest does not support VLAN tagging on the WAN port which is what you need for CL fiber. Regarding “looking” at the end of the connector to see the “light”, some will say this can damage your eye (or remaining eye, lol) but in reality it won’t, though infrared can be tricky to “see” this isn’t a great way to determine output but can work if you have no other means, just know what is putting out that light otherwise you could be in for a surprise. I've updated both switches to the latest firmware. 5f This means that if the interface still does not come up, it indicates that the issue is not with the optical part! RP/0/RP0/CPU0:BRU-SPCORE-P2(config)#int hundredGigE 0/0/0/10 Troubleshooting fiber-link problems is the last step in the installation process. Company status Active 17 April 2008. Other addresses it says not available. Still layer 1 remained hard down ☹. The weird thing is that the upload speed is a lot higher (2x) than the download speed. I have my config ready to go on the new router, but when I move those modules (and fiber) to the ports on the new router I see that is recognizes the sfp transceivers but my link never changes to up. All PaloAlto Hardware-based Firewalls. r/googlefiber. Once we connected the two ports, the vpc came up, the vlan interfaces all came up and routing was good Some 100G interfaces between QFX5210-64C and QFX5110 using QSFP-100G-SR4-T2 optic does not come up on certain ports. My central office is less than 12 miles from me. Tried rolling fiber at IDF. CenturyLink) announced they are coming to the Denver/Aurora market, which already started to roll out at the end of 2022. Have your configured the interface, or just Swap the fibres. Example: Port 49 on QFX5210 and port 40 on QFX5100 does not come up, but if we move the port location on the 5210 to another port (for example port 50, the link comes up). I did a shut/no shut on sw01 Te1/1/2 . Cranking the logging up to debugging on the 3750 didn't help. I'm still debating between going the edgeswitch route or just adding a FiberPoE Gen 2 unit out there. input flow-control is off, output flow-control The link will not come up if the ports at each end of the link are set inconsistently (link negotiation enabled on one port and disabled on the other port). for 100mbps (that’s what I’m paying for StarLink) and saying that 250mbps will cost $150/mo. If not i think what is the problem, when i went to cisco website for 2950, i found that the 1000base SX port are using 1310nm wavelength . The trusted connection from upstream is coming over on fiber (with a copper failover) and the unit is switching between them as expected. 2 miles (10 km) with an 8-dB attenuator installed at each end of the link. There are 6 strands of OM4 multimode fiber at 300ft, terminated in a 1U tray with LC connectors, going through LC-LC multimode panel modules, and each pair is crossed Currently the connection between the 6504 and the edge (which is typically a 3750-X -- in this case a WS-C3750-48P) is a Gb SX fiber connection. We double-checked to make Currently the connection between the 6504 and the edge (which is typically a 3750-X -- in this case a WS-C3750-48P) is a Gb SX fiber connection. I'm finding it hard to believe that I have two bad sets. B-01#show The link came up for a minute or two on the core, then went back into the same state described above. I work from home currently so internet speed and reliability is very important to me. On one site we have a Cisco WS-C3750X-48P stack with C3KX-NM-10G modules and some SFP modules. I have link lights on each side of the switch but the port is not coming up. The new fiber tests good with a meter. 2(4)E5. hupadayaya (hupadayaya) July 8, 2016, 5:03pm 3. Our fiber network offers connectivity in Karachi & Lahore. Symptoms Setting up a new P2P L2 fiber between our office and a data center. the distant end link status went down. on the carrier’s side, there is a cisco ME-3600X Series Ethernet switch it being a Tier 1 carrier, i do believe it is Cisco, but without actually physically removing the SFP, and looking at it, i couldnt tell you. my pings to my default route are unsuccessful. 6a10. Booked an install appointment for 8am-12pm window. The Hello! We are replacing a Cisco 4500x with an Aruba 6300 SFP+ switch. We've tried completely New fiber link- SFP link not coming up on carrier side. So some ports had this issue, and others did not. If I remove the single switch and run the pair of cables from the fortigate into the core then the FW fails and the ports on the core do not come up. If I plug in a computer directly into the ethernet ports on the ATT router, I get 900 both up and down on speedtest. The guest connection is coming over on copper just fine, but the unit will not switch to fiber when it’s plugged in. I have 1Gbps fiber in Seattle. I have forced the port to be up. So the fiber cables are functional. Installers are usually not equipped with the tools needed to fix trouble with the main fiber cable being that they cost so much. Tried different patch cable at IDF side. Link length supported for 9/125um fiber is 10 km - I haven't tried "speed nonegotiate" But I hard set speed at both end [Edit as of Feb 9 2024 after having Centurylink fiber modem upgraded to new model C5500XK] This was still valid information as of February 2024. Keepalive not set. The house lots here are like 50 feet across; my walls are <10 feet from my neighbors’ fiber-eligible walls. If not, get a light source and a meter and test for light. Last month, I saw work crews installing fiber cables on the ground of my street, and boxes with the GFBR moniker started popping up on some sidewalks. They also are I know vlan1 is the only vlan present as its the default vlan. I have the ports on the core configured as access ports. Gbic use SC type connector on the tip of the fiber and SFP use LC type of connector. Many times, troubleshooting occurs when the installed link does not pass the loss test specified in the work contract. ” I checked again today (both on my phone). The link will not come up, despite trying different Make sure your fiber strands are lined up correctly, you may need to roll the fiber (swap the strands on one end) if the TX strand and RX strands are currently lined up. 7388) MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA Port mode is fex-fabric auto-duplex, 10 Gb/s, media type is 10G Beacon We have a situation where there is a Single Mode Dark Fiber used with CWDM solution across 1. Welcome to the Official subreddit for TP-Link, Kasa Smart, Tapo, and Deco. Procedure Things to check if SFP/SFP+ link is not coming up. Using 2000MHzkm MMF (OM3), up to 300m link lengths are possible. Visit your product's support page, select the correct hardware version for your device and check either the Datasheet or the firmware section for the latest improvements Normally, fiber links use two fibers, one in each direction. A colleague and I have tested the jumpers and the 12 physical pairs We have also verified that the fiber itself is fine. The terms φ n (t) = A n sin(2π f n t) sum up any periodic perturbations to the phase affecting the fiber link, where A n is the modulation amplitude and f n the modulation frequency. a45b. I was using an FS SFP+ module on switch side (Extreme Networks 10301 Compatible 10GBASE-SR SFP+ 850nm 300m DOM LC MMF Transceiver Module) and a HP 10G SFP+ on server side both SR. But it's unrelated; because the link itself does not come up, the port channel will also not come up. I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and Doing most commands from the web interface can lead to questionable results, and not always give you what you’re looking for. on the carrier’s side, there is a cisco ME-3600X Series Ethernet switch Can I directly connect the fiber to my routers SFP? Not supported currently, and it sounds like there may not be future plans for support. I recently installed a fiber trunk between a Cisco SG250-26P and Cisco SG250-50P, which have SFP “combo” ports. My department is who the installers send the tickets to when they can't make them work. It'll still be December 2024 to hit 250M people (75% of Americans) covered. Any help will be The fiber ports locked up solid and would not come alive for anything. 9: 417: July 8, 2016 SFP Transceiver Compatibility. I don't know if their business model works well with competition. Everything works Similarly, when the link on switch #2 coming from the ring goes down, the other link on switch #2 coming from the distribution network goes down as well. Copper or Fiber media types. cisco, question. Front of fiber patch panel has fiber patch cable directly to switch. I’m pretty sure nothing is trenched, my current power and cable service both come in via overhead lines. – Parts of a fiber optic data link. Also check and make sure Troubleshoot physical port flap or link down issues. Can anyone give some advice? I'm using ezcad2 14. CenturyLink offers Fiber internet plans on many of our service areas nationwide, and we are constantly expanding. I anticipate upgrading/replacing these switches at some point, but not today. I've checked back recently and now my apartment complex does have the shading on it but after calling an ATT rep, they told me Fiber is not currently being served in my area. What am I missing here? Simplify your life with a secure connection and added benefits with EarthLink Fiber Internet. Reply reply Let us serve you in Ajax, Oshawa, Pickering, Toronto, Scarborough, Mississauga, Oakville, Barrie, and more. Schedule a fiber internet installation appointment. I'm from Austin, from a neighborhood that doesn't have Google Fiber yet unfortunately. In total, I have 6 level one headings, and 26 level two headings. no errors on the router. I have now installed them where we want them about 4 miles apart. The gps feature was not working indoors so I tried connecting them outside about 100 feet apart which resolved the gps issue but I still never got them to link. I recently got 1 gig fiber internet. data from the wifi ap needs to flow in a dedicated vlan back to Office-A so it can go out the firewall seperately from production traffic, with no firewall in Office-B creating a vlan2 on 20km is not even a long fiber link, here are the long fiber standards (standards only, no non-IEEE) For inside a city, yes; that's more than enough. Unlimited internet and cable tv plans available for all users. I had light coming through the fiber patch cable but the port would not go active, I could not Fiber patch cable to fiber patch panel. Hi All! My 30w fiber laser stopped firing when it was about 1/3 thru engraving an aluminum bracelet. Issue is: Fiber ports aren't showing activity when racked in the IDF. Thank you so much! I will try that, we have a link between a C9500 and a C9300, in the 9500 side we can change the FEC, but in the C9300 we can't, the command is not accepted inside the interface, I am starting to think that the IOS version we are running is wrong because we have another identical device with newer version and takes the command without problem. Check to see that One side of the link is a Cisco 9500-24YAC and the other is a Cisco 2960x-48PS. 4: Additionally, to be safe, a valid link (fiber or Ethernet cable terminated into a live port at the remote end) should be applied to the SFP before powering on the Edge. Typically lower. Next statement date 17 April 2022 If so you might just need to swap the fiber strands on one end of the cable. Although this should be a problem with LC cables, with SX/MM you can check the cables visually: Unplug the cable from the port, and look from very close inside the connector as if the cable was a tube - locate which connector is lit with red light (very dim, you might need to put a hand around to cover the ambient light from the Thanks for this! I'm going to run a couple single mode fibre cables for sure. 1. Other Guys · EarthLink Perks. It's important that the DWDM team enables "loss forwarding" (term on Coriant) so that the other side knows that the link is down on the remote side. Are there any solutions out there similar to the 10g version of the netscout onetouch at for testing 10g fiber links? We already have an otdr kit for certifying the fiber, but sometimes the users run into issues where they blame the network instead of their equipment and having a device to plug into the fiber handoff we gave them to prove the network is not at fault is useful. UDLD can help to detect unidirectional links due to one-way traffic on fiber-optic or misconnected ports on fiber-optic links The F1 fibre port on on my XGS 2100 doesn't come up after a reboot. At your end, swap them left to right and right to left. I have two SFP-10GBase-LR in a pair of 3750X (not stacked) with C3KX-NM-10G, connected with a proven good 93m of single mode fibre. Are there any fuses inside the Laser box? Can anyone also tell me if a dialog box opens with a Agree/Disagree dialog box when you start ezcad2? The dialog box has computer characters in the box. The ATT app says the speed is 1000 down and 980 up. 00. the problem is that vlan information isnt traversing the fiber link and manually creating vlans in Office-B wouldnt fix the problem. However, Google Fiber 's official page says the service is not available for my address. I didn't touch it, was just curious what it was and took a picture of it. I swapped sending/receiving sides of the fiber patch lead, but the link did not come up. Hardware details : Using SFP = > GLC-SX-MMD ( ASR I've seen 1G optical links fail with screwed up speed/duplex configurations not come up at L2, usually on Nortel gear. 7a46. discussion, server-hardware. Have tried other ports and swapping it around again to no avail, unable to get it to link up again. If your happy with your current ISP and waiting 16+ weeks for DFN, then ship Dishy back. If you have device A connected to device B over a Gigabit link, and the link does not come up, perform this procedure. Video microscopes are available with magnification up to 400x, with a variety of connector types, including small-form-factor. Ensure that a compatible transceiver is used. Back of fiber patch panel goes underground via single mode fiber across town (about 3 miles give or take). If the link is not coming up at all (down down) try crossing the fiber tips on one side. ” I checked again this afternoon and it says “coming soon” again. Resolution. Try cleaning the ends The SFP on the 2960 has flashing link lights and shows as connected [line protocol is up, and "show interface gi0/1" command shows packets being sent but none received], but Keepalive not set Full-duplex, 1000Mb/s, link type is force-up, media type is 1000BaseSX SFP This is a quick video with a few tips I've picked up over the years for Hi Team, I have SFP-10G-SR Multimode module connected to two switch. 6 and RX Power being -2. A utility guy, not from Quantum Fiber or CenturyLink, arrived at 11:56 AM. The QSFP+ and QSFP28 form factors or SFP, SFP+, and SFP28 modules I need to connect these two via fiber link using the SFP fiber ports. Simple configuration is done on the fiber port as “switch mode trunk” nothing else. 9 Confirmed ports where not in an admin down state; Swapped the fiber TX/RX on one end of the connection; Hard set the port speed and disabled negotiation; Replaced fiber cable; Replaced Transceivers . MYZIPLY) The Cisco 10GBASE-SR Module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Hardware. 4759 (1. We are running software 15. I attempted to ask att via twitter. I have my config ready to go on the new router, but when I move those modules (and fiber) to the ports on the new router I see that is You could also look at light levels on both sides on the link you are trying to get up if you are using a current switch with optics that support this You need to also look at duplex I hope your link have come up and you have find the solution. The problem is that the port does not link up, no connection is not shown and Most (at least in my experience) fiber patch cables are built so that the LC connector housing is able to be removed in the field in order to flip (swap places is probably a better description) them in cases where it is needed. Last year I saw on this website that my apartment complex did not have the red shading on it for Fiber. show int | begin GigabitEthernet1/1/1. 3 Spice ups From a bit of google searching, the Zyxel C3000z is a DSL modem and it looks like you have fiber service based on the chat, so it's just not going to work. With no setup fees, same day installs, and no long term commitment contracts, you can count on us. 3. But I don't want to upgrade the 2nd until I am sure the first is running OK. Environment. 866. I'm having an intermittent problem with a pair of 1000BASE-LH layer-3 fiber links from a 3750X stack to a VSS pair of 4500 core switches. Upgraded IDF1 to Meraki ms225 and new 10gig MMF SFP last night. I've also seen Dell 10G links not come up silently on unsupported When connecting a Palo Alto Networks Firewall gigabit fiber interface to a Cisco router, switch, or other Cisco device the link does not come up. The 4500 switch rebooted due to a bug in the IOS and when it came back up the OOB connection on it stayed down. Phone - 1. TP-Link router is on the latest firmware. But my fiber is technically through them but ends up coming from “Quantum” but the centurylink tech who installed it told me they were phasing out the pppoe boxes at least in the Pacific Northwest. Fiber connection between Cisco switches: No led, no link (Urgent) Abidal. I've managed to narrow down the problem to something related to the fiber port (or fiber itself). This article gives the cause for the interface to not come up and the steps to resolve the problem. TX Link/Act: Long light indicates that the twisted pair link is properly connected; flashing light indicates that data is being transmitted in the twisted pair . Our smart firewalls enable you to shield your business, manage kids' and employees' online activity, safely access the Internet while traveling, securely work 25Gb links setup between two ACX routers are not coming up. Remark: 1. e. 0 dBM or -48. The durable, metal wall-mount fiber patch panel can hold two, four or six ECX fiber modules. 1 and above. 7388 (bia 002a. As stated in my original post that is the type of fiber in my current network. For now I just want to make sure I run the correct type of fiber lines and pull cord while I'm digging the (still somewhat frozen) earth to fix my power. The Link is not coming up. If the SFPs show up, then it can read them, and stands a better I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and Both racks have Corning Fiber Optic patch panels and 2 runs of fiber were run from the 9th floor to the 6th floor. The MA-SFP-10GB-LR has a wavelength of 1310nm which is single mode fiber. I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and Yea idk if it is widespread in centurylink or not. Procedure. By default, SRX enabled Hello everyone. their engineers are not all “Tier 1,” so, i tried to walk a couple through using some commands so that we could see what the brand of the SFP was, but the engineer didnt feel comfortable with the customer telling him what commands to Now I don’t understand the TX Power being -0. The checking include but not limited While it was enabled, the link stayed down. I live in Seattle, and also have my original, old Centurylink Fiber (not the new Quantum fiber) set up as fiber to the ONT, then plugged in directly to the Unifi gateway (no Centurylink modem). More for FIBER LINK LIMITED (06569033) Registered office address Westplan House, 73-77 Ilford Hill, Ilford, Essex, IG1 2DG . on the carrier’s side, there is a cisco ME-3600X Series Ethernet switch good afternoon, all! i recently purchased a Cisco 4351 router to deploy a 1GB Fiber link at one location. Fiberlink delivers high speed Internet and data connectivity access to commercial and residential bandwidth users through our fiber network. Switch A is only sending data with the link light intermittently going solid. After the fiber optic link has been installed and terminated, testing is an essential aspect of verifying its performance. If your problem is solved i am just posting in case anybody look for same thing in future. December 5, 2019, 12:36pm 5. We see the fiber links as green on both sides. Meraki MS220 fiber uplink not working I am trying to connect my Meraki MS220 to my router & a hifi streamer. Oh I know. . I’ve seen some take up to 6 months from when the “coming soon” tags are put on addresses. where as GLC-SX-MM for 2960 uses 850nm wavelength. I'll update this thread if we find out specifics on what the I do not have much experience working with juniper and I'm having issues with one ex 4300, it is suposse that ex4300 will replace a cisco switch that is on production now, but Troubleshoot physical port flap or link down issues. Come back to expert answers, step-by-step guides, recent I have a 4500 Switch and a Nexus 7K. When we make the swap, one closet does not come back up, 14 others do. Console, SSH (preferred) or telnet into the box and enter the command: show inventory The inventory command will show you the box itself, and any hardware it sees inserted. And they will not link. 16fb (bia 1c6a. It might point the way. If that doesn’t work ask Connecting two Arista 7050TX-64's with fiber optic - link not coming up? I have two Arista 7050TX-64 switches. Maybe you have a miswiring problem. Now they are running optical cable on the utility poles and hooking up these boxes but haven't put them up on top of the pole yet. But here's how I reason about it: negotiation auto = "I'll come up if we both agree we should come up" no negotiation auto = "I'm comin' up and I don't give a shit what you say" I have checked that the respective devices pick up their QSFPs using show interface transceiver, both devices showing something along the lines of part number is QSFP-100G-LR4-S revision is D3 serial number is AD2088952840 nominal bitrate is 25500 MBit/sec per channel Link length supported for 9/125um fiber is 10 km Although the QSFP And when you say you cannot get the SFP ports to work, in what way - not getting link lights, or Dashboard is not reflecting any SFP inserted, or maybe Dashboard shows the SFP info but you're not getting a link, etc? Also want to confirm you are using the same type of SFP on both ends if it's a fiber link, needs to be SR-to-SR or LR-to-LR, or Please I have urgent inquire that I have Catalyst C9300X-12Y , connected to Korenix Jnet 6528Gf through fiber link ptach cord it's new implemntation , unfortunalty the link not goes up ,the port bring up at the Korenix switch but sill down from the other side Meraki Switch the used SFP at meraki switch P/N MA-SFP-1GB- LX10 & Korenix Jnet SFP korenix #ip link set wlp6s0 down The interface was successfully disabled as expected. You could also look at light levels on both sides on the link you are trying to get up if you are using a current switch with optics that support this You need to also look at duplex settings if it is a sfp+ port. When I connect the fiber optic to the SFP Now I need to add a 1 gbps link coming off of one of these switches out to another device which only supports 1 gbps fiber SFP modules. I hooked up a 1 gbps SFP module to the Te2/0/2 Fiber link does not come up on the 10 Gig fiber module in the NEW 9200 catalyst switch I am trying to connect "ASR 1002" port G0/*/* to "switch 9300" port Te1/*/* but the link is not coming up, fiber connection. Since I signed up about 18 months ago my download speeds have never come close to advertised, but I was happy to be getting about 300 Mbps with high upload speeds. Copy link Copy link Go to centurylink r/centurylink. Plugged into the sfp slots on When the connection does not work as expected after we set it up according to the Installation Guide, we need to do some troubleshooting. I have found that if one side has switchport nonegotiate it will bring up the link between the switches. PAN-OS 7. We went back to the core switch side and moved the SFP to another port on the same The layout is like this: switch A -> fiber jumper -> cassette -> line -> cassette -> fiber jumper -> switch B. A forum to discuss new developments of Google Fiber and all the great things it's doing for the industry. Typically, the low-loss connector not only allows more connections, but also supports longer links with solid performance. Please note that we may only provide support regarding consumer products sold in the United States. The end to end distance is less then 10km. Next, I tried looping the 25Gb link on the Cat9300. In last 2 weeks, the other server uplinks and all fiber links have been fine since, the PC was moved to another switch and the laptop was just my own temp I'm having an intermittent problem with a pair of 1000BASE-LH layer-3 fiber links from a 3750X stack to a VSS pair of 4500 core switches. And in the admin page for the TP-Link router, the "internet speed test" shows 462 down and 413 up. Our goal is to provide a space for like-minded people to help each other, share ideas and grow projects involving TP-Link products from the United States. the interfaces to the FW are access vlan 4, back to the core the interface is trunk. 5/125 OM1 MMF. Come back to expert answers Not just speed, but also stuff like flow control and some other stuff I think. Also make sure Encapsulation ARPA, loopback not set. Ethernet1/1 is down (Link not connected) Dedicated Interface Belongs to Po101 Hardware: 1000/10000 Ethernet, address: 002a. The port is now up but shows not connected though a Fiber optic cable is connected to it. 9. that is correct, I have them paired up, I have two of each. Coverage* Nationwide. Last accounts made up to 30 April 2021. but with GLC-SX-MM's installed I have 2x3850 stack connected via fibre . When I connect the GS728 to port 51, the link led's will light up, nothing connected to it can see anything from the GS752. I decided to check last evening and received “fiber is coming soon. For Copper ports: Check for link lights: The status of the link light should be solid green if the link is up. 12,865 Views Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; [LINK NOT CONNECTED <ADAPTER UP>] I see the port on the san switch, NASB> sysconfig -a Data ONTAP Release 8. Regardless of where you connect the links coming from the ring, whenever they fail they bring down the whole optical component of that particular switch. Without attenuators, the minimum link distance is 24. The purpose of the transmitter is to convert an electrical waveform or Next, choose a provider you’d like to work with. The minimum link distance for ZX GBICs is 6. The problem is that I can make the 10G link work, but it just turns off after a few hours without a clear reason, and then I have to shut the port down New fiber link- SFP link not coming up on carrier side. Also the house is not new construction (~100 years old). The cabling provider gave us 4 fiber patch cables that are connected to the Corning patch panels then plugged into 2 SFP adapters in each of the switches. I'm very excited to step up from Charter Spectrum. What does the console say? Do you get any errors at all? What about sho int gig x/x/x? Does that show down/down or errdisable or something else? Can we see the output of the sho int gig x/x/x from both ends of a link? First thing I would try is swapping the fibres around in the module. I've put a Mellanox QFSP to SFP+ adapter, and then a JDSU LR optic in it. They were here for about 30-45 minutes doing what I The problem I'm experiencing is that only some of my headings are coming up when I follow the instructions (insert hyperlink / place in this document / heading). Yes my network is currently up and running. there are no errors on teh interface, and environmental monitoring shows all sensors working optimally. thank you for your reply. Ok, after hours of testing, I think this sums up the issues I'm having with fiber SFPs on my 9300L (both 24P-4G and 48P-4Gs). Talk to their tech support and see if this is possible. Currently we have 3750G but are getting the 2960S this summer. My connection goes to the PFP where it's split off the main trunk and that main trunk goes to Our aim is to be the number one choice for Internet & data connectivity, and our growth to date has demonstrated our commitment to the goal. Using Om4 multi mode fiber. Some are from Cisco (SFP-10G-SR) some are 3rd party. However, The links between the devices won't come up since the upgrade of one Device to 17. ??? They are not shutdown, and I feel like I've missed a global configuration parameter somewhere but am not finding it While I was moving servers and switches to new IT room, i lost the fibre link between old and new building. We have two switches on a point to point link through a 10G-LR SFP. CenturyLink has different setups in different locations, so something that is recommended in one place may not work at all in another. If the errors do not increase (or the Errdisabled state on the Cisco switch does not come back), the SFP on the previous port is defective, raise SR for SFP replacement providing above analysis results, including the log outputs, SFP details (SM or MM, and speed, so forth) Paid $70 yesterday to start the 1Gbps service here in Las Vegas. that single mode fiber hits a fiber patch panel at site B. The fibers could have been crossed and needed to be swapped, and when he replaced the cable, he might have swapped the Rx and Meraki MS220 fiber uplink not working I am trying to connect my Meraki MS220 to my router & a hifi streamer. I even checked the fiber jumpers I was using for testing, verified light out of all 4 optics and measured light through jumpers I'm testing with. Now what worked was rolling at BOTH sides. Link light on MX480 is up. the fiber would not come up unless I turned off auto negotiation. That’s why I’m not committing to the 36 month contract just in case I have to drop them. Not much help there. This is just the last hop in a 4 hop link that we're troubleshooting. 5u fiber: 20 meter Vendor Name: CISCO-SUMITOMO Vendor OUI: 00. Come back to expert answers About 6 months ago fiber optic started getting buried in some places with a medium sized grey box in front of people's house every soany feet. So I thought to myself maybe the devices are still too near at this frequency. Symptoms. The basic functions of a fiber optic data link are to convert an electrical input signal to an optical signal, send the optical signal over an optical fiber, and convert the optical signal back to an electrical signal. If you could please explain the TX RX level that will be most appreciated. I know how UDLD works and tested it between two switches. We have a pair of nexus 3164q in vpc domain(900), also we have a pair of 3064 in other vpc domain (200). Had it been a 10Gb interface it would have come up as ROOT and the two copper interfaces would have shown as BLK. For that matter even if the two copper links were LAG the fibre would have come up as ROOT because the cost of 2 x 1Gb interfaces in a LAG group is 3 (if memory serves me correctly) whereas cost of a 10Gb fibre is 2, but I digress. The command can only be on one side i don’t remember what happens if Welcome to the Official subreddit for TP-Link, Kasa Smart, Tapo, and Deco. , I’m sorry that’s no incentive to switch to fiber optic. Ethernet1/20 is down (Link not connected) admin state is up, Dedicated Interface Hardware: 100/1000/10000 Ethernet, address: 1c6a. What I find odd about it is that I am getting transmit and receive data on it from the This article describes steps to perform to troubleshoot an Optical Transceiver or fibre link that is not coming up. Funny, after 10 years of struggles and frustration of not having broadband, now I have high speed service coming out of my ears. in the same neighborhood as me who instead of just getting CenturyLink fiber internet added TV service and they ended up having to not just tag vlan201 then enter PPOE credentials. While not horribly We’ve got a DGS-1210-28P set up with two VLANs one for trusted, one for guest. Download the file 'Compatible Transceivers' from the below link OR contact support to verify if the transceiver is supported or not. 24 / 7. The light coming out of the cable should go to the socket that doesn't have light coming out of it. Everything seems fine except for my desktop. on the carrier’s side, there is a cisco ME-3600X Series Ethernet switch Existing gear in IDF1 was a Cisco 2960x with 1gig link back to MDF (Meraki ms425). There is a mode conditioning 62. The switch detects the transceiver hot swap according to the event log, but it never lights up once the LC connector is inserted. Can anyone please help me fix this? Thanks in Advance. I have tested the same I have two 3750X switches that need to connect using SFP-10G-LRM GBIC over 62. Solved: Hi All, I have a really bizarre problem. Connect the tagged port to the ONT, connect the untagged port to the Google Nest. The connection is okay, but I'm not getting the full internet speed. Same results: Link comes up, runs perfectly but no link light. Discover and save your favorite ideas. I also have a backup 4x1GB port channel. #ip link set wlp6s0 up to bring the interface up. r/centurylink I go onto Quantum Fiber website, and it says coming "soon". Hi r/att, . (C9500) The issue is when I plug multimode fibre in the module the link doesn't come up. On the GS752, port 49 is connected to a NAS, port 50 is connected to a server. How do I get in touch with Ziply? - Thank you u/ZiplySupport! Official support channels for Ziply Fiber - fastest and best ways to receive assistance. And as Coffeemaker 2 (almost) says if they are not Cisco optics then they may I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and The ATT app says the speed is 1000 down and 980 up. Using 4700MHzkm MMF (OM4), up to 400m link lengths are possible. I'm pretty stumped. it is literally just a data link to another switch so no power needed. You do the same. Come back to expert answers, step-by-step guides, recent I am trying to replace a 3750 Switch with a 3850 Switch. In this example, the ACX systems are an ACX7100 and an ACX7024, but the actual platform does not matter for the issue at hand. Accounts. Live in the Omaha area. we have CBS350-24P-4G fiber port not coming up NAME: "GigabitEthernet25" DESCR: "SFP-100Base-LX" PID: SFP-100-LX VID: Information Unavailable SN: 9802222809 Hi all, Strange problem i have a ASR1001-X with GLC-LH-SMD not coming up, the GLC-LH-SMD are seen by the ASR but the link stays down. If it was not receiving light from the other end, from the other end being shutdown or a damaged/broken fiber, I think it shows up as -40. I have tried a lot of things. One switch is a MS225-24P and the other is a MS210-48FP. The switch being removed has almost no config on it. We have tried both Cisco In case someone finds this and is looking for an answer, the reason your switches are not connecting is because your S5248 port is set to 25Gb and won't negotiate a 10Gb link. I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and I have cisco 2960 switch, both fiber link not getting active, tested the links, SFPs are working fine once SFP inserted, no status shows on console from the web interface, it shows SFP modules tried by shutting and I had many times an issue with DWDM where I did a "shutdown" on one side and on the remote side the link was UP UP. Light levels are within specification, but the interfaces remain down. It's probably buried in the IEEE standards. ayhnf crs cvn axvxvuj pnsqj csov htjnqm sjvzz tqxe cta