FS728TP Ports SFP switch

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• Trouble connecting Netgear XS748T to Ubiquiti UniFi US-48-750W via Port SFP +.

  We bought a new switch Netgear XS748T and try connecting to our existing network which consists of several switches of Ubiquiti UniFi US-48-750W, and we try to connect using the SFP + 10 GB ports on the two switches. We have a Direct Link SFP + SFP + DAC, passive, 1 m, cable AWG30, we bought at Amazon / 10Gtek and when we try to use this cable between the Ubiquiti switch and the Netgear we get no link activity.

  However if we use the same cable between two of Ubiquiti switches it lights immediately and works very well, the same is true if we use the same SFP + cable between the switch Netgear XS748T and a XS728T that we must also. Its almost as if the switches detect the same manufacturer at the other end and right link up but when its manufacturer another pass on the other end, it does nothing.

  It is very aggravating, and Im going to be obliged to return the new Netgear switches. Can someone make a suggestion or confirm if they should or may not work? Everything simply connecting switches together using a cable of copper works very well but since our current switches don't support 1 GB via copper it provides not enough bandwidth for our use so we really need the port SFP + 10 GB to give us the uplink.

  Here is a link to the modules SFP + cable, we bought:

  https://www.Amazon.com/DP/B01LSGGUOY/ref=twister_B01M0ER4M0?_encoding=UTF8&PSC=1

  It seems that I solved the problem myself. I bought a set of:
  10Gtek for Cisco SFP - 10 G - LR, 10 Gb/s Transceiver SFP + module 1310nm 10km

  And the LR version worked instantly. I honestly don't know what's the difference between a SFP + SR module and a module LR SFP +, but for some reason any LR module has allowed these two switches to connect.

  Here are links to the modules and the cable used in case anyone needs a solution to this:

  LR SFP + Module:
  https://www.Amazon.com/GP/product/B00UMS905G/ref=oh_aui_detailpage_o00_s00?ie=UTF8&PSC=1

  Fiber cable:
  https://www.Amazon.com/GP/product/B00T5796DQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&PSC=1

• Port 20Gbit-channels using ports sfp +.

  Hello

  I hope to implement a cost affective solution who can use ports for uplinks on the X 2960 & switch series XR and where appropriate to the top/downlink modules for X 3750 series switch

  If someone knows if it is possible to group ports sfp + 10 GB in a channel port 20gbit?

  Whoever did this or they could point me in the right direction for documentation?

  Thank you

  Hello

  Yes, it can group several ports 10Gig on all these devices as long as you have the appropriate modules.  2960 X supports up to 24 Etherchannels and the XR up to 48.

  If you are uplnking the 2960 3750-X series, you need a 10Gig for X-3750 series module.

  HTH

• Cisco ASR1002 - 5 G/K9 - 8-port SFP MGBSX1

  Hi guys,.

  I am trying to improve the telephone network switched on a customer site. My goal is to install a router in order to split the telephone dial in 7 broadcast domains.

  So far, they have used a very old Catalyst 4000 switch as main switch to interconnect the 7 offices and many 3500 series access switches.

  I found the ASR1002 Router - 5 G/K9 which seems to me a good deal. At a first sight, it seems just need to buy a plug-in that supports additional SFP 4 and nothing more. The connector SFP, I need is MGBSX1.

  Could be he you guys please let me know if I can be wrong and if you know better solutions? The budget is limited to 10 M $ to $12 K.

  Thank you very much

  Dario

  Dario Francesco Vanin wrote:
  Hi Darren,
  Thanks for your answer. I don't need any NAT or routing protocol because all I have to connect is in terms of routers are just that device and the Telco Router. Do you already know the code of the module I have to add on the 3750X?
  Dario
  

  You don't need to add * any * modules to 3750 X - model I quoted has 12 ports SFP - you just plug the appropriate FPS.

  If your links are copper (I.E. not long range), then you can even cheaper do - buy a WS-C3750X-24 t - S - 24 copper gigabit ports - much to segment your network based on.

  If you need uplinks of fiber, then the first switch on WS - C3750X - 12 s-S - will give you 12 ports SFP based - but without knowing what kind (and distance) of fibre you need / have, I won't recommend fiber SFP.

  See you soon.

• Port MGMT switch 3850

  Hello

  I've 3850 configured as a switch Board where I run BGP on it. I do not you connected our network MGMT port internal mgmt in light of security concerns. So what worries me is if the switch gets somehow hacked from the outside (we run SSH or HTTP server on it) the attacker access the MGMT port or not? MGMT interface is on a separate data plan, so there is no possible way to get the controller above the switch ports? I couldn't find this info in the Administrator's guide, so I ask if anyone of you know :).

  Thank you!

  The management port catalyst 3850, like many others of the most modern Cisco switches use a completely separate virtual routing and transfer (VRF) instance.

  As long as you do not expose the interfaces of layer 3 (routed ports or switch Virtual Interfaces (LASS)) to the outside world, your management plan is totally isolated. If the switch had external interfaces L3 and was completely compromised, you can connect to the switch and then throwing sessions (from the switch itself) for the accessible host internally which can be consulted via the VRF management.

  For more information about the internal architecture of the switch, please see Presentation Cisco Live BRKARC-3438. Notes on slide 30 + how they show the 'PEM' (the management Ethernet Port) directly connected to the switch CPU and don't share does not return or controllers that govern data ports.

  Also note the configuration guide which States:

  The switch cannot route packets from Ethernet port to a port in network management and vice versa.

• PowerConnect 2824 Ports SFP does not

  We bought a new switch 2824 with a corresponding to SFP module replace old 2724 PowerConnect and SFP module.

  After the configuration of the switch and installing it, we were able to get a connection on our uplinked to fiber.
  SFP light illuminates and flashes from time to time, and the switch detects correctly module SFP is inserted and that the fiber is connected.  We can see the insertion of the SFP is detected and the switch for change of fiber mode by looking at the output of the console, and the web administration port status page lists the port as "ComboF" when the SFP is inserted and the fiber is connected.

  However, the switch always indicates that the port State is down.  (The port is not administratively disabled.)

  The old switch works very well with the old SFP module.  The new switch does not work with the old or the new module SFP.  We tried two combo SFP ports.  We also checked that the fiber itself is fine. We cannot get the new switch to display the drop-down list port status that up when you use the SFP. We tried to completely reset the new switch by removing the configuration file via the boot over the serial connection menu and re-run the initial configuration wizard, but the port still won't go up.

  Any ideas?

  After a few tests yesterday, we determined that part of auto-negotiation must be disabled for switch work with our copper and fiber Media converters.

  The 2724 works very well with our media converters, with auto-negotiation enabled.

  The 2824 works very well with auto-negotiation enabled when it is connected to an another SFP transceiver in building switch.

  But when we introduce the Media Converter in the path, the 2824 will bring only the link up if you disable auto-negotiation.

  So far, everything looks good.

• Airport Extreme router's Express is connected by wire, East of 1 Gbps ports on switch it extreme on 100Bt now?

  Hi all

  In my house, the extreme is connected to a fiber modem 250 / 250 MB/s and I plugged a time Machine as an Express via CAT6 UTP. All serve as a router and provide 2.4 and 5 GHz wifi on the different floors of the House. Just a question: Express has 2 ports ethernet 100BT, Extreme and Time Machine have 3 1000BT Ethernet ports. The extreme switch mode back all 100BT because of the Express ports?  Because that would explain the downgrade in the port on the extreme speed after that the PS3 has been used connected to the Express.

  

  The extreme switch mode back all 100BT because of the Express ports?

  No.... but any device connected to the Terminal AirPort Express will have a maximum speed of 100 Mbps. So, if you connect a 1 000 compatible device to the Ethernet port on the Express, it would appear as a device of 100 Mbps on the network as the Express is limiting speeds.

  So, if you want a device that is capable of 1 000 Mbit/s to have 1 000 Mbit/s speed on your network, it will have to connect to AirPort Extreme or time Capsule.

• LGS308 Port Trunking Switch Cisco 3650

  I have a Cisco 3650 switch I need to connect my Linksys LGS308 again. I have the port trunking install everything on the side of Cisco, however, I'm not very familiar with trunking on the side of Linksys. What should the configuration looks like on the side of Linksys? Currently, I installed port no. 1 port trunking, and all VLAN belong them to this port. Once I have save the configuration, I can access is no longer the switch. Any ideas?

  The series of LGS Linksys has the same methodology VLAN that Cisco switches series SG.

  Which means a Port marked as port VLAN Trunk will be no marked member (PVID) of a single VLAN and can have several VLAN Tag assigned.

  Example:

  Cisco 3650: Port 1 set as a VLAN Trunk; PVID = 1 and tag VLAN 2,3,4

  LGS308: Port 1 set as a VLAN Trunk; PVID = 1 and tag VLAN 2,3,4; Management VLAN = 1,

  The IP address of the subnet IP of VLAN1

• Connection to the internet with the 8 port Gig switch

  Hey you all the benefits.  I have 6 desktop computers in my house right now, and each of them should be wired.  I thought I'd get the EG008W 8 port 10/100/1000 switch, but before I do that, I need to know if I can run the cable my modem Cat5 cable to a port on the switch uplink to provide access to each 6 workstations in my home?

  Thank you!!

  The WRT610N is not an uplink port. It has a port from the internet. As a router, it offers two different interfaces, one for the internet side and one for the side LAN (the side LAN is connected to a switch 4 ports). A router separates the two sides and routes traffic between them.

  An ethernet switch extends an ethernet network. It is not a router. It doesn't have an internet port or similar. It does not separate anything. He joins all devices connected on the same LAN.

  Older ethernet switches had uplink ports to post a link with other switches. This is because older switches do not have ports to detection automatic, which means that they are not able to know you used a cross-cable or right to connect. With the new switches you don't have to worry about it more. They configure each port correctly some cable you are using and any other device you connect to. All the switch ports are the same.

  You can get the EG switch that you mentioned before or any other ethernet switch to expand the number of ports wired in your LAN. One of the ports on the switch simply connecting to a port LAN of the WRT, and you can use all the remaining ports on the WRT and the switch. Do not connect the switch ethernet directly to your modem. Only the WRT.

• Cable vs. Ethernet SFP switch

  
  

  1. you don't need a cable crossed to these switches. They are auto-detection. They recognize automatically to which port to connect.

  2. the benefit of a fibre on a wired ethernet are usually greater reliability (no interference with other electro magnetic fields) and the possibility to connect larger distances. If you need this or not depends on your needs.

• Details of port SAN Switch of vSphere or ESXi

  The way I see my network switch name & port details to which my ESXi network cards are connected via CDP.

  With the help of vSphere or ESXi command in any case I can check SAN switch of details in the SAN switch name & ports Details to which my ESXi storage HBA cards are connected?

  They are Cisco MDS 9513 SAN switches, you know a plugin or a way to see who?

  Yes, using the plugin VIEW, take a look: Cisco DCNM rocks | Jeremy Waldrop & #039; s Blog

• Four port Serial Switch

  I'm looking to see if anyone has ever whatever it is used like this and if so can anyone recommend anything?  Thanks for any comments.

  Never used. For multiple serial ports, this is what I used.

• IPS inline & port interface port trunk Switch

  Hello

  Is it possible to configure the IP addresses as the topology below? SW1 and SW2 SPI connection ports is in trunk mode. I would like to configure the IPS in inline mode pairing interface. (not the vlan pairing mode)

  SW1 - IPS - SW2

  Kind regards.

  Yes, this method is fully supported.

  If you want to control all the VLANS with a single virtual sensor, then assign the pair inline interface to the virtual sensor.

  If you want to monitor the VLANS with different virtual sensors, we support groups vlan on this pair of inline interface.

  Do not confuse "inline-pair of vlan" with the "groups of vlan inline on a pair of inline interface.

  The "pair of vlan inline" will pair 2 VLANS on the same interface. When a package arrives in the sensor it will be sent back the same interface with its header vlan has changed.

  The "groups of vlan" on a pair of inline interface don't change headers for VLANs.

  They are only used for virtual local networks, so that the Group of VLAN can then be assigned to a specific virtual sensor.

  You could then take a group of VLANs for your office network employees and assign them to vs0 and take a second group of VLAN for your DMZ and assign them to vs1.

  You can place a vlan unique within each vlan, or you can place several VLANs within each group vlan.

  But it only made sense to have 4 groups of vlan, because you have only 4 virtual sensors on most devices (a bit like the 4215 have 1 virutal sensor so you can make groups of vlan on the 4215).

  I also recommend that you change your virtual sensor and set the Inline TCP Session tracking mode on "Interface and Vlan. In this way the sensor will separately monitor connections on each vlan. This is necessary if a router can route traffic between several VLANs. Without this setting, the sensor will become confused if it sees the same connection of multiple VLANs.

• Choice of a fiber switch

  I'm planning a deployment wide network and I need a switch of fiber 10 GB to connect the distribution switches in a metro network to the data center. I need an infrastructure of high speed of each building to the data center through this switch, but I have no chance of finding the right equipment.

  Could you please suggest equipment Cisco that meets my needs, or recommend alternative methods/devices?

  EDIT: the scenario is a campus configuration. 10 separate buildings, between 50 and 600 m, connection to the center of a Datacenter and NOC. At least 12 ports. The goal is to have high-speed connections to all buildings, preferably 10GbE, using optical fiber for the distance. So far, I hope for a central L3 with ports SFP switch +.

  The type of transceiver LR requires single mode. SR requires multimode. Other than that, they work the same in your switches.

  If you have the option of specifying the fiber, you can maybe get several pair of mode both multimode and single and thus have the possibility of using the less expensive radios where you can get away with it. In general, the cost for the new wiring is mainly in installation - not raw.

  As a point of reference, the price list for the two transceivers I mentioned vs US $650 US $1 900 each for the long reach Singlemode short vs respectively reach multimode types. So with 10 buildings requiring at least 20 transceivers (one at each end - two at each end if you upgrade the redundancy), the cost can really add up.

  Yes the 3850-12XS (and variations of port 24 or 48) or switch 4500 X are very good choices. They are both all-SFP switches.

• can you connect the SFP - 10 G - SR low-support to SFP 1000BASE-SX?

  Hello world:

  today I use the SFP + 'SFP - 10 G - SR' in Cisco Catalyst 2960 S-48TD-L connect to the SFP 1000BASE-SX to 6509 WS - X 6724-SFP module.

  the port setting is master, but they do not work, even the light don't flush. Then, I also use the SFP 1000BASE-SX to replace SFP + SFP - 10 G - SR in

  2960 S-48TD-L, then they cany working.

  I look to the top of the cisco data sheet, there is no roadmap to satament database 10G sfp + can't low support 1 G sfp. So, I want to confirm the problem.

  Otherwise, the 10 FPS + can only use for 10G SFP +; can't go down the suport 1 G SFP.

  This means: If you want to use the 10 G SFP + the other old device also need to replace.

  Thank you ~ for your help!

  Hi Marvin,.

  I found this conversation today, because I'm looking for an answer on a question similar to the question that Jerry asked, at the opening of this discussion.

  So my problem is this. In a certain place, I need two 10 GB and a connection of 1 GB on an optical cable. To cut costs, I tried with WS-C2960X-48FPD-L, but because it contains only two ports of SFP +, I tried with two WS-C2960X-24PD-L which will be connected with the battery modules.

  Then, having two WS-C2960X-24PD-L, I have 2 x 2 ports SFP + 1 GB. There are two open questions:

  1. can I put 1 GB transmitter SFP module SFP + port (that I have a connection of 1 GB at remote site)?

  2. can I use two switches to 24 ports mentioned 2960, in a way that I use one of them for the two connections of 10 GB (using ports SFP + 10 GB connection) and the second member of the battery so that we (2 available) port SFP + is used to 1 GB SFP connection (using the SFP port + as mentioned in question 1)?

  I'm not sure if your previous statement covers my questions, because it is not clear if the 1 GB SFP transceiver can be inserted in the port SFP + WS - C2960X - 24PD - L (or any other a port SFP switch +).