Connect the redundant switch

Similar Questions

• connect the m6220 switches stacked to existing Lan infrastructure

  I need to connect two powerconnect M6220 to LAN infrastructure existing.

  The switch of two are configured in the stack.

  Which is the best way to uplink the new switch to the other two powerconnect 5548.

  The old switch are not stacked and bound together by two 10GB Ethernet cable (one of the links is disabled).

  I need to implement the network tolerant to failures, maybe I need to configure the tree covering weight on the two links of 10 GB.

  I use Spanning tree to configure the uplink between the old and the new, too?

  Is there a better alternative? There is another way to prevent the loop network?

  Thanks, Francesco

  You have a few options.

  1. you can simply connect the cables between the M6220 switch stack and the 5548.  Set up a trunk connection which allows for VLAN needed overall.  Tree covering weight until it is enabled on the switch and not off on specific ports connecting the default switches prevent loops and allow the most profitable link to be active, leaving the second connection as an alternative link in a blocking state.

  2. you can configure LAG (aggregation of links).  This is where you configure the individual physical ports in a virtual port channel.  This indicates a covering tree to treat multiple physical ports as a single link aggregated to the other switch.  You will need to have the port at each end of the connection channel mapping. (On each switch).  This allows the same speed but more flow.  To move traffic more.

• the redundant switch configuration

  We have a site with two servers of ESX4.  Both servers have networking configured like this:

  

  vmnic0 is plugged into a switch and vmnic2 is connected to another switch.  However if the vmnic0 switch is plugged breaks down all closed virtual guest machines.  Any ideas what I am doing wrong?

  However if the vmnic0 switch is plugged breaks down all closed virtual guest machines.

  You have VMware HA?

  Set response of isolation 'leave the virtual machine' and check how much time is needed to move to the other switch.

  But tuning configuration of the switch (for example with RSTP), you can reduce this time.

  Then you can put this time (better if you double it) in HA advanced settings and re-enable the response of isolation.

  André

• How to configure the port to connect the SG300 switch to 3com switch

  Hello

  I need help. I have my network with multiple switches SG300.

  I have one of them as my base switch working mode layer 3. With 2 VLANS and vlan interfaces to each vlan.

  Everything works ok.

  But now I need to plug a 3com unmanage switch who welcomed of vlan 1 and 2. How can I connect this switch to my Cisco sg300 switch? Which mode to use in this port?

  Thank you very much.

  SG300 Switch L3

  I have

  I have

  SG300 L2 switch

  I have

  I have<-------- how="" should="" i="" configure="" this="" connection="" to="" support="" all="">

  I have

  3Com unmanage switch

  I          I

  I          I

  I have vlan 1

  VLAN2

  Use of VLAN based on MAC on SG300 L2 switch, record all customers on the required VLANs (or better configure port SG300 L2 to 3com in VLAN PVID with maximum and other clients in the VLAN based on MAC).

• How to connect two network switches Force10 S4810P

  Hello world

  We just bought two S4810P Force10 network switches and we want to install on two adjacent brackets. They will be used to interconnect computing and NAS storage, installed in two baskets serving mainly local connections.

  We intend to use ports QSFP + to connect the two switches, and I have two questions.

  1. hardware configuration: what are the best transceivers and cables to use in this case?

  2. configuration of the software: should we use stacking or virtual link trunking? the information I've read so far does not give me a definitive answer.

  Thank you very much in advance for your help!

  The server room is already has some inside wiring? If so it be a transceiver that will percolate pre-existing cables. There are also some direct attach cables ranging from 0.5 m to 50 m. Here is an example of a cable direct attach: http://dell.to/23huDl7

  the best course of action would be to contact your sales representative and let them know what your needs are. They can get you city for right connection hardware.

  the VLT and stack the two have the same goal of redundancy, but go about it in different methods with different warnings warning for both. In both scenarios, the redundancy is dependent on each device connection linking the two switches. If you do not do this, then it may be better to let the independent switches. Here is a good blog that compares the VLT and stacking.

  http://bit.LY/1J8nI1Y

  I hope this helps.

• Using offsets to connect 4 2848 switches

  I have four switches 2848 PC I want to connect to the best way to deliver the good flow and link redundancy. There is no VLAN involved.

  I was not able to find a good setup for this example. From what I've seen, I think I want to use the offsets of 2 ports to connect the 4 switches thus:

  SW1-SW2 >

  SW2-SW3 >

  SW3-> SW4

  SW4-> SW1

  I saw that it would be preferable to set the cost of path higher for the SW4-> LAG SW1 ports to avoid a loop.

  But beyond that, I have no idea how set up correctly with regard to the settings in the user interface. Does anyone have an experience with which could provide me with some guidance on how to configure the GAL on each switch?

  Thank you very much in advance!

  -Max

  Your plan sounds great. It's a logical layout of the ports.

• issue of redundant switches ESX

  Hi guys,.

  Please help me to clarify this point.

  I enclose a simple diagram showing the configuration.

  Question: Do I need to connect the two switches in order to get the VM1 VM2 talk and vice versa and offer redundancy switch?

  Thank you!

  Hello

  Yes, I think that for your diagram and design, there is no redundancy.

  Imagine host2 loses the connection to switch1.

  If host1 sends all traffic through switch1, never land on two host. You bought two switches for redundancy haven't you?

  A server can detect when a directly connected path failed. For example, in the above situation, host2 will send everything to the switch2 he knows is online. But a server cannot fail 'upstream '.

• Network with Airport Extreme problems connected to the Linksys switch

  I have a wired network in my house.  It has the following configuration: Modem base station Airport Extreme for Linksys switch and then all wired connections.  It is in a wiring closet in a room upstairs.  I have 2 other extremes from the airport, to spread out of the range, but they are currently disabled and disconnected from the network until I have found why I get auto ip address on several of my wired connections.  I have reset the modem, EI and switch.  More wired connections seem to be working very well, but there are 4 or 5 who say that the ethernet cable is connected, but it can not connect to the internet because of a self assigned ip address.  I thought maybe it was a problem with the port of the switch, but when I plugged a cable work in, everything worked again.  Thus, for example, on my iMac, in a study downstairs, I had plugged on the ethernet port in the wall.  He let me only to connect to wireless internet.  He says the ethernet connection had a self assigned ip.  I went upstairs and took the cable from the switch and directly connected to the Airport Extreme, and then connect to this iMac worked fine via ethernet.  So I'm really confused as to why it does not work when it is connected to the switch.  Why are only a few connections ethernet works and others not?

  Any help would be greatly appreciated.

  Why are only a few connections ethernet works and others not?

  Because either you have a bad port on the switch (unlikely, but possible) or a wired Ethernet connection bad, or maybe both ends of several of the Ethernet cables (99% of the time, the problem is in the wiring or connectors Ethernet... not the switch).

  But, we must test the switch first and then work from there.  It might be much easier to call a guy from wire or the custom installation specialist to do all this for you, but if you want to give it a try... Here's how.  It is not difficult at this stage, just take some time.

  Unplug the switch except the Ethernet cable that connects the AirPort Extreme to each cable Ethernet switch.  Label each Ethernet cable with a number or a letter you can install the wires in their original position on the switch.

  Use of a laptop computer with an Ethernet port and a short, spare Ethernet cable... virtually no matter what length will make... and turn off the WiFi on the laptop so it should use Ethernet to connect to Internet.

  Test an Ethernet port on the switch with the laptop and the Ethernet cable to make sure that you have get a good Internet connection. If you do so, test the next port of the switch. Continue until all ports of the switch has been tested.  With luck, they will all work.

  If this is the case... which is likely... then you know that the Ethernet switch is working properly.

  Now things get a little more complicated. Ideally, you have documentation that tells you what Ethernet cable goes to what area of the House. If you don't, just connect the Ethernet cable to the switch... then go to the other end of the Ethernet cable to the wall outlet and connect the computer laptop and short Ethernet cable to the wall socket.

  If you have no documentation to indicate where each cable goes, so go ahead and connect all the Ethernet cables to the switch.

  Still, make sure that the wireless is disabled on the laptop so that it can only connect to the Internet via an Ethernet connection. Check if you can get a good connection Internet in this way. If you can, then you know that the individual Ethernet cable and the Ethernet port on the wall are working properly...

  Test other areas one at a time the same way.  You are very likely going to find Ethernet cables or a wall of ports that do not work properly. The hardest part here is that you... or a wire guy... will have to check the Ethernet cable at both ends to ensure that the Ethernet Sockets have been installed correctly.  It is not easy. The wires are tiny and its easy to get involved.  Installation of new Ethernet cards, it's really a job for an experienced guy who will provide hopefully a cable Tester well when it comes.

  Some Ethernet will certainly be replaced.  In rare cases, the cable itself has a break somewhere... and it's not easy to fix something like this, without pulling new cable... that would not be possible according to the House provision.

  When you know that all ports on the switch are working and all ports Ethernet wall around the House work... so... we can get the network set in place and working properly.

• Can I connect a VGA cable simultaneously with a DVI cable to a monitor and use the source switch?

  I found a similar, but not exact question and I was wondering if I could use the VGA cable AND cable DVI simultaneously on a HP 2159 m monitor and switch back and forth from analog and digital using the source switch on the screen? I noticed that some casual games such as found at BigFish and other gaming sites works best on VGA on DVI but I like to watch movies and other DVI instead of VGA?

  I did two HP 2159 m monitor but it could in fact be wise space more convenient to just use the right now and switch from the analog to the digital format.

  Thanks for any response.

  Hello

  You will need to edit the video in the monitor source selection when you want to switch.  Don't put it on AUTO.

  For a test, connect two monitors and then configure your PC for two monitors. Then, remove the monitor as the secondary (VGA) and now connect the cable to the main monitor VGA port.  Now try the video source selection in the menu of the monitor.  I never tried it on my 2159 m but it can work.

  Some monitors do not react to two active flows.

• How is the best way to connect the configuration of my router and switch?

  I have a cable modem. connect to a switch, I have 2 computers connected to the switch. I also just connected my router wireless switch. That's the best configuration or I lose my firewall of the router in passing is not by ports directly above?

  Most of the cable modems will give an IP address, so connect a switch to the modem and then connection of two computers and a router to the switch will usually result in one of these three devices, get an IP address (and internet connection), while the other two will not be.  (Notice that I guess a true "Modem" and not a "Modem/Router" device).  The correct configuration would be to connect your router to the modem (router gets the unique IP address).  The router can then process from the addresses IP what either side LAN of the router, then plug the devices you need (including switch) to the router's LAN ports.  This also ensures that all devices will be on the same subnet that your connection scheme to separate devices on the router wireless from the other two devices on the switch (here, assuming that you have a router/Modem device).

  HTH,

  JW

• connection with the base switch

  im running windows server 2008 with cisco switches, but when I connect a switch to one of my drops and add more than one computer to the switch, that it is not connect the computer that a network is running the rest does not get why?

  Hello joseconcepcion

  Your question would be better suited for our Tech Net forums. Please post your question on the link below. Thank you.

  http://social.technet.Microsoft.com/forums/en-us/category/WindowsServer/

• Cannot connect the switch Cisco Cisco SG300 - 28 p spend and traffic through VLANS

  Try to connect the Cisco SG300 - 28 p switch to another switch and proceed 2 VLANS between them.  Not doing any circuit.  If I connect a computer to the port on the SG300 - 28 p I can access the VLAN 2 and take a DHCP address. However, when I connect to another switch on the port and connect it to a port on another switch secondary I am unable to access VLAN 2 and pull an IP address.  I checked that the works of secondary switch (WS-C3560G-48PS-S) connected to the other 3500 s, but not this latest SG300 - 28 p.  Here's the configuration for both, I'm leaving areas that shouldn't matter and add if necessary.  Try to connect the SG300 - 28 p Port 26-WS-C3560 Port 1 port.  Once again, if I connect a computer to port 26 on the SG300 - 28 p I access the VLAN 2 as expected, but not when I connect to channel 2 on the secondary switch.

  Cisco SG300 - 28 p

  !
  interface vlan 1
  Internet name
  !
  interface vlan 2
  LAN name
  IP 172.20.5.11 255.255.0.0
  no ip address dhcp (this is the VLAN I'm moving)
  !
  interface vlan 3
  private name
  !
  interface vlan 4
  name of Nortel
  !
  interface vlan 101
  name Video_Project
  !
  interface gigabitethernet26
  Description VLAN2-ACCESS-CISCO3500
  switchport mode access
  switchport access vlan 2 (this goes to port 1 on the other Cisco 3500 switch to provide access 2 VLAN)

  Cisco 3500

  !
  interface Vlan1
  NATCO Internet description
  no ip address
  no ip route cache
  no ip mroute-cache
  !
  interface Vlan2
  NATCO LAN description
  IP 172.20.5.13 255.255.0.0
  no ip route cache
  no ip mroute-cache (this is the VLAN I'm moving)

  !
  interface Vlan3
  Description LHPrivate
  no ip address
  no ip route cache
  no ip mroute-cache
  !
  interface GigabitEthernet0/1
  switchport access vlan 2 (this is the port that I connect to the SG300 - 28 p)

  !
  interface GigabitEthernet0/2
  switchport access vlan 2 (this is the port I hang my computer to and trying to access VLAN 2 other switch)

  Hello

  Yes, STP is the problem here. As you can see on your release of the Cisco 3500 switch, port Gi0/1 is BKN (The FEW is a shortened form of "Broken").

  This is caused by an incompatibility of versions PLEASE used between the two switches. Small businesses (including series SG300) switches are use legacy STP or Rapid STP (your case), but uses templates to business (such as catalyst 3500) PVST + (each VLAN spanning tree version of STP).

  Two versions between group of switches are compatible only under certain conditions. Important condition is that the two switchports needs to use a VLAN 1, vlan access/native and not any other number VLAN.

  It is to make your communication work, you must:

  • disable the STP at least 3500 Cisco switch:
    • on overall global (Switch (config) # no vlan spanning tree 2)
    • or by the base interface (switch(config-if) # no vlan spanning tree 2)
  • change the configuration of your connection between two switches by following the path:
    • change the switchport trunk (trunk switchport mode) mode
    • do 1 VLAN as native vlan (vlan switchport trunk native 1)
    • Towing VLAN 2 as vlan tagged on that Stump (switchport trunk allow vlan add 2)

• WAP4410N defined as repeaters and not connected to the Gigabit switch

  Nice day.  The scenario is like this.  From the modem/router broadband connected to a switch port Gigabit 8.  Then a WAP4410N is connected to the switch, cable connection over a distance of 90 metres.  WAP4410N is defined as a point of access to the area.  Then the second WAP4410N will run as the first WAP4410N Repeater.  My question is, can we put the second WAP4410N as Repeater, without the need to be connected to the switch via an ethernet cable.

  Thank you.

  Hello Rey square,

  The short answer is Yes.

  modem

  |

  |

  | spend - AP1 - AP2---> wireless client

  Please keep several factors of consideration. When you repeat a signal, you will lose almost 50% throughput for each pattern with a maximum of 3 repeat. As an example, if you have a 10mbit AP1 connection, you should expect around 5 Mbit connection when using the AP2. Also, keep in mind, 90 meters is 293 feet. Although the AP can cover about 5,000 square feet in absolutely perfect conditions, without obstruction, this 90 meters is a very large distance to the AP you will probably run to a degradation of the signal serious, and possibly unable to join AP1 AP2.

• Switch ports connected with cross cable on the same switch...

  Hi experts,

  Just got a doubt.

  If both a stand-alone switch ports are connected by a crossover cable, how will be the stp of attitude toward this scenario...

  Thank you

  Arun

  Hi arun,

  As we all know the switches use according to criteria of application PLEASE:

  (1) to root the lowest BID

  (2) a low-cost path to the bridge root

  (3) OFFERED the lowest sender

  (4) minimum port priority

  (5) the lowest port id.

  So in your senario until number 4 allvalues will be equal and there will be a match tie. So for port breakage id will be used and the port with the higher port number will be blocked and low port id will be in a State of fwding.

  Example:

  If you've been through e1/1 and e1/2 cable on the same switch then 1/1 b in condition of fwding all-in-1/2 will b in the blocking state.

  HTH,

  Kind regards

  Shri :)

• How to make a route between two routers (networks) connected to the same switch?

  Hello guys, how are you?

  In my company, we have 2 internet routers more dsl router of data connected to 1 switch line

  the data row is used to connect the branches of our company together for network problems.

  the router 192.168.2.1 IP data

  internet routers IP 192.168.1.1 - 57.194.97.1

  We have 3 accesspoints wireless taking their internet of 192.168.1.1 oky guy

  what I want to do is when I connect to any wireless network to connect to the data line dsl with router 192.168.2.1

  When I use the ethernet on my pc I have IP addresses 192.168.2.222 for router data line and 192.168.1.222 for internet

  but the wireless is DHCP n that it is connected only to 192.168.1.1, which is the internet router, how can I do 192.168.1.1 192.168.2.1 when I connect

  using the wireless?

  I hope that you understand me ^_^

  Thanks in advance.

  Hello

  The question you posted would be better suited to the TechNet community. Please visit the link below to find a community that will provide the support you want.

  http://social.technet.Microsoft.com/forums/en/category/w7itpro/

  Hope this information is useful.