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Network Switches

Network Switches
Information and ideas on Dell PowerConnect network switch solutions.
Results for stp
  • Forum Thread: Switch doesn't work properly with spanning tree enabled

    Hello all, We recently acquired a Dell PowerConnect 5548 , but it seems it is not working properly. It learns the MAC addresses, but does not seem to be able to use them to forward the packets correctly, i.e. all ports receive the all the traffic (like in a network hub). The switch only works correctly...
  • Forum Thread: Setting the errdisable timeout function

    Does anyone know is the errdisable timeout function is set? From the STP best practices guide: BPDU Guard — PortFast moves an end-user port to forwarding state without going through all of the STP checks and can induce loops in the network. If any BPDU is received on a port where BPDU guard...
  • Forum Thread: Adding 5324 to 5424 for core redundancy?

    I've recently acquired a spare 5324 and would like to add it into my network infrastructure to provide some redundancy between my VM servers and my workstations. This is my current setup: Dell 5424 - Port 01 - uplink to firewall - Port 03-10 - paired uplinks to four ESXi hosts (teamed NICs) -...
  • Forum Thread: Bonding and Redundant paths with 2 PowerConnect 3524 switches and 1 linux machine with 2 NICs

    I am trying to create completely redundant path between my load balancer director and my datacenter's network. The load balancer has two NICs that have been bonded together using "mode 1" and each is plugged into one switch. My datacenter has provided me with two drops and each is plugged...
  • Forum Thread: inter switch connection

    Hi all, I am fairly new to setting up switches and need some advice on how to configure links between switches. I have a flat layer 2 network in building 1 with a 6248 switch acting as a core switch and a 6224 in building 2. The two buildings are connected together via a 1GB laser link and a 100MB...
  • Forum Thread: Can we connect Dell 6248 with Cisco 3560

    Hi Right now we are using Cisco 4507R as a core switch and Cisco 3560 using as an access switch in other floor with cisco ip phone. We configured inter Vlan routing, VTP, port security, Qos, STP, Trunk and Ether channel. Now we perched a Dell6248 switch for redundant of Cisco 4507R switch. Can any...
  • Forum Thread: Spanning Tree Topology Change Received: MSTID:

    Hi guys I have a ten gig switch with two uplink ports in a portchannel and a seperate one as one gig to the same upstream switch. Everything seems to be working fine but i keep getting these log messages in the switch. <189> Jul 2 10:10:02 192.168.0.251-1 TRAPMGR[875730204]: traputil.c(637...
  • Forum Thread: Enabling spanning tree blocks routes to other sites

    I recently tried enabling spanning tree on our 6248 switch stack at our co-location. We have a direct connection with a route that goes from our HQ to the colo. When I enabled spanning tree, it completely blocks that route. I can't even ping the gateway. I checked the logs on our Juniper firewalls...
  • Forum Thread: Spanning Tree Configuration Powerconnect 6248 and 3548

    I have a network configuration with several Powerconnect 3548s connected into a Powerconnect 6248. We have not changed any of the default Spanning Tree settings. We've noticed since the initial setup that the activity lights on all of the switches always seem to blink in unison like a hub rather...
  • Forum Thread: Replaced a PowerConnect 5424 and now we have Broadcast storm.

    We have a network problem in a storage network in one of the branch offices where we configured a mirrored storage environment using the HP Left Hand Networks Virtual Storage Appliance on two servers. We had to replace one of the switches when it failed, we do not have a back up of the exact configuration...
  • Forum Thread: Dell PowerConnect Spanning Tree 2748

    I just had a simple question about Spanning Tree. We have a network setup and everything already how hard is it to implement spanning tree on the powerconnect switches if you already have your network setup? is it an all day thing? Lots of configuring? Or just a simple turn on button?
  • Forum Thread: Spanning Tree Port Discarding

    Hello, I have a client with 5 PowerConnect 2800 series switches, one on each floor in a warehouse. This network runs SonicWALL wireless network which has three VLANs: 1 - default 10 - Corporate - has access to domain resources 20 - Guest - no domain resource access, just Internet access ...
  • Forum Thread: STP Troubleshooting Best Practices

    Spanning Tree Protocol Basics: In a layer 2 environment with no routing, active redundant paths are neither allowed nor desirable, because that can cause loops. Because a switch only segments collision domains it does not segment broadcast domains. STP helps find redundant links and place one in a...
  • Forum Thread: 6224, Spanning Tree, and Topology Change Behavior

    We're using Dell PowerConnect 6224 switches. In my opinion, the spanning-tree implementation incorrectly sets some ports to the discarding state during topology reconfiguration. We have interconnected two 6224s with a pair of cables creating a loop. We expect spanning tree to cause one...
  • Forum Thread: 2 switches, 2 vlans-links and 2 VLAN "domains"

    Hi. I have the current setup: Cisco 3750 with its own set of vlans (corporate) Dell M6348 with a different set of vlans (engineering) one link with vlan 600 on the Cisco, as access port, connecting to M6348 as access on vlan 1(default) This is the current setup and it has been working fine...
  • Forum Reply: RE: Trunking

    I've found out the problems, the portchannel for LAG is being designated state on spanning tree. So there i disable the STP the it's working. But i still hasn't try the trunk on vmware, i being busy for this week.
  • Forum Thread: STP/MSTP question

    Sorry for yet another spanning tree question. I've done a bit of homework but I just want to make sure I fully understand the required configuration. What's maybe slightly unique in our situation is we don't have any control of the two upstream switches which are owned by our ISP. It...
  • Forum Thread: PC: RSTP + LAG

    I'm reading up on how to enable Rapid Spanning-Tree on our core PowerConnects (3248s I believe). Is it really as simple as typing: # configure (config)# spanning-tree (config)# spanning-tree mode rstp (config-if)# exit (config)# exit ? Also, currently each switch pair has a LAG/LACP two-port...