A trunk is a connection between switches where multiple VLAN's pass.

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Manage Windows Server 2012 and trunk the Hyper-V VM (same physical NIC)

I'm trying to use Hyper-V to deploy a pfSENSE box inside of it. But, the scenario is: 3 VLANs VID: 1000 VID: 2000 VID: 3000 On a physical switch port, I've tagged the Server physical port with ...
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198 views

ProCurve Trunking

We have 3 switches at the moment - see the diagram below for NOW. Essentially the CORE switch is 7, and 8 and 9 have a 3 cable trunk each to 7. Now, we want to add Switch 5 to the equation - see ...
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662 views

Asterisk outbound calls hanging up imediatellly on Zap trunks

The inbound calls work fine. Outbound calls fail as follows: Dial("SIP/xxxxxxxxx","ZAP/g0/14442223333|300|") Couldn't call g0/14442223333 Hungup 'Zap/2-1' Everyone is busy/congested at this time ...
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70 views

Can not ping from specific vlan tagging interface

On my box I have following interfaces(vlan tagging): eth2.556: 172.16.1.17 eth2.201: 192.168.208.143 All default route via 172.16.1.1 I can ping all other IP using 192.168.208.x, but can not ping ...
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108 views

How to place KVM VMs on several hosts in the same network, with one of the VMs as the DHCP server

I have a KVM host running on Centos. I have 3 Virtual machines installed on this host. Host is connected to a Nexus (Cisco). Virtual machine is able to get Internet. Everything is working fine. Now I ...
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“Dynamic” access point and port authentication

Here is the context of the question: I have multiple switches with port-authentication (MAC based or 802.1X). Each switch are connected with a trunk port statically configured. One vlan for ...
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534 views

link aggregation in esxi5 + aggregation on the switch + freebsd9 = an aggregated link that do not work

i have a 6 port intel server nic. under the settings on ESXi5, i aggregated 4 of the ports. i have ZFSGuru running on the VM, which is based off of FreeBSD 9, iirc. this VM has two interfaces, an ...
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VLANs with mixed MTUs trunked over a LAG

I'm contemplating enabling Jumbo frames for a specific network/VLAN (a dedicated storage network). Ports are spread across two switches, linked together using a LAG, which is configured to carry all ...
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187 views

Can pvlan-trunk Ports Carry normal vlans too on Juniper EX8208?

I'm trying to implement pvlan on Juniper EX8208 which will span across multiple switches (to a Cisco nexus 7000 Series) and need to know if the Inter-Switch-Link Port with "pvlan-trunk" will allow ...
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135 views

intel MFSYS25 blade server- trunk port configuration

Can any one help me configure the Intel blade MFSYS25 switch module to communicate to Cisco devices through trunk? I tried for many hours, seems it doesn't work! There seems to be no documentation on ...
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756 views

TP-LINK to HP switch connectivity issue

I have purchased 2 TP-LINK SG3424P switches to power PoE access points. Half of them are connected to one TP-LINK switch that is then connected through a trunk port to a Cisco 3560X and the other half ...
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185 views

SMC Tigerswitch and HP Procurve wouldn't connect with fiber

the first thing that I don't understand is why the SMC switch considers the pair of single mode fibers as one port,one link, but the HP switch sees the two fibers as two ports. when I wanted to ...
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1k views

HP E3800 switch to switch LACP connection dropping

I have a problem with 2 sets of stacked (2 switches in each stack) HP E3800 48 port switches. One set of stacked switches per rack for a total of 4 switches. I have a 4 port static LACP connection ...
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Lync 2013 SIP Trunk with credentials?

We have a Lync 2013 installation and are currently in the process of testing SIP functionality. Our current SIP trunk requires a username and password to authenticate. I can't find an awful lot of ...
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76 views

interface not showing on port-channel (dell S5000 switch)

Our trunk went down due to a faulty cable, but when we had it replaced, the interfaces (speficially TenG 0/4 and /5) are not being shown on the port channel group even if they are physically up: Our ...
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337 views

Untangle running on ESXi sending tagged VLAN to Cisco switch not working

basically here is my setup: [Host A] = A hypervisor running ESXi 5.0 [Switch A] = A Cisco 2960-S Series 48 port switch [Switch B] = A Cisco 2960-S Series 48 port switch [P-Router] = *A physical ...
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Do you need STP on ProCurve trunks?

We have 3 switches - a Core Switch, and 2 downstream switches. Each downstream switch has a 3 cable Trunk direct to the core switch. However - when we disconnected one cable in that trunk group (...