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

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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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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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100 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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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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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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341 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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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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Cisco 891w multiple VLAN configuration

I'm having trouble getting my guest network up. I have VLAN 1 that contains all our network resources (servers, desktops, printers, etc). I have the wireless configured to use VLAN1 but authenticate ...
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551 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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55 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 ...
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Is it possible to access multiple (trunked) vlans from A port programmed correctly?

What if we wanted to combine Mac security on a port, and allow that port access to all vlans on a Cisco switch? I know Mac spoofing would be a concern here, I work on an industrial network with ...
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Trunking between Cisco 1800 router and Cisco Catalyst 2960 switch

I would like to establish trunk between Cisco router 1812 and Catalyst 2960 switch. What I would like to have is that router gets ip address on his fe0 interface and on fe2 provides trunk with 3 VLANs ...