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

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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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23 views

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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1answer
53 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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0answers
11 views

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 ...
2
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1answer
36 views

Tagged Packets on native VLAN General Port

Scenario a) I have a Switchport (g1) in General-Mode. Say g1 is member of VLAN1 (native, untagged) and VLAN2 (tagged). Another Port (g2) is in Trunk-Mode, and member of VLAN1 and VLAN2 If i send a ...
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1answer
1k views

Multiple, different VLAN trunks to KVM guests (Linux)

I've hit a roadblock of sorts with an architectural challenge. I've got a server running KVM - which will feature a number of guests, some running virtualised firewalls and others, just plain web ...
3
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1answer
657 views

HP Procurve Core Switch Architecture

I want to build a new 'core' for our network. We currently have a 3com 4060 switch acting as the core, connecting all the other TOR and access switches together. The goal is to add resilience into ...
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1answer
679 views

ESXI 5.1 - Losing access to management interface on vSwitch1 when vSwitch0 loses network access

I'm probably missing something obvious here, but, I am trying to make some adjustments to the Vkernel Port management interface on vSwitch0 that is set to VLAN ID: All (4095). So I don't disconnect ...
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1answer
806 views

ESXI 5.1 - Unable to trunk to cisco switch

I have configured my esxi host vSwitch1 to use the secondary NIC on my VMware host. On vSwitch1 configuration I have set the VLAN to 4095 which specifies to allow all VLANs. If my cisco switch port ...
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1answer
2k views

Setting Up VLANS between a Dell PowerConnect 2824 and 2716

Goals: - Have two Dell switches trunked together with 1 cat5 cable. - Have VLANs of the same number/name passing traffic from switch to switch. - Not allowing any traffic from one VLAN to pass to a ...
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2answers
1k views

Difference between trunk and tagged port

I am reading some wikipedia articles and RFC 5517, studying VLANs, and I don't recognize the difference between a trunk port and a tagged port. From what the material I am reading says, a tagged ...
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1answer
347 views

Asterisk trunk SIP

I have a problem with trunk SIP when I connect my Asterisk to my provider and the Internet connection is lost, the trunk SIP will be unreachable, the problem consist is all local extension are ...
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0answers
62 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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3answers
761 views

Cisco 2960 trunking issue

I have a Cisco 2960 running 12.2(58) SE2 with four VLANs configured (10.10.10.0/24 - 10.10.40.0/24) plus one uplink on a 192.168.1.0/24 network. I have enabled ip routing and the VLANs can talk ...
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1answer
86 views

Difference between GBIC and SFP [closed]

What is the difference between GBIC, SFP, SFP+?
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2answers
211 views

VLAN centralised management

I wonder if there is a proper way to setup a 10 DLINK switches VLAN system. My aim is to have one computer/central switch that would broadcast the whole VLAN setting across the other switches and as ...
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0answers
309 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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1answer
723 views

Procurve Primary VLAN

I'm trying to depreciate usage of VLAN 1 on my ProCurve switches; 1 is unused. I understand that VLAN 1 must exist, but I want to remove it from all ports, especially trunks between switches. The ...
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0answers
124 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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1answer
309 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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1answer
307 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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2answers
844 views

Windows 8 Hyper-V & VLANs

I'm trying to setup Windows 8's Hyper-V so that I have: Switch which has 2 VMS connected to it Vyatta box which is connected to said switch and set as trunk (native vlan 1, allowed vlans 1-4000) ...
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2answers
5k views

VLAN trunking between Juniper EX -> Cisco Catalyst -> and Cisco Router

I have the following scenario: EX2200 Switch whit ge-0/0/8 set as an access port on VLAN 80 ge-0/0/0 set as a trunk port connected to a catalyst switch and various vlans allowed to pass includin ...
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2answers
233 views

Linux OS with GUI based multiple vlan support [closed]

Is there a distribution of Linux that includes support in the gui for managing 802.1q (trunks) We have techs in the field that may need to change from one vlan to another but don't know Linux CLI at ...
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0answers
1k views

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 ...
4
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1answer
4k views

Configuring Sonicwall to route VLAN traffic to internet

I have a Sonicwall NSA 2400 that had its configuration reset and I'm having trouble reconfiguring it. The Sonicwall's WAN port (X1) connects to the internet. Its LAN port (X0) connects to a 3Com ...
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1answer
386 views

VLAN with trunk to avoid broadcast storm in a network with redundant paths

I have 6 Juniper switches (EX - 2200) connected to each other as shown in the network topology. I have two PC's that I am using PC1 - (used for configuring the 6 switches via minicom) PC2 - to ...
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2answers
1k views

VLAN support on Juniper EX - 2200 switches

I have 6 Juniper switches (EX - 2200) connected to each other as shown in the network topology. ![enter image description here][1] I have two PC's that I am using PC1 - (used for configuring the 6 ...
2
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1answer
726 views

Setup VLAN agnostic ports on HP ProCurve 1810G (Ingress Filter, Trunking)

I am wondering if it is possible to configure some ports of the web managed ProCurve Switch 1810G to participate in all VLAN traffic. Even if no VLAN with that ID has been set up inside the switch. ...
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0answers
1k views

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 ...
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0answers
520 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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2answers
6k views

How to configure Cisco SG 300-28 for Trunking?

I just picked up two Cisco SG 300-28 switches. I'd like to trunk ports 25-28 for trunking between the two units. I'm just not sure how to do this. The reason for trunking is that we're using a ...
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1answer
463 views

Inbound Caller gets Fast Busy and Extension gets ringing

Inbound caller (1636) calls a sipstation direct dial to my phone on my desk. Cellphone sounds like fast busy but then desk phone rings. Cant connect the call. then when desk phone hangs up It ...
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1answer
1k views

What are the possible reasons for a SIP register failure?

I have setup an Elastix box (asterisk/freepbx based) and added a trunk for an external VoIP provider. When I get to the Asterisk command line interface and type sip show registry I always get the same ...
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3answers
3k views

Stacking two Netgear GS748TS switches via HDMI - only 1Gbps trunk bandwidth?

I have two Netgear GS748TS 48 port gigabit stackable switches, which when stacked via two HDMI cables allow hosts on one of the switches to talk to hosts on the other. Netgear claim that the HDMI ...
0
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1answer
99 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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1answer
3k views

Is it possible to have 802.1Q trunk port on Windows Server 2008?

I would like to have multiple vlans on Windows Server 2008 machine. Is there any way how to configure trunk port on Broadcom NetXtreme adapter on this OS ? Thank you.
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1answer
405 views

What is the best way to connect a dual LAN server to two trunked switches?

In an older quetion "Best practice to trunk two GB switches?" I asked about how to trunk two switches. I now used a static link to connect them and it runs well. Now I am not sure on how to connect ...
2
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4answers
661 views

Trunk fiber ports on switches

We are planning to purchase new switches for our network. We have three buildings in the same area that are all connected by fiber. Our main building is very large and needs to be connected by fiber ...
8
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3answers
2k views

HP Procurve Issue Passing Multiple VLANs over a link

Just to start off with I am a Cisco guy that got placed into an HP project. Basic topology overview from outside in: ASA 5505 with two Ethernet connections to a 2610 switch. This switch is then ...
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1answer
413 views

Possible to connect (trunk?) two Cisco 3560 switches from remote locations?

Disclaimer: I'm not a network guru but I do learn quickly! Bear with me. Situation: I have a colo setup which is comprised of several servers, a iscsi SAN, connected with a Cisco 3560G switch, ...
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1answer
2k views

How do you configuring vlans/trunk on a Cicso ASA 5510

I have a Cicso ASA 5510 that I want to connect to 2 Dell PowerConnect 5500 linked in a Switch Stack. I want to connect a trunking line to each switch so if one switch dies the other works. The ...
0
votes
1answer
222 views

Multiple ethernet interfaces without PCI LAN cards

I want to have multiple Ethernet ports on my Ubuntu server 10.04. As multi port LAN PCI card are expensive, I am planning to use a cheap managed switch. The cheapest one I found was Netgear GS108T. ...
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1answer
331 views

vlan 1 and 1002-1005 in a trunk connection-should they be allowed?

If I have a trunk connection that should allow only two VLANs(100 and 200 for example), is it neccessary to also allow the default vlan 1 or VLANs 1002-1005. I am trying to configure a switch port for ...
3
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2answers
7k views

HP Procurve 1800 Switch-to-Switch Trunks and LACP (and VLANs too!)

I am considering connecting two (and possibly three) HP Procurve 1800 switches together with trunks or with LACP. I can't find any substantial answer to my questions via Google or here. I did find ...
19
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3answers
3k views

What happens when a consumer switch receives a VLAN-tagged Ethernet frame?

Suppose you connect a trunk port from a VLAN capable network switch to a (VLAN incapable) consumer-grade network switch via a direct cable. Now the former switch send the later switch a 802.1Q-tagged ...
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3answers
3k views

Cisco and Linux and Vlans

I appear to have some fundamental misunderstanding of how VLANs work on Linux, and I'm hoping the good people here can educate me. Cast: One Cisco 3560, one VLAN, and one Linux box [1]. Cisco ...
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1answer
191 views

Trunk port wont accept the Printer vlan

I have three switches daisy-chained together and I have a printer vlan serviced with a print server off the core (1st) switch. the middle switch trunk port will not accept the printer vlan. I issue ...
0
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1answer
498 views

VLAN Trunk (Dell 6248 & SMC 8748M)

I have managed to make my VLAN work on both switches : Computer #1 from Dell Switch port #20 (VLAN #2) can ping Computer #2 from SMC Switch port #21 (VLAN #2) What I need to do is : Laptop on ...
2
votes
1answer
788 views

Cicso ASA 5505 with 2 trunk interfaces

(Updated with config, see bottom). I've a question regarding the ability of a Cisco ASA 5505 to handle two trunked interfaces when sitting between two switches. I've gone to the trouble of drawing a ...