Questions tagged [trunk]

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

Filter by
Sorted by
Tagged with
2 votes
2 answers
24k 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 ...
Arvo Bowen's user avatar
5 votes
5 answers
50k 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 ...
Ramy Al Zuhouri's user avatar
0 votes
1 answer
2k 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 ...
developer's user avatar
  • 111
1 vote
0 answers
175 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 ...
chakoshi's user avatar
1 vote
3 answers
4k 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 ...
Gus's user avatar
  • 13
-4 votes
1 answer
177 views

Difference between GBIC and SFP [closed]

What is the difference between GBIC, SFP, SFP+?
I don't know.'s user avatar
0 votes
2 answers
690 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 ...
TryHarder's user avatar
  • 259
5 votes
1 answer
7k 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 ...
fukawi2's user avatar
  • 5,436
1 vote
0 answers
218 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 ...
KAMAL Mourad's user avatar
-1 votes
1 answer
646 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 ...
Sameer Sheikh's user avatar
1 vote
1 answer
873 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 ...
ixnaum's user avatar
  • 11
1 vote
2 answers
2k 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) ...
Eljas Alakulppi's user avatar
1 vote
2 answers
28k 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 ...
Hugo Garcia's user avatar
-2 votes
2 answers
1k 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 ...
Buska's user avatar
  • 11
2 votes
1 answer
5k 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 ...
Jessica's user avatar
  • 21
4 votes
1 answer
23k 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 ...
losttime's user avatar
  • 151
0 votes
1 answer
2k 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 ...
liv2hak's user avatar
  • 303
1 vote
2 answers
4k 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. I have two PC's that I am using PC1 - (used for configuring the 6 switches via minicom) PC2 - to ...
liv2hak's user avatar
  • 303
2 votes
1 answer
2k 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. ...
Roman's user avatar
  • 392
1 vote
0 answers
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 ...
user67572's user avatar
0 votes
3 answers
19k 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 ...
Chase Florell's user avatar
-2 votes
1 answer
1k 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 ...
MarkKGreenway's user avatar
3 votes
2 answers
22k 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 ...
drcelus's user avatar
  • 1,254
4 votes
5 answers
11k 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 ...
ilumos's user avatar
  • 173
0 votes
1 answer
350 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 ...
Nix's user avatar
  • 56
1 vote
1 answer
8k 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.
John's user avatar
  • 1,493
0 votes
1 answer
976 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 ...
2ndkauboy's user avatar
2 votes
4 answers
3k 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 ...
skinneejoe's user avatar
8 votes
2 answers
5k 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 ...
MichaelRwat's user avatar
1 vote
1 answer
920 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, ...
Mark's user avatar
  • 31
1 vote
1 answer
5k 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 ...
Sam Sanders's user avatar
0 votes
1 answer
264 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. ...
nixnotwin's user avatar
  • 1,553
1 vote
1 answer
2k 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 ...
biggdman's user avatar
  • 153
3 votes
2 answers
21k 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 ...
Mei's user avatar
  • 4,600
29 votes
3 answers
17k 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 ...
netvope's user avatar
  • 2,133
9 votes
3 answers
8k 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 -----...
Darren H's user avatar
1 vote
1 answer
434 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 ...
Mark Detchemendy's user avatar
0 votes
1 answer
711 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 Dell ...
David's user avatar
  • 103
2 votes
1 answer
2k 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 ...
Coops's user avatar
  • 6,105
1 vote
2 answers
8k views

Best practice to trunk two GB switches?

I already read some similar questions but I still have no clue on how to do it the right way. I have a D-Link DGS-1248T 48 port GB-switch with 4 mini GBIC ports and I want to connect it to another ...
2ndkauboy's user avatar
0 votes
1 answer
6k views

How to change root directory of a SVN repository to trunk without moving all files?

Ok, here is my issue. I created a repository long time ago when I was not familiar with administrating a subversion server. I knew that it would be a good idea to have a "trunk" folder to work in. So ...
2ndkauboy's user avatar
3 votes
3 answers
38k views

How to setup dual-wan trunking but keep one as main... (Weighted round robin, Least load first, spillover)

I'm working on setting up a zywall USG-100 firewall. I can get everything to work but now I'm trying to get the 2 wans to work correctly. They both work individually but I'm having trouble with the ...
HTDutchy's user avatar
  • 445
1 vote
1 answer
2k views

Trixbox won't accept incoming calls on IAX trunk

any trixbox/asterisk experts out there? I have a trixbox installation that refuses to accept incoming calls via IAX2 from a certain VoIP provider. Initially, I thought it was a firewall problem but I ...
Tim Long's user avatar
  • 1,738
151 votes
2 answers
134k views

How do VLANs work?

What are VLANs? What problems do they solve? I'm helping a friend learn basic networking, as he's just become the sole sysadmin at a small company. I've been pointing him at various questions/answers ...
Murali Suriar's user avatar
3 votes
1 answer
218 views

Network topology, clearing congestion

Our networking components consist of (3) x D-Link DGS 1248T Switches, and a router. We have 4-5 servers running as VMWare Host, HTTPD, and Storage. The clients on the network are connected to the ...
David Houde's user avatar
  • 3,210
3 votes
2 answers
16k views

VLANs through a trunk between Dell Powerconnect 6248 and 2848?

I have a Powerconnect 6248 connected to a 2848 and I am trying to get VLANS working on the 2848. VLANS work and receive DHCP addresses, traffic routes correctly and DNS works on the 6248. The DHCP, ...
Bump's user avatar
  • 167
3 votes
2 answers
954 views

Planning trunk capacity for multiple GbE switches [duplicate]

Without measuring throughput (it's at the top of the list; this is just theoretical), I want to know the most standard method for trunking VLANs on multiple Gigabit (GbE) switches to a core Layer 3 ...
WuckaChucka's user avatar
1 vote
2 answers
277 views

What is SIP trunking?

Can someone explain to me in plain English what SIP trunking is, please? I've read about it on Google, but I don't really grasp it yet. Does it allow a VoIP call to be placed outside of the LAN? So ...
user avatar
1 vote
2 answers
982 views

Netgear FS726TP Internal VLAN

I have some Netgear FS726TP switches that are tied to a core switch using VLAN trunking. I have the switch split up so that certain ports are on certain VLANs, but we also have an "administrative" ...
Corey S.'s user avatar
  • 2,527

1
2