Cisco Switching/Routing :: Trunk Between 3560 And Juniper Ex4200

Nov 8, 2011

I need to create a trunk between a Cisco 3560 and a Juniper EX4200I am perfectly happy with the the Cisco side and want to only allow 1 vlan across the trunk, which I was going to configure on the 3560 side. Any experience on trunking to a Juniper Ex4200.Looking at the Juniper side it looks like I just set the port as a L2 uplink.

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Cisco Switching/Routing :: Connection Between 2950 And Juniper EX4200?

Oct 23, 2011

I have a lot of problems with the connection between our Cisco 2950 and Juniper EX4200.We got two different types of connection, two swtiches with LAG (LACP) and three switches with standard Trunk (STP).
 
The Problem:If i connect a new switch to the EX4200, both LAG-interfaces goes down with the following message in the cisco-log:
 
%PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Gi0/1 in err-disable state
: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Gi0/2 in err-disable state
 
This does not always happen, maybe 20-40% of the times i connect a new swtich or move a switch from a port to another.This happens reglardless if i have the EX4500 connected or not.

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Juniper EX4200 - CA / CS Required To Deploy 802.1x?

Sep 26, 2012

Is a CA/CS required to deploy 802.1x? Google searches is confusing me with multiple answers. Im currently trying to test without a CA/CS and im having no luck.

Lab
2008 R2 DC
2008 R2 NPS
Juniper EX4200
User Win 7 PC

This is for a wired connection

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Juniper EX4200 / When Try To Reconnect Subnet For Switch Is Different?

Jan 4, 2013

I work for a small company and we just brought in a Juniper EX4200 switch so that we are able to test our SFP's and XFP's. I went through the EZSetup process however when I try to re-connect afterwards it just tells me that my subnet for the switch is different then the PC. I have tried assigning a static IP but that is not working for me either

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Cisco Switching/Routing :: 3560 Need To Add 2nd Trunk

Jun 6, 2013

I have a Cisco SW ( 3560 ) with one Trunk link to my router ( 7606 ), Trunk link is fully utilized so i need to add 2nd Trunk.Shall all move some customers from old trunk to 2nd one and create a new subterface for them ?I am think if i can create bundle and add subinterfaces under this bundle ?Add two GE ports to be memeber of this bundle ?

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Cisco Switching/Routing :: Trunk Between SF300 And 3560?

Jan 5, 2012

We have purchased 3 no CISCO SF300-48P (Access Switches) with the interest of setting up a new laboratory consisting of 120 desktops. We currently have a CISCO 4507R   (Core Switch) and a CISCO 3560 (Distribution Switch) for the campus wide network. Our network is developed with various VLANS to support Internet and Intranet facilities. The new lab need to be incorporated in to the Campus wide network with a new VLAN ID. But problem is while trunking the CISCO 3560 (Distribution switch) to the CISCO SF300-48P (Access Switch) communication does not happen. While, surfing the internet and various doc's say that SF300 uses GVRP instead of dot1q trunking.

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Cisco Switching/Routing :: LAG / Trunk Configuration Between 3560 And SG300-24P

Aug 27, 2012

A client of ours has installed an SG300-24P switch and would like to setup a LAG between the SG300 and the 3560 switch we manage for them. They would like the LAG to also pass the voice and two data VLANs currently in use; 5, 10, and 100 respectively. I configured the two ports as an Etherchannel with trunking on the logical port, but no luck. I reconfigured as follows:
 
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode active
end

[code]....
 
I see no output when I do show lacp nei. At this point the client is looking to use for the configurations to use as he does not know how to setup the SG300 and it is a switch I have never dealt with. I have found some configurations that I believe  would allow a single VLAN across, but nothing I believe will allow the LAG to pass all the VLAN's.

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Cisco Switching/Routing :: 3560 - Native Vlan1 Over Trunk

Jan 28, 2013

if i have this config:
switch port mode trunk
trunk aloved vlan 50
 
will travel over this trunk untagged packets? For eg the V LAN 1 is by default native V LAN without tag. If i have created a bog ring with catalyst 3560x switches with no spanning tree on V LAN 1 can be the case of this config a loop ???
I am using upper config on interfaces that are connected the switches  together in ring.
 
Other interfaces on switch have this config:  
int range 0/1-4
switchport mode acc
switchport acc vlan1
 
int range 0/5-24
switchport mode acc
switchport acc vlan50
 
I am using vlan1 just for local switching without connection to internet! I am asking just because i have this king of messages in logs:

%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/27 (1), with SW3560x_BR8874 GigabitEthernet1/0/19 (50).
 
GI 1/0/27 and GI 1/0/19 have this config:
switchport mode trunk
trunk aloved vlan 50

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Cisco Switching/Routing :: 3560 Multiple Switches One Trunk Port

Sep 21, 2012

We have 7 3560's in 7 different locations connected to our providor for wan access.  Our provider has given us a copper cable at each point and we have connected it directly to our 3560 switch at each location.  Each port is configured the same way at each location.  Each switch is running eigrp.All of the switch ports on each switch are configured as a trunk and vlan 299 had the ip address for the eigrp connection: [code] This setup is working as each switch see's all of the other switches as an eigrp neighbor.  We have also made sure that the switch at our head office has spanning tree priority for vlan 299.
 
So the problem is, if there is a change in the topology at one of the locations it usually causes one or more of the other connections to go down for some reason.  We just cannot pinpoint what is causing this change.  There are no log's or anything other than an eigrp hold time expired message.?

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Cisco Switching/Routing :: 3560 - Trunk Port Recovery Time

Jul 10, 2012

I have a pair of 3560's configured with dot1q trunks between them carrying a number of VLANs.
 
Once deployed there will be a requirement for these physical trunks to be disconnected from time to time. Knowing that this is inevitable I am trying to minimise the period of time for the trunks to recover once the physical connectivity is reinstated.
 
All of the VLANs on the switches are configured for Spanning Tree Rapid PVST. Current time for the trunks/VLANs to come up is around the 4 second mark.

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Cisco Switching/Routing :: Implement Shaping VLAN Only On Trunk Link Between 6500 / 3560

Jan 2, 2012

I need to implement the shaping VLAN only on the trunk link between the 6500 and 3560. [code]

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Cisco Switching/Routing :: 3560 - What Happens When Voice Vlan Command Is Added To Trunk Port

Oct 11, 2010

Any way to test in a lab what would happen if a tech mistakingly added "switchport voice vlan XX" to a trunk port? I am try to do some RCA on an issue and this has been identified as a possible cause by one of my techs.
 
The config is Switch1------Switch2--------Switch3 Each interswitch connection is configured as a dot1q trunk with all vlans allowed. The link between switch2 and 3 is where switchport voice vlan 10 was added. Switch1 is a 3750 and 2/3 are 3560's.

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Cisco Switching / Routing :: WC2948G - Configure LACP Trunk And Multiple Trunk

Feb 12, 2012

we recently aquired a managed services job and have to do a overhaul of the vlan configs and have a whole dozen WC2948G's trunk between a set of ports as well as trunk out a LAG channel setup to non cisco equipment. the deal is the lacp-channel works properly on both ends but no routing of vlans between ports and between the lag trunk are working.
 
theres alot of settings in the config and im planning on clearing it and starting from scratch but before i do i want to know where my problem lies.

[code]...
 

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Cisco Switching/Routing :: Using SSH From 2960S (client) To Juniper SRX (server)

Oct 22, 2012

We're attempting to SSH from a Cisco 2960S to an SRX240, and are having some issues. The error we're seeing on the switch is: ops-switch1#ssh -l root 10.10.10.1. Any way to work around this on either the server or client side?

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Cisco Switching/Routing :: Integrating Catalyst 2960 With Juniper Core And VLans

Mar 7, 2012

I've just started a new job after a couple of years not touching cisco gear and been pitched in... My new employer has a network that's Juniper based. We've inherited a load of Cisco switches as part of the deal for hosting matches during the Rugby world cup (plus a load of Aruba wireless gear that promises to be my very own special millstone, but that's bye the bye.)
 
My task is to hang these catalyst 2960's onto our existing infrastructure via fibre connections.
 
On the Juniper switch, there are four vlans being pushed to the port the cisco's hooked into: Code...

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Cisco Switching/Routing :: 6500 / Connect A Juniper SRX Firewall To Core Switches?

Mar 17, 2013

Assume that we have 2 Cisco 6500 series which redundant via GLP, now my question is how can we connect a Juniper SRX firewall to our core switches?

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Cisco WAN :: 3560 / Layer 2 Trunk Over ISP MPLS?

May 4, 2011

I recently was asked to turn a routed link between our HQ and our DR Site into a trunked link to allow us to span our main Server VLAN up to the DR Site.I was informed by the ISP that owns the 100Mb Leased Line between the sites that the link was configured to pass dot1q traffic and I should just have to configure my links at either end as trunks to get the link to come up.
 
There is a Cisco 3560 at either end with Layer 3 routing enabled (obviously as this was a routed link previously).So, I scheduled an outage and configured either end as a trunk links as follows and repointed any routes from the /30 routed addresses to the management addresses of the switches on either side:

***For info VLAN 15 is the DR Site and VLAN 11 is the Server range at our HQ and was available on the connected switch***
 
interface FastEthernet0/24
switchport trunk encapsulation dot1q
switchport trunk native vlan 15
switchport trunk allowed vlan 11,15
switchport mode trunk

[code].....

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Cisco WAN :: Port Security Between Two Switches 3750 Or 3560 Using Trunk

Sep 2, 2012

Is it possible to use Port Security mechanism between two switch (3750 or 3560) ports while trunk has been configured? If it's not possible, is there any other way to ensure that no other Switch can be connected other then the one switch which has been configured/placed by a network engineer?

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Cisco Switching/Routing :: Nexus 5596 - VPC Keep Alive Over Non-VPC Trunk

Mar 19, 2012

We have setup a pair of Nexus 5596 L3 switches with 2 x 10Gbps LACP links between them to act as the vpc peer link. We also have another 2 x 10Gbps LACP links between the 5596 switches to carry non VPC VLANs, this is required to provide EIGRP routing between the switches and an upstream router.I have read that it is possible to setup the vpc keep-alive link over an SVI instead of the management interfaces. Is it ok to run the keep-alive SVI over the second LACP non VPC VLAN trunk or is it recommened to keep this seperate?

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Cisco Switching/Routing :: 2960 / Traffic In Same VLAN Goes Up Trunk?

Feb 11, 2013

I have 2 hosts, 1 plugged in fa 0/21 in VLAN 101 and another in fa 0/22 in VLAN 101 on our L2 Cisco 2960.  If I try and transfer files from either host the gig 0/1 trunk port on the 2960 leading tot he 3750 fa 0/1 port hits 100mb (using a real time bandwidth monitor tool), but why?  This VLAN is on the same switch, why does it go one way up the trunk to the L3 3750 switch?  The L3 3750 is the VTP server and the 2960 is a client.  I would of thought the traffic stays local.  The 2 hosts don't even have a gateway set.To sum up the typology the 2960 and 3750 are trunked using a single cable.  The 3750 hangs of a ASA firewall using SVIs.Here is whatthe traffic looks like when copying a file between hosts (2gb file).
 
3750 L3 Switch (VTP Server)
  interface FastEthernet1/0/4
description Trunk to Cisco 2960 Gig 0/1
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate

[code]....

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Cisco Switching/Routing :: 6509 Trunk To Port Channel

Apr 22, 2012

I have 2 Cisco 6509 switches linked together via single Fibre as a trunk.I want to change this to a port channel where I will add another 3 fibre ports to the port channel but what order do I do this to minimise any disruption.

1-Configure PortChannel and add the 3 new ports, this will bring up the Port Channel but what effect will this have on traffic currently going over the single Trunk link? Will spanning tree go mad, how will switches react?

2-Convert existing Trunk link to Portchannel then add in new ports to PortChannel, I guess in doing this there will be a small hit on traffic as it changes to a port channel.

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Cisco Switching/Routing :: Catalyst Express 520 - Trunk Configuration?

Jul 11, 2012

I am struggling with a CE520 and its smartports stuff.I have configured the following vlans :
 
1- data
100 - phones
 
I need to bring those vlans (both of them) to a Cisco 800 router. The port of the 800 router is already configured as trunk and accepts vlan 1 and 100.The cisco 800 has both vlan 1 and 100 configured with 2 ips on different subnets, and ip routing is enable (to route between two vlans). Also, no access lists are configured.I have configured one port in the switch as role "router" and connected to the router. The other ports are all configured as phone-desktop (phone vlan 100 desktop vlan 1).If I connect a phone and manually configure an ip (the phone gets automatically vlan 100), and try to ping the phone from the router, it doesnt respond. Alse vlan 100 is protocol down.I am guessing what s the right configuration as the link between the switch and the router should be a trunk link for 1 and 100 vlans, but it looks like is transporting only vlan 1.Also changing the port role to "other" when you can specify the native vlan and another vlan, the switch doesnt accept vlan 100 as additional vlan on that link.

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Cisco Switching/Routing :: 3750 To 4506E Trunk Connection?

Sep 26, 2012

Cisco 4506-E port configuration
 WESTERN-4506-01#show int g4/47
GigabitEthernet4/47 is down, line protocol is down (notconnect)
  Hardware is Gigabit Ethernet Port, address is 0022.554c.01fe (
fe)
  Description: Trunk to 425

[code]....
 
Cisco 3750 Configuration

interface FastEthernet1/0/1description 425Linkswitchport trunk encapsulation dot1qswitchport trunk native vlan 30switchport trunk allowed vlan 30,35switchport mode trunkswitchport nonegotiateswitchport port-security aging time 2switchport port-security violation restrictswitchport port-security aging type inactivitystorm-control broadcast level pps 300storm-control multicast level pps 300storm-control action trapmacro description cisco-desktopmac access-group AuthorizedHosts in
 
I have mac address' populated. I can see the device in layout on CNA with the proper name however cannot ping it.

4506 is 10.30.30.1
3750 is 10.30.30.2

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Cisco Switching/Routing :: 2960S - IPTV VLAN In Trunk QOS

Sep 22, 2012

I need to set QOS in our new network. We have connected 2 cities together with 700Mbit leased line. On each side we have Catalyst 2960S switches and between them is TRUNK for VLAN 10 and Vlan 20.Vlan 10 is for IPTV (fixed 400 Mb/s for CATV)Vlan 20 is for Internet (rest).Sometimes is happening that Vlan 20 takes more than 400 Mb/s for a few seconds and in this situation we have problems with CATV.Is there any way to make a guaranteed bandwidth 410 Mb/s for CAT - VLAN 10  on this swithces?

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Cisco Switching/Routing :: 3750 VTP (v3) Communications Not Working Through Trunk

Nov 8, 2011

I have a couple 3750 switches that I am trying to run VTP Version 3 on.one as primary and the other as "server" which implies secondary from my research. [code]Additionally, running a show VTP devices yields a "No VTP3 devices found" on both devices. Despite ensuring that the domainname and password match.I have a patch cable from Gi1/0/1 on switch one runnning to Gi1/0/1 which from what I read is acceptable on GigE.

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Cisco Switching/Routing :: Trunk Speed Between 6509 And NX7000

Nov 2, 2011

I have connected a 2 TP trunk between 6509 and nx 7000, as shown above. I am trying to have speed 1000 on both sides.If I set speed 1000  on 6509 Trunk disconnect. How to force speed 1000? [code]

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Cisco Switching/Routing :: Two 3750 L3 Switches Connected Via Trunk

Jan 29, 2012

I have client who has two distant offices with 3750 L3 as core (do all vlan routing for local office) and multiple L2 access switches with multiple VLAN’s connected to it. First 3750 is hub also connected to internet, second 3750 is spoke and acting as a router on stick. We have eigrp configured on both side ISP provided client 100Mbps link as a trunk with two vlan; vlan10 for voice and vlan20 for data. We assigned two small subnets to these vlans 10.15.17.0/29 and 10.15.17.9/29. Hub addresses are 10.15.17.1 and 10.15.17.9 respectively. How to force voice over VLAN10 and data via vlan20, but still do some load balancing? How to setup default route on second (router on stick) switch?

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Cisco Switching/Routing :: 2970 - Trunk To NetGear GSM7224?

Jan 16, 2012

I have a Cisco 2970 port 24 configured as a trunk port to handle all 11 vlans.  This switch is also plugged into a couple other Cisco switches all is good on that side.
 
Here comes the ODD ball of the bunch.  Since our wondeful execs wont let us buy anymore Cisco switches till our numbers get better they gave me this pos Netgear GSM7224.  I know this isnt a Cisco product but someone out these has been thru this before.

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Cisco Switching/Routing :: 2911 Out Of Box - No IP SLA Support And No VLan / Trunk

Jan 27, 2013

We bough an Cisco 2911 router, and as i see the "ip sla monitor" command is not supported. Which license/IOS upgrade should i buy the fullfill this. And i cant add a trunkport to the iunterface even cant add a vlan to interface. How do i a trunkport on the cisco 2911 router. ANd how can i do a vlan on a interface on the router.

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Cisco Switching/Routing :: 3550 - Set Up With 6 VLans And 2 Trunk Ports?

Oct 9, 2012

I have a test switch (Cisco 3550) that I want to set up with 6 Vlans and 2 trunk ports. I want to be able to access a virtual server conected to the trunk ports from the switch ports. Ports Fa0/1 to 8 are in a vlan port fa0/9 to 16 another vlan etc. Ports Fa0/47 and 48 are the trunk ports. This is a lab environment so the the switch is the only device being used.

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Cisco Switching/Routing :: 2960 - Ports To Put In Trunk Mode

May 10, 2012

I've previously used trunkports and vlans between my ASA and accesspoints, connected directly. Now I want to put a 2960S-24PS-L bewteen. Where should i define the vlans (in the switch or in th ASA?) and what ports to put in trunk mode? (the ones on the switch or the one between the switch and the ASA?)

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Cisco Switching/Routing :: Pvlan Trunk On CBS31X0 Switch

Dec 20, 2011

I need to configure a pvlan trunk on DELL enclosure with Cisco Blade Switch, to permit pvlan and a normal Vlan.But, when I want to enter "Trunk" on private vlan mode, I can´t, because only has "host" and "prominiscous" mode. [code]

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Cisco Switching/Routing :: 6500 / Each Port Is Trunk And Carry Same VLAN

Dec 6, 2012

can i have 4 links from an ESX server to 6500 , each link represents a trunk link carries each the same 2 VLAN , 100 and 101 , keep port-channel out of the picture , does it work well?

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