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 :: 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 :: 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 :: 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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Cisco Switching/Routing :: 2960 / Verifying Trunk Vlan Tagging?

Jul 5, 2012

I have a 2960 switch connected to another. The I need to verify that vlan0010 on one switch is forwarding tagged traffic between the other switch it is hooked up to through the Gi0/1 port. How do I verify this? I have a server that's multihomed (Broadcom) on the other side an it is supposed to be on this vlan with one of it's network interfaces. We had a pwer outage and now it cannot communicate on this vlan. However, everything else on the vlan can reach all the other nodes accept this server in the front of my building. All the devices in the same room are linked to the same switch which has one port (fa0/17) on vlan0010 and can ping eachother just fine. The server is hooked to port 24 on my server room switch and Gigabit port one goes to a fiber converter all the way to the back. It then gets converted from fiber to cat5e again and links into the switch (2960) in the backroom.

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Cisco Switching/Routing :: QoS Limit Specific VLAN Within Trunk 4506

Jan 25, 2012

Need to limit the amount of bandwidth a specific VLAN can use on a 802.1q trunk port. Situation is that we have a pair of Catalyst 4506 switches which have 802.1q trunk ports into a Checkpoint Firewall, this in turn is connected to a managed WAN router (to which I can't apply a QoS policy).If the 4506 was routing the traffic it would be easy to setup a class-map to match the IP traffic and then QoS the traffic, but the VLAN in question is trunked directly into the firewall (no L3/IP presence on the 4506 next hop for all clients on this VLAN is the firewall).What I need to do is restrict any traffic from this specific VLAN to 10Mbps on the uplink to the Checkpoint Firewall so it cannot impact the onward WAN.

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Cisco Switching/Routing :: 4096 - Limit Number Of Vlan Trunk

Nov 15, 2011

a number of vlan on trunk is 4096, can I limit this number? I need trunk pass only 10 vlans.

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Cisco Switching/Routing :: 6513 To 3750 Vlan Trunk Connectivity

Nov 8, 2011

Currently we have a 6513 core (running IOS and doing limited routing) with VLAN Trunking to about a dozen 3560 edge switches, with various VLANs going to each of the edge switches.  All works well.  We are downsizing and replacing the 6513 core with a 3750G stack.  We have the stack up and running in the lab, and want to slowly (as we move floors) migrate all of the edge switching to the 3750 stack. 
 
The plan is to connect the 3750 stack to the 6513, then slowly migrate the edge switches to the stack (from the 6513).  I would like to put in place 4 x 1GB trunk links between the 6513 and the 3750 stack before I start moving edge switches to ensure adequate bandwidth.  Once all of the edge switches are on the new 3750 stack, I will start to decommission the 6513.
 
What is the best way to configure the links between the cores (old 6513 and new 3750 stack)?  I can easily get the edge switches configured to the 3750, but am worried about the core links.  I really want to avoid having to perform an all-at-once cutover of the cores.  Another question is when do I try and migrate the VTP server role from the 6513 to the 3750 stack?  I could simply make everything transparent, and ditch server-based VTP, as we rarely change or creat VLANs.

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Cisco Switching/Routing :: 6509 - Can't Change Native Vlan On Trunk Port?

Jun 6, 2012

I have several closets with Cisco 3560 on the edge that I'd like to change the vlan that's used for the management vlan on each. In the core I have a Cisco 6509 with Sup720's.
 
I'd like to do this by changing the native vlan on the trunk port on the core 6509 interface that connects to the 3560. and leave the management vlan on the 3560 as vlan 1.
 
Seems trivial but what I tried didn't work and I didn't have the window to troubleshoot. I'll paste the simplified configs for  the interfaces  below
  
!
6509 configs:
!
interface Vlan50ip address 172.16.50.2 255.255.255.0!interface FastEthernet

[Code]....

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Cisco Switching/Routing :: 6500 - Adding VLan To Trunk In Port Channel

Jan 20, 2012

I need adding a vlan to the trunks bundled in port channel. I know how to add v lans to a port channel with Cisco IOS but with CAT OS.

I have 2 ports bundled to form ether channel in switch which is running CAT OS. There are already few v lans allowed in the trunk of each interface. now I need to add one more v lan.

For Example:- 
v lan 135 needs to be added in addition to the existing v lans.
 
clear trunk1/2 1-112,115,117-134,136-4094
set trunk 1/2 on dot1q 113-114,116,135
 
and similarly on the 2nd interface
  
so if I add vlan135 to the trunk one after another will it cause any service disruption?

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Cisco Switching/Routing :: Adding Vlan To Trunk Drops HP Switches 3750 Behind

Nov 13, 2012

I have a 3750 as a core and have a series of HP Procurve switches that are daisy chained using one port.  I have two vlans on the port now (6 &9) and everything works fine, all switches communicate and end devices on the switches are also talking.  There is a requirement to add a device towards the end of the chain which requires it to connect using Vlan1.  Once I add Vlan1 to the port onthe 3750 I lose connectivity to all the HP switches.

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Cisco Switching/Routing :: Create Two Trunk Links Between 4506 And 4948 And Allow Vlan 540?

Sep 24, 2012

Current Situation:We are able to reach server IP -10.203.206.40  from our 4948 switch vlan 10.30.1.0/24 through the Layer 3 interface between 4506 and 4948.  
  
Requirements
==========
 
1) Now we would like to add one more L3 interface between 4506 & 4948 for redundancy purpose.
  
2) Make available Vlan 540 in 4948  from 4506... need to create two trunk links between 4506 & 4948 and allow vlan 540.

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Cisco Switching/Routing :: Create New Vlan On 3750 Switch With Trunk Mode

Jan 16, 2013

This is regarding VLAN creation on C3750E switch.I want to create new Vlan 94 on this switch and also I want to allowed same interfaces like Vlan 95 & Vlan 96. [code]

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Cisco Switching/Routing :: 2911 Can Support Ip Service Image

Feb 29, 2012

i want to check if cisco2911-sec/k9 can support IP service image? what PAK(license) can be bought to activate the IP service feature set?

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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 :: Private Vlan / Etherchannel And Isolated Trunk On Nexus 5010

Feb 9, 2011

I'm not sure if I'm missing something basic here however i though that I'd ask the question. I recieved a request from a client who is trying to seperate traffic out of a IBM P780 - one set of VIO servers/clients (Prod) is tagged with vlan x going out LAG 1 and another set of VIO server/clients (Test) is tagged with vlan y and z going out LAG 2. The problem is that the management subnet for these devices is on one subnet.
 
The infrastructure is the host device is trunked via LACP etherchannel to Nexus 2148TP(5010) which than connects to the distribution layer being a Catalyst 6504 VSS. I have tried many things today, however I feel that the correct solution to get this working is to use an Isolated trunk (as the host device does not have private vlan functionality) even though there is no requirement for hosts to be segregated. I have configured:
 
1. Private vlan mapping on the SVI;
2. Primary vlan and association, and isolated vlan on Distribution (6504 VSS) and Access Layer (5010/2148)
3. All Vlans are trunked between switches
4. Private vlan isolated trunk and host mappings on the port-channel interface to the host (P780).
 
I haven't had any luck. What I am seeing is as soon as I configure the Primary vlan on the Nexus 5010 (v5.2) (vlan y | private-vlan primary), this vlan (y) does not forward on any trunk on the Nexus 5010 switch, even without any other private vlan configuration. I believe this may be the cause to most of the issues I am having. Has any one else experienced this behaviour. Also, I haven't had a lot of experience with Private Vlans so I might be missing some fundamentals with this configuration.

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Cisco Switching/Routing :: 2950 - Private VLAN Across Trunk To Older Model Switches

Mar 7, 2012

I am looking into the possibility of using private vlan's for some dmz implementations however I do have what may be some very rudimentary questions. It seems straightforward how to configure the primary/secondary vlan configuration as well as associating them. However in my case I would be looking to configure the PVLAN on a 6500-vss platform acting as the router while all of the hosts which I would desire to have in the isolated vlan would be spread out across a number of older Cisco switches which only support "protected port" setup or Procurve switches all of which I do not have budget to replace with something newer. So in my scenario I would have a 6500 connected by trunk to multiple switches which only support a protected port setup such as a Procurve (top of rack) or a Cisco 2950. As the Procurve or 2950 would not support Private VLAN setup, do I then just configure the secondary vlan to be allowed across the trunk from the 6500, configure that vlan on the Procurve or 2950 (as vtp will not foward the info for the secondary vlan) and assign that vlan to the host port as well as setting it as a protected port and this will communicate just fine across the trunk to the router as well as stopping the protected port in top of rack switch 1 from being able to communicate to a protected port in top of rack 2,3,etc? If the above scenario is what needs to be done, do I just use a regular trunk or do I have to use a PVLAN trunk?

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Cisco Switching/Routing :: 2911 / 3750 - Allow Email To Two Servers On Different Vlan?

Mar 24, 2012

I have a network with the following structure
 
internet ---- cisco2911 ----cisco3750 --- internal lan
 
I have two email servers on different vlan
 
192.168.0.1    ----- 1.1.1.2 (public ip)
10.1.1.65  ---- 1.1.1.3 (public ip)
 
Before these servers were directly connected to the internet with two nics (Nightmare, I know). The Public IP on internet facing NIC and private ip on LAN facing nic. I'm in the process of changing this.I'm able to access internet from my vlans and also able to send emails but cannot receive emails on these servers.
 
My router congif is as follows:

Building configuration... 
Current configuration : 6234 bytes
!
version 15.1
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone

[code]....

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Cisco Switching/Routing :: 2960S / 2911 / ASA 5510 - VLAN Can't Get To Internet

Sep 24, 2012

Have multiple Catalyst 2960S switches, Cisco 2911 router and ASA 5510 firewall.
 
On the router have subinterfaces created for the VLAN's Int FA0.0/41 for wirless VLAN setup with IP 10.10.41.100 Int FA0.0/60 for new Voice VLAN setup with IP 10.10.60.100 Internal network is 10.10.10.0/24 and LAN IP of router is 10.10.10.100 Have default route setup to push traffic from the router to the firewall ip route 0.0.0.0 0.0.0.0 10.10.10.251
 
On the firewall have added the new VLAN 10 (10.10.60.0) to the network object-group Have configured route inside command route 10.10.60.0 255.255.255.0 10.10.10.100 1 Have also added the NAT command nat (inside) 1 10.10.60.0 255.255.255.0
 
On the 2960 I have my laptop connected to port 45 and I have it configured as follows switchport mode access switchport access vlan 10
 
I assign my computer a static IP address of 10.10.60.84/255.255.255.0/10.10.60.100 with 10.10.10.11 as DNS server.  When I do this, I can ping anything on the 10.10.60.0 network, I can ping anythign on the LAN 10.10.10.0 network.  I am able to connect MSN messenger, I am able to do NSLOOKUP and get outside IP addresses to resolve. I am unable to browse the Internet though.  I am not sure where the problem is at though.  It doesn't make sense to me, as it is setup the same way as VLAN 41 which is the wireless network, and when users connect to that, they get out to the Internet with no issues. 

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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 :: Does 877 Support Vlan

Jan 28, 2012

Coincidentally when i tried to configure router 877 as an adsl router i found that a vlan configuration is included. my question is what is the benefit of using vlans in router ??? i studied that we use it in switches for the purpose of network enhancment from broadcasts and  netwrok segmentation. why we use vlans in routers ?

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Cisco Switching/Routing :: Does Catalyst 3550 Support Inter Vlan Routing

Jul 24, 2007

Does Catalyst 3550 switch support inter vlan routing ?

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Cisco Switching/Routing :: Nexus 5010 Support For Inter VLan Routing

Jan 10, 2012

Can nexus 5010 supports inter v lan routing , as there is no core switch and router available in current network.

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Cisco Switching/Routing :: 2960 Support Multiple Vlan Per Port?

May 21, 2012

We're going to be switching some of our gear from Foundry to Cisco, and were looking at the WS-C2960S-48TS-L.  We currently have 3 different VLAN's, and I wanted to have 1 uplink back to our firewall (ASA 5550) and then let the firewall do the routing between the subnets.  I realize that 1 link will carry the traffic twice then, but is that possibly with those switches to have all three vlans assigned to one port and then just let the firewall do the routing between the vlans or would I need to have 3 uplink ports back to the 5550?

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Cisco Switching/Routing :: Vlan Support For 1721 Modular Router

Jan 15, 2012

I would like to know can we configure vlans with cisco 1721 Modular Router? Is it Possible to configure lan environment with the vlans configured in 1721 router without a managed switch?

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Cisco Switching/Routing :: Possible To1941 Security Bundle Router Support Minimum Of 2k Of VLAN ID

Dec 17, 2012

Is it possible to cisco 1941 security bundle router Support minimum of 2k of VLANs ID and shall support upto 60 vlans?

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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 VPN :: 5520 L2 VLAN Trunk Over VPN

Feb 16, 2011

i would like to setup a L2 VLAN trunk connection over a VPN. I hear this can be done with a GRE tunnel. I currently have Cisco MWR2941's that i would like to configure the TRUNKs on then push them over a 5520 VPN ( IPSEC Tunnel ) to a 5510. on the other side of the 5510 i will have another MWR2941 to recieve the trunk.
 
how to configure this trunk or some configuration ideas?

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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 :: Obtaining Vlan On Trunk / Port

Jun 29, 2012

I'm trying to obtain the vlans on a trunk and also whether the port is a trunk. Ive seen VTP mib, but these dont appear present on my switch (2950).

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Cisco Routers :: VLAN To VLAN Firewall Rules Support Missing On RV180?

Jan 12, 2013

How do I submit an RFE (Request For Enhancement) to the Cisco SBR team to encourage them to  implement the missing support for VLAN to VLAN firewall rules that was available in the RVS4000 (See [URL]) and that was supposedly added to a beta release of the RV220W firmware (See  [URL])?

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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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