Cisco WAN :: Nexus 1000V - Why Is Private Vlan Config Options Missing
Jun 13, 2012
I just installed a N1K (with code 4.2(1)SV1(4a)) and I was trying to setup a private vlan.
Example:
vlan 300
name PRI-VLAN
private-vlan primary
[Code]....
I upgraded another n1k (that already had pvlan configured) to this version of code and it has the private vlan option. This was just installed yesterday so I don't have the license on it yet.
Having problem pinging from Host A on ESX1 to Host B on ESX2. Each host are assigned the same port-profile. If I put 2 host's on the same ESX machine using the same port-profile, they are able to ping each other.
n1kv-vsm# sh port-profile name xxx-prod-40port-profile xxx-prod-40 description: type: vethernet status: enabled capability l3control: no pinning control-vlan: - pinning packet-vlan: - system vlans: 1 port-group: xxxl-prod-40 max ports: 32 inherit: config attributes: switchport mode private-vlan host switchport private-vlan host-association 40 400 no shutdown evaluated config attributes: switchport mode private-vlan host switchport private-vlan host-association 40 400 no shutdown assigned interfaces: Vethernet3 Vethernet4 System-uplink profile is trunking all vlans.
We have a requirement for private VLANS for DMZ hosting within one of our datacentres. I just want to query how private VLANs would work in our environment.We have physical servers connected to fex ports (2 fex per rack for each 5k) of a 5548UP switch, virtual servers using the nexus 1000v (vmware hosts connected to fex ports) Out firewalls and load balancers are connected to an upstream pair of nexus 7ks using vPCs.My question is this, ordinarily the firewall would be in a promiscuous port but as these reside on a physically separate switch will the normal vPC trunk still be sufficient or would the "switchport mode private-vlan trunk promiscuous" be required on the vPC up to the northbound 7k.As these connections are already in production I do not want to affect the existing traffic that doesn’t use private VLANs.
We need to connect several DSLAMs on the 4900 switch, every DSLAM has 4 VLANs configured (VOIP service, MGMT, ADSL Private, ADSL Public), and sends the traffic for each service tagged with appropriate VLAN id according to the table:
On the DSLAM side it is very simple configuration, just a normal trunk with 4 VLANs transversing the link. On the 4900 I need to isolate the traffic for ADSL PRIVATE & PUBLIC service so DSLAMs connected to the same switch do not have L2 connectivity between them. For VOIP and MGMT they must communicate with each other. DSLAM acts also as a VOIP GW so it must communicate with other DSLAMs for VOIP service. Also VLAN 200 is configured on ME 4900 for switch management traffic.
This 4900 Switch connects to MPLS PE router, which offers L3 VPN service for VOIP & MGMT service, and L2 VPN for ADSL service (PPPoE traffic to BRAS). Fortunately we have ES+ linecard to support many ethernet features. I tried this config:
1) VOIP, DSLAM-MGMT, MPLS-MGMT configured as normal VLANs 2) ADSL PUBLIC & PRIVATE configured as isolated secondary VLANs, primary VLAN for ADSL PRIVATE is 2008, for PUBLIC 2308 3) Configure DSLAM facing ports on ME 4900 as private-vlan trunks 4) Configure ME 4900 uplink port to MPLS PE as a private-vlan promiscous trunk 5) Configure ethernet services on MPLS PE for each tag that comes from ME 4900 (ES+ cards are awesome, i love them:D ) 6) Apply L3 VPN service for VOIP and DSLAM-MGMT, and L2 VPN for ADSL service.
But at least this last command should list on spanning tree forwarding state also the ADSL VLANs or not?
Here is the output of the show interface switchport.
I have the need for private vlans in isolated mode to backup some hosts on a secured network. We are using Cisco Nexus 5020 with the fex 2148 for copper-ports - and I tried to implement this setup: [code]
The Cisco Nexus 2000 Fabric Extender does not support PVLANs over VLAN trunks used to connect to another switch. The PVLAN trunks are only used on inter-switch links but the FEX ports are only meant to connect to servers. Since it is not a valid configuration to have an isolated secondary VLAN as part of a Fabric Extender port configured as a VLAN trunk, all frames on isolated secondary VLANs are pruned from going out to a FEX.
the "only" limitation should be the trunk option - but as far as I can see from the output from my nexus this is not correct .We are running NXOS: [code]
I have defined a trunk between a nexus 5k and cat 3750 as a pvlan trunk - now I would like to add redundance and performance and tried to establish a vpc between my par of nexus's and the 3750 stack - but the nexus tell me that the port-channel doesn't support pvlan's - and then - ehh - do I get any benefits of running the trunk as a pvlan trunk at all?
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.
I want to apply QoS policy on a particular VM for specified port range only. I have created following script file but that doesnt work. I mean it doesnt apply any policy on vm residing on Veth1.
config t ip access-list acl_in 101 deny tcp any any eq 443 exit
in permenantly removing the "private browsing" option in the new Mozilla FireFox internet. I use Windows Vista for home computer and obviously Mozilla FireFox for internet usage. I am not good with too many computer terms, the more basic the better. I've seen other places discuss how to remove it completely, have it not be an option, from Internet Explorer but not Mozilla. I have children in the home that I don't want to have access to it. Just easier for our situation to not have it.
how do i set limit on the log file size in ACS 5.3. I had the same issue with Nexus 1000v but there is a command that enables you to set log file nane and size. it is getting bulky.
I want to configure snmp-traps regarding stpx (root-inconsistency, loop-inconsistency) on a Cisco Nexus 1000V. The command "show snmp traps" lists stpx as a trap that could be configured and which is not at the moment.
Nexus1000V and I was wondering if there is a way to limit snmp access via access-list on the RO/RW community, as can be done on IOS. I can't find anything relevent on the Reference Pages
According to the note at the bottom of a VMware KB Article "Cisco Nexus 1000V and VMware vCloud Director 1.5,"
"Note: You are must use the Cisco Virtual Network Management Center (VNMC) virtual appliance from Cisco. This is a separate products and needs to be licensed from Cisco."
Is this actually the case? I know you could use portgroup based network pools with vCD 1.0 and 1kv. Can I use the 1kv with VLAN-backed network pools in vCD 1.5 without the Virtual Network Management Center or is it required?
how to add tacacs custom attribute to ACS 4.2 for Nexus 1000V:shell:roles="network-admin admin-vdc"In the interface configuration I've added new service, service - shell, protocol - tacacs+.In the group settings I've enabled this attribute configuration. And it is not works. Default privilege level is assigned to any user with access allowed.
We are trying to install the latest version of Nexus 1000v to ESXi5.1 and the installer application is much better than the previos one, but we are having problems with implemetation, because deploying of OVA file times out.
First attempt: Nexus-1 was successfully deployed on ESXi-1, but Nexus-2 which should be deployed on ESXi-2 returned an error: "Deploy OVF template":"Operation timed out." Second attempt: Deploying of Nexus-1 returned the same error Third attempt: The same as the first attempt.
It looks like that there is a time limit which is used for deploying OVA file and since file needs to be uploaded to ESXi it takes too long, so the installation fails. Is it possible to extend this time?
According to Cisco, Nexus 1010 can host up to (6) Virtual Service blades. I can't find out how many Virtual Supervisor Modules and Virtual Ethernet Modules that make up one Nexus 1000v switches can be supported by each Virtual Service Blades. In other words, how many Nexus 1000v switches can be created with Nexus 1010 appliance?how to configure Nexus 1000v switches with vmware. without Nexus 1010, the standalone nexus 1000v switches was configured from vCenter as an OVF. But how to configure Nexus 1000v switches with vmware where nexus switches are hosted on Nexus 1010 appliance.
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])?
regarding PVLANs and the Nexus, my understanding is that we cannot configure Private VLANs on a FEX trunk port with a NX-OS release older than 5.1(3)N2(1) for the Nexus5548... Is there any known workaround for this limitation (appart from performing a SW upgrade)?
We have ordered the following 10 line items , but only got 3 licenses , unless the 3 licenses somehow have all the licenses integrated into the 3 part numbers below, but I suspect not.
Licenses attached from Cisco:-
N7K-C7009-XL-SBUN Nexus 7009 Scalable Feature License x 1 N7K-C7009-SBUN-P1 Inc LAN,ADV,TRS,EL2,DCNM,DCNMSAN,MPLS,SAN,XL -Promotion x 1
I've configured N7K to export layer 2 flows. Using 2 different flow collectors (open source and commercial), gaps/drops in the reported traffic are observed on a periodic basis.Problem doesn't seems to be with the exporters, hence I wondering if netflow configuration on N7K can be tweaked to address this symptom. Using the 'show exporter' command, no errors/drops are observed. [code]
I installed mpls feature set in N7K.I was able to enable feature l3vpn.Then, I tried enabling feature ldp. license not installed. ldp feature will be shut down after grace period of approximately 120 day(s).
I don't see any TRANSPORT_SERVICES_PKG in the NX-OS licensing guide.However, there is LAN_TRANSPORT_SERTICE_PKG. But I believe this is not for LDP.
I m trying to setup a Tacacs config onto my new NEXUS 5000 series.Nevertheless the authentication doesn't work.Actually I followed the config guide but something is not working or missing.I have setup everything through VMWARE with ACS installed on a Windows server.
I have a small doubt with Nexus 7k,5K,2k & 1K.We want to backup the running config to my desktop through tftp.When i tried to backup from Nexus switches showing like below Nexus 7K. [code]
It's showing two choices which one I have to follow "copy running-config startup-config" or "copy running-config startup-config Vdc-all". [code]
It's showing two choices which one I have to follow "copy running-config startup-config" or "copy running-config startup-config fabric"
It's showing three choices which one I have to follow "copy running-config startup-config" or "copy running-config startup-config fabric" or "copy running-config startup-config vdc-all". [code]
we are planing to run HSRP on our Nexus 5ks (with L3 card) and we use VPC to connect the downstream UCS - Fabric Interconnects to the 5ks. I was wondering if the peer-gateway command is required under the vpc domain config? When you use HSRP with VPC, both the active and standby HSRP peers can forward layer3 traffic, isn`t that the same that peer-gateway would achieve?
I have 2960 cisco switch. I want to configure private vlan. But it is not getting configured in cisco 2960. Is there any other way to configure that in switch.
know if Private Vlans are supported on the Cisco 4900m switch when set in VTP version 3 and VTP disabled?Most documents just specify VTY transparent mode without mentioning the version, trying not to assume since this is production.
I am using a couple cisco sg300 28P switches along with a sonciwall firewall/router. The sonicwall was already in place and working so they didnt want to replace it. I understand how to configure the vlan on the sonicwall, but could use some info on the cisco. I would basically like to create 3 vlans, 1 default for management, 2 for pc's on lan, and 3 for the cisco spa504g phones/'voip. Would i just go into the vlan managment, configure the 2 new vlans and give them two id's? These offices have one network drop, so the phones and pc's will be sharing the switch ports, however the phones have a setting to configure the vlan id so they know which one theyre on. Is there anything i need to do after that? I want to make sure that vlan 3 has the highest priority becuase its voice, is there some qos configurations i need to make on that switch as well? Also, the port that links the two cisco swtiches together, does that need to be set as "trunk" port? I understand what vlans are, but its just the first time ive run into these cisco models. .
Is it possible to assign 2 ports to a vlan on this switch and have the 2 machines connected to those ports be able to see each other without having to go off of the switch? If so, how would it need to be setup on the switch?