Cisco Switching/Routing :: 1000v VEM Not In VSM?
Feb 9, 2012
have a single host that refuses to register his VEM in VSM, I can see him in show svs neighbors and all other servers went in although a couple of them we had to do more than once but I have all indications it is working, have correct license, sees him, pings him, everything looks fine but from timeto time just get the message:
N1KVSM-B# 2012 Feb 10 15:45:32 N1KVSM-B %VMS-5-DVS_HOSTMEMBER_INFO: A host with name=[ky-dc1-esxi13.cajones.local] and uuid=[00000000-0000-0000-8000-0025b5010019] is added to the dvs. The host is not found as a module in the VSM configuration
So I even added him to the VSM configuration statically as VEM 7 the next available and nothing.
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Apr 17, 2012
Anyone got a single VSM (albiet in HA) managing two vDS split over two ESX clusters connected to a single instance of vCenter?
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Aug 28, 2012
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.
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Sep 2, 2012
I'm trying to configure VXLAN on 1000v but it not working between two esx.
As I followed the troubleshooting guide on Cisco's website I discovered the following error: Can't get uplink MTU: 4681 Here is the output of the "vemcmd show vxlan-stats ltl 50" command. Port LTL 50 is the VM's port.
vemcmd show vxlan-stats ltl 50
VXLAN Port Stats for LTL 50
Unicast Encapsulations: 0
[Code].....
I've set mtu to 9000 on the UPLINK profile (port-profile) and enabled jumbo frames support on the upstream switch.
Here is the output of show run: [URL]
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May 29, 2012
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.
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Apr 14, 2011
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.
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Mar 28, 2012
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
[Code].....
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Dec 21, 2012
In my lab I have only one ESX server. On this server I am running VSM and vCenter (appliance).I am trying to get 1000v working however everytime I try to migrate my ports I get the following error:Network configuration change disconnected the host '192.168.0.10' from vCenter server and has been rolled back.fault.NetworkDisruptedAndConfigRolledBack.summaryIt seems that it doesn't like the fact that vCenter lives on the same ESX host as I'm trying to migrate. How I could get this to work?
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Dec 18, 2011
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.
MKBE1NX1# sh snmp trap
--------------------------------------------------------------------------------
Trap type Enabled
--------------------------------------------------------------------------------
entity : entity_mib_change Yes
entity : entity_module_status_change Yes
entity : entity_power_status_change Yes
[code].....
Nothing about stpx... Is there some other way to configure more traps?
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Dec 21, 2011
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
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Jul 8, 2012
We currently have redundant FWSM's and are planning a migration to standalone ASA 5500 series firewalls. However, we have a complete VMWare environment and are looking at the Nexus 1000V. I understand the Nexus 1000V and VSG architecture and implementation, and I do understand that the ASA 1000V is designed for cloud environments. But I do have one question about the ASA 1000V.
Is it possible for an ASA 5500 series firewall to be replaced by an ASA 1000V? Basically, can an ASA 1000V be a sole firewall solution, or are ASA 5500's still needed? Is there a datasheet anywhere that compares the ASA 1000V and ASA 5500 series?
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Sep 13, 2012
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.
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Oct 3, 2011
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?
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Jul 18, 2011
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.
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Nov 6, 2012
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?
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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.
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Jan 29, 2013
I am buying a Nexus 5K (N5K-C5548UP-FA) with the layer 3 card (N55-D160L3 - Nexus 5548 Layer 3 - Daughter Card).The switching capacity of it is 960 Gbps but I know I should expect less doing the Layer 3 function (it will only be used with static routing).What switching/routing capacity should I expect? How can I estimate it? What else should I consider?
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Jan 11, 2012
we've had an issue with our network, we have 2 6509 connected with redundancy, which are connected with 2 x 4900 Switches, from which are connected to a ESX Chassis for visualization, the thing is that the ESX stopped working, and the 4900 switches, and the main core were suffering from overload, they hang on it very well, in order to stop the overload, one of the links to the ESX Chassis were disconnected from one of the 4900 switches. The CPU usage from the 4900 and the core(6509) went down below 40%, and then they started to migrate the virtual servers from the chassis to another 2 chassis that were added right after. They were actually working well, but suddenly the 6509 changed to the other supervisor after everything was OK. We were wondering what could have been the cause of this, maybe the virtual servers migrations, maybe the overload from the ESX ? We also had a few question, is there any need to reload the cores every few months as a planned task ? Because the cores have been up for more than 1 year. And also is there any kind of of tool to monitor the CPU status, or the status overall from the cores or the switches ?
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Oct 18, 2011
I am facing an isssues with 7609 for LAN switching , based on LAN (VRRP/HSRP) feature.Actually we are having ES+ cards (on 7609) and we are using multiple groups(say 350 vrrp groups) running on the router . the routers are connected as router 1>>> mux(which is working as switches)>>> router2
my questing are
1. does their will be "multicast packets" (for VRRP/HSRP group) "from backup router to Master router", when in stable state( ie when Master and backup are already chosen) , or the packet from backup to master should be unicast.I know for sure, the packet from master to back is multicast packets denstination to Multicast IP packet and To MAC address.I am not sure but I think from backup to master it should be multicast
2. what is frequency of these packets( from backup to master)
3. As i have multiper group on a single interface ( we are using q-in-q), when the connectivity from router's is broken, then does all the groups will muticast their active roll in the lan sengment "at once" or it will be in a groups say 100 groups at once, and after few ms few 100's and sone ( as is on OSPF or RIP)
we are in between troubleshooting I hope we get the ans( Actul problem we are seeing in the router's that we have 2 ports on active routers and 2 ports on standby router , but we are not seeing muticast on 1 port on standby router where as all other 3 ports are seeing multicast packets) [code]
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Sep 10, 2012
I would like to know if Catalyst WS-C3750G-48TS-E recognizes and understand Cisco VSS ( Virtual Switching System) . Is there a List available which tells us which Old Catalyst Switches or current switches understand Cisco VSS?
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Jul 4, 2012
We are in the process of switching our infrastructure of our routing/firewalls/vpns over to cisco. We are switching our first location and one of the issues I'm struggling with is windows authentication pass-through for internally hosted web pages. Meaning, user inside our network has the 2921 as their default gateway, they try to access a web page that is hosted on the internal network but is secured with windows authentication. In the past, because they are logged into the domain internally, the website authenticates and loads. After switching to the Cisco, it asks for a password even though they are logged in.
Because its the web server that actually authenticates I'm not sure why the router isn't allowing that to happen, but I can't think of anything else that could be causing this behavior.
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Apr 9, 2010
Does the nexus 7010 support virtual switching yet? All of the posts I have found from about a year ago say that it is going to be supported, but there were no dates listed. I heard the same thing from Cisco a while back, but haven't followed up with it.If it is supported finally are there any configuration guides available for it?
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May 12, 2013
I have the following devices :
-1 VM Host
-2 Layer 3 switches
I would like to provide full redundancy for all vlans being used by VM Guests on the VM Host as well as the management vlan being used by the VM Host.I have created two LACP etherchannel connections on the VM Host. Each etherchannel from the host consists of 4 ports spanning a single NIC. One etherchannel connection goes to a trunked etherchannel connection on switch 1, and the other etherchannel connection goes to a trunked etherchannel connection on switch 2.Switch 1 and switch 2 have an etherchannel connection between them that carries all of the vlans in the topology.Vlan 2 is the managment vlan. Vlans 3, 4, and 5 are vlans that VM guest systems will be using for normal data traffic.
I intend to use switch 1 as the VRRP active router and spanning-tree root bridge for vlans 2 and 3.I intend to use switch 2 as the VRRP active router and spanning-tree root bridge for vlans 4 and 5.The spanning-tree configuration is using multiple spanning-tree with two instances. Instance 1 has vlans 2 and 3 associated and Instance 2 has vlans 4 and 5 associated. I would like to have this topology be fault tolerant to the point where if one of the etherchannel links between the host and one of the switches goes down, (for example, if switch 1 was powered off) traffic will be automatically redirected through the other functional link. I believe that my VRRP configuration would allow for a fairly quick failover of layer 3 services, but I am not certain that my design will be functional at a layer 2 level.
What I am uncertain about is how spanning-tree will converge. I am assuming that the virtual switch on the VM host will not be forwarding any BPDUs being sent by either switch. Would either of the links connecting to the host be considered a redundant link by either switch?Would the link between switch 2 and the host be inactive for all vlans in MST instance 1 during normal operation?Conversely, would the link between switch 1 and the host be inactive for all vlans in MST instance 2 during normal operation? Would all links remain active for ALL vlans? Would this mean that some traffic may travel through switch 2 to reach switch 1 instead of going directly to switch 1?
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Jan 21, 2012
As per my understanding 6509 all slots are dual channel, so 9 slot * 40 per slot (20 g in and 20 g out) = 360 GB How cisco claim the 720 ?? What about the 6513 chassic switch fabric connection?
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Aug 6, 2012
It is said that the switching fabric of WS-C3750X-24T-E is 160Gbps.Could any body tell me what is switching fabric, any relevance or difference from forwarding rate?,Is there any document to know how will the switch reach the 160Gbps full switching fabric performance?
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Mar 21, 2012
I got Two Distribution Switches of Cisco 3750G. Each Distribution have two 3750G switches stacked. I also have one Cisco 3750V2 Access Switch connected to both Distribution. When I am checking for redundancy, I can only get redundancy test pass for one link not atall for other. If I have a link up with Distribution 1 only then its fine; but disappointment with Distribution 2 link. I can see that the switch priorities of Dist 2 is not correct ie. Master's priority is 10 and Member's is 15.
My question is that due to misconfigured priorities on Distribution 2 stack switches I am failing with redundancy if ONLY Dist 2 is up and Dist 1 is down.
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Sep 20, 2012
I am seeing a strange situation on my 6500 switch?By having snmp walk on '1.3.6.1.4.1.9.9.109.1.1.1.1.3' (== cpmCPUTotal5sec), I came to know that there are two processor and the cpu util for switching processor is gone to 88 % and some time creeps to 99 %.
snmpwalk -v2c -c "removes" sw6500 '1.3.6.1.4.1.9.9.109.1.1.1.1.3'
SNMPv2-SMI::enterprises.9.9.109.1.1.1.1.3.1 = Gauge32: 12 (--- this is for CPU of Router Processor )
SNMPv2-SMI::enterprises.9.9.109.1.1.1.1.3.3 = Gauge32: 99 (--- this is for CPU of Switching Processor )
but when I do sh process cpu on the console, all looks normal as it shows cpu utilization of RP. why the value is so high on the switching processor ?
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Jul 24, 2011
It is understood that sub-50 ms ERPS convergence can be achieved with certain HW/SW combinations.
1) What are the platforms supported (and with what FW/SW) has this been tested ?any results that can be shared?
2) Link failure detection in GigE on Copper is slower compared to GigE over "pure" Fibre; so no sub-50ms would be possible with Copper ring ports.is sub-50ms convergence achievable with "combo SFP ports" ?
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Oct 8, 2012
Lucien is a customer support engineer at the Cisco Technical Assistance Center. He currently works in the data center switching team supporting customers on the Cisco Nexus 5000 and 2000. He was previously a technical leader within the network management team. Lucien holds a bachelor's degree in general engineering and a master's degree in computer science from Ecole des Mines d'Ales. He also holds the following certifications: CCIE #19945 in Routing and Switching, CCDP, DCNIS, and VCP #66183
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Jan 17, 2013
My management has tasked me to give them a high level overview of the different switching we can choose for our new building.
This is what I know so far.4 Closets, each closet has 450 ports,One MDF room that is will contain one UCS Chassis and a Nimble iSCSI SAN.
I am working on the spreadsheet and it looks like this (Not totally filled):
2960s3560x3750x45064510Approx cost (Each, 48PORT, POE+, 10G uplink, Dual PS, IP BASE)
6K7K8K45K75KMax Capacity192432432192384Backplane speed206464520520ProLeast ExpensiveStackable to 9Stackable to 9ProDual PSDual PSDual PSDual PSDual PSProLayer 3 opt
Layer 3 optDual SupsDual SupsConExpensiveExpensiveConNo Dual PSConLayer 2 OnlyCannot stack more than 4
For the MDF I would like to use 2 Nexus 5548's with FEX's, and the layer 3 daughter board. For the IDF's I was thinking of two 4010's.
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Oct 7, 2012
I configure HSRP on Router 2951 as a primary router, and Router 2811 as backup router. But when I am switching off my Primary router the backup router is taking 2 mins to take over form primary router.
[code]....
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Sep 13, 2012
Why Cisco implements so much switching capacity in their switches Obviously,16 Gbps of permutation performance is too much for the 8,8 Gbits (24*200+2*2000) needed by ports so why they put so many bandwidth?
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Apr 11, 2012
The have around 80 staff and I think the current infrastructure is overkill for the size of the company. The current kit is old and they have no GB ethernet ports. They currently have:-
Core Switch:
1x Cisco c6509with a 48 port fast ethernet module (WS-X6248-RJ-45)
and an 8 port fibre module (WS-X6408A-GBIC)
I'm looking to replace this with something with 72 ethernet ports and 8 fibre ports
Access Switches:
2x 3500Replacement needs at least 48 ports and 2 fibre modules each
and 2x 5500Replacement needs at least 72 ports and 2 fibre modules each.
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