Cisco Switching/Routing :: Nexus 7K Out Of Band Management Interface?

Dec 8, 2012

regarding to the out of band Management interface , if I configured an intervace vlan to be as a managment interface for one vdc ( the default vdc ), when I connected to this vdc via telnet , can I switch to any other vdc ?  ( suppose that I have the Admin role which allows me to enter and config all the vdc's )If that is possible so that I dont have to make a dedicated managment ip for each VDC I need to do that only if I want to make vdc admin's account to allow some users to access specific vlans only , is that true ?

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Cisco Switching/Routing :: 5596 Nexus In-band Management With SVI

Apr 16, 2013

i have: two nexus 5596 connected each other the mgmt0 is NOT in use SVI for keepalives with IP address and /30 netmask vpc-keepalives running over fiber in e1/1. this works well uplinks to datacenter distribution switch (Cat 6500 VSS) over fiber on port-channel 1 (e1/2 and e1/10), also carrying the management VLAN (vlan 14). SVI with an IP address for management purposes
 
I can't get this to work. i can ping my whole network from the nexus, but not the nexus from my network. also pinging inside the mgmt vlan is not possible.

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Cisco Switching/Routing :: Nexus 5548UP - Management Interface

Apr 21, 2013

How separate is the management interface on a Nexus 5548?
 
In context - what's the risk of having a layer 2 only Nx5K in a DMZ and running the managment ports down into an internal managment VLAN, to form peer-keepalive links and software upgrades.

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Cisco Switching/Routing :: Management Interface On Nexus 7010?

Apr 28, 2013

We have a couple of Nexus 7010's split into Core and Distribution VDCs. MGMT0 interfaces on each of the Nexus VDC's (including the Admin VDC) are configured with different IP address, but on the same subnet i.e 10.10.10.1/24 for admin, 10.10.10.2/24 for Core and 10.10.10.3/24 for Distribution. The MGMT 0 physical port on each Nexus is connected to a physical gig port on a 3750 X switch, and the 3750X has uplinks back to the Nexus configured for vPC.
 
When i ssh to the VDC MGMT0 IPs from the 3750X, i can access each of these VDCs without any problems. But if i enable routing on each of these links(OSPF) and advertise it to the WAN, i cannot see these routes advertised and also cannot see any of these routes in the local routing table.Just wondering if i have to enable these links on a VLAN and then advertise it to the WAN..But if this the case, VLANs cannot be created  on the Admin(default VDC).

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Cisco Switching/Routing :: 3750X Out-Of-Band Management Port?

Nov 11, 2010

What is the point of it? It is not a remote console. If i reboot the switch i cannot get back to the out of band management port unless the switch is fully running. Is this only for security purposees? so all telnet/ssh is from an Out of band network?

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Cisco :: 3750X Management Interface Out-of-band Default Gateway

Aug 31, 2012

I've got a 3750X, IOS 15.0 IP Base license, reset to factory defaults, and I want to use the FastEthernet0 out-of-band management port on the backside next to the console port. The idea is that this port should provide a management interface that does not participate in the routing table. Problem is, contrary to the documentation, that configuring an IP address on the interface does make it show up in 'show ip route'. So it's still part of the routing table. Also, I'm unable to find the commands to change this and set a default gateway for just the management interface. I'm pretty sure this has to be possible, I remember seeing something similar on an ASA once. The 3750 configuration guide on Cisco.com does not seem to mention it.I considered using VRF but it's an IP Base license, no VRF.

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Cisco Switching/Routing :: Configuring Management Of SVI / Nexus 5548?

Aug 15, 2012

I want to configure management for some Nexus 5548's?I wanted to manage the switches via an SVI.  I have read the following document which gives details about the Management SVI but doesn't answer all questions.[URL]I am not running any layer 3 functionality on the switch, no layer3 license (which it mentions in the above link) Will I still be able to create a management SVI.  I know I will need to enable the feature 'interface-vlan' to setup a Management SVI, does that require a license?

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Cisco Switching/Routing :: Nexus 5548UP / Two Management Interfaces For N5k

Jan 10, 2013

I have a Nexus 5548UP that would be managed by two organizations. Is it possible to set IP addresses for mgmt0 and an SVI (or an L3 interface) without using the L3 daughter card? I don't want to route between VLANs, just to separate management traffic.

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Cisco Switching/Routing :: Setting Up Nexus 5000(s) For Inband Management?

Feb 12, 2012

we do not have an out-of-band management network and setting one up at this point is not being planned.  We are mainly a swtiched environment and the only devices that are using L3 are the core switch for WAN purposes and the lab because it is mimicking the production environment.  I have two Nexus switches that are sitting on the other side of a 3750 switch which is currently acting as a L3 device because this is a pre-production environment for a new project.  We had an issue with management of the devices before but our workaround was to put them on the management vlan direcltly off of the core, allowing only management traffic to pass by means of mgmt0 on each device.  The problem I'm having now is that I've now setup the mgmt0 interfaces on both for the keepalive link for vpc only (vpc traffic is going accross 2x10gb connections and the link to the 3750 is 1gb each trunked) and have lost my ability to use the mgmt0 connections for management. How to connect my management connection through either the 3750 or directly off the core switch (as that's what will happen once it's put into production)

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Cisco Switching / Routing :: 3560 - Accessing Management Interface Using Layer 3 Link

Apr 9, 2012

I am setting up a link between buildings that uses wireless links. I'm using Layer 3 routed ports on 2 3560 switches to handle the routing between sites. Normally I would just put these in a /30 and then the switches handle the rest. However, the wireless access points have a web interface for managing them that I want to be able to access, but it's only available on the single NIC that also carries traffic. What would be the best way of making this work? Should I make the link a /29 and give the access points an IP in the same range? If this is the case what do I use for the default gateway for the access points?
 
I have included a diagram to try to explain the issue clearer. The IP addresses in black are what I would do if this were a standard cable (and indeed this will work, but I wont be able to access the admin interface of the wireless AP) and the red ip addresses are the alternative if I use a /29 (but as I said, I'm not sure what to use for the default gateways).

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Cisco Switching/Routing :: Configure Sub Interface For Nexus 7k?

Jan 11, 2013

how do we configure sub interface for nexus 7k?do we have to issue ma-address command under physical interface and than configure subinterface? if yes than what do we have to type the mac address for "mac-address" command?I can doing and than configure subinterface but the interface/subinterface didn't come up. do we have to bounce it couple times to bringe it up?

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Cisco Switching/Routing :: 40G Interface On Nexus 3064?

Jun 18, 2012

I want to bring up 40G interface between two nexus 3064 over the fiber but it's not coming up. Have configured the switch for 48*10G and 4*40G. I'm using QSFP on both the switches, OM3 straight fiber cable with MPO connector. The interfaces are not coming up. Notably, it comes up with Coax 3M cable. So it's fine with coax but not with fiber.

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Cisco Switching/Routing :: Not Able To Assign Access List To CMP Interface Of Nexus 7K

Feb 6, 2013

I am trying to harden my Nexus box and I am not able to ACL assigment command. Following are the commands I am trying to add.

interface cmp-mgmt module 5
Ip access-group NETWORK_MANAGEMENT_ACCESS in

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Cisco Switching/Routing :: Ping Loss On Nexus 3k But No Error Under Interface?

Mar 4, 2013

I'm facing a problem regarding loss of ping packets when i do ping test from nexus3k to another nexus3k connected directly.however there is no error counters on the interfaces on both of devices.the ping failutre is occurring only whenever i do ping test with a large number of ping packets.I don't see the ping loss symptom with default ping test (default ping test is 5 packets).
 
H/W : N3K-C3548P-10G
S/W : 5.0(3)A1(1) 
nexus3k# ping 1.1.1.2
PING 1.1.1.2 (1.1.1.2): 56 data bytes
64 bytes from 1.1.1.2: icmp_seq=0 ttl=254 time=2.732 ms
64 bytes from 1.1.1.2: icmp_seq=0 ttl=254 time=2.732 ms

[code].....

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Cisco Switching/Routing :: Getting Nexus 5000 Command (default Interface X / X)

Jun 26, 2012

when will be the command "default interface x/x" on the Nexus 5000 platform available? Even with latest software version (5.1.3.N2.1a) it is not possible. For Nexus7000 it's working fine with 5.2 train.Is there a feature request for it? If not here it is!!It's horrible to deconfigure many interfaces especially in N5k environments with many FEXes.

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Cisco Switching/Routing :: Nexus 5000 Interface - Data Transfer Low

Jun 6, 2012

Customer  production environment is nexus 5000 use 1 G interface * 4 and config Port-channel  ( LACP ) uplink to C3560 , The port channel link is 802.1q trunk , but Data transfer is low , the sh int display as follow :
 
Why transfer performance pool and how to fix
 
N-5548UP# sh int ethernet 1/30Ethernet1/30 is up  Hardware: 1000/10000 Ethernet, address: 547f.ee14.ed25 (bia 547f.ee14.ed25)  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,     reliability 255/255, txload 1/255, rxload 1/255  Encapsulation ARPA  Port mode is trunk  full-duplex, 1000 Mb/s, media type is 10G  Beacon is turned off  Input flow-control is off, output flow-control is off  Rate mode is dedicated  Switchport monitor is off  EtherType is 0x8100  Last link flapped 9week(s) 6day(s)  Last clearing of "show interface" counters 20w2d  30 seconds input rate 152 bits/sec, 19 bytes/sec, 0 packets/sec  30 [Code]...

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Cisco Switching/Routing :: Nexus 7000 Determining Jumbo MTU Size On Interface

Feb 7, 2011

I am trying to determin if Jumbo frames are enabled on out Nexus 7000, and I am getting mixed info back from the swtich.I looks like the system jumbo MTU size is 9216 by default, but the interfaces all say the MTU of the interface is 1500 bytes. According to this article, the interface MTU should read 9216 is the jumbo frames are enabled globally. Is this correct. Is there a way to verify if Jumbo frame support is turned on? [code]

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Cisco Switching/Routing :: 5548 - High Current Alarm For Nexus Interface Transceiver

Dec 9, 2012

I have a Cisco 5548 Nexus switch with 10Gbase-SR interface transceiver. This interface is connected to Server chasis.
 
The show interface transceiver details output shows High ++ alarm for Current. Additionally, i am getting output errors on this interface.

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Cisco Switching/Routing :: Nexus 7010 IP Telnet Source-interface Command Not Working

Aug 20, 2012

I have configured the ip telnet source-interface Loopback 0 command on a Nexus7010, but when I telnet to another device and do a show users, the ip address is of the closest interface to the device I telnet to, not the ip address of the Loopback. All interfaces are in vrf default. I am running 5.1(6) NXOS.

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Cisco Switching/Routing :: Nexus 7010 OSPF Passive-interface Default Not Showing

Nov 6, 2011

I'm currently working on a plan to migrate our 6500's over to our new 7010's.  At the time of the migration I want to tighten up our OSPF design and configure OSPF for "passive-interface default" then allow only those interfaces that should have OSPF neighbors to send the hellos.  The issue is that the command is not showing up under the OSPF process.  What's even more interesting is that the Nexus 5.x Unicast Routing Configuration Guide shows that the "passive-interface default" command should be an option to enter.
 
I'm currently running version 5.1(4) (though looking to upgrade to 5.2 during my migration testing).  I would rather configure the passive-interface via the routing process versus having to enter it on every interface.

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Cisco Switching/Routing :: Interface Resets Causes Port Channel To Flap Nexus 5010?

Feb 20, 2012

Here is an example of what each switch logs when a server drops offline.  Sample logs taken between 5:32am and 5:35am on Feb 20.   This particular one was having problems all weekend.  Switch #1 encountered over 2000 interface resets.  The corresponding VPC port on Switch #2 only had 13 resets.
 
NEXUS SWITCH #1
 2012 Feb 20 05:32:09 q91-sw01-5010 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel10: first operational port changed
from Ethernet1/10 to none
2012 Feb 20 05:32:09 q91-sw01-5010 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel10: Ethernet1/10 is down
2012 Feb 20 05:32:09 q91-sw01-5010 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel10: port-channel10 is down
2012 Feb 20 05:32:09 q91-sw01-5010 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel10 is down (
No operational members)

[code].....

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Cisco Switching/Routing :: Nexus 7000 / Interface Isn't Coming After Once Telco Gave Loop

Oct 26, 2012

we are bringing up new ckt and nexus 7000's interface isn't coming up once telco gave a loop. and wee following msg when I do "sh int eth1/1".
 
(UDLD Tx Rx loop, port: error)
 
what does "(UDLD Tx Rx loop, port: error)" it mean?before loop. interface was showing as "Link not Connected".

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Cisco Switching/Routing :: 2900 - Nexus 7010 Layer 2 VLan 11 Active But Interface Shutdown

Sep 13, 2012

I understand the vlans on the catalyst side of the house on 2900 to 6500 Catalyst switches.
 
This 7010  running nx-os 5.1(3) I did not setup, but have to manage it.  Hasn't really been a proble till now.
 
My nexus 7010 has a Layer 2 only vlan 11. It is "Active" but the interface is "shutdown".  Yet, it is passing traffic across the directly connected  ports on the nexus 7010 and to other switches in my network.  Vlan 11 is being set out via VTP to all my switches and things are running fine.
 
I need to create another L2 only Vlan.  I can't seem to find any docs  that indicate that a Layer2 vlan Interface on nx-os should be in  "shutdown" mode as part of the setup. I do see in the docs where it has  to be set "Active" as part of the process.
 
Is this the correct way to seutp a L2 only vlan on nex-os? Leave the interface in "shutdown" but make it "Active"?
 
Mystery Vlan 4 and 6
The mystery deepens.  I have other L2 vlans ,Vlan4&6 that are NOT defined as "Interface Vlan4" in the nexus config, yet it is applied to GigE ports on the nexus and these Vlans 4/6is also being sent out VTP to all switches.  Even weirder is that these vlans have names associated with the numbers.  These are valid Vlans that were configured on the old 6509 before the Nexus was installed.
 
I have checked all switches, NONE are running in Server mode for VTP, all are in CLIENT. The nexus 7010 is the only device running in VTP Server mode. 

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Cisco Switching/Routing :: Packet Discard On Nexus 5020 Link To Nexus 5K

Feb 23, 2011

We are facing issue of continous packet discards On nexus4001L link (int po2) to Nexus5020 switch. Nexus4001L is installed in IBM blade center server and we have FCOE enabled in this setup. [code]

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Cisco Switching/Routing :: Nexus 7000 With Fabric Extenders Nexus 2000?

Mar 15, 2013

I have been tasked to replace the existing Cat 6500 and 3750 switches by Nexus 7000 and Nexus 2000.I was told initially my boss plans to get 2 x Nexus 7000 and then eventually blow up to 4 x Nexus 7000s.For Nexus, is there a list of tasks / points that i need to consider for building the initial design?
 
Can i just link the Nexus 7000 like the following?
 
N7k-A    =========   N7k-B
|                                   |           
lots of N2ks               lots of N2ks

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Cisco Switching/Routing :: Nexus FEX Transceivers SNMP MIB Nexus 5000

Dec 22, 2011

Struggle to find the SNMP MIBS of the Nexus 5000 FEX tranceivers.

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Cisco Switching/Routing :: Datacenter Design With 2 Nexus 5K And 4 Nexus 2K?

Nov 13, 2012

we are planning a Nexus datacenter project with this layout:Our experiences with Nexus switches are not so large until now and the manuals are very extensive.Both N5K´s should be connected directly with all 4 N2K switches. I did not find a layout like this in the manuals. Only a design,where only 2 N2K are connected to one N5K, with this fex config:Now I´m not sure if it is right to make a config like this with the same slots and fex´s or with different slots and fex´s.

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Cisco :: Out Of Band Management With New Routers (1941 And 2921) IOS 15.0?

May 16, 2011

Our out of band connections with the new routers (1941 & 2921) with the new IOS 15.0 are not working.
 
Here is our configs:
 
Router: 
line aux 0 exec-timeout 3 0 modem InOut transport input all stopbits 1
 Modem(D-Link):
 at&fs0=1s2=127s37=9e1q1&c1&d2&s1&k0&r0&w
  
Here is an output of the debug command:
 
*May 17 05:02:14.206 UTC: TTY1: CTS went down on IDLE line*May 17 05:02:17.206 UTC: TTY1: CTS came up on IDLE line*May 17 05:02:22.206 UTC: TTY1: CTS went down on IDLE line*May 17 05:02:25.206 UTC: TTY1: DSR came up*May 17 05:02:25.206 UTC: tty1: Modem: IDLE->(unknown)*May 17 05:02:25.206 UTC: TTY1: EXEC creation*May 17 05:02:25.206 UTC: TTY1: create timer type 1, 30 seconds*May 17 05:02:25.674 UTC: TTY1: create timer type 10, 30 seconds*May 17 05:02:26.154 UTC: TTY1: pause timer type 10 (OK)*May 17 05:02:26.154 UTC: TTY1: resume timer type 10 (OK)*May 17 05:02:26.174 UTC: TTY1: pause timer type 10 (OK)*May 17 05:02:26.206 UTC: TTY1: DSR was dropped*May 17 05:02:26.206 UTC: TTY1: Set

[code]....
 
It goes into the handshake but then disconnects immediately.

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Cisco Switching/Routing :: ASA 5505 Cannot Ping From Inside Interface To Outside Interface

May 1, 2012

I have a Cisco ASA 5505 and I have my internal and external interfaces configured but I currently cannot ping from the inside to an IP Address on the outside.  I had this setup and working and I have another set of equirement that I am replacing that is working with my service provider so I know it is a configuration issue.  When I ping 4.2.2.2 for example I get:
 
Destination host unreachable
 
Do I need to add a static route from my inside interface to my outside interfaces?   

: Saved
:
ASA Version 8.2(5)
!
hostname pxasa

[Code].....

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Cisco :: LMS4.2.2 - Cannot Do Archive Management On Nexus 5K

Nov 22, 2012

In our organisation we have multiple Nexus 5000 switches, which Cisco LMS 4.2.2 cannot get the running-config and startup-config from with the Archive Management process. When it does try to get them, I get a error as follows:
 
*** Device Details for SF-DERA-01 ***
Protocol   ==> Unknown / Not Applicable
Selected Protocols with order ==>   TFTP,SSH,SCP

[Code].....

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Cisco :: LAN Management Solution Required To Support Nexus 5548P

Oct 7, 2012

what Cisco LAN Management Solution is required to support Cisco Nexus 5548P switches and Cisco Nexus 5596UP switches?These new Cisco switches are being implementing on customer network and he ask us that he requires these equipments be supported on a LMS solution (customer currently is using LMS 3.2.1)

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Cisco Switching/Routing :: 4900M Management Configuration Via Vrf

Mar 10, 2013

I am just going to deploy some new 4900Ms for a customer. Want to know if configuring management for 4900 (everything like NTP, AAA, SNMP , DNS ) is doable through management interface in management VRF and there are no caveats to be aware of.

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Cisco Switching/Routing :: Management Port On WS4507R

Apr 3, 2012

How does the IP address is assigned on management port of WS4507 R, syntax.

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