Cisco Switching/Routing :: Static Route Deletion Impossible On Nexus 7010

Jan 3, 2012

I am working on Nexus 7010 with NX-OS 5.1.5. I have to delete the static route 10.10.0.0/16 via 10.16.0.21. [code] I try to remove the route with the command "no ip route 10.10.0.0/16 10.16.0.21" and I have the message below % Route not deleted, it does not exist..I don't understand why I have this message because the static route exist.

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Cisco Switching/Routing :: Nexus 7010 - Stop Default Static Redistribution Into OSPF?

Sep 24, 2012

Ok I didn't setup my OSPF on my 7010. Today I found out that any static route I put into my 7010 gets sent into to my MPLS network. My 6509's you have to "Tag" the static rout for this to happen. Was under the impression the same was necessary for the 7010 or at least it had to "match" an access list. How can I fix the below so that by default all static routes are not resdistributed into OSPF?
[CODE]...

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Cisco WAN :: OSPF Route Between Nexus 7010 And ASR1002?

Sep 16, 2012

I cannot receive any OSPF route from Nexus to ASR1002 even they are both OSPF neighbour. I have attached the config for both, Both Nexus and ASR part of Area0.
  
Config 
ASR1002#sh ip ospf neighbor
Neighbor ID     Pri   State           Dead Time   Address         Interface10.165.117.12     1   FULL/BDR        00:00:35    10.231.175.226  GigabitEthernet0/0/0

[Code].....

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Cisco WAN :: IP SLA And Object Tracking For Default Route On Nexus 7010

Mar 18, 2013

We have a Nexus 7010 running version 6.1(2). 
 
I'd like to use IP SLAs and object tracking to define static routes for specific source/destination traffic across some WAN links we have.  I've done this in IOS and it's worked fantastically, but I've not found where/how to do this on the Nexus 7010 platform (or any Nexus platform) as of yet.  I could have sworn that this was going to be introduced in the 6.x code?  Below is an example of how we do this in the IOS world:
 
track 11 ip sla 1 reachability
delay down 15 up 15
ip sla 1

[Code]....
 
Esentially this gives us the option of using a "failover" default route.  I've attached a basic diagram to explain what we are trying to do with IP SLAs and object checking.  The tracking should be configured against an SLA that uses icmp and the static routes should be configured against the tracking.

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Cisco Switching/Routing :: 7010 - How To Add Two Nexus 5K In DC

Feb 18, 2013

This is regarding Nexus core switch 7010. We are already running two nexus 7K with ten Nexus 5k. Currently we are going to add two new Nexus 5k in our DC. In the 7K we already running two VDC's.

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Cisco WAN :: Nexus 7010 - Advertise Default Route Based On HSRP State

Sep 24, 2012

I've got two Nexus 7010's running HSRP north bound to a pair of ASA's, and BGP south bound to four 6509's. Is it possible to advertise default route to BGP neighbor (or prefer it via MED), only if the node is HSRP-active?

Essentially the goal is to create symmetry for inbound/outbound traffic. Only way I can think of so far is via an EEM script, so that when it sees  HSRP go active via syslog, it would kick off an action to remove ASN prepend,  or reduce MED, and the opposite if HSRP goes standby.

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Cisco Switching/Routing :: Connecting Nexus 7010 VDC With VPC

Jan 29, 2013

In our LAN network design, we have two Nexus 7010 switches on the core connected via vPC. Then LAN access switches are directly connected to the Core Nexus switches  via  regular port channels on the 3750's  and vPC on Nexus. The core Nexus switches will be linked to an existing LAN network and the applications will be progressively migrated from the old to the new network.In this scenario, three VDCs are planned to be configured on the Nexus -  One for the Interconnect (and WAN at a later stage), one for the LAN/local services and one for the building facilities/local services.

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Cisco Switching/Routing :: Upgrade Nexus 7010 From 4.2(4) To 6.1(1)

Jun 11, 2013

I'm about to perform an upgrade on two Nexus 7010 switches per above. Can I directly upgrade or, do I need to go from version 4 to 5.x and then to 6??
 
SA7001# dir bootflash:
        518     Jan 10 00:37:51 2008  TBM14107479_136878179.lic
      15830     Jun 06 11:50:11 2013  dcnm-10.25.32.10-ckpnt.cfg
      16384     Jan 09 23:25:25 2008  lost+found(code)

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Cisco Switching/Routing :: Logging In Nexus 7010 6.x?

Sep 19, 2012

We recently replaced our core switch from a non-cisco vendor with a Nexus 7010.  With our old core switch, I had the ability to log changes to the ARP table.  So if there was a dhcp conflict or a vMotion event, it would show up in the "show log" output.  I've not found a way to do that with the Nexus switch - or at least no way to view the log.  I have the command: logging level arp 6

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Cisco Switching/Routing :: Nexus 7010 Dual Sup ISSU

Aug 7, 2012

I have to upgrade a Nexus 7010 with dual Sup engines from 4.2(4) to 5.2 and am hoping it could be an ISSU. We are fine with an outage window.To upgrade from 4.2(4) to 5.2(5) I'll have to do a multi hop upgrade from 4.2(4) - 4.2(6) - 5.2(5) and each hop would take 40-60 minutes.do I spend 40-60 minutes for each hop, or just do a disruptive upgrade straight from 4.2(4) to 5.2(5)? Like I said, we are fine with an outage window.

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Cisco Switching/Routing :: Does Nexus 7010 Supports NAT64

May 1, 2012

Does Cisco Nexus 7010 supports NAT64; the image that I am using is :-
 
Software
BIOS:     version 3.22.0
kickstart: version 5.2(4)
system:   version 5.2(4)
BIOS compile time:       02/20/10
kickstart image file is: bootflash:///n7000-s1-kickstart.5.2.4.bin
kickstart compile time: 12/25/2020 12:00:00 [03/08/2012 03:58:13]
system image file is:   bootflash:///n7000-s1-dk9.5.2.4.bin

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Cisco Switching/Routing :: Nexus 7010 Module Failure?

Apr 11, 2012

I'm currently getting a Nexus hardware failure at present.
 
switch %MODULE-2-MOD_DIAG_FAIL: Module 8 reported failure due to DEVICE POST/DIAG FAILURE in device 48

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Cisco Switching/Routing :: Surges In Nexus 7010 Latency

Dec 2, 2011

I just deployed a nexus 7010 switch at a server farm. after deployment, it was notices that there are surges in latency across the network. The default gateway was then moved to the nexus, with this pinging from an host on the same subnet there is intermitent burst is latency

NEXUS>>>>>Server
Ping of about 80ms and sometimes even times out.
To me, this is strange.
NX-OS Version is 5-02a

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Cisco Switching/Routing :: Creating VPC On Single Nexus 7010?

Jan 6, 2013

I'm looking to see if it is possible to run a vPC between to vDC's on a single 7010?  We have a Production setup that runs dual 7010's with vPC's between the chassis but in our lab we only have a single 7010 with a 32 port 10gig module.  I was thinking that maybe we could create 4 vDC's on the 7010 and run a vPC between the vDC's.

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Cisco Switching/Routing :: Nexus 7010 NX-OS 5.2 Netflow FPS Information

May 22, 2012

How to get a summary of netflow statistics on NX-OS? On IOS you could do sh ip cache flow which would show what I need? Can't find a similar command on the Nexus Platform.

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Cisco Switching/Routing :: Nexus 7010 Install New Supervisor

Sep 20, 2012

We will install a new Supervisor Engine in our Nexus 7010.One Supervisor Engine is already installed an 1Year old.So the Problem is that both Supervisor Engines may have different NX-OS version.Could this lead to a problem?Does the installed Supervisor Engine "udate" the newer Supervisor engine?

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Cisco Switching/Routing :: Vrf With Hsrp In Nexus 7010 Version 6.0

Nov 24, 2012

i have a big problem because i configure a vlans with vrf and HSRP but, when i do "show hsrp brief", dont show this interfaces and, i can ping virtual IP. it seems hsrp dont work.

SWSERVSCAMILO_N7010_A#
 interface Vlan405
  description smsc-fwatlas1
  no shutdown
[Code] ....

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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 :: Nexus 7010 And Connection With EIGRP

Mar 20, 2012

We have, for nearly 4 years, used EIGRP on our 6513 to  make use of two unequal links to our branch offices.  This worked because we could use the variance command and cause EIGRP to insert two routes into the table, one from each carrier.  Thus it was we could balance the load to each one with a ratio similar to the ratio of the bandwidth of Link A to Link B.
 
We just purchased 2 Nexus 7010's to replace our single 6513 core.After much consternation we have found from our Ciscio SE that the Nexus 6.0.2 software rendition of EIGRP does not support variance. 
 
Why would Cisco take their own propriatary protocol and then gut it by removing features?  I'm quite ready to send these Nexus boxes back in favor of a newer 6500 series.  MEC doesn't work like it is supposed to and the show-tech runs for over 24 hours without ever finishing (and this we can repeat on both boxes, multiple times).
 
We've opened a tac case but I just wondered for any work around for the 'variance' command?

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Cisco Switching/Routing :: Nexus 7010 Radius Authentication

Jan 19, 2013

I am facing issue with nexus 7010 login authentication by radius server. I have two nexus 7010, one of them is working perfectly. Other taking long time to authenticate. If i use local database to login it works perfectly. It works fine also  if i login from console using radius for authentication.

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Cisco Switching/Routing :: Nexus 7010 / VSS - Does It Support Virtual Switching?

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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Cisco Switching/Routing :: Nexus 7010 - Inter-VLAN Routing On Multilayer VPC Environment

Feb 16, 2011

you find attached my network architecture with 2 Nexus 7010 on core layer and 2 Nexus 5020 on distribution layer, each one with 1 N2148T fabric extender switch. PC-A1 and PC-A2 are connected to one N2148T, PC-B1 is connected to the other N2148T. Nexus-7000-1 is HSRP Active for all VLANs, Nexus-7000-2 is HSRP standby. PC-A1 and PC-A2 are connected to VLAN A, PC-B1 is connected to VLAN B. PC-A1 and PC-A2 have the same default gateway correspondent to IP HSRP on VLAN A. It happens that PC-A1 is able to ping PC-B1 while PC-A2 is unable to ping PC-B1. If I issue a traceroute from PC-A2 I see Nexus-7000-2’s physical IP address as the first hop even if Nexus-7000-2 is HSRP standby. After the first hop the traceroute is lost. If I shutdown Port-channel 20 on Nexus-5000-2, PC-A2 starts to ping PC-B1.I can’t understand what’s wrong in this architecture.

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Cisco Switching/Routing :: Nexus 7010 - How To Block SSH Access On SVI Interfaces

Jun 4, 2012

I use Nexus 7010 as our layer 3 router.I have ssh feature turned on so I can manage it from the management interface. I just found out that users can use putty to ssh to the local SVI interface of the NEXUS. Although they still need username and password to login but we dont want them even able to bring up the welcome screen.Example, user's IP is : 172.16.25.100 , they can ssh to 172.16.25.1 which is the NX SVI interface.

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Cisco Switching/Routing :: Jumbo Frames Dropped On Nexus 7010?

Jul 5, 2012

I believe i've enable jumbo frames on our Nexus 7010, one in each data-centre.

system jumbomtu 9216. Also on the interfaces mtu 9216. And can see MTU 9216 bytes, BW 20000000 Kbit, DLY 10 usec on the port-channel between them. Though when i ping between vlans at each site with large packets i get 30% drops and if i set the DF bit in IP header to yes -  100% loss.
 
8798 bytes from 10.200.12.2: icmp_seq=19 ttl=254 time=8.024 ms --- 10.200.12.2 ping statistics ---20 packets transmitted, 14 packets received, 30.00% packet loss

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Cisco Switching/Routing :: Nexus 7010 / Multiple VPCs Benefits?

Mar 30, 2012

I have a senario where i'm going to have 2 Nexus 7010 connected as a core, and i'm going to have 4 5510's connected in a star formation. Each nexus 5510 will connect to the nexus core Via two 10Gb links. Each nexus 5510 will have 2 links attached to The core switches in vPc's.
 
Nexus 7010-1 = Core 1
Nexus 7010-2 = Core 2 
Nexus 5510-1 = vPC = 100 2 Ports in vPc 100 -- > 7010-1, 7010-2
Nexus 5510-2 = vPC = 200 2 Ports in vPC 200 -- > 7010-1, 7010-2
Nexus 5510-3 = vPC = 100 2 Ports in vPc 300 -- > 7010-1, 7010-2
Nexus 5510-4 = vPC = 200 2 Ports in vPC 400 -- > 7010-1, 7010-2
 
The way I intend to configure the vPC's is this the best way. If i get a vPC dual active scenario what would happen. All ports will be forwarding all VLAN traffic this is how I intend to have it work.

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Cisco Switching/Routing :: Nexus 7010 - IP IGMP Snooping Querier

Sep 23, 2012

I've got a pair of Nexus 7010's running vPC. I am having a Multicast issue with a cluster of Linux servers that need to talk Multicast for cluster/high-availability operation. All the servers need to talk to a single multicast address and I am having trouble getting them to communicate. I believe I need to enable IP IGMP Snooping Querier on the N7K's and it needs to be enabled on the VLAN where the servers reside. How to enable IP IGMP Snooping Querier on a VLAN ?

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Cisco Switching/Routing :: Nexus 7010 - Unable To Ping Within VLan

Jul 10, 2012

Yesterday I configured the 7010 Nexus switch. I created a VDC and allocated few ports and configured VLAN for testing. After enabling feature interface-​vlan i was allowed to configured L3 interface for the vlan. I assigned ip address and connected few server to check the reachability but it says Destination Host Unreachable.
 
NX OS Ver : n7000-s1-dk9.5.2.4.bin
 
Configuration of the VDC below.
 
feature telnet
feature udld
feature interface-vlan
feature lacp
[Code]....

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Cisco Switching/Routing :: Nexus 7010 / 5510 - Run OSPF As Layer 3 Routing Protocol Between VPC Peer Links

Mar 25, 2012

I have an environment where i have two nexus 7010 switches, along with 2 nexus 5510's. I need to run OSPF as a layer 3 routing protocol between the vpc peer links.  I have 1 link being used as a keep alive link, and 3 other links being used as a VpC link.
 
1) Is it best to configure a separate Vpc VLAN i.e 1010

2) Is it best to configure a vrf context keep-alive

3) just have the management address as the peer ip's.

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Cisco Switching/Routing :: Does The F2 Linecard (N7k-F248XP-25) On Nexus 7010 Support Layer 3

Jan 25, 2012

I am sure that F1 linecards on Nexus weren’t able to support L3 functionality, so my query is does the F2 linecard (N7k-F248XP-25) on Nexus 7010 support Layer 3?

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Cisco Switching/Routing :: Nexus 7010 New Users Were Not Getting Ip Address From Dhcp Server

Jun 8, 2013

We  have 2 nexus 7010 switches configured with HSRP in the network. For all  the vlans core1 is Master and Core2 is standby. In the current setup we  have external dhcp server and dhcp relay is configured for all the  vlans on Master and standby switch. The setup is running the IOS 5.2
 
Activity Done: During  the Maintainacne activity, we isolated core1 switch in the network by  disabling the vpc/keepalive and all the uplinks from access switch. The  core2 switch was master for all the vlans.
 
Issue observed: It  has been observed that new users were not getting ip address from the  dhcp server. The ethereal capture showed that dhcp server was not  getting the dhcp requests from the core2 switch. We disabled the dhcp  feature in core2 and enabled again with dhcp relay again configured on  vlan interfaces .even after doing this no change was observed in  behaviour. Finally we got core1 back in network by enabling all the  links.
 
Observation: The  moment VPC link came up between the core switches, users started  getting ip's from dhcp. Then we started enabling all the uplinks on  core1.Core1 again become master for all the vlans and users continued  getting ip’s. Network running fine.
 
Further Testing

1. For  one of the vlan, core 2 switch has been made primary and for new users  checked the dhcp functionality and it was working fine. The aim was to  identify if anything wrong on core 2 related to dhcp relay

2.Again  we changed the priority for this vlan and made core1 master for the  same. This time we disabled this vlan on core1 and tried new user with  core 2 became master and dhcp functionality worked fine for new user.  Actually in this case we have simulated the same behaviour when we  observed the issue with only difference of VPC was not available during  the issue time as core 1 was isolated form network 
Inputs needed.

Is  there any known behaviour for dhcp functionality when VPC is  unavailable? If we see the test scenario2 (wherein core1 was master for  the vlan and we disable this vlan on core 1 and core 2 was able to relay  dhcp requests for new users in this vlan.) it was actually same as  scenario we observed during issue time..

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Cisco Switching/Routing :: Nexus 7010 - Command For Restoring The Running Configuration

Apr 29, 2012

What is the exact command in restoring the running-config on a Nexus 7010. Is it the same command / procedure as the Cisco IOS?

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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 :: Getting Physical Port Failure Error On Nexus 7010 Switch

Jul 9, 2012

I've Nexus 7010 switch installed in my DC. I've conncected Cisco router to one of the Ports. On the same port I'm getting following error message and hence, unable to form EIGRP neighborship.
 
DR-CORE-SW-S01-NEXUS7K %MODULE-2-MOD_SOMEPORTS_FAILED:
Module 1 (serial: JAF*******NGK) reported failure on ports 1/2-1/2 (Ethernet) due
to R2D2 : Speed patch failed - no frames transmitted in device 143 (error 0xc8f0
1273)

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