Cisco Switching/Routing :: 6509 - Nexus 7009 Rack Concerns
Mar 5, 2013
I wanted to know if any has the Nexus 7009 chassis installed into a 600 wide rack with the sides fitted and if they are experiencing heat issues?
My client will be replacing their aging 6509 chassis with 7009 devices, but the physicals dont tally with the install guidelines for the 7009 series chassis. The current install of the 6509s does not tally with the recommended install guidelines for those either, but they have not expereienced any heat issues...
The 7009 will be fitted with 2xSUP2E, 3x48portSFP-F2E cards and 2x10GSFP-M2 cards with 2x6K PSUs. I am genuinely concerned they may cook these devices, but space restrictions look like vetoing the upgrade to 800 wide racks. Likewise moving to 7010 chassis may prove tricky due to existing other installs within the racks limiting vertical space.
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Feb 3, 2013
I need to upgrade my core switches at one of our locations (two 7009s with dual sups) from 6.0.1 to 6.1.2. After looking through the release notes it appears that this will be a disruptive upgrade?how long should I expect for the disruption? Are we talking a 7009 boot cycle (10 - 15 minutes) or something longer?How many disruptions can I expect? I suspect 1 per chassis during the failover to the standby but I'd like to validate.Is there any compelling reason to upgrade the EPDL? From what I can see, again from the release notes, this is only necessary with F2 cards if I were to upgrade to Sup2s . I'm in a healthcare environment and this upgrade will be affecting one of our major campuses so the more info I can get to the managers the more accepting they will be for the disruptions.
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May 27, 2013
I have in logs following error message:
%DEVICE_TEST-2-PWR_MGMT_BUS_FAIL: Module 1
Has failed test SpineControlBus 20 times on device Power Mgmt Bus on slot 10 due to error Spine control test failed error number 0x00000002.
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Mar 3, 2013
I need to figure out the max power consumption of 7009. The issue is, at this point i am not sure what modules will be used, so just to give an estimate, how we calculate the max power consumption of nexus 7009 ?
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Feb 3, 2013
We are migrating from Catalyst 6509 IOS platforms to Nexus 7009. There's the normal differences in commands which is well doucumented. We do have some quite large files containing ACLs varying from 10's of lines to several 1000's of lines. Our normal upload would be done using tftp and then issuing the command 'conf net' on the the 6509. This is no longer the way to do this on NX-OS. I've tried copy ftp: running-config which works fine for small files but for big ones it takes a long time, in some cases I've see it takes 20-30 minutes. The initilal tftp uplaod to the 7009 seems OK but the copy into the running-config is the bit that takes time and initially I thought I'd killed the 7009!! It did finally come back to the prompt. Are the 7009's simply not designed for large ACLs? I did try the configure session (Session Manager) but I couldn't see a way of uploading a file. I tried creating a new session and then exiting it, copying in a file of the same format and then commiting it but it didn't seem to acknowledge the file (checksum?).
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Apr 14, 2013
I wanted to know that in nexus 7009, can i use mix of F2/M1/M2 series line cards ? will they work with each other ? Lets say i have F2 line card and M2 line card, will servers attached to them will communicate with each other ?
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Jan 19, 2013
We have Nexus 7009 switch and want to configure the span session
We are using F2 and M2 card both are in seperate differeent VDC.And out server is connected to M2 card on eth 4/6 and want to monitor the traffic from vlan 161Which is made on F2 card.
Connectivity is like this.
Nexus 1 Nexus2
Slot 3: F2 card Slot 3 : F2 card
Slot 3: M2 card Slot 3 : M2 card
[Code]......
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Apr 3, 2012
We are looking to deploy two Nexus 7009 cores at our two datacenters. They are approximately 2 miles apart. We are hoping to have 10G Dark Fiber between the buildings and therefore dedicate a pair for FCOE between the cores using 10G Long Range SFP's. I read that the Nexus 5000 series had a limit of ~3 km for FCOE. Does the same hold true for the 7000 series? I thought I read somehwere that the buffers were larger on the 7000 series and therefore would be able to do ~30 km.
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Jun 18, 2012
We've gotten two Nexus 7009's in and I'm starting to configure them when I found I couldn't add VDCs. I found there was no license installed but the only licenses I found that came with them are "Cisco DCNM for LAN Enterprise Lic for one Nexus 7000 Chassis". So my question is this - do I need to configure a DCNM server to get the license pushed to these two 7009s or should there be another PAK for each chassis that I can register and get my enterprise services?
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Sep 10, 2012
we've been using IOS for a long time, but are relatively new to NX-OS. We've got a central syslog server that all our devices log to. No matter what we do, we can't get our Nexus switches to log there. Here's my current attempt:
Nexus 7009, NX-OS 6.0(1)
# sh logging server
Logging server: enabled
{redacted}
server severity: debugging
server facility: local7
server VRF: default
[code].....
The default VRF is working. I see log entries in the logfile, but nothing arrives at the syslog server. It's not a config issue on the server, because tcpdump shows that no packets arrive from the IP for loopback 0.
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Jan 28, 2013
Is there any challenge to upgrade core switch 6500 series from Nexus 7009 which runs NxOS, because i have 3750X series switches connected at distribution and access layer in my network topology??
Is there any challenge if we place NxOS in core and IOS in distribution and Access layer??? how we are able to match sh run config in existing 6500 switch to Nexus 7009 NXOS?
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Nov 14, 2011
I hve the above setup and I need to setup multicast between the 2 servers. The nexu7k is a layer 2 switch and the 6500 is a lyer3.Both servers would be sending/receving traffic.
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Jun 10, 2013
I have two Nexus 5596UP that will be connected together via VPC-Peerlink. From there I want to connect both 5596UP's to a 6509-VSS via VPC.The Nexus 5596UP's will be essentially layer 2 switches, all routing will be done the 6509-VSS's.
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Sep 12, 2011
we have a new IBM Bladechassie with two Cisco nexus 4001i switches.I have configured one external port on each nexus and connected them to a cisco 6509 with 1G cisco SFP-modules and MM fibre.Both the nexus and 6509 ports are configured as trunk ports, and set speed to 1000.I see light in the SFP-modules on both devices, and through the fibre. When I connect the devices, the link doesn't come up. No light on the ports, the nexus says "link not connected", and the 6509 says "notconnect". I have tried reconfiguring the ports in many ways, even as accessports, nothing seems to work. If I move the SFP and fibre from the 6509 over to a trunk port on a cisco c2960-24TC-L, the link comes up and everything is working fine. why this work on a 2960 and not my 6509 coreswitch? One of the configs I've tried on the 6509:interface GigabitEthernet2/20description *IBM Bladechassie 2 NW1*switchportswitchport trunk encapsulation dot1qswitchport trunk native vlan 34switchport trunk allowed vlan 34switchport mode trunkend
Nexus config (works with 2960):interface Ethernet1/15 switchport mode trunk speed 1000
6509 ios: 12.2(33)SXI3
6509 SFP module: CEF720 24 port 1000mb SFP / WS-X6724-SFP
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Nov 12, 2012
We have two 5548 switches connected to a pair of 6509 running in VSS mode. I am trying to understand the benefit of having bridge assurance on the uplink ports.
If we have the command spanning-tree port type network enabled we cannot do a non disruptive upgrade. If there is bridge assurance on the uplink it warns you of this. Yet if I do not run bridge assurance on the uplinks I can do a upgrade without any disruption.
Why in god would I enable bridge assurance on this VPC link if I cannot do a non disruptive upgrade?
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Oct 24, 2011
I am in the early planning stages for a 6509 to Nexus 7K migration. Based on my experience with the 7K's at a previous company where we ran into a lot of issues, I am trying to be very careful.
I am more at home with the 6500 chassis and know what I can do with them. I remember running into a limitation on the Nexus that involved their not supporting span sessions like the 6500's do. Is that still the case ?
If that isnt an option in the short term, I will need to look at a substantial investment in ethernet tap's to replace the lost span functionality because the security group's heavy use of span sessions.
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Apr 27, 2013
I have the following connectivity :Nexus(7004) - M1 8Port card with x2-10GB-SR <----------------------> 6509 -- 6704 card -- xenpak-10GB-SR ,The fiber link is not coming up.
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Jan 24, 2013
I am trying to understand what load balancing method is used on a port channel on a Nexus switch . I have a server connected by a VPC to two Nexus switches. The nexus switches are only acting as layer 2 switches. I have a 6509 connected via a upstream link that does all of the routing for my VLANS. If have a server connected to the Nexus switches and it talks to a server on my 6509 what load balancing happens on the Nexus going across VPC 27 which is a layer 2 trunk going up to my 6509. Is it done on layer 2 or layer 3 flows?
My Nexus shows the default load balancing configurations
Port Channel Load-Balancing Configuration:System: source-dest-ip
Port Channel Load-Balancing Addresses Used Per-Protocol:Non-IP: source-dest-macIP: source-dest-ip source-dest-mac
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Oct 24, 2011
I am trying to work up a config based on equipment that was ordered before I joined my current employer.
I will be deploying N2Ks at the top of each rack. Each N2K will be dual homed to two different N5K's. Being new to the Nexus, I understand that the N2K's have no brains and are dependent on the N5K's they connected to. Wasnt sure how to tell each 5K that the 2K that was dual connected to it needed to be able to move between N5K's based on failure/availability. I havent been able to find a sample config of what this will look like anywhere on the Nexus section of the Cisco site.
The next step after this will be to connect N5K_1 to blade on a 6509 and N5K_2 to a different blade on the same 6509. I will be installing two of the 10Gig blades in the 6509. Havent been able to find any sample configs on what this would look like either. We are upgrading the sup engines on the 6509 to the new 2T version.
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May 29, 2012
Our customer is willing to have a Cisco Nexus 5020 to provide server connectivity and this Nexus would go connected to their core switch 6509. They are concern about Spanning tree compatibility between the Nexus and the 6509. Are they fully compatible for Spanning tree?
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Feb 21, 2013
I have a nexus 7009 that used to work connecting via SSH. However now I cannot connect to it via ssh. It appears the SSH is connects but doing a show users from the console shows nothing connected other than the console connection.
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May 29, 2012
We have Nexus7009 at client network but due to limitation of Nexus switches that they can not be directly integrate Nexus with RSA so client has purchased cisco ACS for the AAA. We are able to do the authentication and authorization via ACS.However clients wants to further integrate the ACS with RSA so that authentication should happen via RSA and authorization should happen ACS. Is that possible ? if yes, how can i configure the ACS ?
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Mar 13, 2012
I have setup my radius server access on the Nexus but am unable to authenticate through putty. If I do a radius-server test on the Nexus it says I authenticate. Here is the log I am getting.
2012 Mar 14 16:03:21 switch-a %AUTHPRIV-4-SYSTEM_MSG: pam_unix(aaa:auth): check
pass; user unknown - aaad
[Code].....
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Nov 6, 2012
We have a vPC cluster of two Nexus 7009 that needs to be connected with a VSS cluster of two Catalyst 6509s. The VSS has been working fine for a while and the vPC cluster is new equipment.
Attached there is a detailed diagram of the connections; the VSS cluster connects the interfaces Ten1/2/8 and Ten 2/2/8 using the PortChannel 28 going to the the vPC cluster to the interfaces Eth 4/18 of each switch.
Both the vPC and the VSS are well configured; last night we tried to brought up the connection between the two clusters but only the first interface comes up within the etherchannel; the secondary one did not come up and shows (not receiving LACP packets).
We know Layer 1 is fine because if we remove the interface from the EtherChannel it does come up; but causes some STP loop and bring the network down; thus the solution is to form a EtherChannel.
At the VSS Clúster we see LACP packets being sent with sh lacp counters but we DO NOT see LACP packets being received in the interface of the secondary Nexus.
Right now, this is not possible to troubleshoot since it is a production enviroment; so I'm looking for problems with the configuration or recommendations to follow in order to apply them tomorrow night during a new maintenance window.
These are the configurations:
#######vPC cluster of Nexus 7009######
--N7K-1--
interface port-channel418
description Uplink 20 GE hacia VSS
switchport
switchport mode trunk(code)
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Mar 19, 2012
i want to know, is c3650G or c3650X switches are already containing rack mounting pack or am i need to buy it seperatly?
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Jan 10, 2013
I have a question if your Cisco 800 series wireless in a rack mount installation in racks to place the signal strength materials very well ?
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Mar 25, 2013
I am considering running stacked 3750 L3 switches as the edge of the network, which will connect to the ISP. The ISP would hand off two lines with one to each switch and two lines to each client zone. Does running HSRP, running port channels, or running routing protocols seem like the best option for redundancy?
Lastly, will the 3750 provide all the QoS I should need for restricting each client zone's bandwidth both up and down? Could I get away with a lower model and still get these features?
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Jan 11, 2012
Any recommendations for top of rack switch for within our data centre.Dual power is a requirement, but bandwidth and through put will not be huge as such I have been looking atthe WS-C3560X-48T-L and the Nexus 3048.
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Nov 21, 2011
I currently have a couple of 6509 chassis (router/switches) with the following hardware blades:
x3 48 ports
x1 NAM
x2 Sup720
Running 12.2(18)SXF3
I am keeping the four Sup720 modules and have purchased new versions of the others blades including two new 6509-E chassis?Can I take my stand-by Sup720 out of the production machine and insert it into the new chassis?
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Nov 21, 2011
I currently have a couple of 6509 chassis (router/switches) with the following hardware blades:
x3 48 ports
x1 NAM
x2 Sup720
Running 12.2(18)SXF3.I am keeping the four Sup720 modules and have purchased new versions of the others blades including two new 6509-E chassis. Can I take my stand-by Sup720 out of the production machine and insert it into the new chassis?
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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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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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Dec 22, 2011
Struggle to find the SNMP MIBS of the Nexus 5000 FEX tranceivers.
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