Cisco Switching/Routing :: Nexus 4000 Won't Connect To 6509?
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 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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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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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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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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Oct 24, 2012
I have a client who is changing their management IP scheme as a bridge to replacing equipment and much of the old equipment (Catalyst 4000) is running CatOS and I am a bit weak in CatOS. The existing Management IP is setup as follows:
set interface sc0 1 192.168.252.209/255.255.255.0 192.168.252.255
set ip route 0.0.0.0/0.0.0.0 192.168.252.1
What we want to change this to is as follows:
set interface sc0 110 192.168.197.209/255.255.255.0 192.168.197.255
set ip route 0.0.0.0/0.0.0.0 192.168.197.1
The devices are spreadout over a large area and visiting each device is almost out of the question due to a time deadline I was wondering if I run this set of commands will this allow me to keep a remote session (SSH) running until the change is complete?
set ip route 192.168.197.0/255.255.255.0 192.168.197.1
set interface sc0 110 192.168.197.209/255.255.255.0 192.168.197.255
set ip route 0.0.0.0/0.0.0.0 192.168.197.1
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Apr 11, 2012
My question is if I do not want to purchase any additional switches can I connect the devices to the 6509 and put them in their own separate vlans?I am a little fuzzy about the physical connections needed to make this design work as it is.
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Aug 31, 2009
We are running 4x n5k and started with the vPC feature. So my question is, if i can connect a vpc-pair to another vpc-pair?In the cisco docs i can find examples for connecting a vpc-pair to a single switch, or server (with and without fex)But there is nothing about how to connect 4 n5k via vPC feature.
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May 8, 2012
If I dual connect my access switch to my 6509s running vss, what will happen, will spanning tree still block one of the ports if I don't set up an etherchannel?
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Nov 4, 2012
we are using 3750 and 2950 switches both of them do not support vlan up to 4000 .we need vlan about 3000 .Whic cisco series switch do support vlan up to 4000.
2950
S-SW1.3(config-vlan)#exi
Proposed configuration has too many VLANs for this platform. Reduce the number of VLANs proposed.
S-SW1.3(config)#end
3750
SW1(config-vlan)#exi
proposed configuration exceeds the limit of 1005 VLANs that can be supported on this platform. Reduce the number of VLANs proposed to be within this limit.
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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 12, 2013
is it possible to connect one Cisco Nexus 2000 fabric extender to two Cisco Nexus 5000 and use one link on the first side and two links on the other side?
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May 28, 2013
We have a setup of 2 Nexus 7000 chassis and several fexes (N2K-C2248TP-1GE). The fexes are connected through a port-channel to a single nexus 7000 (no vpc). (Fex 1 to Nexus 1, fex 2 to Nexus 2, fex 3 to nexus 1 etc).Are there guidelines on how to connect a server to those fexes.
I can see several possible scenario's at our site. I have drawn some scenario's on a design. I can't find detailed information on which setup is possible and which is not. The goal is to have as much redundancy as we can.When using scenario 1, do I configure an orphan port on the uplink to this server?
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Dec 18, 2012
We are looking forward to implement IBM BladeCentre Swiches connectivity with Nexus 2k module.I would like to brief you about my network over as follows:
Coreswitch : 6513 ( Layer 3 switch + Spanning Tree root)
Nexus 5010 : Layer 2 switch
Nexus 2k 10G ports based module.
Currentl Solution : we want to connect the IBM Blade Switches (4) as demonstrated in the attached diagram which will be connected to Nexus 2k module as Ether-channel Access port.
Initially we been proposed by our vendor with this design and Now vendor is recommending us to connect the Blade switch etiher to Nexus 5k switch or directly to 6513 core-switches instead of Nexus 2k modules as they say Nexus 2k modules are only to connect the Edge devices .
We do not have ports available on Nexus 5010 to connect the cables from IBM Blade Centre Switches. Otherthan that, incase if we go ahead and connect the IBM Blade switches as access ether-channel access port with Nexus 2k module what are consequences we have to face realted Spanning tree or any other.
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Mar 24, 2012
can we connect ASA 5550 to Nexus 7K F2 module using twinax cable?
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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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Aug 22, 2012
As per my understanding, Cisco Nexus 2232 can only connect to HP c7000 Chassis if we are using a Pass Through Switch in the HP c7000. Cisco Nexus 2232 can only connect to End Hosts and not to a switch. Is there a New Feature added in Nexus 2232, which enables it to connect to a Switch like HP Flex Fabric ?
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Dec 13, 2011
I am trying the connection above using 10G spf connectors. Is there any special configuration in order to have a trunk (with 2 disctinct vlans) betwen NX7000 and DELL 6224 ?
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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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Nov 16, 2009
I'am using a modem/router to conncet my lan to internet. unfortunetly it is impossible to switch off the router of my modem. So i connect my RVS 4000 on the modem/router and i assign it static ip 192.168.1.10 as my modem has 192.168.1.1. i disable the DHCP function on my RVS 4000. I m still using it because of its gigabit ethernet capability.
My problem is i am unable to connect to my RVS from the outside. inside the LAN no problem I just use its STATIC IP. I have a NAS on this LAN. I write a NAT/PAT rule in my modem/router to route HTTP and FTP and the port for the interface to my NAS. It's just working smoothly. But not for my RVS. I have checked the remote management and translate the traffic incoming on this port to the same port on the 192.168.1.10.Unsuccessfull !!. ok that can't be considered as external traffic.so I disable remote management and all the protection firewall, DOS,BLOCK WAN REQUEST. I route the HTTP port 80 to port 80 192.168.1.10. I try to connect to /home.htm....unsuccessful !!
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Jan 4, 2012
I have the Netgear 4000 as primary router and I want to connect my second router WRT54GL running tomato firmware to my network.
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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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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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Feb 26, 2012
If client gateway = 192.168.64.9 then next-hop = 192.168.64.8 else use default-route 0.0.0.0
I know it's possible to do a route-map match ip-address ACL list. But is it possible to match on gateway?
Some info about hardware and config:
6509-E in VSS (IOS 12.2(17r)SX5) withVS-S720-10G supervisor.
All routes are static, IP for 192.168.64.9 is on SVI vlan.
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Mar 6, 2012
I have two ISPs. Each is on it's own subnet connected to the 6509 MSFC/Switch. FW1 is on 100.1.100.0/30 and FW2 is on 200.1.200.0/30 subnet. My goal is route all traffice going to the Internet from subnet 10.133.3.0/24 to FW1 and all other subnets across the organization to FW2. I am not sure if I need to use ACL / Static route combo, or just a static routes or ACLS?
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