Cisco Switching/Routing :: Recommended NX-OS For Nexus 5500
Mar 17, 2012
Is there an official Cisco-Page with the always-up-to-date recommended NX-OS-Releases for the Nexus 5000, just as there is URL
If there is no such page: What Release can be recommended?
We got new N596 & N2232 this week, and are using L2-LAN only, no L3,no FCoE- or FC-Ports. The command 'vPC orphan-ports suspend' is the newest feature used, so 5.0(3)N2(1) would be the oldest possible release.
Before I install 5.1(3)N1(1a) and then have to do a distruptive downgrade to 5.0(3)N2(2b), I'd like to be assured that the new one is already recommended as mature enough.
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Apr 19, 2013
How to you setup ip routing on a Nexus 5500 I want to do vlan routing between an Nexus 5500 and Catalyst 3750. Nothing clever just have the 2 switches talk and vlans route between the two.
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Jan 16, 2012
IOS we used for limiting access for a group we used configuration of snmp-server views like following
snmp-server group backupgroup v3 priv read backupview write backupview access 20 snmp-server view backupview ccCopyTable included could not find out how to achive this config in NX-OS on Nexus5500
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Jun 26, 2012
Are there any dependencies on VTP on the Nexus platforms like the 5500 or 7000? In IOS P V LAN required VTP Transparent mode however I cannot find any reference to this for the Nexus platform. Are there any other features that would require the use of VTP? By default VTP is turned off on nexus and has to be enabled with the feature command so is there any benefit to running VTP in transparent mode vs off?
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May 4, 2011
There is very little and quite diverse Information regarding the if, where and how of a Nexus 5000 or 5500 series Switch and support for IEEE 802.1AE Link Layer Encryption (also called MACsec).
For example: the official FAQ denies that the Nexus 5500-series supports 802.1AE at all, while the data sheet says that only "downlink ports" are supported (host access).
On the Nexus 7000 platform the 802.1AE link layer encryption is part of TrustSec (feature cts) and much better documented.
The Question is: If and under which circumstances (configuration, L3 modules, license, NX/OS version) does a Nexus 5k or 5500 series Switch support 802.1AE on 1G or 10G interfaces that are directly connected to a Nexus 7000 (with the necessary cts feature licensed/configured)?
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Jan 8, 2013
Does the Nexus 5548/5596 switch support OSPF ECMP?
Also on OSPF and ECMP, the load-balancing method at the multiple links for Catalyst 3750 is per IP packet or per destination IP?
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Nov 24, 2012
I am experiencing inconsistent echo-replay from devices connected via VPC to Nexus 5500s while pinging from the Nexus exec prompt.
In some cases I receive normal response when pinging from one Nexus, but no response when pinging from the other switch. In other instance I receive normal response to one Nexus, and duplicate replays to the other. It looks like a VPC related bug. NXOS is 5.1.3.N2.1
5501# ping 10.12.12.232
PING 10.12.12.232 (10.12.12.232): 56 data bytes
64 bytes from 10.12.12.232: icmp_seq=0 ttl=253 time=8.585 ms
64 bytes from 10.12.12.232: icmp_seq=0 ttl=254 time=9.227 ms (DUP!)
64 bytes from 10.12.12.232: icmp_seq=1 ttl=253 time=1.011 ms
64 bytes from 10.12.12.232: icmp_seq=2 ttl=253 time=8.097 ms
64 bytes from 10.12.12.232: icmp_seq=2 ttl=254 time=9.429 ms (DUP!)
64 bytes from 10.12.12.232: icmp_seq=3 ttl=253 time=18.195 ms
64 bytes from 10.12.12.232: icmp_seq=4 ttl=253 time=8.807 ms(code)
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Jul 28, 2012
Nexus 5500 support auto negotiation on 1gig sfp port? There is an end device that only support auto negotiation and cannot be manually set speed/duplex.
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Jan 20, 2013
I have a Nexus 5500 which is the core of our network and we have access layer switches uplinked to it. I know by default the qos markings will be trusted.
1. On a trunk uplink from an access layer switch to the Nexus, I have "mls qos trust dscp". Will the DSCP marking be preserved when it reaches the Nexus?
2. How do I do prioritization of voice traffic on an uplink on Nexus based on DSCP EF?
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Jun 13, 2013
We have several of these WS-C2960S-24PS-L running 12.2(55)SE5 C2960S-universalK9-M and need to upgrade to a better.IOS since we have a sitution where CPU would get to 100% but we have only a few ports connected.Also we have several of WS-C3750-48P running 12.2(55) SE6 C3750-IPBASEK9-M.
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Jun 11, 2012
I am currently trying to setup a GRE tunnel on a cisco 861. As part of a configuration template provide by an outside source I am recommended to use a sub-interface on the router but the recommended configuration does not work.
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Apr 4, 2011
I have 8 switches (different models) configured in stack:
Switch Ports Model SW Version SW Image------ ----- ----- ---------- ---------- 1 28 WS-C3750G-24TS-1U 12.2(55)SE C3750-IPSERVICESK9-M 2 26 WS-C3750-24P 12.2(55)SE C3750-IPSERVICESK9-M 3 30 WS-C3750X-24P 12.2(55)SE C3750E-UNIVERSALK9-M 4 30 WS-C3750X-24P 12.2(55)SE C3750E-UNIVERSALK9-M* 5 12 WS-C3750G-12S 12.2(55)SE C3750-IPSERVICESK9-M 6 30 WS-C3750E-24PD 12.2(55)SE C3750E-UNIVERSALK9-M 7 30 WS-C3750E-24PD 12.2(55)SE C3750E-UNIVERSALK9-M 8 30 WS-C3750X-24P 12.2(55)SE C3750E-UNIVERSALK9-M
Now I'm have IOS ver. 12.2(55)SE but from time to time I'm experiencing strange system freezing. It means that all systems connected to the stack are working very, very slow. It hapens ones, sometimes twice a month and takes 5 minutes. I didn't find anything strange in logs (neither on switch nor router). I would like to install other IOS version. Could you recomend me the most stable version for this stack (built from these different models) ?And the secound question: - Is it possible to copy SE1 manualy to every switch and reload one by one manualy. Will they join the stack and work fine after reload or maybe there will be a IOS mismatch ?
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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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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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Dec 19, 2012
I have two cisco asa firewalls connected through a VPN, one is 5505 and the other is a 5510. From the 5505 I can ping the internal interface of the 5510, but not vice versa. Would that be a NAT issue? I used the ASDM to configure the VPN tunnels with the wizard for IPsec site to site.
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Jul 19, 2012
I used the following commands to limit users on my wireless network (WLC 5500) and a Nexus 7000. The previous cisco doc only covers the 6500 and some commands have changed. Tested and working except the PIR gives an error, post up if you know why, otherwise enjoy!
Note Wireless Network assumed to be 172.21.0.0/16.Note This will limit each wireless user to 1 MbpsNote The PIR (Peak Infomation rate, also know as burst) is ignored in following commands, unknown at this time why.Create ACLs:
ip access-list acl-wireless-downstream 10 permit ip any 172.21.0.0/16 ip access-list acl-wireless-upstream 10 permit ip 172.21.0.0/16 any class-map type qos match-all class-wireless-upstream match access-group name acl-wireless-upstreamclass-map type qos match-all class-wireless-downstream match access-group name acl-wireless-downstreampolicy-map type qos police-wireless-upstream class class-wireless-upstream police cir 1 mbps bc 200 ms pir 1536 kbps be 200 ms conform transmit exceed drop violate droppolicy-map type qos police-wireless-downstream class class-wireless-downstream police cir 1 mbps bc 200 ms pir 1536 kbps be 200 ms conform transmit exceed drop violate drop
1.Apply police-wireless-upstream on the incoming port from the controller.
interface port-channel130 description *** LAG for WLC1 *** switchport mode trunk switchport trunk allowed vlan 80,130,255,600 service-policy type qos input police-wireless-upstream
2.Apply policy-wireless-downstream on the uplink LAN/WAN ports.
interface port-channel101 description *** L3 Port Channel to Core VDC *** no switchport service-policy type qos input police-wireless-downstream ip address 10.70.10.18/30 ip router eigrp 10
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Jul 15, 2012
How many VMs can a pair of 5548s support? Remember, for each VM, I will have an ARP entry in the 5500 ARP Table (assume 5500 is the L3 default gateway).
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Feb 3, 2012
: %DATACORRUPTION-1-DATAINCONSISTENCY: unterminated string in buffer of length 129, counted: 129 -Traceback= 4027CB2C 402B1E88 4052884C 40528A48 40528D08 40529188 40529358 403247E8 403247D4
Cisco Internetwork Operating System Software
IOS (tm) C5RSM Software (C5RSM-ISV-M), Version 12.2(46), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Thu 26-Apr-07 19:41 by pwade
Image text-base: 0x40010948, data-base: 0x410F41D0
[code]....
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Nov 20, 2012
Having an issue with my WLC 5500 and client connectivity. This just started today. Clients will connect for a short period of time and then drop off. WLC appears fine with the exception of a bunch of trap errors. I've rebooted the WLC but this did not clear the issue.
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Dec 17, 2007
how to configure the ASA 5500 with "Directed Broadcast" for Wake of lan from other networksegment. we want pass traffic from 192.168.10.0 network to 192.168.100.0 DMZ Network to turn on the server with Wake on Lan.
I read something about "Static NAT" but how do i make this one?
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May 7, 2013
We have successfully peered two 5548UP switches together and separately we have successfully peered two 5596UP switches together. Works great and is our standard going forward for data center switching. I've been casting about Google and Cisco looking for an answer to this question:
Is it possible to have more than two 5500 class Nexus switches participate in a peered vPC configuration? For instance, can I connect a single FEX to four 5500 class switches in a vPC configuration? The question is more academic than actionable. Even if the answer is yes we probably wouldn't be in a position to implement something like this for a while.
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May 16, 2013
We are working with a contractor to upgrade our network, and I heard from them that the 5596/5548 might not need the Layer 3 module for our inter-VLAN routhing. They have yet to give me an answer.
We do have a few static routes on our current layer-3, core switch too.
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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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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 10, 2012
Can nexus 5010 supports inter v lan routing , as there is no core switch and router available in current network.
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May 16, 2013
We have our Nexus as our default gateway (101.1) and the default VLAN1 is setup with two subnets 101.X and 102.X. The DHCP server is using a superscope setup to accomodate the overflow of devices requesting IPs on 101, so when 101 is consumed persons are able to obtain a 102.X IP address. The setup is basic on superscope. The issue is some times the routing to the firewall with a 102.X is not always 100%. Somedays all goes well and the 102 subnet is routed out to the firewall and its a good day. However, such as today a 102.X address is not routing as it did 24 hours ago. I am perplexed as to why this is behaving unpredicatable. Here is running-config for VLAN1 to show the 102 as secondary address to VLAN1.
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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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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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Feb 6, 2012
I have a pair of 5548P switches with the L3 daughter cards installed. Using the base license as I just need RIP routing. I have the two switches setup and have the RIP routing feature enabled. When I "turn on" routing using RIP I do not get any routes from my existing L3 switch (3750). I probably don't have routing setup correctly. With the 3750 IOS, I just turned on RIP with the router rip command and added a couple of network statements. On the nexus I have run router rip {instance} and left it at that. I am not getting any routes from my 3750. The 5548s are using the management ports and are connected to my existing network with L2 trunks. Does any know of a setup guide for RIP? I have used the Nexus 7000 RIP guide but still can't get it to work.
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Jul 2, 2012
I''ve trying to bring up ports on a N7K-M108X2-12L card using X2-10GB-SR modules.
All ports are in a VDC and configured to accept the M1 card:
vdc_id vdc_name state mac type lc
------ -------- ----- ---------- --------- ------
2 cam-cor-csw-sfy-01 active 64:a0:e7:43:f0:c2 Ethernet m1 f1 m1xl
[Code]....
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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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