Cisco Switching/Routing :: Phone Connects To 3750-A / Nexus 5596 Does Not Support RSPAN

Feb 20, 2013

the phone connects to the 3750-A access layer switch (VTP mode client) which connects to the nexus 5596  (The nexus is the layer 3 device and set to vtp mode server) and finally we have a Voice recorder that connects to another access layer 3750-B switch.(VTP mode client)

 For voice recording I need to setup RSPAN and the nexus5596 does not support  RSPAN will the following have any impact on the nexus
 
IF I move the 3750-B to VTP server mode and run the command remote span on the VLan I need to Rspan its going to update the VTP data base in short it will update the vlan.dat file for all the switch in that VTP domain.
 
AS the vtp update reaches the nexus saying there is a change (keeping in mind the nexus does not support rspan not sure hows its going to handle that request and how its going to update its vlan.dat file)
 
Is it going to incremment the VTP revision number? can it crash the vlan.dat file  on the nexus ? or do nothing and ignore the update and stop the update from proceeding to the 3750 A switch?

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Cisco Switching/Routing :: Configure Nexus 5596 To Support Proper QoS For EF At The Core?

Feb 23, 2012

I am deploying a pair of Nexus 5596's with 3750 POE switches in the closets.  I'm looking for a best practice as how to configure the Nexus 5596 to support proper QoS for EF at the core. 

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Cisco Switching/Routing :: Nexus 5548 Or 5596 To Replace Cat 3750 And 4507R?

Feb 17, 2012

Any experience interoperating Nexus 5548 or 5596 with Catalyst 3750 or 4507R?
 
We're looking into Nexus to replace these switches in the long run.

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Cisco Switching/Routing :: 3750x Getting Platform RSPAN Across Nexus?

Feb 5, 2013

We have the following design in mind
 
 
                3750 Stack    (Voice gateway for phones configured on the 3750 and has a VPC nexus)     
                  +                 +
               +                       +
            +                             +
(Nexus5596)  ++++++++++  (Nexus5596)    (Gateway for all other vlan like PC / servers / etc)
          +                                +
               +                        +
                   +               +
           3750x access layer  (VPC to Nexus)
[CODE]..... 

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Cisco Switching/Routing :: Nexus 2232PP / 3750 S - Support 100Mbps With A SFP-GE-T

Nov 10, 2012

The data sheet for the 2232PP says you can use a SFP-GE-T, but there is no mention of 100Mbps. I want to recommend to a customer that they use 2232PP for an upcoming core upgrade, but it may need to support some existing 100Mbps devices which are currently connected to 3750s.

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Cisco Switching/Routing :: RSPAN Configuration In Nexus 7009 Switches

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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Cisco Switching/Routing :: 3750 / 2950 - RSPAN Not Capturing Required Data?

May 5, 2013

I have a RSPAN session configured between a Cisco 3750 and Cisco 2950 switches and I dont see the traffic I am expecting to see on the destination port. I only see broadcast traffic .. HRSP hellos etc. Below is what I have configured on both switches.
 
3750 (gi1/0/33)----TRUNK------(fa0/47)2950(fa0/4)-----windows server
 3750
--------- 
monitor session 1 source interface gi1/0/18
monitor session 1 destination remote vlan 901

[code].....

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Cisco Switching/Routing :: Nexus 5596 UP L3 OSPF

Jan 3, 2013

I have 2 Nexus 5596UPs with a layer 3 cards that are exhibiting some very peculiar behavior.  The systems are running 5.1(3)N1(1).I have configured 2 VRF contexts each running their own OSPF process.  There is a static gateway of last resort configured on each VRF, which is to an upstream pair of 5585X's in Active/Active.  Each OSPF process has the "default-information originate always" command configured, however, backbone neighbors are not recieving a gateway of last resort from the 5596UPs.  The applicable configurations are show below.  All other routing information is passing correctly between devices in the network.  This network is not production, it is a proof of concept for a larger implementation.

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Cisco Switching/Routing :: Netflow On Nexus 5596

Oct 23, 2011

Net flow on the Nexus 5596upI can't seem to find any information on the Nexus 5596 support of net flow. On  Nexus 5596UP support of  net flow ? 

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Cisco Switching/Routing :: Nexus 5596 - VPC Keep Alive Over Non-VPC Trunk

Mar 19, 2012

We have setup a pair of Nexus 5596 L3 switches with 2 x 10Gbps LACP links between them to act as the vpc peer link. We also have another 2 x 10Gbps LACP links between the 5596 switches to carry non VPC VLANs, this is required to provide EIGRP routing between the switches and an upstream router.I have read that it is possible to setup the vpc keep-alive link over an SVI instead of the management interfaces. Is it ok to run the keep-alive SVI over the second LACP non VPC VLAN trunk or is it recommened to keep this seperate?

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Cisco Switching/Routing :: Nexus 5596 N55-M160L3-V2 Module

Oct 31, 2012

Can Nexus 5596 support more than 1 N55-M160L3-V2 layer 3 module?

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Cisco Switching/Routing :: Nexus 5596 / 2248 TP - Compatibility With SFP-10G-SR

Jan 31, 2012

I am looking to see if Nexus 5596UP & Nexus 2248TP GE compatible with SFP-10G-SR? The reason is because a consultant was hired on to "design" the network layout and has decided to purchase Cisco SFP+ Copper Twinax Cables which have a 10M limit. A small handful of the Data Center racks are 10-15M away... just out of reach of the Twinax. I would prefer NOT to move the LAN row so that it is more centered in the room. Can I use the SFP-10G-SR to connect the 2 switches (5596 & 2248) together? This SFP has a 26M reach on standard 10gig fiber, the small cost increase per connection is of no concern.

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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 :: Reason For L3 Not Ready In Nexus 5596

Dec 19, 2012

we have configured VpC between two Nexus 5596, for Vpc-Keep-alive-link we configured L3 interface with 1G (GLC-T) ,it shows the below status message "L3 not Ready" with interface LED glows in Yellow in color. is this a physical layer problem  
 
Ethernet      VLAN     Type Mode         Status                    Reason                     Speed            Po Ch
Eth1/17       --              eth               routed down           L3 not ready               1000(D)            --
Eth1/18       1              eth                access down          SFP not inserted            10G(D)             --
Eth1/19       1              eth                access down          SFP not inserted            10G(D)             --
Eth1/20       1              eth                access down          SFP not inserted            10G(D)              --
Eth1/21       1              eth                access down          SFP not inserted            10G(D)              --  

[code].....

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Cisco Switching/Routing :: ERSPAN On Nexus 5596 HSRP Pair

Jul 6, 2012

We have HSRP between NexusA and NexusB with access layer switches connecting to the core using VPC, We are trying to setup a VAM  server Voice recording for Siemens phones. We need to span all voice vlan and point it to the VAM server the VAM server connects to a 3750 Stack considering the amount of traffic multiple span session can generate I plan to move the server to the Nexus directly and run a Local Span Session.

1- As we have two Nexus running HSRP and VAM server only connects physically to one NexusA (I can run local span on that nexusA)  the Second NexusB is not directly connected to the VAM server I plan to run ERSPAN so if this is the best design and which path will the span traffic take from Nexus B to NexusA will it go through the access layer switches depending on the vlans allowed on the uplinks or will it go through the 20 Gig uplink between the two Nexus allowing all vlans (VPN peer links) ? WE have approximately 10 voice vlans, Do we an example config for ERSPAN session where the source are vlans (As I am for fimilliar with RSPAN) ?

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Cisco Switching/Routing :: Redistributing EIGRP Using Route Map Nexus 5596 L3

Dec 18, 2011

this is a Nexus 5596 L3 with the latest code:
 
It looks like the deny statement is not working as I can see  all routes I am redistributing. I even did a deny on a specific route and I still see it in the routing table on another router in the autonomous system.The same below works fine on IOS platform. [code]

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Cisco Switching/Routing :: Nexus 2248 / N 5596 - AA Version Mismatch

Jan 27, 2013

I have a pair of 5596 running in a vPC with Nexus 2248 connected to each N5596.  When I do the command "show fex" I get the following output on the 2nd 5596

Number    Description      State            Model            Serial    
------------------------------------------------------------------------
101         FEX101   AA Version Mismatch   N2K-C2248TP-E-1GE   SSI16390705
102         FEX102   AA Version Mismatch   N2K-C2248TP-E-1GE   SSI163704AD
122         FEX122                Online    N2K-C2232PP-10GE   SSI16370195
 
I'm running version 5.1(3)N1(1) on both of the 5K's. I have looked through all the configuration and I am not understanding why I am getting this error.  I have tried to look it up on [URL], but not having a ton of luck. 

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Cisco Switching/Routing :: Nexus 5596 Giving Error In Connection

Aug 28, 2012

I have 2 datacenters running same equipement (two Nexu 5596 with FEX).I just took a look at the log just to see if everything is ok and I saw that I have the same error message (a lot of times) at both location :
 
%SYSMGR-FEX100-5-HEARTBEAT_LOSS: Service "satctrl" heartbeat loss 2 ,max 7,I though it was a problem with my peerklink-keepalive connection but I see the word FEX ....so i'm not sure...
 
Note that at both locations, my Nexus are connected back to back through the management port using transceivers. So it's a copper cable from the first nexus,  going into a transceiver, going to another transceiver in fiber and then back to copper to the other nexus.

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Cisco Switching/Routing :: Equivalent Command To Configure On Nexus 5596

Jun 21, 2012

what is the equivalent command to configure on the Nexus 5596?  OS version 5.1(3)N2(1) Catalyst 45k ip igmp snooping vlan 1036 mrouter interface Po20

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Cisco Switching/Routing :: Nexus 5596 - Are VPC Peer Links Locally Significant

Mar 17, 2013

I currently have Nexus 5596 pair with VPC peer link Po1 between them.  My goal is to connect our new Nexus 7Ks to the 5K's using Fabric Path.  My question is during this inital setup with the 7K's.  Can I use the same port channel number on the 7K's as I did the 5K's?  Is the port channel locally significat?               

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Cisco Switching/Routing :: Nexus 5596 - Remove Switch-Profile Without Interruption

Jun 11, 2013

i want to remove the sync-profile on each of two synchronized Nexus 5596UP without loosing the config stored in Switch-Profile. That means without connectivity interruption and re-configuration of interfaces in "conf t mode", for example. Since NX-OS Release 5.2(1)N1(1) there is a new command
 
switch(config-sync)# no switch-profile abc profile-onlyprofile-only—Deletes the switch profile without the local configuration. 
   
[URL]

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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 :: 3750 IP Phone Not Registering With PBX / Signaling Server

Feb 20, 2013

I have an issue on the Cat 3750 on the voice vlan; IP Phone not registering with PBX & Signaling Server.  The ip phone hits dhcp and gets an ip address from a data scope. Data scope does have dhcp options for voice, same as voice scope so it should work but it doesnt.We removed the switchport access vlan 50 command, and left the switchport access voice vlan 51, and now the phone registers.Anything I can check on the switch to make sure voice vlan is working? Any debug voice vlan commands?The switch doesnt seem to distinguish voice and data traffic.I check dhcp and both scopes vlan 50 and vlan 51 have the same configuration.  Defautl GW is different of course Catalyst 3750 is running 12.2(25)SEE2 [code]

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Cisco Switching/Routing :: FCoE Support On Nexus 7k

Feb 24, 2013

Its required that all ports on nexus 7k should be user configurable as either 1G/10G/FcoE. Which module do i need in this case ?

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Cisco Switching/Routing :: Nexus 5010 Support For Inter VLan Routing

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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Cisco Switching/Routing :: 3750 - Avaya Phone Switch Port Configuration

May 29, 2013

Since Avaya phones do not run CDP, how does the phone know which DHCP pool to pull from to get its IP address if the PC is connected to the phone.
 
Let's say I have a interface config like this 
interface gigabitethernet1/0/1
cisco3750(config-if)#switchport mode trunk
cisco3750(config-if)#switchport access vlan 126
[code]....
 
And two DHCP scopes configured on the switch. What keeps the phone from pulling from the wrong scope?

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Cisco Switching/Routing :: Support For FeX 2232TM In Nexus 7000?

Feb 2, 2012

We recently purchased a pair of 2232TM Fabric eXtenders just to find out that our Nexus 7000 does not support it. Will there be support for the 2232TM FeX in Nexus 7000 any time soon?

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Cisco Switching/Routing :: Nexus 7000 And 2000 FEX Support With VPC

Apr 20, 2012

if vPC is supported between a single 2232PP FEX and two 7000 switches running 6.0(1)? I have been researching this for an implementation I am doing for a client and was able to determine it was not supported with earlier versions of 5.0 when the FEX is connected via vPC as I described above, but I can't find anything related to version 6.0(1). I have done this for other clients with 5000 and 2000 switches, but I don't have too much experience with 7000 switches.

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Cisco Switching/Routing :: Does The Nexus 5548P Support 1 Gig SFP Connections

Jan 17, 2012

Does the Nexus 5548P support 1 gig SFP connections ? Here is the image file we are running ?
 
bootflash:/n5000-uk9.5.0.2.N2.1.bin

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Cisco Switching/Routing :: SNMP / Does Nexus 5000 Support VRF

Jan 7, 2013

Iam having some issue trying to configure snmp-server context vrf XXX.From some reason even if i put my VRF name i cant see anything about this vrfthis is the command i add:
 
 snmp-server context def vrf datacenter

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Cisco Switching/Routing :: Future IP Sla Support On Nexus 7000

Feb 21, 2012

future support for IP Sla on the nexus 7000. The latest info that I've seen is that it will/could be supported in release 6.2, scheduled for mid 2012. Does this still accurate?

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Cisco Switching/Routing :: SFP-GE-T Module Support On Nexus 5548?

Jan 7, 2013

I am trying to install SFP-GE-T module on Nexus 5548UP Switch, but is giving the ‘SFP validation Failed’ error. The details of the switch is given below

Model : N5K-C5548UP-FA

The interface is configured with speed 1000 before inserting the module, still we are getting the same error. PFA logs for more details We have 8 Nos of SFP-GE-T modules , all are giving same error. We tried to insert the module on onboard as well as expansion module.

The same module is working fine on Cisco 3750X-24T-L Switch As per the Hardware installation guide , SFP-GE-T transciever is supported on N5K platform. Please extend your support in configuring SFP-GE-T module on N5K platform? We tried with SFP-GE-S module on the same switch , and the same is found working fine.

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Cisco Switching/Routing :: Nexus 5000 Support Of Netflow

Jun 8, 2009

I can't seem to find any information on the Nexus 5000 support of netflow. I assume that means it doesn't do netflow.

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