Cisco Switching/Routing :: Nexus 5548UP With L3 Card / Inter-VRF Not Possible?

Aug 28, 2012

I just received a Nexus 5548 to configure as the core of the Datacenter LAN.  Is it true that the VRFs created cannot talk to each other???  I can't seem to find any documentation on how to do this and at least one TAC engineer half-heartedly believes it's not possible, either.
 
Basically, I'm trying to get an SVI in VRF1 to be able to talk to an device on another SVI in VRF2.
 
I can't believe this high-end switch, that is so capable in every regard, cannot handle this feature.

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Cisco Switching/Routing :: Nexus 5548UP / L3 Cannot Do Inter-VRF Communications?

Aug 28, 2012

I'm trying to get a node in SVI1 on VRF1 to speak to another node in SVI2 on VRF2 to reach each other.  After hours of failure, I went to outside resources.  Everything I read on the internet says it's not possible on this platform and at least one TAC engineer seems to agree.
 
I just can't believe such a high-end data center switch is not capable of handling such a basic feature.

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Cisco Switching/Routing :: Nexus 5548UP VPC Domain With 1x L3 Card

Apr 9, 2013

I can't find anywhere whether it is possible to create a vPC domain with 2 Nexus 5548UP switches, where only 1 Nexus 5548UP has a L3 daughter card.

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Cisco Switching/Routing :: Nexus 5548UP VPC Configuration

Jan 26, 2012

I have followed every piece of cisco documentation I could find on this and I still can't get vPC configured to actually work.  The VLANs stay in a suspended state so no traffic flows across.  Below is my configuration:vrf context management  ip route 0.0.0.0/0 10.86.0.1vlan 1,vlan 86  name I.S_Infrastructure,vpc domain 1  role priority 1000  peer-keepalive destination 10.86.0.4,interface Vlan1,interface Vlan86  no shutdown  description I.S._Infrastructure  ip address 10.86.0.1/24,interface port-channel1  switchport mode trunk  vpc peer-link  spanning-tree port type normal,interface Ethernet1/1  switchport mode trunk  channel-group 1 mode active,interface Ethernet1/2  switchport mode trunk  channel-group 1 mode active ,interface Ethernet1/3,escription Connection to Mgmt0  switchport access vlan 86  speed 1000.

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Cisco Switching/Routing :: Change Airflow Of The Nexus 5548UP?

Aug 6, 2012

is it possible to change the airflow of the Nexus 5548UP in the field by replacing fan and power supply or must the correct airflow been ordered.

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Cisco Switching/Routing :: Nexus 5548UP / Two Management Interfaces For N5k

Jan 10, 2013

I have a Nexus 5548UP that would be managed by two organizations. Is it possible to set IP addresses for mgmt0 and an SVI (or an L3 interface) without using the L3 daughter card? I don't want to route between VLANs, just to separate management traffic.

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Cisco Switching/Routing :: Replacing C4507R-E With Nexus 5548UP?

Jul 25, 2012

We currently have an environment with a 4507 as the core switch connected to four stacks of 3750e's in the wiring closets. A pair of Nexus 5548UP's also hangs off the 4507, but at the moment more or less dedicated to a certain purpose..The 5548UP's have the L3 daughter card installed.
 
My question is: Can a pair of Nexus 5548UP's do a C4507's job? Would we be able to decomission the 4507 and replace with the existing 5548UP's + FEXes?

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Cisco Switching/Routing :: Nexus 5548UP To 2248 Design

Aug 10, 2012

This past networkers I was at the Cisco booth discussing how the 2248 can connect to the 5548 and have server connectivity.  It was told to me that now, as of a fairly recent NX-OS release, you can have the 2248 going dual-homed to both 5548 via VPC and then have a server connected to both 2248 and be in active-active mode.  Is this correct?
 
When we first deployed our 5548 and 2248 we had to put the 2248 in a straight pin mode, where it only had connections to one 5548 and then the server would dual connect to the 2248's and be in active-active mode.  I was told that this changed with an NX-OS release however documentation still seems to be fragmented on what exactly is the case. 

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Cisco Switching/Routing :: Nexus 5548UP - Management Interface

Apr 21, 2013

How separate is the management interface on a Nexus 5548?
 
In context - what's the risk of having a layer 2 only Nx5K in a DMZ and running the managment ports down into an internal managment VLAN, to form peer-keepalive links and software upgrades.

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Cisco Switching/Routing :: How To Let Nexus 5548UP Act As DHCP Server

Nov 14, 2011

it's possible to let the Nexus 5548UP act as a DHCP server? (or if it will be possible in future releases)

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Cisco Switching/Routing :: Nexus 5548UP - FCoE QoS Configuration

Dec 6, 2012

I am looking to implement a QoS policy on a pair of Nexus 5548 UPs. FCoE is a factor here. I have created the following configuration and would like to get a few pairs of eyes to take a look at this for a quick sanity check.
 
How to make sure this config is valid. Also, I realize I'm applying an MTU of 9216 to all classes right now, this will be phased out incrementally.
 
class-map type qos match-all class-platinum
  match cos 5
class-map type qos match-all class-gold
  match cos 4
class-map type qos class-fcoe
  match cos 3
[code]....

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Cisco Switching/Routing :: Add 2 X Nexus 5548UP Switches At Site 1

Mar 5, 2013

I have 2 sites located approximately 30 kilometers apart.  I will call them site 1 and site 2.The sites are connected by a Layer 2 1GB fibre connection.I would like to add 2 X Cisco nexus 5548UP switches at site 1 and connect these 2 X Cisco nexus 5548UP switches via GLBP
 
I would then like to add 2 X Cisco nexus 5548UP switches at site 2 and connect these 2 X Cisco nexus 5548UP switches via GLBP.I would then like to connect the 2 X Cisco nexus 5548UP switches at site 1 and the 2 X Cisco nexus 5548UP switches at site 2 via GLBP.

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Cisco Switching/Routing :: Nexus 5548UP Switches - Load Balancing?

Mar 10, 2013

The best option for load balancing between 2 X Cisco nexus 5548UP switches located at one site and connecting to 2 X Cisco nexus 5548UP switches located at another site.
 
The sites are connected via a 1GB fibre connection. I am unable to use GLBP until GLBP is supported in further software releases.

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Cisco Switching/Routing :: LLDP Chassis Discovery On Nexus 5548UP?

May 1, 2012

I'm seeing several error messages like these in the logs of my Nexus 5548UP switches.

2012 Apr 24 16:39:41.470 SSV_5K_SW2 %LLDP-5-SERVER_ADDED: Server with Chassis ID aaaa.bbbb.cccc Port ID mgmt0 management address X.X.X.X discovered on local port mgmt0 in vlan 0 with enabled capability Bridge
 
2012 May  2 05:05:00.627 COR_CCO-NX-5548-UP_01 %LLDP-5-SERVER_REMOVED: Server with Chassis ID aaaa.bbbb.cccd Port ID aaaa.bbbb.cccc on local port Eth1/1 has been removed
 
2012 May  2 05:06:40.328 COR_CCO-NX-5548-UP_01 %LLDP-5-SERVER_ADDED: Server with Chassis ID aaaa.bbbb.cccd Port ID aaaa/bbbb.cccc management address NIL discovered on local port Eth1/1 in vlan 0 with enabled capability None
 
I will say that these 5548s are serving as the distribution layer for a UCS chassis (2x 6120 FIs) but didn't know what kind of visibility the Nexus would have into that - the chassis keyword is what's alluding to this in my mind, and I'm seeing these messages whenever interfaces that connect downstream to the fabric interconnects are brought up or down.

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Cisco Switching/Routing :: Nexus 5548UP Connectivity With Router 2811

Aug 15, 2012

In the existing network we have Cisco 2811 router connected to Corporate MPLS cloud. Cisco 2811 is connected to Catalyst 6509 switch(set based IOS with MSFC card). Along with that we have two Catalyst 5509. We are upgrading the access layer by replacing catalyst switches with Nexus 5548 & 2248.
 
For a purpose of testing I have connected 5548 & 2248. Created cPC and ether channels between two. SVI and HSRP configuredon 5548. I am terminating 2651 (test router) on 2248 port 101/1/1. On 5548 I have enabled EIGRP on vlans. I am unable to ping to 2651 from nexus switch 5548 and vice-versa. I can see both devices on CDP but I do not see eigrp neighborship formed.
 
What configuration should go in 2248 and 2651 in order to establish a connection between two? If test is successful then I will connect 2811 to 2248 during actual migration. I assume that in testing if it works for 2651 then it must work on 2811 router.

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Cisco Switching/Routing :: Nexus 5548UP Change Peer Keep Alive Link

Apr 19, 2013

I have a pair of Nexus 5548UPs that have some high priority servers running on them.  Servers are ESX hosts running Nexus 1000v's.  Each host has multple connections in a VPC to both 5548s.  We have been having intermittant ping loss and slowness of traffic to the VM's on these hosts.  I was poking around trying to figure out what the issue could be and found that the peer-keepalive command was not set to send the heart beat across the mgmt0 interface.  I would like to change this to point it accross the mgmt0 interface. Any tips or advice for me on making this change with production servers running on the switches?  I do not want to cause any loss to any systems when I make this change. [Code] ..........

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Cisco Switching/Routing :: Nexus 5548UP - (Physical Address Changes) Messages In SolarWinds

Dec 9, 2012

We have recently upgraded oor LAN and we are using couple of Nexus5548UP switches in the core with 2960 stacks as access switches. Each access switches stack is connnected to both core switches with link being port-chanels and VPCs. All is working fine, but our SolarWinds management platform (NPM) is being flooded with "Physical Address changed" events. Here is an example of messages:
 
NSW_Core_2 - Ethernet1/7 Physical Address changed from 000000003811 to 73616D653811
NSW_Core_2 - Ethernet1/7 Physical Address changed from 200B82B43811 to 000000003811
 
For each interface I have messages like these repeating.I am not sure what those messages means or if there is actually anything wrong. Performance of the network is good, there are no errors on any interfaces and I do not see anything related in the switch loggs.

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Cisco Switching/Routing :: Nexus 5548UP With 2232TM Fabric Extender And Server Teaming

Oct 11, 2012

Need clarification on the VPC with 5k and 2248 Fabric Extenders. My question  is can each fabric extender uplink to two different 5ks, and  at the same time, have servers connected to two both fabric extenders with a VPC.So basically, the server NIC will team with two different fabric extenders, and each fabric extender will connect to two different 5k's.

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Cisco Switching/Routing :: Enable Jumbo Frames On Single VLAN (Nexus 5548UP)

Sep 17, 2012

We are currently using two Nexus 5548UP's as our Datacenter Network Core.  I have a pretty simple objective:  I would like to enable Jumbo Frames on a single VLAN only(VLAN 65).  This VLAN is used strictly for backups.  I do not want to enable Jumbo Frames on the other VLANs(VLANs 1-10).  Im not sure what the best way to do this is.....or if it is even possible but I am hoping to get some configuration examples.

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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 :: 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 5k With L3 Card Showed Offline?

Aug 30, 2011

i have a nexus 5k with a l3 card i'm not able to bring online
 
NX-OS is:5.0(3)N2 (1)
L3 card is:L55D160L3
 
i inserted L3 module several time with the same resul...if i perform a show module i see the card offline. At the boot switch show an error message:
 
L3 module is down due to a BTCM down..

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Cisco Switching/Routing :: Nexus 7000 10Gig Card Not Seeing Transceiver Module?

Nov 13, 2011

I'm unable to get the N7K-M108X2-12L 10 Gbps Ethernet XL Module within our Nexus 7009 chassis to recognise the individual X2-10GB-SR transceiver modules. I have the same issue on another 7009 chassis.If I perform a 'show interface'. I get the following output saying SFP not inserted.
 
-Ethernet3/5 is down (SFP not inserted)
-Dedicated Interface
-Belongs to Po51
-Hardware: 10000 Ethernet, address: 7081.0599.d458 (bia 7081.0599.d458)
 
I also get the same result if I issue the following command.  Are their any additional features I need to enable? or would this be a license issue?
Have already tried different X2-10GB-SR modules, reloading the card, re seating the card. [code]

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Cisco Switching/Routing :: Does Nexus 7K Support Multiple VDCs Sharing Ports On Single Line Card

Mar 19, 2013

Does Nexus 7K support Multiple VDCs sharing ports on a single line card. One of our cisco parnter engineers stated that cisco doenst recommend using same line card for multiple VDCs.The second VDC (Non-Default VDC) will be used four our Outside, and DMZ Segment, and to phyiscally segregate our Firewall from our Internal/Inside Core Switch without using a physical DMZ Switch.I know Cisco used the Nexus in this way in their PCI DSS 2.0 Compliance Document. Module is N7K-M148GT-11L
 
Mod  Ports  Module-Type                      Model              Status
---  -----  -------------------------------- ------------------ ------------
1    48     10/100/1000 Mbps Ethernet XL Mod N7K-M148GT-11L
Mod  Ports  Module-Type                      Model              Status
---  -----  -------------------------------- ------------------ ------------
1    48     10/100/1000 Mbps Ethernet XL Mod N7K-M148GT-11L

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Cisco :: Nexus 5548UP 2248TP To 3650G Vlan1 Trunking

Jun 4, 2012

Got an odd problem with trunking, all vlans except vlan1 trunk perfectly. Link is from a pair of dualhomed FEX 2248TP's to some 3650G Switches. Nexus running - version 5.1(3)N2(1) 3560's running - 12.2(53)SE2 & 15.0(1)SE2

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Cisco Switching/Routing :: Nx 5548UP After Reboot Log Shows Vpc Down

May 23, 2013

We have a Nx5548up pair connected to FI6248 via a vPC. We had to reboot a FI (in order to configure more FC ports) ; following that reboot, we meet many issues.The first log shows the vPC down showing the FI rebbot.2013 May 23 12:31:45 sw-n5kup-fr-eqx-01 %ETH_PORT_CHANNEL-5 PORT_INDIVIDUAL_DOWN: individual port Ethernet1/2 is down

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Cisco WAN :: Inter Vlan Communication On Nexus 3048

Jan 15, 2013

Recently configured one nexus 3048 switch. Create two vlans (Vlan 10 and Vlan 19). Vlan 10 is 10.1.X.X/24 and Vlan 19 is 192.168.X.X/24, connected two pcs one is Vl 10 and second pc 19. But not able to communicate both Vlans.Nexus 3048 are not Support VTP Mode Server, running version 5.0. [code]

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Cisco Switching/Routing :: Does Catalyst 3550 Support Inter Vlan Routing

Jul 24, 2007

Does Catalyst 3550 switch support inter vlan routing ?

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Cisco Switching/Routing :: Inter VLAN Routing On N5548P Without L3 Daughter Cards

Jun 1, 2013

I have a DC topology based on 2 layers, access and aggregation, based on 2 pairs of N5548Ps, both without L3 Daugher Cards. My intent is to use the aggregation N5K pair as L3 inter VLAN layer, so I configured all the VLAN default GWs there. The 2 layers are interconnected via vPC, in a double-sided vPC topology for some N2Ks and some vSwitches. The point is that, despite connecitivity is working fairly ok, for some applications, like file transfer via either FTP or HTTP, between hosts in different VLANs, the performance is too poor. The file transfer starts ok, but after a while it becomes lower and lower. ICMP is working, but I can see some strange random behaviour, like having some packets taking more that 20 ms (sometimes 40 or more), whilst average is 2 ms.

I read through some articles saying that until you don´t have the L3 license (the one coming with L3 Daughter Cards) you can expect some weird behaviour on L3 level. Is that true?. What can I do apart of purchasing L3 Daughter Cards?. Can I enable L3 Basic license at the moment (I don´t need dynamic routing for now).
 
Here some excerpts of what I´m saying:
 
PING results:
10000 packets transmitted, 10000 packets received, 0.00% packet loss
round-trip min/avg/max = 0.809/2.496/57.559 ms
 System version: 5.0(3)N2(1)
 
License and features on the N5Ks:
 
switch# sho license usage
Feature                      Ins  Lic   Status Expiry Date Comments
Count
--------------------------------------------------------------------------------
FCOE_NPV_PKG                  No    -   Unused             -
FM_SERVER_PKG                 No    -   Unused             -
ENTERPRISE_PKG                No    -   Unused             -

[code]....

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Cisco Switching/Routing :: Inter-VLan Routing On Catalyst 3750 Switch

Dec 17, 2011

I have been looking into this for a while and I can't seem to figure out why my 2nd vlan is not able to connect properly to the net.
 
My switch has 12 ports where my devices connects directly, they are all on Vlan 1 and they all work perfectly. on Port 12 I have a dlink router that is connected to a cable modem. the dlink router has an Ip address of 192.168.0.20
 
I created a second vlan (vlan2) and enabled dhcp relay on it. then I assigned port 9 on the switch to  (vlan2)my laptop which is connected to port 9 seems to get an ip address fine and able to ping only some devices on my network (vlan1) and is not able to go out to the internet.  I think it has to do with the routes. [code]

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Cisco Switching/Routing :: 5505 Inter-vlan Routing With Multiple Gateways

Feb 15, 2013

We have two Cisco 5505 firewalls connecting to two ISP's . The two internal LAN's on the firewalls are 192.168.184.0/24 & 192.168.186.0/24. We also have a Cisco C3560x layer3 switch with vlan interfaces 184.3 & 186.3. We have two DGS-3100 Dlink layer 2 switches connecting our users to the Layer 3. Ip routing is enabled for intervlan communication & I can reach the Switch interfaces & firewall gateways from machines on both on the vlans.We have pbr enabled on the 3560 & users only on the .186 network can get to the internet. The switch is running the ipservices license & the sdm template is "desktop routing" .

Users on the .184 cannot access the internet but we can ping the layer3 interface & the firewall gateway. [code]

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Cisco Switching/Routing :: 3750 Inter Vlan Routing Configuration

Mar 24, 2013

In 3750 switch,I have configured intervlan routing.I have three vlans Vlan 10,vlan 20,Vlan 30 and I have assigned IP address for that Vlan.In vlan 10,I have connected one systen gigabitethernet 0/1 interface.From my system I am able to ping vlan 10 ip address but I can't able to ping other vlan ip address (vlan 20,vlan 30).Is it possible to up the protocol for all that time.

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Cisco Switching/Routing :: Inter-VLAN Routing Using 877 And SG300-10 Switch

Feb 5, 2012

I recently set up a small photography business and am trying to get a Cisco 877 and Cisco SG300-10 switch to talk to each other.
 
What I want is for the Cisco 877 to handle the internet and the SG300-10 to handle the local network,
 
I have set up 2 vlans in trunk mode on the switch and want vlan2 to manage local traffic and vlan3 to handle the internet.
 
I have got the 877 connecting to the internet what I dont have, traffic going to vlan2 on the switch from the 877
 
Look at the running configs for the switch and the router and tell me how to get the vlan on the router to pass traffic to the switch. In a nutshell I am inserting the internet into the switch but am not sure how to progress. I have the c870-advipservicesk9 image file on the router. 

Switch Config
 
interface  gi2
description connection-to-data-vlan
exit
interface  gi3
description connection-to-internet-vlan
exit
vlan database (code )

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