C220 M4 w/ VIC1225 and Nexus 5548

I have four UCS C220 M4 servers that each have a VIC 1225 and are connected up to a Nexus 5548. I have set them to trunk ports and have set the appropriate VLANs in ESX and the portgroups. I can ping the gateway and other hosts on the network, but for some reason I can't ping any of the other C220 M4 servers that have a VIC1225. All of the C220's can ping other devices on the network, but not each other. Is there some setting I need to modify on the VIC or switch? Currently the VIC is running as Classical Ethernet mode.

There is no special configuration to make connectivity work in the rack servers, I assume these servers are in standalone mode and not integrated with UCSM.
What L3 device is doing your Inter-Vlan routing? Is it the N5K these servers are connected to or there is another device doing this job? If it is the N5K, are all the servers in the same network segment? I mean, is there a single SVI or multiple? can your Nexus 5K ping each of the servers?
-Kenny

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Prime Infrastructure 2.0 and Nexus 5548, SSH credentials fail

Hi,
I'm having problem getting the Prime Infrastructure 2.0 to login with SSH to a Nexus 5548 to do an inventory. I get "Wrong Telnet/SSH credentials". But when I use the same credentials from another SSH-client it works fine. I also tested to SSH from the console of the Prime-server and that also works fine.
Any ideas???
Regards,
Stefan Lindkvist

I have PI 2.0 working against Nexus 5k's in two different installations. See below for an example (click to enlarge).
Have you put in an entry in both the login and enable fields (even though they are not separately required when logging in directly)?

Adapter-fex Supported VICs and Nexus Switches

HI,
I am thinking of using C220M4 in standalone mode. I have been reading about adapter-fex and I am wondering which Cisco VIC supports adapter-fex and which Nexus Switch will support adapter-fex.
I am thinking of using a VIC1225 and Nexus 3000.
Thanks.

I believe that adaptor fex is supported only with Nexus 5k and N2k:
Network Adapter Virtualization Design (Adapter-FEX) with Cisco Nexus 5500 Switches and Cisco Nexus 2232 Fabric Extenders
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/guide_c07-690080.html
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/data_sheet_c78-657397.html

FCoE with Cisco Nexus 5548 switches and VMware ESXi 4.1

Can someone share with me what needs to be setup on the Cisco Nexus side to work with VMware in the following scenario?
Two servers with two cards dual port FCoE cards with two ports connected to two Nexus 5548 switches that are clusterd together. We want to team the ports together on the VMware side using IP Hash so what should be done on the cisco side for this to work?
Thanks...

Andres,
The Cisco Road Map for the 5010 and 5020 doesn't include extending the current total (12) FEX capabities. The 5548 and 5596 will support more (16) per 55xxk, and with the 7K will support upto 32 FEX's.
Documentation has been spotty on this subject, because the term 5k indicates that all 5000 series switches will support extended FEX's which is not the case only the 55xx will support more than 12 FEX. Maybe in the future the terminology for the 5k series should be term 5000 series and 5500 series Nexus, there are several differences and advancements between the two series.

Fabric with two Nexus-5548 and a brocade switch does not get fabric updates

We have a fabric containing two Nexus 5548 and a Brocade 5000 switch in interop mode 2. When i make changes to the zoning, the first nexus (the fabric principal) and the brocade switch see the zone changes. The second Nexus switch does not see it. There are no error messages but the change just can't be seen. What can i do to find out, what goes wrong ?

Ouch, deprecated is not the word i wanted to read
We are using 5.1(3)N1(1a) on nexus-rz1-a
and 6.0(2)N1(2) on nexus-rz2-a.
The fabric can be seen :
nexus-rz2-a# show fcs ie vsan 10
IE List for VSAN: 10
IE-WWN                   IE     Mgmt-Id Mgmt-Addr (Switch-name)
10:00:00:05:1e:90:57:27 S(Rem) 0xfffc01 10.88.133.110 (bc-san1)
20:0a:00:2a:6a:72:ba:01 S(Loc) 0xfffc1c 10.88.133.105 (nexus-rz2-a)
20:0a:54:7f:ee:7f:dc:01 S(Adj) 0xfffc0b 10.88.133.100 (nexus-rz1-a)
[Total 3 IEs in Fabric]
nexus-rz1-a# show fcs ie vsan 10
IE List for VSAN: 10
IE-WWN                   IE     Mgmt-Id Mgmt-Addr (Switch-name)
10:00:00:05:1e:90:57:27 S(Adj) 0xfffc01 10.88.133.110 (bc-san1)
20:0a:00:2a:6a:72:ba:01 S(Adj) 0xfffc1c 10.88.133.105 (nexus-rz2-a)
20:0a:54:7f:ee:7f:dc:01 S(Loc) 0xfffc0b 10.88.133.100 (nexus-rz1-a)
[Total 3 IEs in Fabric]
I try to distribute the zoneset this way:
zoneset distribute vsan 10
Zoneset distribution initiated. check zone status
nexus-rz1-a# show zone status
VSAN: 10 default-zone: deny distribute: full Interop: 2
    mode: basic merge-control: allow
    session: none
    hard-zoning: enabled broadcast: disabled
Default zone:
    qos: none broadcast: disabled ronly: unsupported
Full Zoning Database :
    DB size: 6291 bytes
    Zonesets:1 Zones:62 Aliases: 44
Active Zoning Database :
    DB size: 10243 bytes
    Name: FABRIC1 Zonesets:1 Zones:60
Status: Zoneset distribution completed at 08:06:00 UTC Dec 3 2013
nexus-rz2-a# show zone status
VSAN: 1 default-zone: deny distribute: active only Interop: default
    mode: basic merge-control: allow
    session: none
    hard-zoning: enabled broadcast: disabled
Default zone:
    qos: none broadcast: disabled ronly: unsupported
Full Zoning Database :
    DB size: 4 bytes
    Zonesets:0 Zones:0 Aliases: 0
Active Zoning Database :
    Database Not Available
Status:
VSAN: 10 default-zone: deny distribute: full Interop: 2
    mode: basic merge-control: allow
    session: none
    hard-zoning: enabled broadcast: disabled
Default zone:
    qos: none broadcast: disabled ronly: unsupported
Full Zoning Database :
    DB size: 6291 bytes
    Zonesets:1 Zones:62 Aliases: 44
Active Zoning Database :
    DB size: 10243 bytes
    Name: FABRIC1 Zonesets:1 Zones:60
Status: Activation completed at 13:03:42 UTC Dec 2 2013

FCoE using Brocade cards CNA1020 and Cisco Nexus 5548 switches

All,
I have the following configuration and problem that I am not sure how to fix:
I have three Dell R910 servers with 1TB of memory and each has two brocade 1020 CNA cards dual port. I am using distributed switches for the VM network and a second distributed switch for VMotion. I have two of the 10G ports configured in each distributed switch using IP Hash. The management network is configured using a standard switch with two 1G ports.
The Nexus configuration is we have two nexus 5548 switch connected together with a trunk. We have two VPC's configured to each ESX hosts consisting of two 10gig ports in each VPC with one port going to each switch. The VPC is configured for static LAG.
What I am seeing is that after a few hours the virtual machines will not be accessible via network anymore. So if you ping the VM it will not work and if you get on the console of the VM then ping the gateway then nothing as well but if you try to ping another virtual machine on the same host on the same VLAN then it will work so traffic is going through the ESX backplane. If I reboot the ESX host then things will work again for another few hours or so then the problem repeats.
The version of vSphere I am using is ESXi4.1
Please assist I am stuck.
Thanks...

Here is the link for Nexus and Brocade interoperability Matrix
http://www.cisco.com/en/US/docs/switches/datacenter/mds9000/interoperability/matrix/Matrix7.html#wp313498
usually this table would show those models those have been tested and verified
However I do not see Brocade 5300 listed in the table . It could be, interoperability may have not been tested by both vendors perticularly to 5300 type Model.

Nexus 5548 and Define static route to forward traffic to Catalyst 4500

Dear Experts,
Need your technical assistance for the Static routing in between Nexus 5548 and Catalyst 4500.
Further I connected both Nexus 5548 with Catalyst 4500 as individual trunk ports because there is HSRP on Catalyst 4500. So I just took 1 port from each nexus 5548, make it trunk with the Core Switch (Also make trunk from each Switch each port). Change the speed on Nexus to 1000 because other side on Catalyst 4500 line card is 1G RJ45.
*Here is the Config on Nexus 5548 to make port a Trunk:*
N5548-A/ N5548-B
Interface Ethernet1/3
Switchport mode trunk
Speed 1000
Added the static route on both nexus for Core HSRP IP: *ip route 0.0.0.0/0 10.10.150.39 (Virtual HSRP IP )*
But I could not able to ping from N5548 Console to core Switch IP of HSRP? Is there any further configuration to enable routing or ping?
Pleas suggest

Hello,
Please see attached config for both Nexus 5548. I dont have Catalyst 4500 but below is simple config what I applied:
Both Catalyst 4500
interface gig 3/48
switchport mode trunk
switchport trunk encap dot1q
On Nexus 5548 Port 1/3 is trunk
Thanks,
Jehan

DCBX Between Linux and Nexus QOS

Hi Guys
i have a server with 2 physical links only.
over this link im passing 2 vlans in trunk ( can be Portchannel to VPC or bond active passive , doesnt matter to me ) .
vlan 302 is for data
vlan 303 is for backup
server on vlan 303 is pushing traffic on that link and would take as much
bandwidth as we would give it , and would therefore cause communication issues to vlan 302 . ( congestion ) .
I would like to talk about my options here , to avoid congestions .
thought about enabling dcbx on clients ( linux ) and pfc ( priority flow
control ) to be able to negotiate qos and bw allocation according to COS IEEE 802.1p .
the idea is to have either the traffic prioritized/limit/shaped before/when its ingressing the nexus port .
the dcbx looks very cool like i said , it's kind of like what the nexus has with the CNA Card .
when it can send the linux nic through dcbx the qos parameters to apply ! ( ah ok , i see now its exactly the same )
ps linux dcbx link : http://manpages.ubuntu.com/manpages/precise/man8/dcbtool.8.html
Ingress Queuing Policies
You can associate an ingress policy map with an Ethernet interface to guarantee bandwidth for the specified traffic class or to specify a priority queue.
The ingress policy is applied in the adapter to all outgoing traffic that matches the specified CoS value.
When you configure an ingress policy for an interface, the switch sends the configuration data to the adapter. If the adapter does not support the DCBX protocol or the ingress policy type-length-value (TLV), the ingress policy configuration is ignored.
did anyone here tried it or implemented dcbx before ?
anyway id be happy to hear your wise and helpfull suggestions please
Thanks Thanks !!!

Found the answer.
Anatomy of RX packet counters on a Cisco Nexus 5548:
Nexus5548# show int eth1/29
RX
6387682660 unicast packets 1495485 multicast packets 164 broadcast packets
6389178309 input packets 589693485138 bytes
5146969 jumbo packets 0 storm suppression bytes
* "input" = unicast + multicast + broadcast (all non-jumbo)
* "jumbo" = frames sized 1519 bytes to the MTU bytes defined on the interface
* "jumbo" frames are counted separately from non-jumbo ("input")
* (unicast, multicast and broadcast "jumbo" frames appear to be rolled into the
one "jumbo" counter)
This can be seen another way with the 'count detail' command, correlated to "show int" output:
Nexus5548# show int eth1/29 count detailed
Ethernet1/29
Rx Packets: 6389178309 <-- input
Rx Unicast Packets: 6387682660 <-- unicast
Rx Multicast Packets: 1495485 <-- multicast
Rx Broadcast Packets: 164 <-- broadcast
Rx Jumbo Packets: 5146969 <-- jumbo
Rx Bytes: 589693485138
Rx Packets from 0 to 64 bytes: 1059418 <-- non-jumbo start
Rx Packets from 65 to 127 bytes: 6072007478 +
Rx Packets from 128 to 255 bytes: 11055520 +
Rx Packets from 256 to 511 bytes: 287107435 +
Rx Packets from 512 to 1023 bytes: 12801466 +
Rx Packets from 1024 to 1518 bytes: 23 <-- non-jumbo end
Rx Trunk Packets: 6387682823 <-- unicast + broadcast
fyi.

Telephony Issues on Nexus 5548

Dear Viewers,
I have Nexus 5548 devices in one of my client data centers and i have one 3750 switch to which all of these Avaya voice servers connect.
The 3750 switch was initially connected through a L2 Link to a 6509 catalyst switch and the telephony applications were working correctly.
The problem arises when i move this 3750 layer 2 link to a Nexus 5548 (OS version 5.1(3)N1 switch. All telephony calls coming from the outside (External calls) are not working as required but the internal calls work as usual.
What is odd is that when i migrate this L2 link back to the 6509 switch, all works as usual. This is just a layer 2 connection and i am wondering why this is not possible.
The vlan is accepted on all relevant trunks. I also deactivated igmp snooping on this voice vlan on the Nexus 5548 thinking it would help but in vain.
Any ideas and suggestions are welcome.
regards.
Alain

This is my radius config...... on a 5K
radius-server timeout 7
radius-server host 10.28.42.20 key 7 "Password" auth-port 1645 acct-port 1646 authentication accounting
radius-server host 10.28.42.21 key 7 "Password" auth-port 1645 acct-port 1646 authentication accounting
aaa group server radius Radius-Servers
server 10.28.42.20
server 10.28.42.21
aaa authentication login default group Radius-Servers
ip radius source-interface Vlan1
aaa authentication login default fallback error local
And it is currently working. On the radius server i also had to do this to make the users admins once logged in:
https://supportforums.cisco.com/document/137181/nexus-integration-admin-access-free-radius

Install pbr feature nexus 5548

I am in need of Policy Based Routing for a new project. At my core I have a couple of Nexus 5548s clustered together. I go into configure terminal and run the command "feature pbr" and the return is invalid. So I check the license with the command "show license usage" and I get the following output:
Feature Ins Lic Status Expiry Date Comments
Count
FCOE_NPV_PKG No - Unused -
FM_SERVER_PKG No - Unused -
ENTERPRISE_PKG Yes - Unused Never -
FC_FEATURES_PKG Yes - Unused Never -
VMFEX_FEATURE_PKG No - Unused -
ENHANCED_LAYER2_PKG No - Unused -
LAN_BASE_SERVICES_PKG Yes - In use Never -
LAN_ENTERPRISE_SERVICES_PKG Yes - Unused Never -
From here I see that the enterprise package is installed and is unused. How can I gain access to the enterprise features? I found a document here that says "Ensure that you are in the correct VDC (or use the switchto vdc command). " The switchto vdc command is also invalid. What am I missing?
Eric

I realise this is a very old post however I wanted to post here in case others are still looking for this feature. PBR is now supported in version 6.0(2)N2(1) on Nexus 5k.
RELEASE NOTES: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/notes/6_02/Nexus5500_Release_Notes_6_02.html#pgfId-472355

TACACS Nexus 5548 Authorization

I am having an issue with authorization on the Nexus 5548. Note: The tacacs configuration has and still works correctly with all non-Nexus gear.
Authentication succeeds, and initiatial authorization passes. However, all sh and config commands fail, though AAA Autho Config-Commands .... and Commands Default Group <Grp Name), are configured.
ACS generates the following error: 13025 Command failed to match a Permit rule. The Selected Command Set is DenyAllCommands. I created an AllowAll, but am unclear how to associate this with Access Policy.
Any help would be greatly appreciated.

Hello,
Hope the attached document points you into the right direction.
Regards.

Nexus 5548 L3 daughter card flapping

Hi guys,
Anyone of you here that experienced the logs below on their Nexus box:
2011 Dec 12 06:24:45 GDCNXS5K01 %BTCM-2-BTCM_LOG_ROUTER_ERR: router card in slot 3 has internal link(s) flapped: router ports down: 0x1a108000 0x1a109000 0x1a10a000 0x1a10b000 0x1a10c000 0x1a10d000 0x1a10e000 0x1a10f000
I am getting this log at least once a day. Seems like it is shutting down the SVI of the box after the said log occured. Good thing I have enable vPC and I am able to access the NXS5K through the vCP keepalive link (mgmt).
I have two Nexus 5548, but only one is experiencing the said error.
Any inputs, suggestions would be greatly appreciated.
Thanks,
Edzel

We had this same problem this past weekend, only in module 2 on a 5596.
In our case, we had rebooted our primary Nexus and found the following message immediately preceeded the BTCM error you noted:
%$ VDC-1 %$ %NOHMS-2-NOHMS_DIAG_ERROR: Module 2: Bootup diag detected major event: Forwarding ASIC failure: Ethernet2/9 Ethernet2/10 Ethernet2/11 Ethernet2/12 Ethernet2/13 Ethernet2/14 Ethernet2/15 Ethernet2/16
We replaced the module. A "show diag results module 3" would probably show you the same thing. However, I don't think the error message will show up until you reboot.
If your flapping Nexus is secondary, you probably won't notice anything major, but if it is your primary, it would probably affect your routing.

Servers connected to Nexus 5548 only getting 200 Mbps of throughput

Servers connected to NExus 5k were only getting 100 Mbps of throughput. So I disabled Flow control recieve on all the ports. After this we are getting 200 Mbps of speed. The servers are connected throuh 10 gig port. Could you guys please suggest why the throguhput is still low? Atleast we should get 1Gbps of thrpoughput.

Hi Adam,
I think we probably need a little more information to go on. Can you answer the following?
What type of servers and NICs?
What OS are you running on the servers?
What cables do you have from the servers to the switch?
Are the two servers in the same subnet or is the traffic between them routed?
If routed, is that in the Nexus 5548 or some other router?
How are you testing throughput?
Presumably you're not seeing any errors on the switch ports that the servers are connected to?
Regards

Configuring FET-10G-SR for NEXUS 5548/2248

Hey everyone-
I am a little newer with configuring switches and routers, and I have been asked to troubleshoot a FET-10G-SR in our NEXUS 5548 and NEXUS 2248. I am aware that the ports need to be configured to except FET parts, and I have tried using the "switchport mode fex-fabric" command to configure the ports, but the command will not work for some reason. Can anyone help me with configurations step by step to have these parts work properly? Any help will be greatly appreciated. Thank you!
Chris Hazell

It should normally work unless the port is not the proper type of has a configuraiton applied that's incompatible.
Can you provide the output for "show run int eth ___" and "show int eth___" (substituting your interface number for the "___") for the interface in question?
Also, if it's the first fex you are adding, you must have enabled "feature fex" globally.

EEM on Nexus 5548

Hi all,
I'm new to EEM and we are investigating using it to solve some issues that we are having, However, I can't seem to find any definitive information which tells me whether EEM is available in the nexus 5548 switches. Can anyone here help to confirm if this is the case? If not yet avalable for the 5548s, are there any indications as to when it might become available?
thanks,
Ram

Might want to try the 6.0(2)N1(2) and later code. I have it loaded on a N6004 and EEM is available there. It is of course the NX-OS flavor of EEM but it is there.
N6K-Switch# show ver | grep 'System version'
System version: 6.0(2)N1(2)
N6K-Switch# conf t
Enter configuration commands, one per line. End with CNTL/Z.
N6K-Switch(config)# event manager ?
applet Create/Modify an Event Manager Policy
environment Configure an environment variable
policy Register a script policy and activate it
N6K-Switch(config)# event manager
Mike

C220 M4 w/ VIC1225 and Nexus 5548

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