Nexus N5K-C5548UP UDLD troubles

I haven't been able bringing up links between N7k and and the new N5K (5548UP)  due to errors with UDLD.
Someone else facing same problem ?
regards
Edmund
N5K:
Software
  BIOS:      version 3.5.0
  loader:    version N/A
  kickstart: version 5.1(3)N2(1a)
  system:    version 5.1(3)N2(1a)
N7K:
Software
  BIOS:      version 3.22.0
  kickstart: version 5.1(4)
  system:    version 5.1(4)
Logs at N7K:
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-SPEED: Interface Ethernet1/2, operational speed changed to 10 Gbps
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/2, operational duplex mode changed to Full
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/2, operational Receive Flow Control state cha
nged to off
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/2, operational Transmit Flow Control state ch
anged to off
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-SPEED: Interface port-channel14, operational speed changed to 10 Gbps
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-IF_DUPLEX: Interface port-channel14, operational duplex mode changed to Full
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel14, operational Receive Flow Control state
changed to off
2012 Jun 15 14:46:58 swi-svi00A %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel14, operational Transmit Flow Control state
changed to off
2012 Jun 15 14:47:05 swi-svi00A %UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Ethernet1/2, empty echo detected
2012 Jun 15 14:47:16 swi-svi00A %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet1/2: Ethernet1/2 is suspended
2012 Jun 15 14:47:16 swi-svi00A %ETHPORT-5-IF_TRUNK_UP: Interface Ethernet1/2, vlan 1,60,100,358,370,380,500-501,505,700-703,710
-713,720-723,730-735,759-762,764-765,767,770,775-778,782-783,787-788,794-796 up
2012 Jun 15 14:47:16 swi-svi00A %ETHPORT-5-IF_TRUNK_UP: Interface Ethernet1/2, vlan 999-1000,1501,2029-2030 up
2012 Jun 15 14:47:16 swi-svi00A %ETHPORT-2-IF_DOWN_ERROR_DISABLED: Interface Ethernet1/2 is down (Error disabled. Reason:UDLD em
pty echo)
2012 Jun 15 14:52:16 swi-svi00A %ETHPORT-2-IF_DOWN_ERROR_DISABLED: Interface Ethernet1/2 is down (Error disabled. Reason:UDLD em
pty echo)
==
swi-svi00A# sh udld ethernet 1/2
Interface Ethernet1/2
Port enable administrative configuration setting: enabled-aggressive
Port enable operational state: enabled-aggressive
Current bidirectional state: unknown
Current operational state:  disable-port - Multiple neighbor not detected
Message interval: 7
Timeout interval: 5
        Last pkt send on: 719482, Jun 15 14:47:05 2012
                Probe pkt send on: 401784, Jun 15 14:46:59 2012
                Echo  pkt send on: 461880, Jun 15 14:47:05 2012
                Flush pkt send on: 719482, Jun 15 14:47:05 2012
        Last pkt recv on: 719134, Jun 15 14:47:05 2012
                Probe pkt recv on: 719134, Jun 15 14:47:05 2012
                Echo  pkt recv on: None.
                Flush pkt recv on: None.
        Deep pkt inspections done: None.
        Mismatched if index found: None.
        Deep pkt inspection drops: None.
(Member of port-channel14)

You are probably running into bug-id CSCtz00790. (see below)
I had the same issue with UDLD no echo reply over SFP+ cables. The bug is Fixed-In 5.1(3)N2(1a)
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtz00790

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      ip dhcp relay address 10.144.40.40
    interface port-channel1
      description ** Trunk Link to Switch A g1/0/23-24 **
      switchport mode trunk
      switchport trunk allowed vlan 1,30,40,100-101,122
      speed 1000
    interface Ethernet1/1
      description ** Trunk Link to Switch A g1/0/23**
      switchport mode trunk
      switchport trunk allowed vlan 1,30,40,100-101,12
      speed 1000
      channel-group 1 mode active
    interface Ethernet1/2
      description ** Trunk Link to Switch A g1/0/24**
      switchport mode trunk
      switchport trunk allowed vlan 1,30,40,100-101,122
      speed 1000
      channel-group 1 mode active
    interface Ethernet1/3
      description **Connected to server B**
      switchport access vlan 40
      speed 1000
    interface mgmt0
      description connection to Switch A g2/0/20
      no ip redirects
      ip address 172.16.0.2/25
    I get a successful response from Server A when I ping the N5K-C5548UP Switch (VLAN 40 interface (10.144.40.3) .But if I try to ping from Server A to Server B or vice-versa the ping fails. From N5K-C5548UP I can ping successful either Server A or Server B. What am I doing wrong here? Is there any additional configuration that I need to add on the Nexus Switch? Please Help. Thank you.

    no, no secret aukhadiev
    I made a mistake without realising and the interface e1/3 was showing "Interface Ethernet1/3 is down (Inactive)". After spending sometime trying to figure out what was wrong with that interface or switch, it turned out to be that i forgot to add the vlan 40. Now the config looks like this:
    N5K-C5548UP Switch
    feature interface-vlan
    feature lacp
    feature dhcp
    feature lldp
    vrf context management
      ip route 0.0.0.0/0 172.16.0.1
    vlan 1
    vlan 40
    vlan 100
    service dhcp
    ip dhcp relay
    interface Vlan1
      no shutdown
    interface Vlan40
      description ** Server VLAN **
      no shutdown
      ip address 10.144.40.3/25
      ip dhcp relay address 10.144.40.39
      ip dhcp relay address 10.144.40.40
    interface port-channel1
      description ** Trunk Link to Switch A g1/0/23-24 **
      switchport mode trunk
      switchport trunk allowed vlan 1,30,40,100-101,122
      speed 1000
    interface Ethernet1/1
      description ** Trunk Link to Switch A g1/0/23**
      switchport mode trunk
      switchport trunk allowed vlan 1,30,40,100-101,12
      speed 1000
      channel-group 1 mode active
    interface Ethernet1/2
      description ** Trunk Link to Switch A g1/0/24**
      switchport mode trunk
      switchport trunk allowed vlan 1,30,40,100-101,122
      speed 1000
      channel-group 1 mode active
    interface Ethernet1/3
      description **Connected to server B**
      switchport access vlan 40
      speed 1000
    interface mgmt0
      description connection to Switch A g2/0/20
      no ip redirects
      ip address 172.16.0.2/25
    Thank you,
    JN

  • Nexus 5548UP and GLC-LH-SM showing sfpinvali

    Hi gurus, have just received a 5548UP and when a 1GB GLC-LH-SM is inserted into the system it shows as being invalid.
    Eth0/1       --                 sfpInvali 1         auto  10G     1/10g
    4 different SFPs have been tried in numerous interfaces on the system.  I have also upgraded the software to 5.0(2). 
    And I have tried setting the speed to 1GB on the interface.
    Any ideas on what simple configuration task I have missed?
    LP

    Hi,
    I've the same issue with GLC-T 1Gbps SFP tranceiver and NX-5548UP with L3 Daughter Card.
    sh int e1/32 status
    Port          Name               Status    Vlan      Duplex  Speed   Type
    Eth1/32       VLAN99             notconnec 99        full    1000    SFP-1000BAS
    The cable is connected and in the other device (switch 2960x) the ethernet interface is UP
    My configuration :
    NX-OS : version 5.2(1)N1(4)
    interface Ethernet1/32
      description VLAN99
      switchport access vlan 99
      speed 1000
     sh mod
    Mod Ports Module-Type                       Model                  Status
    1   32    O2 32X10GE/Modular Universal Plat N5K-C5548UP-SUP        active *
    3   0     O2 Daughter Card with L3 ASIC     N55-D160L3-V2          ok
    Tranceiver info :
    Ethernet1/32
        transceiver is present
        type is SFP-1000BASE-T
        name is CISCO-METHODE   
        part number is SP7041_Rev_E    
        revision is E   
        serial number is 00000MTC163405CF
        nominal bitrate is 1300 MBit/sec
        Link length supported for copper is 100 m
        cisco id is --
        cisco extended id number is 4
    DOM is not supported
    Interface capa :
    Ethernet1/32
      Model:                 N5K-C5548UP-SUP
      Type (SFP capable):    10Gbase-(unknown)
      Speed:                 1000,10000
      Duplex:                full
      Trunk encap. type:     802.1Q
      Channel:               yes
      Broadcast suppression: no
      Flowcontrol:           rx-(off/on),tx-(off/on)
      Rate mode:             none
      QOS scheduling:        rx-(6q1t),tx-(1p6q0t)
      CoS rewrite:           no
      ToS rewrite:           no
      SPAN:                  yes
      UDLD:                  yes
      Link Debounce:         yes
      Link Debounce Time:    yes
      MDIX:                  no
      Pvlan Trunk capable:   yes
      TDR capable:           no
      FabricPath capable:    yes
      Port mode:             Switched
      FEX Fabric:            yes
    Any idea ?
    Regards,
    Julien.

  • Nexus 5548up OS 5.1(3)N2(1) with L3 Card

    I find some inconsistent behavior in the above platform. After a clean reboot, the interfaces  are up, but cdp neighbors are not showing. The switch has no  configuration (after reboot with no startup-config). To make things worse sometimes it will  boot properly and show cdp neighbots, other times it won't. When that happens all the port-channel  and other configurations don't work as well. The switch has L3 card. Any ideas?
    I have tried installing NX-OS 5.2 and then moving back to 5.1. I want to stay at 5.1 That didn't solve anything.
    5k1# show cdp neighbors
    Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge
                      S - Switch, H - Host, I - IGMP, r - Repeater,
                      V - VoIP-Phone, D - Remotely-Managed-Device,
                      s - Supports-STP-Dispute
    Device-ID             Local Intrfce Hldtme Capability  Platform Port ID
    Switch                 mgmt0         158    S I       WS-C2970G-24T Gig0/22
    ===============================================================
    5k1# show interface e1/14-15 brief
    Ethernet      VLAN    Type Mode   Status  Reason Speed     Por
    t
    Interface Ch
    Eth1/14       1       eth  access up none                        10G(D) --
    Eth1/15       1       eth  access up none                        10G(D) --
    ====================================================================
    5k1# show module
    Mod Ports  Module-Type                      Model                  Status
    1    32     O2 32X10GE/Modular Universal Pla N5K-C5548UP-SUP        active *
    3    0      O2 Daughter Card with L3 ASIC    N55-D160L3             ok
    Mod  Sw              Hw      World-Wide-Name(s) (WWN)
    1    5.1(3)N2(1)     1.0     --
    3    5.1(3)N2(1)     1.0     --
    Mod  MAC-Address(es)                         Serial-Num
    1    547f.eea3.fe28 to 547f.eea3.fe47         FOC16193NET
    3    0000.0000.0000 to 0000.0000.000f         FOC16125D4B
    =============================================================================
    5k1# show version
    Cisco Nexus Operating System (NX-OS) Software
    TAC support: http://www.cisco.com/tac
    Documents: http://www.cisco.com/en/US/products/ps9372/tsd_products_support_serie
    s_home.html
    Copyright (c) 2002-2012, Cisco Systems, Inc. All rights reserved.
    The copyrights to certain works contained herein are owned by
    other third parties and are used and distributed under license.
    Some parts of this software are covered under the GNU Public
    License. A copy of the license is available at
    http://www.gnu.org/licenses/gpl.html.
    Software
      BIOS:      version 3.6.0
      loader:    version N/A
      kickstart: version 5.1(3)N2(1)
      system:    version 5.1(3)N2(1)

    I have tested this issue on another 5548UP with L3 running the same NX-OS version and get the same problem. Show CDP from the switch is not discovering devices, but the neightbors can see the 5K in question. Reboot sometimes will fix it, but not always. I suspect a problem with the software since that doesn't happen in NX-OS 5.2. The one I am using is
    Software
      BIOS:      version 3.6.0
      loader:    version N/A
      kickstart: version 5.1(3)N2(1)
      system:    version 5.1(3)N2(1)

  • FI 6248 Nexus 5548 Port-channel problem

                       Hi all
    I have a strange behavior between 2 FI and 2 nexus 5k configured as VPC , From a remote location and from my desktop I can ping odd ip and not even , from an other desktop in the same LAN the reverse, for both the tracert are good.
    The only solution is to shutdown  ports 1/1-2 on nexus A or FI A and in that case both desktops can ping both IP.
    All seems OK, no log error , no error on interface , I give below some commands
    What thing to know is that the nexus b has a L3 card , not the Nexus A , In fact I am waiting for a spare L3 daughter card.
    On both NexusI have such configuration and status
    interface port-channel201
      description ucs-Fab-a
      switchport mode trunk
      switchport trunk native vlan 999
      spanning-tree port type edge trunk
      vpc 201
    UCSM-PARIS-A(SSI153000ST)
                           Eth1/1        129    S I s     UCS-FI-6248UP Eth1/11
    UCSM-PARIS-A(SSI153000ST)
                           Eth1/2        174    S I s     UCS-FI-6248UP Eth1/12
    sh port-channel summary
    201   Po201(SU)   Eth      LACP      Eth1/1(P)    Eth1/2(P)
    sh mac address-table dynamic | i 1010
    * 1010     0025.b5c9.481e    dynamic   0          F    F  Po201
    * 1010     0025.b5c9.481f    dynamic   10         F    F  Po201
    sh ip arp
    10.203.136.21   00:01:05  0025.b5c9.481f  Vlan1010
    10.203.136.22   00:12:43  0025.b5c9.481e  Vlan1010
    On both FI A have such configuration and status
    terface port-channel201
      description U: Uplink
      switchport mode trunk
      pinning border
      switchport trunk native vlan 999
      switchport trunk allowed vlan 1,104,999,1010-1013,1020-1021,1500-1502,1510-151
    2,1550-1552,1560-1561,1600-1602,1610-1619
      speed 10000
    sh port-channel summary
    201   Po201(SU)   Eth      LACP      Eth1/9(P)    Eth1/10(P)   Eth1/11(P)
                                         Eth1/12(P)
    sh mac address-table dynamic
    * 1010     0025.b5c9.481e    dynamic   0          F    F  Po201
    * 1010     0025.b5c9.481f    dynamic   0          F    F  Po201
    sh cdp nei
    E2RTR001(SSI1608085E)  Eth1/9          120     S I s       N5K-C5548UP   Eth1/1
    E2RTR001(SSI1608085E)  Eth1/10         120     S I s       N5K-C5548UP   Eth1/2
    E2RTR002(SSI16080F17)  Eth1/11         151     R S I s     N5K-C5548UP   Eth1/1
    E2RTR002(SSI16080F17)  Eth1/12         136     R S I s     N5K-C5548UP   Eth1/2
    Any ideas, A configuration I forgot on FI ?
    Regards .

    In fact in the probem I described the path is Esx -> FAB A - > N5K-A (for layer 2) -> N5K-B (for L3) -> routing to the LAN
    And what you told me is that such configuration is not supported with VPC configuration , so I need to wait to receive the L3 card for the N5k-A. and check later if I have the same problem.
    thanks

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