Effect of loss of link IOM UCS on CF in Port-channel mode

Similar Questions

• UCS - san-port-channel on vpc

  Hello

  I hope someone can help with this,

  I have a Setup with 2 Nexus of 5548 connected via a link of vpc peers and a keepalive, these two nexus switch have a link of standard VPC to a 6500 upstream. It works fine,

  Then, there are several native FC connections of the 5548 to of 6248. I know that there is the possibility to configure the channel port of CF on the UCS 2.0 but it is possible to link 5548 CF interfaces in a port channel san through a vpc between the nexus of 5548.

  so, for example, I can port-channel which follows through a vpc or is a channel of port san, limited to the same nexus only switch ports.

  Fc1/31 & fc1/32 fabric sent to-> NX5K - 1 Port fc1/31 & NX5K - 2 Port fc1/32 (san port-channel 10 on a VPC)

  Fabric B fc1/31 & fc1/32 passed to-> NX5K - 1 Port fc1/32 & NXFK - 2 Port fc1/31 (san port-channel 11 on a VPC)

  Thank you

  Ray.

  It is not possible. VPC is the only Layer 2 ethernet port channel. Port channel San cannot be built through vpc

  Sent by Cisco Support technique iPhone App

• Setting port channel between UCS - FI and MDS 9124 (Mode F)

  Dear team,

  We tried to create the channel of port between UCS FI and MDS 9124

  But the port channel do not take action in mode F on MDS 9124

  FI is in host FC end Mode

  We have allowed FC uplink on FI trunking

  We have activated NPIV on MDS

  We have activated the MDS trunk

  FI and MDS in default VSAN

  To check that we have changed the way FI FC channels mode and switch port became active, but in E mode

  When we enabled CF trunking of uplink on the port mode FI channels and FC Switching became active in mode TE

  but in both cases above, showflogi database shows WWPN of SAN alone does not have the any fi.

  How to achieve this?

  Have read that no need to change the mode switching mode of CF swicthing and keep FC Endhost way

  SO how to channel ports with mode F MDS and FI (Display Mode as NProxy)

  What is it has nothing to do with the MDS NX - OS version? (https://supportforums.cisco.com/thread/2179129)

  If yes how to put as license for ports came with the camera and we don't have any CAP/PAK or license file as she came

  with license

  Also, we saw 2 files available for download (m9100-s2ek9-kickstart - mz.5.2.8 .bin and m9100-s2ek9 - mz.5.2.8 .bin b b) to use

  Thanks and greetings

  Jose

  Hi Jo Bo.

  What version of the software if your MDS race?

  On your UCS do connect nxos and show ficelleStringString ficelleT inteface and find the mac address.

  It is possible that you could be hitting the bug below. If this is the case, you may need to update the firmware on your MDS.

  Add MAC YES '002a6a', '8c604f', '00defb' for 5 k/UCS-FI

  http://Tools.Cisco.com/support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId= CSCty04686

  Symptom:

  Link change cannot connect any other Nexus or other Cisco Switch in mode VAN with a port channel F.   Question can be viewed in older versions of 5.1

  5.1.3.N1.1a

  but not later

  5.1.3.N2.1c

  Release. Question is also found in

  5.2 (1) N1 (1)

  and

  6.0 (2) N1 (1)

  and later versions.

  Conditions:

  Nexus configured for the link SAN PortChannels or NPIV Nexus mode connected to the UCS via regular F port channel where UCS VAN VAN edge mode switch: YES switch manufactured FI or another Cisco UCS Port WWN: xx:xx:00:2 has: 6a: xx:xx:xx or xx:xx:8 c: 60:4f:xx:xx:xx

  Workaround solution:

  Turn-off on Nexus 5 k TF-port question link mode does not happen with standard F-PORT SAN to remove Portchannel config

  Other Description of the problem:

  To check question collect please see the flogi-event history internal errors whenever the port is attempted OLS, AMENDMENTS, PBA counters will increment. This can be determined via the following output, view port internal info to see all the internal-historic port of error events

• Loss of links FI L1/L2

  Hello

  One of my customers wonder about linking the FI 2 L1/L2 loss.

  In my mind, this case should not be here, why we have 2 links but I don't know what happened exactly in this case... the 2 FI become master of the UCS cluster...

  any idea or already Tester?

  THX

  The L1/L2 are by data management engine (DME) to synchronize the config only - there is no path of data on these links.

  In case these links both go down, there is a rear mechanism built into the system to prevent split brain.  Each frame has a SEEPROM (flash).  Within the SEEPROM, there is a shared area each FI can read & write to and two subzones; an inmate by each FI in which only FI can write to.  The subareas are used to store information about the config DB fails to a bank owner in the same, changes are made and it is reintroduced.  You will avoid 'stale' config overwrite any changes made during a FI was disconnected.

  If there is a failure in the cluster llink (L1/L2), IF read and write small counters in the shared area.  This serves as a secondary heartbeat to warn the other FI is always active.  Meanwhile, the cluster starts in a State of 'Failed-Link' and prevents any election primary/secondary.  Everything else as-if - primary primary, secondary rest is secondary.

  Kind regards

  Robert

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• IOM pinning via the port-channel

  Hello

  It seems to me that, with UCS manager 1.4 and higher, it is possible to setup the pinning of the IOM through the port-1-channel.

  I couldn't find any configuration guide for this kind of configuration.

  Can you help me or inform me on this subject?

  Thanks in advance.

  Nicolas.

  Hi Nicolas,.

  + The feature is only available with the 2.0 and 2.0 material, i.e. a combination of FI and IOM 22xx 62xx.

  the option is available on the same page as the page of chassis discovery strategies.

  -> Hardware tab select hardware-> policies-> global Polocies-> preferences to group link (right)

  . / Afonso

• UCS FC Port Channel questions

  Hi all

  I tried to connect the FI FC port to the Nexus 5 K. YEW has been configured in host end (VAN) mode, while the N5K has been configured as NPIV switch (NPV core).

  After trying many things, the SAN PortChannel link on both FI and N5K cannot grew up, stuck in the initializing state.

  If the N5K and FI was not grouped in PortChannel, connection set successfully.

  In addition, I found and who issues the FI when running in NPV mode, the trunk cannot be configured as trunk mode on (if configured, so the connection will get stuck in the initialization of State too).

  Attached are the files of configuration on FI and N5K

  Also, I tried to connect the FI to MDS 9222I and had the same problems that connect to N5K.

  Can anyone help?

  Comparation while I connect the Nexus 5 K as NPV switch and MDS 9211i as mode NPIV, the PortChannel SAN and circuits (N5K as TNP) and MDS TF was successfully raise.

  Thank you

  GOFI

  Gofi Hello,

  As interface comes from the individual links and N5K running version 5.1 (3) N1 (1), he may run into the following faults

  http://Tools.Cisco.com/support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId= CSCty04686

  If so, N5K software must be upgraded to a version that has the fix for this flaw.

  HTH

  Padma

• UCS to SAN Brocade FC Switch mode

  Is it possible to connect a network SAN FC Brocade for interconnections of fabric once to have them put in place mode Switch CF?

  Thank you

  Hello Dani

  No! We do not support interop modes!

  the only solution is running FI in NPV mode and Brocade in Access Gateway (NPIV)

  Why is this not possible? We have many installations of UCS, connection to a cloth of Brocade with NPV mode

  Walter.

• Why the pdf links don't work for Muse in preview mode?

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• PCIe-6259 anallog effect of clipping (perhaps overvolting) on other analogously in the input channels?

  Curious to know if the cutting/possible ovevolting on one of the analog channels would affect the performance of other similar channels. I have two systems, one where signals don't clip and the other channels are still operable. The other has some problems of cutting (which fade eventually btw) on some of the ins anlog. One with the cutting on other channels are apparently unusable while those who did no cropping entry seems to be well.

  I seem to be affected by a situation in which hanging on an analog channel makes so that other analog channels do not work.

  Curious to know if I can see what is expected?

  Anyone have an overview here?

  This is how it is supposed to work?

  We do not guarantee that all channels will work normally when you're in a State of fault/over-voltage.

  Since it is a MUX architecture'ed, that the channels are analyzed in order in the amplifier of shared instrumentation and ADC.  If the instrumentation amplifier is on track for channel 0 (for example), it will take some time to recover from this error after the next channel is enabled in.  This can cause a number of incorrect following channels (possibly indicated as being on track).

  Of course, we do not recommend to use this device in an error condition. When you said "analog channels does not" what do you mean?  The data on track?

  Some things that might help:

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  -Skip the chain incriminated in the scan list

  -Make sure that the offending channel is set to the widest range of voltage (+/-10 v)

• What is the most effective way to change a demo, training and evaluation of the recording mode?

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  N ° you must edit each output separately.

• 10G between adpater and blades for VIC1240 + 1280

  As my other discussion suggested, I VIC 1240 and 1280 cards installed on the B200 M3 blade.

  UCS automatically creates 4x20G port-channel between the adapter and the blades. We have therefore 80 G total n/b to the INSTITUTION of the blade. Side has 40 G and 40 B side

  I have a delicate question: if I could change the 4 ports-channels to 8 individual links while I have granular control to 10G does level not 20G

  Can anyone help to answer the question?

  No, these are internal pc, automatically. Be aware that a single stream is limited to 10G, more if you have not configured a pc between the IOM and fi, you are limited by this public static pinning (IOM - FI) to 10G anyway. PC between IOM and fi requires the second generation material, for example. 62xx and 22xx.

• ESXi 5.5 nic teaming/LAG with trunking does not but it works on ESX 4.0.  Both are on the same switch. What gives?

  I have two hosts (vhost1 = ESX 4.0, vhost2 = 5.5 ESX) both are configured for the Group and both connected to a switch of 1544 Adtran L3 (named sw01).  vhost1 has been in production for several years with the config below and has been solid as a rock.  I'm trying to reproduce the installation of grouping/collage on vhost2 and it does not work when are associated but will work when you are using a single NIC (with or without aggregation).

  To be more specific about what does not work, two virtual servers have "Network server" (vlan 8) defined as a group of ports. Both physical and virtual servers on the same vlan cannot ping or resolve queries arp for virtual machines on vhost2.    Everything that is sent from a different subnet can connect to the virtual machines on each virtual server.

  So the question is this: why not ESX 5.5 works as ESX 4.0 when the configs are also near identical, as I can make them and they are connected to the same switch?

  Thanks for any input you can provide!

  S

  This is the configuration for vhost1

  switch 1 (sw01)

  SW01 #sho run int port 3

  Building configuration...

  !

  !

  interface port-channel 3

  Description LAG for vhost1

  no downtime

  switchport mode trunk

  switchport trunk allowed vlan 1.8

  !

  end

  SW01 #sho run int 0/23 concert

  Building configuration...

  !

  !

  0/23 gigabit-switchport interface

  Vhost1 vmnic2 vswitch1 description

  no downtime

  channel-group mode 3 on

  !

  end

  SW01 #sho run int concert 0/24

  Building configuration...

  !

  !

  0/24 gigabit-switchport interface

  Vhost1 vmnic1 vswitch1 description

  no downtime

  channel-group mode 3 on

  !

  end

  vhost1

  [root@vhost1 ~] # esxcfg - NICS - l

  Name PCI Driver link speed Duplex MAC address MTU Description

  vmnic0 03:04.00 tg3 up to 1000Mbps Full 78:e7:d1:5f:01:f4 1500 Broadcom Corporation NC326i PCIe Dual Port Gigabit Server Adapter

  vmnic1 03:04.01 tg3 up to 1000Mbps Full 78:e7:d1:5f:01:f5 1500 Broadcom Corporation NC326i PCIe Dual Port Gigabit Server Adapter

  [root@vhost1 ~] # esxcfg - vmknic - l

  Interface Port Group/DVPort IP IP family address Netmask Broadcast MAC address MTU TSO MSS active Type

  vmk1 VMkernel - Server NetIPv4 10.1.8.31 255.255.255.0 10.1.8.255 00:50:56:78:9e:7e 1500 65535 true STATIC

  VMkernel - SAN Net IPv4 10.1.252.20 vmk0 255.255.255.0 10.1.252.255 00:50:56:7 c: d8:7e 9000 65535 true STATIC

  
  

  [root@vhost1 ~] # esxcfg - vswif - l

  Port Group/DVPort IP IP family name address Netmask Broadcast Enabled TYPE

  Service vswif1 - NetIPv4 management 10.1.1.12 console 255.255.255.0 10.1.1.255 true STATIC

  
  [root@vhost1 ~] # esxcfg - vswitch - l

  Switch name Num used Ports configured Ports MTU rising ports

  32 4 32 1500 vSwitch0

  Name PortGroup VLAN ID used rising Ports

  0 3 VM network

  Switch name Num used Ports configured Ports MTU rising ports

  vSwitch1 64 12 64 1500 vmnic1, vmnic0

  Name PortGroup VLAN ID used rising Ports

  Server network 8 7 vmnic1, vmnic0

  Console - management service vmnic1 Net0 1, vmnic0

  VMkernel - server 1 vmnic1 Net8, vmnic0

  On the Load Balancing vSwitch it Hash IP value.

  This is the configuration for vhost2

  switch 1

  SW01 #sho run int 4 port

  Building configuration...

  !

  !

  interface port-channel 4

  LAG description for vhost2

  no downtime

  switchport mode trunk

  switchport trunk allowed vlan 1.8

  !

  end

  
  

  SW01 #sho run int concert 0/17

  Building configuration...

  !

  !

  0/17 gigabit-switchport interface

  Description vhost2

  no downtime

  channel-group mode 4 on
  

  !

  end

  
  

  SW01 #sho run int concert 0/18

  Building configuration...

  !

  !

  interface gigabit-switchport 0/18

  Description vhost2

  no downtime

  channel-group mode 4 on

  !

  end

  vhost2

  ~ # esxcfg - NICS - l

  Name PCI Driver link speed Duplex MAC address MTU Description

  vmnic0 e1000e up to 1000Mbps Full 00:25:90:e7:0e:9 0000:08:00.00 1500 c Intel Corporation 82574 L Gigabit Network Connection

  vmnic1 0000:09:00.00 e1000e up to 1000Mbps Full 00:25:90:e7:0e:9 d 1500 Intel Corporation 82574 L Gigabit Network Connection

  ~ # esxcfg - vmknic - l

  Interface Port Group/DVPort IP IP family address Netmask Broadcast MAC address MTU TSO MSS active Type

  Management 10.1.1.15 IPv4 network vmk0 255.255.255.0 10.1.1.255 c 1500 65535 real STATIC 00:25:90:e7:0e:9

  ~ # esxcfg - road - l

  VMkernel itineraries:

  Interface of network gateway subnet mask

  10.1.1.0 255.255.255.0 subnet local vmk0

  by default 0.0.0.0 10.1.1.1 vmk0

  
  

  ~ # esxcfg - road - n

  Expiration type neighbor Interface MAC address

  10.1.1.1 00:a0:c8:8 has: ff: 3 b vmk0 19m13s unknown

  ~ # esxcfg - vswitch - l

  Switch name Num used Ports configured Ports MTU rising ports

  vSwitch0 4352 7 128 1500 vmnic0, vmnic1

  Name PortGroup VLAN ID used rising Ports

  Server network 8 1 vmnic0, vmnic1

  Management network 0 1 vmnic0, vmnic1

  On the Load Balancing vSwitch it Hash IP value.

  Hello

  Do you share the vmnic for ESXi management and network of the VM?

  Try to follow the steps in this KB: VMware KB: NICs using EtherChannel grouping allows intermittent network connectivity in ESXi

  Trying to team adapters using EtherChannel, network connectivity is disrupted on an ESXi host. This problem occurs because grouping NIC properties will not propagate to the network management portgroup in ESXi.

  When you configure the ESXi host for grouping of NETWORK cards in attributing to the road based on ip hashload balancing, this configuration is not propagated to the portgroup management network.

  Workaround

  Note: to reduce the possibility network loss please change the route based on the hash of IP using this method of balancing load vSwitch

  1. Close all ports in the physical switch team leaving a single port as active.
  2. Change the Route based on ip hash vSwitch and load balancing management Portgroup.
  3. Set up the physical switch port channel.
  4. Activate the physical switch ports.

  Notes: Using this method will avoid a loss of connection when you switch to a port channel. Also make sure that under the properties for vmk portgroup # used for network management you tick the box "Enabled".

• IOS NXOS VPC PORT channel

  Hello

  I have a pair of Nexus 5 K in an area of the VPC and few 2960's as members of the VPC, with a port to the domain channel.

  Topology is:

  5K 1 and 5 K 2 in the area of the VPC

  VPC 5 1 K and 5 K 2 to 2960

  2960 a gi0/1 and gi0/2 in 1 port channel

  Gi0/1 5 k 1, gi0/2 5 k 2

  I know what I'm going to ask can be completely against the purpose of the VPC, but I'm looking for a way to promote gi0/1 for traffic, rather than balancing on gi0/1 and gi0/2. The reaon for this is I want to take advantage of the absence of loop that provides mail ORDER, but would also like to have a link primary and secondary, as the majority of traffic should in fact go through 5K 1, rather than 5 K 2.

  Any suggestion is welcome.

  Thanks in advance

  Anthony

  Hi Anthony,.

  The Cisco NX - OS software load balance traffic across all operational interfaces in a portchannel by chopping the addresses in a numeric value that selects one of the links in the channel. Port channels provides default load balancing. It uses IP addresses, MAC addresses or layer port numbers 4 to select the port-channel-balancing link of the load. The port-channel load balancing uses the source or destination or port addresses, or both the source and ports or destination addresses.

  You can configure the mode of load balancing to be applied to all port channels that are configured on all of the device, or the specified modules. Each module configuration takes precedence over the configuration of load balancing for the entire device. You can configure a single mode of load balancing for the whole device, a different mode for specified

  modules and another mode of the other specified modules. You can not configure the port-channel load balancing method.

  You can configure the type of balancing algorithm used. You can choose the balancing algorithm that determines which Member port to select for the evacuation traffic by looking at the fields of the frame.

  Note: The mode of load balancing by default for layer 3 interfaces is the IP source and destination address, and the mode of the load balancing by default for non - IP interfaces is the source MAC address and destination.

  The configuration mode, you can try different method of load-balancing,

  port-channel - the balance of the load {dest-ip-port | dest-ip-port-vlan |}

  destination-ip-vlan. destination-mac | destination-port | source-dest-ip-port | source-dest-ip-port-vlan. source-dest-ip-vlan. source-dest-mac | source-dest-port | Source-ip-port | Source-ip-port-vlan. Source-ip-vlan. source-mac | source-port} [number of the module]

  To sum up: I can't tell which port would be chosen, it depends purely on image type you send with the combination method of load balancing.

  After you change you know also from the command which link takes the traffic.

  NEXUS2-SPAN # show the port-channel - the balance of the charge-transfer port-channel 71 src - ip 1.1.1.1 route dst - ip 2.2.2.2 VLANs 51 2 interface module

  Module 2: Missing params will be substituted by 0.

  Load balancing algorithm: src - dst ip-l4port

  RBH: port id out 0xb0: Ethernet8/8

  We can try also to rework the same NLB on the 2960 also. Is it purely depends on the algorithm of load balancing. Below is for 2960 balancing tweaking,

  http://www.Cisco.com/en/us/docs/switches/LAN/catalyst2960/software/release/12.2_53_se/configuration/guide/swethchl.html

  Even after doing this that I wouldn't say 100 percent, he would choose a link.

  I hope this helps!

  Thank you

  Richard.

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