3650 LACP etherchannel suspended

Similar Questions

• LACP or PAGP aggregation of bandwidth

  Is someone can you please tell me if I got a PAGP or LACP etherchannel between two ports together on a switch and two ports together on another switch if I'd get 2gig max flow.

  Hello!

  To do this, it increments your available bandwidth, BUT this only applies to L2 Etherchannels.

  Also, take in mind load balancing methods because if not properly implemented the traffic will not be balanced also, or one of the links you will get much more responsible.

  Here is a document explaining that the balancing algorithms in case you want to dig deeper on this subject:

  http://www.Cisco.com/c/en/us/support/docs/LAN-switching/EtherChannel/120...

  Let me know if you have any questions!

  I hope this can help, greetings!

  JC

• vSphere 5 and iSCSI LACP

  Hello - this is my first post here so please, be gentle.

  I tried to find information about configuring LACP in vSphere, ESXi 5. Let me give a brief overview of my environment and the objectives that we strive to achieve. We use NICs 1 GB on 6710 VDX Brocade fabric switches.

  We have a small cluster of vSphere, ESXi 5 standard edition. We have 6 physical network interface cards in each host - 2 are associated to the network of the VM, 2 are associated for vMotion/management, and the last two are vmKernal ports one two separate subnets connected using MPIO to our Compellent SAN iSCSI. This has been our test bench and we use the nic teaming in ESXi 5 running "Route based on the originating virtual port ID" with no specific switch-side config. We have other servers only using LACP 802.3ad configured on the host and the switch that work very well - gives us a better failure protection that we use two switches and plug in a link in each switch. We would like to do the same with ESXi hosts.

  Our new project is coming to virtualize a larger number of systems we currently serve. We want to do is expand our use VM to include a large (30 - big for us) number of SQL servers. The basic functions of these systems require a decent amount of e/s SAN backend. The physical servers we would be virtualize emballerions a density close to 4 / 1 or up to 8:1 with this conversion. We are concerned that having just the 2 iSCSI nic MPIO paths will not be sufficient to support the increased load of I/O.

  We would like to know if you are using LACP on the two subnet iSCSI connections and join 2 + NIC for each connection is viable in ESXi 5 and with iSCSI technology and what configuration parameters that we set up to do this.

  In addition, this project would be to use Enterprise Edition VMWare vSphere 5 - DRS or distributed switching introduced other complications or benfits for this configuration?

  Thanks for any helpful input or direction of already published documents.

  Scott

  I find using LACP / etherchannel is rarely effective or useful in VMware environments.

  For iSCSI storage, my standard configuration is to use 2 uplinks with binding of iSCSI ports. Here are the screenshots of the configuration.

  

  

  

• Configuration port-channel, DTP, disabling

  Hi all

  I had a problem on the day where I wanted to attach a pile of 3750 x 2 to the network, the core is a 6500.

  There was a link configured for the core of the 3750 he had the configuration necessary trunk with BPDUFILTER active

  at the end of the base he had the standard configuration of trunk. The link is on the rise and work.

  Went to get a second battery for the heart link. Decided that DTC must be turned off at the end of the SWITCHPORT NONEGOTIATE battery

  the normal chest on the port configuration on the port channel port joined. Then suddenly the newspapers went crazy and right now, I need

  Spanning tree went crazy and started blocking areas of the network to avoid loops. There is STDS running in the network

  I had similar errors to this % SW_MATM-4-MACFLAP_NOTIF

  I pulled the battery cables and all services affected later came back.

  I know that enable the BPDUFILTER option stops at the port to participate in STP.

  Please could someone confirm due to the incompatibility of the config on these ports it has this problem or is there something I missed here

  Thank you mnay

  The BPDU filter is the root of the problem.

  You can't have two active rising running without creating a loop, unless they run into a PaGP/LACP-EtherChannel configuration. By having one or two links running with a filter BPDU, spanning Protocol tree on the 6500 didn't know that a link had to be in a deadlock state and he was panicked when MAC addresses on the stack of 3750 began to stir between interfaces.

  3750 cross media - stack EtherChannel using LACP, so if you want the resilience of two connections without having to factor in the covering tree branches, it is a good idea to combine the two in a group of channels and have both the 3750 and 6500 treat them as a single logical connection.

  If you want to keep them separated, you will need to remove the filters BPDU these ports and leave spanning tree figure things out properly.

• failover network topology

  Hi all!

  We want to improve our server network, make more failover. We have two 3750 switch and multiple servers.

  

  So, what are the best practices failover network?

  I looked in the direction of HSRP and LACP.

  case 1:

  the switches use master/standby HSRP

  servers use active / standby NIC teaming (binding)

  2nd case:

  switches are connected by the stack into a big switch and use LACP etherchannel for port binding

  servers use teaming NIC/active (binding)

  In the first case, we have only L2 switch. It protects only if one switch down.

  In the second case, we have port NIC, cable, switch failoiver and a freer switch (using the stack instead of port HSRP) port. But it will work correctly? I've found good article on this topology. And is there another way?

  Dear experts, please direct me to the right path.

  Hello

  first have you checked the cisco nexus switches that are designed for data center networking?

  where you can have one or two active/active/in standby grouping of NETWORK adapters without any dependencies on L2 STP

  In addition, you can have a lot more improved capabilities and characteristics of a current network continuous

  If you want to only consider the 3750, I would say you have to go with the second option, using the stack, and you can use two types of grouping of cards NETWORK and no need to STP or HSRP simple and redaundant

  hope this helps

• Differences between the ISCSI connections to the storage in vSphere 4.1 and 5.0.

  I'm in trouble of setting up the connections of storage in a new VSphere 5.0 test environment. In our environment VSphere 4.1, it was possible to create a virtual switch add two Broadcom NetXtreme II 5709 NIC. Set assets. IP Hash value as load balancing. (LACP Etherchannel on physical switches) This configuration uses a grain port and a single IP address. Then add our NetApp NFS storage and ISCSI Equillogic storage. In VSphere 5.0, I can't create this same configuration. I have to create separate with separate IP addresses vmkernal ports? The idea was to have redundant connections to the storage and flow of these two NETWORK cards. Possibly adding additional if necessary to the futuer NETWORK cards. Any help with this would be greatly appreciated.

  How can I work around this:

  "VMkernel network adapter must have an active link exactly and no waiting rising to be eligible for the iSCSI HBA connection."

  I can certainly say that the way which allows you to configure the iSCSI Multipathing is incorrect.

  The main idea is to let Native Multipathing Plugin to decide what network path to choose, not the vSwitch.

  At the level of the network layer, you must have 1 VMK by a physical NIC.

  This technique applies as well for vSphere 4.1 and 5.0, but with the 5.0 it is configured easier and more quickly.

  Here's a very brief consequence of steps

  1. get 2 VMK interfaces and assign an IP by each VMK.

  2. set each VMK to use only one physical NETWORK adapter

  3 GB with storage iSCSI software adapter, turn it on and bind your VMKs 2.

  4 connect to your iSCSI storage space

  5 rescan devices, create the VMFS datastore

  6. set the desired load balancing VMFS method or just set up a prior default create new VMFS

  and it is strongly recommended to read this guide - http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-storage-guide.pdf

• Installation of physical switches for ISCSI traffic

  Is that all I need to know from a networking perspective to configure ISCSI switches dedicated to support my ISCSI SAN on the left?

  I do not plan on switches connected to the prod network. I only plan on using these switches for ISCSI traffic.

  LeftHand supports LACP, if your supprt of switches that you should consider using the trunk mode. In my SAN P4300, I have two 3750's stacked. Each SAN node will connect to each switch and is located in a LACP/etherchannel link. All this is condensed to a single virtual IP address which is presented to ESX/i. don't forget to create a vmk for each dedicated vmware iscsi connection and bind according to this pdf.

• LACP. Recommendation of etherchannel, PaGP or static

  Hi all

  Some time ago I have red somewhere that the recommended way to create portchannels is to use the static method 'on' configuration. However, I am not able to find this information. Anyone here have a reference to the recommended method to configure portchannels?

  I found the following document:

  http://www.Cisco.com/en/us/docs/switches/LAN/catalyst6500/IOS/12.2Sx/best/practices/recommendations.html#wp1046803

  This document does not have an explicit statement that the method is preferable. Could someone help me with this please?

  Hi Michael,

  I would stay away from MODE in chanenling, a large part of the time that it leads to the switching loop.

  On the other hand, PAGP/LACP allows dynamically negotionation of etherchannel a being owners and the other open standard. LACP even allows active / standby group of several links and using some of them, but the others are in standby mode incase any member string fails.

  I'm not sure if it is registered anywere you can use on PAgp LACP or Pagp on LACP.

  If the grouping between the cisco devices, so we prefer to use the Pagp as is the owner of cisco.

  Kind regards

  Reem.

• Port Channerl - LACP Mode

  Hello, I defined an Interface Port - channel in LACP mode, in a switch Catalyst 3850:

  !
  Interface Port-Channel 4
  switchport mode access
  end

  To this port-channel interface, I associate two interfaces:

  !
  interface GigabitEthernet1/0/4
  Description - PC03-ADM -.
  switchport mode access
  channel-group mode 4 passive
  end

  YN-NW-GB06-170 #sh run int g2/0/4
  Building configuration...

  Current configuration: 120 bytes
  !
  interface GigabitEthernet2/0/4
  Description - PC03-ADM -.
  switchport mode access
  channel-group mode 4 passive
  end

  When I check the status of the interfaces, I see:

  YN-NW-GB06-170 #sh etherchannel 4 Synt.
  Flags: - Low P - D bundled in port-channel
  I have - autonomous s - suspended
  H Eve (LACP only)
  R - Layer 3 S - Layer2
  U - running f - cannot allocate an aggregator

  M - don't use, minimum contacts not satisfied
  u - unfit to tied selling
  w waiting to be aggregated
  d default port

  Number of channels in use: 4
  Number of aggregators: 4

  Protocol for the Port-Channel port group
  ------+-------------+-----------+-----------------------------------------------
  Po4 (SU) 4, Gi1/0/4 (P) LACP Gi2/0/4 (s)

  YN-NW-GB06-170 #sh int g1/0/4
  GigabitEthernet1/0/4 is up, line protocol is up (connected)
  Equipment is Gigabit Ethernet, the address is f078.16c4.fb04 (bia f078.16c4.fb04)
  Description: - PC03-ADM -.
  MTU 1500 bytes, BW 1000000 Kbit/s, 10 DLY usec,
  reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  KeepAlive set (10 sec)
  Full duplex, 1000 Mbps, media type is 10/100/1000BaseTX
  input stream control is turned off, output flow control is not supported
  Type of the ARP: ARPA, ARP Timeout 04:00
  Last entry from 00:00:12, exit ever, blocking of output never
  Final cleaning of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/dumps); Total output drops: 0
  Strategy of queues: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bps, 0 packets/s
  5 minute output rate 578000 bps, 489 packets/s
  6345 packets input, 808991 bytes, 0 no buffer
  Received 3591 broadcasts (241 multicasts)
  0 Runts, 0 giants, 0 shifters
  entry 0, 0 CRC errors, frame 0, saturation 0, 0 ignored
  Watchdog 0, 241 multicast, break 0 comments
  entry packets 0 with condition of dribble detected
  1674339 packets output, 183387434 bytes, 0 underruns
  0 output errors, 0 collisions, 3 interface resets
  unknown protocol 0 drops
  0 babbles, collision end 0, 0 deferred
  carrier, 0 no carrier, lost 0 0 interrupt output
  output buffer, the output buffers 0 permuted 0 failures
  YN-NW-GB06-170 #sh int g2/0/4
  GigabitEthernet2/0/4 is up, line protocol is down (suspended)
  Equipment is Gigabit Ethernet, the address is f0b2.e591.d284 (bia f0b2.e591.d284)
  Description: - PC03-ADM -.
  MTU 1500 bytes, BW 1000000 Kbit/s, 10 DLY usec,
  reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  KeepAlive set (10 sec)
  Full duplex, 1000 Mbps, media type is 10/100/1000BaseTX
  input stream control is turned off, output flow control is not supported
  Type of the ARP: ARPA, ARP Timeout 04:00
  Last entry, never, never hang output
  Final cleaning of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/dumps); Total output drops: 0
  Strategy of queues: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bps, 0 packets/s
  5 minute output rate 0 bps, 0 packets/s
  0 packets input, 0 bytes, 0 no buffer
  Received 0 emissions (0 multicasts)
  0 Runts, 0 giants, 0 shifters
  entry 0, 0 CRC errors, frame 0, saturation 0, 0 ignored
  Watchdog 0, multicast 0, break 0 comments
  entry packets 0 with condition of dribble detected
  138082 packets output, 26616915 bytes, 0 underruns
  0 output errors, 0 collisions, 3 interface resets
  unknown protocol 0 drops
  0 babbles, collision end 0, 0 deferred
  carrier, 0 no carrier, lost 0 0 interrupt output
  output buffer, the output buffers 0 permuted 0 failures
  # YN-NW-GB06-170

  I ask, this is the normal behavior of interfaces in this mode, or I made mistake.

  Please your help in this matter.

  Kind regards.

  Fernando.

  Read this article:

  http://anotheritblog.NET/2014/08/19/Windows-Server-2012-LACP-NIC-teaming-on-Cisco-Catalyst/

  I think that once you change the mode on the Cisco end will be correct.

• Lacp 3560 switch circuits

  I'm trying to run a trunk on a four port Lacp group to a form of switch netgear a 3560 but am stuck. Everything works fine if I place a chest with a single autonomous port, and that everything works when I use a group of Lacp 'switchport access' mode, but as soon as I activate "switchport trunk" each gi status goes to "suspended" and no traffic flows.

  Does anyone have any suggestions?

  Thank you.

  Andrew,

  Thank you for the additional information. The configuration of the ports seems to be ok now.

  After the Show etherchannel , physical ports are individual-State. This would mean that the switches did not negotiate the creation of the Association using the LACP Protocol and ports still work as four individual switchports.

  The neighboring switch talking LACP? If he is put in LACP active mode? At least one device must be in LACP active state, and both must talk to LACP. Maybe you could try to replace orders 1 channel-group passive mode 1 mode channel-group active in your configuration.

  Best regards

  Peter

• LACP using the 2 x 10G ports does not appear 20G?

  I currently have etherchannel configured 2 x 10g ports.

  Cat_6509 #sh run int ten8/1
  Building configuration...

  Current configuration: 156 bytes
  !
  interface TenGigabitEthernet8/1
  switchport
  switchport mode trunk
  desirable mode of channel-group 42
  end

  Cat_6509 #sh run ten9/1 int
  Building configuration...

  Current configuration: 156 bytes
  !
  interface TenGigabitEthernet9/1
  switchport
  switchport mode trunk
  desirable mode of channel-group 42
  end

  Cat_6509 #.

  Cat_6509 #sh int t8/1
  TenGigabitEthernet8/1 is up, line protocol is up (connected)
  The hardware is C6k 10000 MB 802.3, address is fc99.4736.a2f0 (bia fc99.4736.a2f0)
  Description: 10 Gig GEC to MADDC (VLAN split)
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
  reliability 255/255, txload 5/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  KeepAlive set (10 sec)
  Full-duplex, 10 Gb/s
  !
  Cat_6509 #sh int t9/1
  TenGigabitEthernet9/1 is up, line protocol is up (connected)
  The hardware is C6k 10000 MB 802.3, address is fc99.4736.a238 (bia fc99.4736.a238)
  Description: 10 Gig GEC to MADDC (VLAN split)
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
  reliability 255/255, txload 8/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  KeepAlive set (10 sec)
  Full-duplex, 10 Gb/s
  !
  Cat_6509 #sh int po42
  Port-channel42's up, line protocol is in place (tied)
  Material is EtherChannel, address is fc99.4736.a2f0 (bia fc99.4736.a2f0)
  Description: 10 Gig GEC to MADDC (VLAN split)
  MTU 1500 bytes, BW 20000000 Kbit, DLY 10 usec,
  reliability 255/255, txload 7/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  KeepAlive set (10 sec)
  Full-duplex, 10 Gb/s< should="" this="" be="" 20gb="" if="" the="" ports="" are="">

  Cat_6509 #show etherchannel 42 summary
  Flags: - Low P - D bundled in port-channel
  I have - autonomous s - suspended
  H Eve (LACP only)
  R - Layer 3 S - Layer2
  U - N running - is not in service, no aggregation
  f cannot allocate an aggregator

  M not in use, no aggregation due to minimum links has not met
  m don't use, port do not associate due to not meeting minimum links
  u - unfit to tied selling
  d default port

  w waiting to be aggregated
  Number of channels in use: 28
  Number of aggregators: 28

  Protocol for the Port-Channel port group
  ------+-------------+-----------+-----------------------------------------------
  Po42 42 PAgP Te8/1 (P) (SU) Te9/1 (P)

  Last applied Hash Algorithm of Distribution: fixed

  Cat_6509 #.

  Thank you

  ST

  Found this.  Does that help?

  https://supportforums.Cisco.com/discussion/11494901/fabric-interconnect-uplink-port-channeling

• The traffic is not correctly distributed through each link of etherchannel.

  Dear team,

  You can all have a clue on below.

  I have a cisco 3560 and created the port-channel switch and assign the port two to Po1 switch is connected to the HP VC.

  The question is highly uses a single port and on the other port no traffic is there.

  Please find below the config for your reference.

  Cisco 3560

  Switch1 #sh su etherchannel

  Flags: - Low P - D bundled in port-channel

  I have - autonomous s - suspended

  H Eve (LACP only)

  R - Layer 3 S - Layer2

  U - running f - cannot allocate an aggregator

  M - don't use, minimum contacts not satisfied

  u - unfit to tied selling

  w waiting to be aggregated

  d default port

  Number of channels in use: 4

  Number of aggregators: 4

  Protocol for the Port-Channel port group

  ------+-------------+-----------+-----------------------------------------------

  1 Po1 (SU) LACP Gi0/28 (P) Gi0/30 (P)

  2 Po2 (SU) - Gi0/22 (P) Gi0/23 (P) Gi0/24 (P)

  Gi0/25 (P) Gi0/26 (P) Gi0/27 (P)

  3 Po3 (SU) - Gi0/6 (P) Gi0/7 (P) Gi0/8 (P)

  Gi0/9 (P) Gi0/10 (P) Gi0/11 (P)

  4 (SU) Po4 - Gi0/1 (P) Gi0/14 (P)

  #sh Switch1 run int po1

  Building configuration...

  Current configuration: 166 bytes

  !

  Interface Port - Channel 1

  Description HP VC

  switchport trunk encapsulation dot1q

  switchport trunk allowed vlanXXXX

  switchport mode trunk

  end

  #sh Switch1 run int g0/28

  Building configuration...

  Current configuration: 223 bytes

  !

  interface GigabitEthernet0/28

  Server HP VC Description

  switchport trunk encapsulation dot1q

  switchport trunk allowed vlan XXXX

  switchport mode trunk

  channel-protocol lacp

  active in mode channel-group 1

  end

  #sh Switch1 run int g0/30

  Building configuration...

  Current configuration: 223 bytes

  !

  interface GigabitEthernet0/30

  Server HP VC Description

  switchport trunk encapsulation dot1q

  switchport trunk allowed vlan XXXX

  switchport mode trunk

  channel-protocol lacp

  active in mode channel-group 1

  end

  Switch1 #.

  Kind regards

  Prasad

  Disclaimer

  The author of this announcement offers the information in this publication without compensation and with the understanding of the reader that there is no implicit or explicit adequacy or adaptation to any purpose.  Information provided is for information purposes only and should not be interpreted as making the professional advice of any kind. Use information from this announcement is only at risk of the reader.

  RESPONSIBILITY

  Any author will be responsible for any damage that it (including, without limitation, damages for loss of use, data or profits) arising out of the use or inability to use the information in the view even if author has been advised of the possibility of such damages.

  Poster

   

  If you see a load imbalance to THE switch (i.e. from your server), then you should see if your server has any load balancing options like the switch has no control over this.

  If you see load imbalance OF switch (IE your server), then your need to select the best hash algorithm, for your traffic load balancing features.  Often by default of the switch is not the best.  Often using IP source and destination addresses works well.

  Sometimes, realize that the switch does not offer a good hash algorithm for your traffic for load balancing.  For example, if the majority of your traffic was between two hosts (replication, for example), all the traffic that would take the same link.  (Note: a hash of 6500 offers which includes port numbers for such situations, but not 3K switches.)

  This link http://www.cisco.com/c/en/us/support/docs/lan-switching/etherchannel/12023-4.html, explains your choices on different Cisco switches.

• EtherChannel problem for 6500 VSS

  Hello team,

  Could someone suggest if I use a lot of running etherchannel configuration between my access (4500) and DS (6500) can create any problem to etherchannnel. In my environment, I am experiecing my interfaces of contactors provided access down and we must manually reconnect the cable up to the etherchannel bundle.

  Y at - it an oversubscription happenning in my 6500 chasis causing the bundle down the State. Newspapers at the time the end suggest that for the components of the interface.

  Note: 6500 is in vs.

  6506-E # sh etherchannel summary

  Flags: - Low P - D bundled in port-channel

  I have - autonomous s - suspended

  H Eve (LACP only)

  R - Layer 3 S - Layer2

  U - N running - is not in service, no aggregation

  f cannot allocate an aggregator

  M not in use, no aggregation due to minimum links has not met

  m don't use, port do not associate due to not meeting minimum links

  u - unfit to tied selling

  d default port

  w waiting to be aggregated

  Number of channels used: 27

  Number of aggregators: 27

  Protocol for the Port-Channel port group

  ------+-------------+-----------+-----------------------------------------------

  Po1 (RU) 1 - Te1/5/4 (P) Te1/5/5 (P)

  Po2 (RU) 2 - 5/Te2/4 (P) Te2/5/5 (P)

  3 Po3 (SU) - Gi1/1/3 (P) Gi2/1/3 (P)

  10 Po10 (SU) - Gi1/1/5 (P) Gi2/1/5 (P)

  11 Po11 (SU) - Gi1/1/6 (P) Gi2/1/6 (P)

  14 Po14 (SD)-

  17 Po17 (SU) - Gi2/1/4 (D) Gi2/2/14 (P)

  19 Po19 (SU) - Gi1/1/14 (P) Gi2/1/14 (P)

  20 Po20 (SU) - Gi1/1/15 (P) Gi2/1/15 (P)

  21 Po21 (SU) - Gi1/1/16 (P) Gi2/1/16 (P)

  22 Po22 (SU) - Gi1/1/17 (P) Gi2/1/17 (P)

  23 Po23 (SU) - Gi1/1/18 (P) Gi2/1/18 (P)

  Po24 (SU) 24 - Gi1/1/19 (P) Gi2/1/19 (P)

  25 Po25 (SU) - Gi1/1/20 (P) Gi2/1/20 (P)

  26 Po26 (SU) - Gi1/1/21 (P) Gi2/1/21 (P)

  27 Po27 (SU) - Gi1/1/22 (P) Gi2/1/22 (P)

  28 in28 (SU) - Gi1/1/23 (P) Gi2/1/23 (P)

  In29 (SU) 29 - Gi1/1/24 (P) Gi2/1/24 (P)

  30 Po30 (SU) - Gi1/2/1 (P) Gi2/2/1 (P)

  31 Po31 (SU) - Gi1/2/2 (P) Gi2/2/2 (P)

  32 32 (SU) - Gi1/2/3 (P) Gi2/2/3 (P)

  33 Po33 (SU) - Gi1/2/4 (P) Gi2/2/4 (P)

  34 in34 (SU) - Gi1/2/5 (P) Gi2/2/5 (P)

  35 in35 (SU) - Gi1/2/6 (P) Gi2/2/6 (P)

  36 Po36 (SU) - Gi1/2/7 (P) Gi2/2/7 (P)

  37 in37 (SU) - Gi1/2/8 (P) Gi2/2/8 (P)

  38 in38 (SU) - Gi1/2/9 (P) Gi2/2/9 (P)

  Hello Sanjay

  Y at - it an oversubscription happenning in my 6500 chasis causing the bundle down the State. Newspapers at the time the end suggest that for the components of the interface.

  Oversubscription can happen at the ASIC level and line card, but I don't think that anything to do with the problem whereby what is oversubscription has confronted your switch.

  With regard to the excess requests, here is an example

  WS - X 6724-SFP

  Port ranges by port group: 1-12, 13-24

  01:12 oversubscription rate (an ASIC each 12 ports)

  Look at this link for more information on excess requests in each module.

  http://www.Cisco.com/en/us/docs/switches/LAN/catalyst6500/hardware/Module_Installation/Mod_Install_Guide/02ethern.html#wp1040314

  VSS support up to 512 Etherchannels combined the total amout of the regular etherchannels and GUY.

• Slow EtherChannel?

  Hello

  I have 2x2950s and 2x3550s putting in place etherchannels between them. Everything looks ok, but the speed is always around 100 Mbps, even if there are a of the trunks 2xFE everywhere.

  I tried to isolate, connecting 2x2950s all - even, I get 100 Mbps max...

  My basic topology:

  PC with a NIC - 2950 GB - 2950 - PC with a Go

  Results of Iperf:

  [4] 172.16.1.144 local port 5001 connected with 172.16.1.28 port 51554

  [4] 0, 0 - dry 10.0 102 Mbps 85.4 MB

  [4] 172.16.1.144 local port 5001 connected with 172.16.1.28 port 51675

  [4] 0, 0 - dry 10.0 107 MB 89.3 Mbps

  I tried to change the PO/active - always the same ports. When I connect these PCs to the same 2950 switch using two gigabit ports, I get:

  [4] 0, 0 - dry 10.0 390 MB 327 Mbps

  I also tried to copy to PC3 to both PC1 and PC2, at the same time to ensure that she can balance the load - unfortunately I was getting 5-6 Mbps for each connection only

  I missed something obvious?

  My config and show the basic commands:

  SWITCH1

  #sh Switch1 run int po1

  Building configuration...

  Current configuration: 207 bytes

  !

  Interface Port - Channel 1

  ETHERCHANNEL description

  switchport vlan trunk native 2

  switchport trunk allowed vlan 1-4 991 002-1005

  switchport mode trunk

  switchport nonegotiate

  FlowControl send

  end

  #sh Switch1 run int f0/18

  Building configuration...

  Current configuration: 190 bytes

  !

  interface FastEthernet0/18

  switchport vlan trunk native 2

  switchport trunk allowed vlan 1-4 991 002-1005

  switchport mode trunk

  switchport nonegotiate

  active in mode channel-group 1

  end

  #sh Switch1 run int f0/19

  Building configuration...

  Current configuration: 190 bytes

  !

  interface FastEthernet0/19

  switchport vlan trunk native 2

  switchport trunk allowed vlan 1-4 991 002-1005

  switchport mode trunk

  switchport nonegotiate

  active in mode channel-group 1

  end

  Switch1 #sh ethe

  Switch1 #sh su etherchannel

  Switch1 #sh etherchannel summary

  Flags: D - low P - port-channel

  I have - autonomous s - suspended

  H Eve (LACP only)

  R - Layer 3 S - Layer2

  u - unfit to tied selling

  U - running f - cannot allocate an aggregator

  d default port

  Number of channels: 1

  Number of aggregators: 1

  Protocol for the Port-Channel port group

  ------+-------------+-----------+----------------------------------------------

  1 Po1 (SU) LACP Fa0/18 (P) Fa0/19 (Pd)

  Switch1 #sh int po1

  Port-channel 1 is up, line protocol is up (connected)

  Material is EtherChannel, address is 0009.43ae.ce13 (bia 0009.43ae.ce13)

  Description: ETHERCHANNEL

  MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec,

  reliability 255/255, txload 5/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Full-duplex, 100 MB/s, media type is the unknown media type

  input stream control is turned off, output flow control is disabled

  Members in this channel: Fa0/18 Fa0/19

  Type of the ARP: ARPA, ARP Timeout 04:00

  Last entry at 00:01:23, 00:00:00 exit, exit hang never

  Final cleaning of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/dumps); Total output drops: 0

  Strategy of queues: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 89000 bps, 172 packets/s

  5 minute output rate 4495000 bps, 354 packets/s

  2831392 package, 2669151653 bytes, 1056 no input buffer

  Received 36665 broadcasts (29399 multicast)

  0 Runts, 0 giants, 0 shifters

  entry 0, 0 CRC errors, frame 0, 0, saturation, ignored 1056

  Watchdog 0, multicast 29399, break 0 comments

  entry packets 0 with condition of dribble detected

  2885680 packets output, 3152464741 bytes, 0 underruns

  0 output errors, 0 collisions, 1 interface resets

  0 babbles, collision end 0, 0 deferred

  carrier, 0 no carrier, lost 0 0 output BREAK

  output buffer, the output buffers 0 permuted 0 failures

  SWITCH2

  
  

  SWITCH2 #sh run int po1

  Building configuration...

  Current configuration: 206 bytes

  !

  Interface Port - Channel 1

  ETHERCHANNEL description

  switchport vlan trunk native 2

  switchport trunk allowed vlan 1-4 991 002-1005

  switchport mode trunk

  switchport nonegotiate

  FlowControl send

  end

  SWITCH2 #sh run int f0/18

  Building configuration...

  Current configuration: 190 bytes

  !

  interface FastEthernet0/18

  switchport vlan trunk native 2

  switchport trunk allowed vlan 1-4 991 002-1005

  switchport mode trunk

  switchport nonegotiate

  active in mode channel-group 1

  end

  SWITCH2 #sh run int f0/19

  Building configuration...

  Current configuration: 190 bytes

  !

  interface FastEthernet0/19

  switchport vlan trunk native 2

  switchport trunk allowed vlan 1-4 991 002-1005

  switchport mode trunk

  switchport nonegotiate

  active in mode channel-group 1

  end

  #sh su ethe SWITCH2

  Flags: D - low P - port-channel

  I have - autonomous s - suspended

  H Eve (LACP only)

  R - Layer 3 S - Layer2

  u - unfit to tied selling

  U - running f - cannot allocate an aggregator

  d default port

  Number of channels: 1

  Number of aggregators: 1

  Protocol for the Port-Channel port group

  ------+-------------+-----------+--------------------------------------------

  1 Po1 (SU) LACP Fa0/18 (Pd) Fa0/19 (P)

  #sh int po1 SWITCH2

  Port-channel 1 is up, line protocol is up (connected)

  Material is EtherChannel, address is 000a.b7dd.3d12 (bia 000a.b7dd.3d12)

  Description: ETHERCHANNEL

  MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec,

  reliability 255/255, txload 1/255, rxload 4/255

  Encapsulation ARPA, loopback not set

  Full-duplex, 100 MB/s, media type is the unknown media type

  input stream control is turned off, output flow control is disabled

  Members in this channel: Fa0/18 Fa0/19

  Type of the ARP: ARPA, ARP Timeout 04:00

  Last entry of 00:00:00, 00:02:58 exit, exit hang never

  Final cleaning of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/dumps); Total output drops: 0

  Strategy of queues: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 3268000 bps, 254 packets/s

  5 minute output rate 56000 bps, 117 packets/s

  2896053 package, 3157891899 bytes, 0 no buffer entry

  Received 33572 broadcasts (28209 multicast)

  0 Runts, 0 giants, 0 shifters

  entry 0, 0 CRC errors, frame 0, saturation 0, 0 ignored

  Watchdog 0, multicast 28204, break 0 comments

  entry packets 0 with condition of dribble detected

  2755632 packets output, 2612593705 bytes, 0 underruns

  0 output errors, 0 collisions, 1 interface resets

  0 babbles, collision end 0, 0 deferred

  carrier, 0 no carrier, lost 0 0 output BREAK

  output buffer, the output buffers 0 permuted 0 failures

  Well your ports located in the channel of the port are 100Meg ports so certainly you will get no more 100Meg out of it.  When you perform a method on the default channel port load balancing switch is CBC - mac.  Which means that if PC1 has a x.x.x MAC and this is the source of all data might exceed the first link.  Now, if you add another PC with a MAC of y.y.y that might exceed the second link.  Top of the line past offers better and more granular load balancing of methods such as mac source and destination or IP, ports etc.

• EtherChannel issues

  Hello

  Can anyone tell my why it creates a 'B' portchannel?

  Here comes configuration:

  ***************************************************************************************

  Core-server01 #sh etherchannel 225 Synt.
  Flags: - Low P - D bundled in port-channel
  I have - autonomous s - suspended
  H Eve (LACP only)
  R - Layer 3 S - Layer2
  U - N running - is not in service, no aggregation
  f cannot allocate an aggregator

  M not in use, no aggregation due to minimum links has not met
  m don't use, port do not associate due to not meeting minimum links
  u - unfit to tied selling
  d default port

  w waiting to be aggregated
  Number of channels: 7
  Number of aggregators: 8

  Protocol for the Port-Channel port group
  ------+-------------+-----------+-----------------------------------------------
  Po225 (SU) 225 LACP Gi3/44 (P) Gi3/45 (P)
  Po225B (SU) 225 LACP Gi3/46 (P) Gi3/47 (P) Gi3/48 (P)

  **************************************************************************************

  Interface Port-channel225
  Description portchannel mod BLC02
  switchport
  switchport trunk encapsulation dot1q
  switchport trunk allowed vlan 10-50
  switchport mode trunk

  **************************************************************************************

  interface GigabitEthernet3/44
  switchport
  switchport trunk encapsulation dot1q
  switchport trunk allowed vlan 10-50
  switchport mode trunk
  No auto mdix
  channel-protocol lacp
  active in mode channel-group 225
  chest of edge spanning tree portfast
  end

  **************************************************************************************

  interface GigabitEthernet3/46
  switchport
  switchport trunk encapsulation dot1q
  switchport trunk allowed vlan 10-50
  switchport mode trunk
  No auto mdix
  channel-protocol lacp
  active in mode channel-group 225
  chest of edge spanning tree portfast
  end

  It is an etherchannel for HP Blade on a 6509e catalyst running IOS 12.2 (33) SXI3.

  Our problem is that we cannot achieve all of our servers on the center of the blade.

  Concerning

  Thomas

  The answer which has been reported in the forums is that for some reason, that link under for example 225 b members are a minor difference when the beam.

  Hope to help!

  Ganesh.H