UNSOLVED

KarolKislenko

updated

14 years ago

0

67281

November 5th, 2012 06:00

iSCSI VLAN & LAG between two PC6224

I have run into a little problem with correctly configuring PC6224 switches for LAG and iSCSI VLAN.

The configurations on both switches are these:

!Current Configuration:
!System Description "PowerConnect 6224, 3.3.4.1, VxWorks 6.5"
!System Software Version 3.3.4.1
!Cut-through mode is configured as disabled
!
configure
vlan database
vlan 2
vlan routing 2 1
exit
hostname "punane"
stack
member 1 1
exit
ip address 192.168.1.233 255.255.255.0
ip default-gateway 192.168.1.1
lacp system-priority 120
interface vlan 2
name "iSCSI"
routing
ip address 192.168.234.230 255.255.255.0
exit
!
interface ethernet 1/g2
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g3
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g4
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g5
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g6
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g7
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g8
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g9
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g10
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g11
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g12
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g13
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g14
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g15
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g16
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g17
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g18
storm-control broadcast
storm-control multicast
spanning-tree portfast
mtu 9216
switchport access vlan 2
exit
!
interface ethernet 1/g19
channel-group 1 mode on
lacp port-priority 247
mtu 9216
exit
!
interface ethernet 1/g20
channel-group 1 mode on
lacp port-priority 247
mtu 9216
exit
!
interface ethernet 1/g21
channel-group 1 mode on
lacp port-priority 247
mtu 9216
exit
!
interface ethernet 1/g22
channel-group 1 mode on
lacp port-priority 247
mtu 9216
exit
!
interface ethernet 1/g23
channel-group 1 mode on
lacp port-priority 247
mtu 9216
exit
!
interface ethernet 1/g24
channel-group 1 mode on
lacp port-priority 247
mtu 9216
exit
!
interface port-channel 1
switchport mode trunk
switchport trunk allowed vlan add 2
exit
 
My goal is this that on both switches port 1 is management, this works. Ports 2-18 are for iSCSI traffic and ports 19-24 are for LAG.
After setting it all up and connecting servers and PS4000 to iSCSI VLAN the servers are not using MPIO. 
I am guessing that this is because a problem with LAG not passing the iSCSI VLAN data. 
What might be the problem here?
  • 1717

    0

    Posted November 5th, 2012 09:00

    In order for the management VLAN to traverse over your port channel you will need to set the switchport mode to general instead of trunk.  On the PowerConnect 62xx series switches, you must use General mode if you want to allow management traffic onto the switch over the PVID.  If you use Trunk mode, you will not have the default VLAN on those ports.  The ports will only allow tagged traffic.

    console(config)# interface port=channel 1

    console(config-if)# switchport mode general

    console(config-if)# switchport general allowed vlan add 2 tagged

    console(config-if)# switchport general pvid 1

    As far as any up to date information on the MPIO functionality with your storage you may direct that to the storage group or we could move the Post to the storage forum.  Let us know if this something that you desire.

  • 1717

    0

    Posted November 6th, 2012 03:00

    One more thing I forgot, the connections between PS4000 and servers are working, if I disable the NIC that has currently active connections to PS4000 then the other adapter takes over and it's seen on the PS4000 management that now connections come from different IP.

  • 1717

    0

    Posted November 6th, 2012 03:00

    I did all this, but it seems that this did not solve my problem, MPIO is still not working.

    I know that the servers are not the problem, because they worked with MPIO with older PC6224's, where I did not use VLAN to separate iSCSI traffic. The old PC6224's had also a LAG set up and all ports where then available for iSCSI. Now that we neede new switches to expand our network I decided to swap 6224's from the SAN to put newer ones there and by the stuff I have learned since my first SAN setup I decided to speratae the iSCSI traffic.

    Also one curious thing about the commands You posted, if I look at the running config then there is no console(config-if)# switchport general pvid 1 in there, but when I check thru the web console it show's that ch1 has PVID 1

  • Dev Mgr

    6 Operator

    9308 Posts

    3 Points

    1717

    0

    Posted November 9th, 2012 08:00

    Some notes about your config:

    - if a port is made part of a port-channel, no other settings should be applied to that port (e.g. MTU)

    - you set up a LAG without LACP (static), but then use LACP settings on the ports

    - you have management set to vlan 1, but the trunk (on the LAG) only allows VLAN 2.

    I'd suggest to

    - change from "channel-group 1 mode on" to "channel-group 1 mode auto"

    - remove the MTU settings from the individual LAG ports

    - add the MTU to the port-channel (this is most likely why MPIO isn't working if your servers are set to use jumbo frames.

    - add vlan 1 to the trunk on the LAG (switchport trunk allowed vlan add 1,2)

  • Joe S586

    9 Technologist

    729 Posts

    1717

    0

    Posted November 9th, 2012 13:00

    Look at your mac address table on both switches, you should see ALL the array interfaces (eth0, 1,2, etc. and your host iSCS interfaces i.e., whatever you have wired to both switches) listed. 

    Telnet into a switch, and try pinging/traceroute from one switch to a iSCSI interface connected to the other switch.

    Telnet/SSH into each of your array member(s), use one of the eth IP address, not the group IP

    ping "-I "

    (that is a –I as in Capital letter “eye”, ensure you use the quotes after the command and at the end of the destIP).  Use CTRL-C to quit.  

    The “source_ETH_IP” is one of the eth interfaces of the member you connected to (eth0, eth1, etc.)

    The “dest_IP” is each of the eth interfaces of the other member(s)

    Test all combinations, to other members, to host iSCSI interfaces.

    To Traceroute:

    Telnet/SSH in to the member use one of the ETH interface ip’s not the group IP), then traceroute out of each specific ETH port,

    GrpName>support

    GrpName(support)>traceroute “-s [ETH port source IP] [destinationIP]”

    Also note the quotes after the command and at the end of the destinationIP.

    “ETH port Soruce IP” is the member you connected to

    The “destinationIP” is the other member test each eth combination (all members eth interfaces, and host iSCSI interfaces).  

    If you don’t see all the mac address, or any of pings fail, you may need to enable spanning tree on the lag ports so that they can learn the mac address from the other switch.  This would be enabled on both sides of the lags, for each interface you configured (19-24)

    -joe

  • 1712

    0

    Posted November 12th, 2012 01:00

    Now my switch config looks like this:

    !Current Configuration:

    !System Description "PowerConnect 6224, 3.3.4.1, VxWorks 6.5"

    !System Software Version 3.3.4.1

    !Cut-through mode is configured as disabled

    !

    configure

    vlan database

    vlan 2

    vlan routing 2 1

    exit

    hostname "punane"

    stack

    member 1 1

    exit

    ip address 192.168.1.233 255.255.255.0

    ip default-gateway 192.168.1.1

    lacp system-priority 120

    interface vlan 2

    name "iSCSI"

    routing

    ip address 192.168.234.230 255.255.255.0

    exit

    !

    interface ethernet 1/g2

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g3

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g4

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g5

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g6

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g7

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g8

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g9

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g10

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g11

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g12

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g13

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g14

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g15

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g16

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g17

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g18

    storm-control broadcast

    storm-control multicast

    spanning-tree portfast

    mtu 9216

    switchport access vlan 2

    exit

    !

    interface ethernet 1/g19

    channel-group 1 mode auto

    lacp port-priority 247

    exit

    !

    interface ethernet 1/g20

    channel-group 1 mode auto

    lacp port-priority 247

    exit

    !

    interface ethernet 1/g21

    channel-group 1 mode auto

    lacp port-priority 247

    exit

    !

    interface ethernet 1/g22

    channel-group 1 mode auto

    lacp port-priority 247

    exit

    !

    interface ethernet 1/g23

    channel-group 1 mode auto

    lacp port-priority 247

    exit

    !

    interface ethernet 1/g24

    channel-group 1 mode auto

    lacp port-priority 247

    exit

    !

    interface port-channel 1

    switchport mode general

    switchport general allowed vlan add 2

    mtu 9216

    exit

     

     

    Tried also swichpoer general allowed vlan add 2 tagged, no joy.

    Pinging from the array member just confirms what we already know, that EHT0 doesn't see the traffic from ETH1 because the LAG is not configured correctly.

  • Joe S586

    9 Technologist

    729 Posts

    1712

    0

    Posted November 12th, 2012 07:00

    Post the following:

    show vlan (shortcut is "sh vlan")

    show interfaces switchport (shortcut is "sh int port")

    show spanning-tree (shortcut is "sh span")

    show spanning-tree mst-configuration

    show bridge address

    Could be that the spanning tree mst isn't setup correctly for the vlans:

    -joe

  • 1712

    0

    Posted November 12th, 2012 08:00

    punane#show vlan

    VLAN       Name                         Ports          Type      Authorization

    -----  ---------------                  -------------  -----     -------------

    1      Default                          ch1-48,1/g1,   Default   Required

                                           1/xg1-1/xg4

    2      iSCSI                            ch1,1/g2-1/g18 Static    Required

    show interfaces switchport (shortcut is "sh int port") is not recognized command, did You mean the port-channel 1 instead?

    punane#show interfaces switchport port-channel 1

    Port: ch1

    VLAN Membership mode:General Mode

    Operating parameters:

    PVID: 1

    Ingress Filtering: Enabled

    Acceptable Frame Type: Admit All

    Default Priority: 0

    GVRP status:Disabled

    Port ch1 is member in:

    VLAN    Name                              Egress rule   Type

    ----    --------------------------------- -----------   --------

    1       Default                           Untagged      Default

    2       iSCSI                             Untagged      Static

    Static configuration:

    PVID: 1

    Ingress Filtering: Enabled

    Acceptable Frame Type: Admit All

    Port ch1 is statically configured to:

    VLAN    Name                              Egress rule

    ----    --------------------------------- -----------

    2       iSCSI                             Untagged

    Forbidden VLANS:

    VLAN    Name

    ----    ---------------------------------

    punane#show spanning-tree

    Spanning tree :Enabled - BPDU Flooding :Disabled - Portfast BPDU filtering :Disabled - mode :rstp

    CST Regional Root:        80:00:D0:67:E5:8F:CB:C1

    Regional Root Path Cost:  0

    ROOT ID

                 Address         00:0D:56:3D:F9:22

                 Path Cost       30000

                 Root Port      1/g1

                 Hello Time 2 Sec Max Age 20 sec Forward Delay 15 sec TxHoldCount 6 sec

    Bridge ID

                 Priority        32768

                 Address         D0:67:E5:8F:CB:C1

                 Hello Time 2 Sec Max Age 20 sec Forward Delay 15 sec

    Interfaces

    Name    State   Prio.Nbr    Cost       Sts  Role PortFast  Restricted

    ------  -------- --------- ----------  ---- ----- --------  -------

    1/g1    Enabled  128.1         20000   FWD  Root      No      No

    1/g2    Enabled  128.2         20000   FWD  Desg     Yes      No

    1/g3    Enabled  128.3         20000   FWD  Desg     Yes      No

    1/g4    Enabled  128.4         20000   FWD  Desg     Yes      No

    1/g5    Enabled  128.5         20000   FWD  Desg     Yes      No

    1/g6    Enabled  128.6         20000   FWD  Desg     Yes      No

    1/g7    Enabled  128.7         20000   FWD  Desg     Yes      No

    1/g8    Enabled  128.8             0   DIS  Disb     Yes      No

    1/g9    Enabled  128.9         20000   FWD  Desg     Yes      No

    1/g10   Enabled  128.10            0   DIS  Disb     Yes      No

    1/g11   Enabled  128.11            0   DIS  Disb     Yes      No

    1/g12   Enabled  128.12            0   DIS  Disb     Yes      No

    1/g13   Enabled  128.13            0   DIS  Disb     Yes      No

    1/g14   Enabled  128.14            0   DIS  Disb     Yes      No

    1/g15   Enabled  128.15            0   DIS  Disb     Yes      No

    1/g16   Enabled  128.16            0   DIS  Disb     Yes      No

    1/g17   Enabled  128.17            0   DIS  Disb     Yes      No

    1/g18   Enabled  128.18            0   DIS  Disb     Yes      No

    1/g19   Enabled  128.19            0   FWD  Disb      No      No

    1/g20   Enabled  128.20            0   FWD  Disb      No      No

    1/g21   Enabled  128.21            0   FWD  Disb      No      No

    1/g22   Enabled  128.22            0   FWD  Disb      No      No

    1/g23   Enabled  128.23            0   FWD  Disb      No      No

    1/g24   Enabled  128.24            0   FWD  Disb      No      No

    1/xg1   Enabled  128.25            0   DIS  Disb      No      No

    1/xg2   Enabled  128.26            0   DIS  Disb      No      No

    1/xg3   Enabled  128.27            0   DIS  Disb      No      No

    1/xg4   Enabled  128.28            0   DIS  Disb      No      No

    ch1     Enabled   96.626        3333   DSC  Altn      No      No

    ch2     Enabled   96.627           0   DIS  Disb      No      No

    ch3     Enabled   96.628           0   DIS  Disb      No      No

    ch4     Enabled   96.629           0   DIS  Disb      No      No

    ch5     Enabled   96.630           0   DIS  Disb      No      No

    ch6     Enabled   96.631           0   DIS  Disb      No      No

    ch7     Enabled   96.632           0   DIS  Disb      No      No

    ch8     Enabled   96.633           0   DIS  Disb      No      No

    ch9     Enabled   96.634           0   DIS  Disb      No      No

    ch10    Enabled   96.635           0   DIS  Disb      No      No

    ch11    Enabled   96.636           0   DIS  Disb      No      No

    ch12    Enabled   96.637           0   DIS  Disb      No      No

    ch13    Enabled   96.638           0   DIS  Disb      No      No

    ch14    Enabled   96.639           0   DIS  Disb      No      No

    ch15    Enabled   96.640           0   DIS  Disb      No      No

    ch16    Enabled   96.641           0   DIS  Disb      No      No

    ch17    Enabled   96.642           0   DIS  Disb      No      No

    ch18    Enabled   96.643           0   DIS  Disb      No      No

    ch19    Enabled   96.644           0   DIS  Disb      No      No

    ch20    Enabled   96.645           0   DIS  Disb      No      No

    ch21    Enabled   96.646           0   DIS  Disb      No      No

    ch22    Enabled   96.647           0   DIS  Disb      No      No

    ch23    Enabled   96.648           0   DIS  Disb      No      No

    ch24    Enabled   96.649           0   DIS  Disb      No      No

    ch25    Enabled   96.650           0   DIS  Disb      No      No

    ch26    Enabled   96.651           0   DIS  Disb      No      No

    ch27    Enabled   96.652           0   DIS  Disb      No      No

    ch28    Enabled   96.653           0   DIS  Disb      No      No

    ch29    Enabled   96.654           0   DIS  Disb      No      No

    ch30    Enabled   96.655           0   DIS  Disb      No      No

    ch31    Enabled   96.656           0   DIS  Disb      No      No

    ch32    Enabled   96.657           0   DIS  Disb      No      No

    ch33    Enabled   96.658           0   DIS  Disb      No      No

    ch34    Enabled   96.659           0   DIS  Disb      No      No

    ch35    Enabled   96.660           0   DIS  Disb      No      No

    ch36    Enabled   96.661           0   DIS  Disb      No      No

    ch37    Enabled   96.662           0   DIS  Disb      No      No

    ch38    Enabled   96.663           0   DIS  Disb      No      No

    ch39    Enabled   96.664           0   DIS  Disb      No      No

    ch40    Enabled   96.665           0   DIS  Disb      No      No

    ch41    Enabled   96.666           0   DIS  Disb      No      No

    ch42    Enabled   96.667           0   DIS  Disb      No      No

    ch43    Enabled   96.668           0   DIS  Disb      No      No

    ch44    Enabled   96.669           0   DIS  Disb      No      No

    ch45    Enabled   96.670           0   DIS  Disb      No      No

    ch46    Enabled   96.671           0   DIS  Disb      No      No

    ch47    Enabled   96.672           0   DIS  Disb      No      No

    ch48    Enabled   96.673           0   DIS  Disb      No      No

    punane#show spanning-tree mst-configuration

    Name: D0-67-E5-8F-CB-C1

    Revision: 0

    Instance    Vlan Mapped

    ----------  -----------------------------------------------

    0          1-2

    punane#show bridge address

    Aging time is 300 Sec

     Vlan        Mac Address       Port          Type

    -------- --------------------- ---------- --------------------

    1        0000.0000.FE00        1/g1       Dynamic

    1        0000.0000.FE01        1/g1       Dynamic

    1        000D.563D.F94A        1/g1       Dynamic

    1        0015.5D01.1E2F        1/g1       Dynamic

    1        0015.5D01.1E38        1/g1       Dynamic

    1        0015.5D01.1E3C        1/g1       Dynamic

    1        0015.5D01.1E3D        1/g1       Dynamic

    1        0015.5D01.1E40        1/g1       Dynamic

    1        0015.5D01.1F3F        1/g1       Dynamic

    1        0015.5D01.1F40        1/g1       Dynamic

    1        0015.5D01.1F41        1/g1       Dynamic

    1        0015.5D01.1F44        1/g1       Dynamic

    1        0016.EC99.BB90        1/g1       Dynamic

    1        0018.8B7F.7E52        1/g1       Dynamic

    1        001B.218F.6ED9        1/g1       Dynamic

    1        001B.218F.7759        1/g1       Dynamic

    1        001B.219D.D56D        1/g1       Dynamic

    1        001B.219D.D725        1/g1       Dynamic

    1        001C.23E2.9D80        1/g1       Dynamic

    1        001D.0983.09A2        1/g1       Dynamic

    1        001E.4F0E.5B5E        1/g1       Dynamic

    1        0020.6B6B.A840        1/g1       Dynamic

    1        0021.706D.7161        1/g1       Dynamic

    1        0021.706D.CCAB        1/g1       Dynamic

    1        0022.1987.89EF        1/g1       Dynamic

    1        0022.1987.89F0        1/g1       Dynamic

    1        0025.64C9.AB0F        1/g1       Dynamic

    1        0026.B95C.4F21        1/g1       Dynamic

    1        0026.B95C.4F22        1/g1       Dynamic

    1        0026.B9B9.6D34        1/g1       Dynamic

    1        0026.B9CF.9BEF        1/g1       Dynamic

    1        0080.7781.CD38        1/g1       Dynamic

    1        0090.FB2A.DF86        1/g1       Dynamic

    1        00C0.B753.0EB4        1/g1       Dynamic

    1        00C0.B753.0ECA        1/g1       Dynamic

    1        30E4.DB2A.9693        1/g1       Dynamic

    1        7845.C405.0AFA        1/g1       Dynamic

    1        842B.2B5D.76AA        1/g1       Dynamic

    1        842B.2B75.F84B        1/g1       Dynamic

    1        842B.2B75.F84C        1/g1       Dynamic

    1        842B.2B75.F84F        1/g1       Dynamic

    1        B8AC.6F19.DEB4        1/g1       Dynamic

    1        B8AC.6FCA.34FA        1/g1       Dynamic

    1        D067.E58F.CB85        1/g1       Dynamic

    1        D067.E58F.CB87        1/g1       Dynamic

    1        D067.E58F.CBC1        cpu        Management

    2        0009.8A06.6949        1/g3       Dynamic

    2        0010.1861.E3D8        1/g7       Dynamic

    2        0010.1861.E3D9        1/g7       Dynamic

    2        0015.5D01.1E31        1/g5       Dynamic

    2        0015.5D01.1E3F        1/g5       Dynamic

    2        0015.5D01.1E42        1/g5       Dynamic

    2        0015.5D01.1F43        1/g5       Dynamic

    2        0015.5D01.1F46        1/g5       Dynamic

    2        001B.218F.6EDD        1/g9       Dynamic

    2        001B.218F.775D        1/g6       Dynamic

    2        D067.E58F.CBC3        vlan 2     Management

  • Joe S586

    9 Technologist

    729 Posts

    1712

    0

    Posted November 12th, 2012 12:00

    Regarding the orginal MPIO issue, just to confirm, that you tested (the switches in question), by connecting the hosts and array iSCSI interfaces on only one switch to verify the server connects to a target volume on the array with the number of interfaces you specified with MPIO on the host?  Do this for the second switch as well.

    Also, are you using the IP address or the .iqn name of the host iSCSI initiator for the Access Control List on the Array?  The iqn name of the iSCSI initiator is preferred for MPIO.

    With that said, the next step would be to reconfigure the LACP/LAG from scratch again:

    Note: it is recommended that you physically disconnect the ports to be aggregated at one of the switches during configuration, until both are configured.  It is suggested to do this during a maintenance period if the arrays are in production.

    So the standard configuration is as follows:

    (config)# interface range ethernet 1/g19-1/g24

    (config-if)# channel-group 1 mode auto

    For a more detailed configuration try this:

    Enter configuration mode

    Select all port-channel interfaces

    console#interface range port-channel all

    To Protect from bringing down a switch or subnet, make sure the LAG is off before configuring

    console(config-if)# shutdown

    Select the ports that you are going to use in the LAG

    console(config-if)# interface range ethernet 1/g19-1/g24

    Add those ports to LAG 1, and use the LACP protocol to configure the LAG

    console(config-if)# channel-group 1 mode auto

    (adds those ports to LAG 1, and use the LACP protocol to configure the LAG)

    Select the port-channel interface you just created

    console(config-if)# int range port-channel 1

    Enable spanning-tree

    console(config-if)# no spanning-tree disable

    Enable Flow Control, which is required for iSCSI

    console(config-if)# flowcontrol on

    Keep this config open on the first switch, then open a new telnet and repeat the above on the partner switch and the LAG ports

    Then go back to the first switch and with port-channel 1 interface as the active interface, to bring up the LAG.

    console(config-if)# no shutdown

    Do the same command with port-channel 1 interface as the active interface, on the second switch to bring up the LAG

    console(config-if)# no shutdown

    console(config-if)#exit

    I would keep the swtichport mode trunk as you had in the original config:

    console# interface port-channel 1

    console(config-if)#switchport mode trunk

    console(config-if)#switchport trunk allowed vlan add 2

    console(config-if)#exit

    to verify:

    show interfaces port-channel

    show interfaces port-channel [port-channel number]

    Alternetelly you can try to set the hashing mode to the default (3) to see if the behavior is the same

    console(config)#interface port-channel l

    console(config-if-ch1)#no hashing-mode

    Beyond this, if you are still having issues (and you confirmed both switches work independently for MPIO), I would suggest that you contact the PowerConnect support team to ensure that the LACP/LAG is configured properly.

    -joe

  • 659

    0

    Posted November 17th, 2012 04:00

    Tried today all these and no joy :(

    Servers are connecting to EQL using IQN

    If I disable currently active NIC the system fails over to 2nd NIC and communication with EQL restores quickly, but it won't connect to EQL using MPIO (seeing only one of the NICs on the EQL and on the HIT)

    So the current configs look like these:

    !Current Configuration:
    !System Description "PowerConnect 6224, 3.3.4.1, VxWorks 6.5"
    !System Software Version 3.3.4.1
    !Cut-through mode is configured as disabled
    !
    configure
    vlan database
    vlan 2
    vlan routing 2 1
    exit
    hostname "punane"
    stack
    member 1 1
    exit
    ip address 192.168.1.233 255.255.255.0
    ip default-gateway 192.168.1.1
    lacp system-priority 120
    interface vlan 2
    name "iSCSI"
    routing
    ip address 192.168.234.230 255.255.255.0
    exit
    !
    interface ethernet 1/g2
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g3
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g4
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g5
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g6
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g7
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g8
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g9
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g10
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g11
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g12
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g13
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g14
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g15
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g16
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g17
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g18
    storm-control broadcast
    storm-control multicast
    spanning-tree portfast
    mtu 9216
    switchport access vlan 2
    exit
    !
    interface ethernet 1/g19
    channel-group 1 mode auto
    lacp port-priority 247
    exit
    !
    interface ethernet 1/g20
    channel-group 1 mode auto
    lacp port-priority 247
    exit
    !
    interface ethernet 1/g21
    channel-group 1 mode auto
    lacp port-priority 247
    exit
    !
    interface ethernet 1/g22
    channel-group 1 mode auto
    lacp port-priority 247
    exit
    !
    interface ethernet 1/g23
    channel-group 1 mode auto
    lacp port-priority 247
    exit
    !
    interface ethernet 1/g24
    channel-group 1 mode auto
    lacp port-priority 247
    exit
    !
    interface port-channel 1
    switchport mode trunk
    switchport trunk allowed vlan add 2
    mtu 9216
    exit

    punane#show interfaces port-channel 1

    Channel   Ports                         Hash Algorithm Type
    -------   ----------------------------- -------------------
    ch1       Active: 1/g19, 1/g20,         3
              1/g21, 1/g22, 1/g23, 1/g24