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Switch configuration for VLANs on bonding interface

Question asked by Mohan Kumar Kannekanti on Jan 5, 2015
Latest reply on Jan 15, 2015 by lunminliang

I'm trying to configure a T1040rdb (SDK1.7) based device to have a single LAN interface by combining fm1-gb0 and fm1-gb1 interfaces.

 

I chose to use bonding interface bond0 (802.3ad mode) with fm1-gb0 and fm1-gb1 as slaves. I don't see any issue with this until I configure VLANs on bond0.

 

It is behaving very differently from VLANs on fm1-gb0/fm1-gb1.  When I put any port on Access mode, it is always sending the packets out with vlan tag 1 (it needs to be untagged) and In Trunk mode, it is sending the untagged packets (it needs to be tagged).

 

Bonding Interface Configuration:

 

root@t1040rdb:/sys/class/net/bond0/bonding# cat mode

802.3ad 4

root@t1040rdb:/sys/class/net/bond0/bonding# cat oh_en

LAG:[CPU 0 ln 1650 fn export_oh_port_info_to_ceetm] - This oh port mapped to bond has channel:0x80a

LAG:[CPU 0 ln 1652 fn export_oh_port_info_to_ceetm] - fman_dcpid:0x0, oh_offset:0x83000, cell-index:1

LAG:[CPU 0 ln 286 fn bonding_show_oh_enable] - offline port channel:2058

1

root@t1040rdb:/sys/class/net/bond0/bonding# cat oh_needed_for_hw_distribution

fman0-oh@2

root@t1040rdb:/sys/class/net/bond0/bonding# cat slaves     

fm1-gb0 fm1-gb1

root@t1040rdb:/sys/class/net/bond0/bonding# ethtool -k bond0

Features for bond0:

rx-checksumming: off [fixed]

tx-checksumming: off

        tx-checksum-ipv4: off [fixed]

        tx-checksum-ip-generic: off

        tx-checksum-ipv6: off [fixed]

        tx-checksum-fcoe-crc: off [fixed]

        tx-checksum-sctp: off [fixed]

scatter-gather: off

        tx-scatter-gather: off

        tx-scatter-gather-fraglist: off

tcp-segmentation-offload: off

        tx-tcp-segmentation: off [requested on]

        tx-tcp-ecn-segmentation: off [requested on]

        tx-tcp6-segmentation: off [requested on]

udp-fragmentation-offload: off [fixed]

generic-segmentation-offload: off

generic-receive-offload: on

large-receive-offload: off

rx-vlan-offload: on

tx-vlan-offload: on

ntuple-filters: off [fixed]

receive-hashing: off [fixed]

highdma: on

rx-vlan-filter: on

vlan-challenged: off [fixed]

tx-lockless: on [fixed]

netns-local: off [fixed]

tx-gso-robust: off [fixed]

tx-fcoe-segmentation: off [fixed]

tx-gre-segmentation: off [fixed]

tx-udp_tnl-segmentation: off [fixed]

tx-mpls-segmentation: off [fixed]

fcoe-mtu: off [fixed]

tx-nocache-copy: off [requested on]

loopback: off [fixed]

rx-fcs: off [fixed]

rx-all: off [fixed]

tx-vlan-stag-hw-insert: off [fixed]

rx-vlan-stag-hw-parse: off [fixed]

rx-vlan-stag-filter: off [fixed]

hw-qdisc: off [fixed]

hw-accel-mq: off [fixed]

 

VLAN Configuration:

 

root@t1040rdb:~# l2switch-cfg vlan show

Printing all VLANs...

VLAN 1: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

VLAN 10: 5, 9,  /* LAN host is connected to Port 5 */

 

root@t1040rdb:~# l2switch-cfg port all vlan show

Vlan port-based configuration (port - VID):

0 - VID 1

1 - VID 1

2 - VID 1

3 - VID 1

4 - VID 1

5 - VID 1      /* Configured as 1 for Trunk mode and 10  for Access Mode */

6 - VID 1

7 - VID 1

8 - VID 1

9 - VID 1

 

root@t1040rdb:/sys/class/net/bond0/bonding# l2switch-cfg set lag no 1 members 8 9

        LAG NO 1 members: 8 9

 

Packet capture on LAN device

 

Access Mode:

No.     Time           Source                Destination           Protocol Length Info

      2 0.018593000    54:39:68:03:e8:62     68:05:ca:15:89:32     ARP      64     192.168.2.144 is at 54:39:68:03:e8:62

 

Frame 2: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0

Ethernet II, Src: 54:39:68:03:e8:62 (54:39:68:03:e8:62), Dst: 68:05:ca:15:89:32 (68:05:ca:15:89:32)

    Destination: 68:05:ca:15:89:32 (68:05:ca:15:89:32)

    Source: 54:39:68:03:e8:62 (54:39:68:03:e8:62)

    Type: 802.1Q Virtual LAN (0x8100)

802.1Q Virtual LAN, PRI: 0, CFI: 0, ID: 1

    000. .... .... .... = Priority: Best Effort (default) (0)

    ...0 .... .... .... = CFI: Canonical (0)

    .... 0000 0000 0001 = ID: 1

    Type: ARP (0x0806)

    Padding: e862000000000000000000000000

    Trailer: 00000000

Address Resolution Protocol (reply)

 

Trunk Mode:

No.     Time           Source                Destination           Protocol Length Info

     22 83.259189000   54:39:68:03:e8:62     68:05:ca:15:89:32     ARP      60     192.168.2.144 is at 54:39:68:03:e8:62

 

Frame 22: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 0

Ethernet II, Src: 54:39:68:03:e8:62 (54:39:68:03:e8:62), Dst: 68:05:ca:15:89:32 (68:05:ca:15:89:32)

    Destination: 68:05:ca:15:89:32 (68:05:ca:15:89:32)

    Source: 54:39:68:03:e8:62 (54:39:68:03:e8:62)

    Type: ARP (0x0806)

    Padding: e86200000000000000000000000000000000

Address Resolution Protocol (reply)

 

Can you guys please help me with this VLAN configuration??

 

Also, do you think any other better approach to achieve single interface for whole switch?? Bridging will be our last choice to go ahead with.

 

Thanks,

Mohan.

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