Some questions about Link Aggregation and Failover

[bo wang]

Thank your for reply.
 First,I think the Link Aggregation can't support too much ports
aggregation.So I change the configure, just get together two
ports.Below are configuration information of c3750:
Switch#show eth 1 sum
Flags:  D - down        P - bundled in port-channel
       I - stand-alone s - suspended
       H - Hot-standby (LACP only)
       R - Layer3      S - Layer2
       U - in use      f - failed to allocate aggregator

       M - not in use, minimum links not met
       u - unsuitable for bundling
       w - waiting to be aggregated
       d - default port


Number of channel-groups in use: 2
Number of aggregators:           2

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(SU)         LACP      Gi1/0/1(P)  Gi1/0/2(P)


Switch#show lacp neighbor
Flags:  S - Device is requesting Slow LACPDUs
       F - Device is requesting Fast LACPDUs
       A - Device is in Active mode       P - Device is in Passive mode

Channel group 1 neighbors

Partner's information:

                 LACP port                        Admin  Oper   Port    Port
Port      Flags   Priority  Dev ID          Age    key    Key    Number  State
Gi1/0/1   SA      32768     0010.18c0.af20   4s    0x0    0x250  0x3     0x3D
Gi1/0/2   SA      32768     0010.18c0.af20   4s    0x0    0x250  0x4     0x3D

Channel group 2 neighbors

Partner's information:

                 LACP port                        Admin  Oper   Port    Port
Port      Flags   Priority  Dev ID          Age    key    Key    Number  State
Gi1/0/13  SA      32768     0010.18c0.af7c   1s    0x0    0x250  0x3     0x3D
Gi1/0/14  SA      32768     0010.18c0.af7c   1s    0x0    0x250  0x4     0x3D


Switch#show lacp neighbor detail
Flags:  S - Device is requesting Slow LACPDUs
       F - Device is requesting Fast LACPDUs
       A - Device is in Active mode       P - Device is in Passive mode

Channel group 1 neighbors

Partner's information:


         Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Gi1/0/1   32768,0010.18c0.af20  0x3              13s        SA

         LACP Partner         Partner         Partner
         Port Priority        Oper Key        Port State
         32768                0x250           0x3D

         Port State Flags Decode:
         Activity:   Timeout:   Aggregation:   Synchronization:
         Active      Long       Yes            Yes

         Collecting:   Distributing:   Defaulted:   Expired:
         Yes           Yes             No           No

         Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Gi1/0/2   32768,0010.18c0.af20  0x4              14s        SA

         LACP Partner         Partner         Partner
         Port Priority        Oper Key        Port State
         32768                0x250           0x3D

         Port State Flags Decode:
         Activity:   Timeout:   Aggregation:   Synchronization:
         Active      Long       Yes            Yes

         Collecting:   Distributing:   Defaulted:   Expired:
         Yes           Yes             No           No

Channel group 2 neighbors

Partner's information:


         Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Gi1/0/13  32768,0010.18c0.af7c  0x3              15s        SA

         LACP Partner         Partner         Partner
         Port Priority        Oper Key        Port State
         32768                0x250           0x3D

         Port State Flags Decode:
         Activity:   Timeout:   Aggregation:   Synchronization:
         Active      Long       Yes            Yes

         Collecting:   Distributing:   Defaulted:   Expired:
         Yes           Yes             No           No

         Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Gi1/0/14  32768,0010.18c0.af7c  0x4              16s        SA

         LACP Partner         Partner         Partner
         Port Priority        Oper Key        Port State
         32768                0x250           0x3D

         Port State Flags Decode:
         Activity:   Timeout:   Aggregation:   Synchronization:
         Active      Long       Yes            Yes

         Collecting:   Distributing:   Defaulted:   Expired:
         Yes           Yes             No           No

2012/3/7 bo wang <wowopla at gmail.com>:
> Hello:
>      Recently I want to do Link Aggregation for increasing the
> speed. I use a Cisco 3750 Switche and two IBM Server R       with BSD
> 9.0 .I do link aggregation According to this page.
>      http://www.freebsd.org/doc/en/books/handbook/network-aggregation.html
>      I use LACP .But when i have done ,the link aggregation  only can
> do Failover  .It cann't increase the  speed. What is the
> problem?Detailed configuration as follows
>
> in the BSD9.0  /etc/rc.conf
> hostname="bbc04"
> ifconfig_bce2="up"
> ifconfig_bce3="up"
> ifconfig_bce4="up"
> ifconfig_bce5="up"
> ifconfig_bce6="up"
> ifconfig_bce7="up"
> cloned_interfaces="lagg0"
> ifconfig_lagg0="laggproto loadbalance laggport bce2 laggport bce3
> laggport bce4 laggport bce5 laggport bce6 laggport bce7"
> ipv4_addrs_lagg0="172.16.60.64/16"
> defaultrouter="172.16.0.1"
> sshd_enable="YES"
> pureftpd_enable="YES"
> # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
> dumpdev="NO"
>
> the Cisco 3750 configure
> interface range gigabitEthernet 1/0/1-6
> channel-proto lacp
> channel-group 1 mode active
>
>
> interface range gigabitEthernet 1/0/13-18
> channel-proto lacp
> channel-group 2 mode active