Re: [load balancing] LACP and Big-IP9.0

From: <danoIZZATmx.cryptonizer.com>
Date: Fri Apr 15 2005 - 02:07:29 EDT

I don't have any bigips with LACP in failover pairs but run a number of
5100 singles with LACP to Cisco 3750 switches. Below is a config from our
new 6400 attached to a Cat6509. Not in production yet.

On BigIP

trunk vlan-50 {
   lacp enable
   interface 2.3 2.4
}

[root@bigip1:Active] config # b trunk vlan-50 show
TRUNK vlan-50 00:01:D7:1E:95:20 LACP ACTIVE
| (pkts,bits,errs) in = (1.164M, 985.0M, 0), out = (112128, 134.0M, 0)
| (drop,mcast) in = (29, 1.160M), out = (0, 109714) coll = 0
+-> INTERFACE 2.3 00:01:D7:1E:95:15 ENABLED UP MTU 1500
| | media auto (1000baseFX full) Trunk vlan-50 Aggregation attached
| | flow control tx rx (rx)
| | (pkts,bits,errs) in = (978586, 637.7M, 0), out = (54874, 56.17M, 0)
| | (drop,mcast) in = (1, 974576), out = (0, 54871) coll = 0
+-> INTERFACE 2.4 00:01:D7:1E:95:16 ENABLED UP MTU 1500
    | media auto (1000baseFX full) Trunk vlan-50 Aggregation attached
    | flow control tx rx (rx)
    | (pkts,bits,errs) in = (185627, 347.2M, 0), out = (57254, 77.84M, 0)
    | (drop,mcast) in = (28, 185428), out = (0, 54843) coll = 0

[root@bigip1:Active] config # b trunk vlan-50 lacp show
TRUNK vlan-50 - LACP enabled ACTIVE long timeout
| Actor: SysID 00:01:D7:1E:95:02 Priority 38146 Key 2
| Partner: SysID 00:D0:01:48:AC:00 Priority 32768 Key 3
+-> INTERFACE 2.3 Aggregation attached
| | Actor: PortID 02030203 Key 2 up
| | Partner: PortID 80000701 Key 3 up
+-> INTERFACE 2.4 Aggregation attached
    | Actor: PortID 02040204 Key 2 up
    | Partner: PortID 80000702 Key 3 up
[root@bigip1:Active] config #

On Cat6509

interface GigabitEthernet7/1
 description bigip1 internal (2.3)
 no ip address
 switchport
 switchport access vlan 50
 switchport mode access
 spanning-tree portfast
 channel-group 3 mode active
!
interface GigabitEthernet7/2
 description bigip1 internal (2.4)
 no ip address
 switchport
 switchport access vlan 50
 switchport mode access
 spanning-tree portfast
 channel-group 3 mode active

> Hi,
>
> 1) Has anyone encountered any issues whereby a reboot of an active
> Big-IP 6400 unit (running release 9.0.4) causes another etherchannel
> (aka bigip trunk) on the standby bigip unit to flap as well ? I get this
> almost consistent behaviour when both these devices are connected to a
> 65K CatOS switch with LACP configured.
>
> 2) Incidentally, can anyone email me thieir working configuraiton of a
> LACP etherchannel between a Big-IP 6400 switch and Cisco 65K CatOS ? The
> help documentation and online documentation is not very clear for fields
> like LACP timeout etc on the Big-IP.
>
> Regards,
> Claret

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Received on Fri Apr 15 03:14:07 2005

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