Re: Need help with LACP Trunking on 4948 switch

Thanks Kal,
LACP is checked on the F5 device. The trunk and interfaces are all up. On
the switch side "show etherchannel summary" shows that the port channel is
up, is running LACP. Everything "looks fine" but traffic flow is
unidirectional on the port channel :(

On Wed, May 28, 2014 at 6:37 PM, Kaivalya Patel <Kaivalya_at_hotmail.com>wrote:

>
> http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_mana
> gement_guide_10_1/tmos_trunks.html
>
> LACP need to be negotiated as you may know... make sure LACP is checked and
> service is running on F5...
>
> Hope this helps...
> Thanks
> Kal
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Jersey Guy
> Sent: Wednesday, May 28, 2014 5:13 PM
> To: Cisco certification
> Subject: Need help with LACP Trunking on 4948 switch
>
> Hello Experts,
> I am trying to run an LACP trunk between an old 4948 switch running 12.2
> IOS, and a new 8900 F5 LTM. The trunk comes up, all the interfaces come up,
> no errors etc....but there is zero input traffic:
>
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 6000 bits/sec, 10 packets/sec.
>
> The F5 LTM is set to flow control off. Even if I try changing the flow
> control settings, it doesn't do anything. On the switch side I see:
> input flow-control is off, output flow-control is unsupported
>
> I tried forcing the output flowcontrol to off but on this 4948, there is
> only receive/input option, nothing for transmit/send/output flowcontrol.
>
> Here is the switch config (port channel and one of the interfaces in this
> port channel):
>
> interface Port-channel5
> switchport
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 322
> switchport mode trunk
> logging event link-status
> logging event trunk-status
>
> interface GigabitEthernet1/6
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 322
> switchport mode trunk
> service-policy input DH-ING
> logging event link-status
> speed 1000
> duplex full
> tx-queue 1
> bandwidth percent 5
> tx-queue 2
> bandwidth percent 25
> tx-queue 3
> priority high
> shape percent 30
> tx-queue 4
> bandwidth percent 40
> spanning-tree portfast
> spanning-tree bpduguard enable
> channel-group 5 mode active
>
> Any help/insight will be most appreciated!
>
>
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Received on Wed May 28 2014 - 18:47:15 ART