Re: Need help with LACP Trunking on 4948 switch

From: Jersey Guy <guy.jersey_at_gmail.com>
Date: Wed, 28 May 2014 19:28:12 -0400

Thanks Kal, Ryan. I test the flow by pinging the self IP on the F5, which
I'm not able to. When I take off LACP, I can ping the self IP. STP is not
running on the F5 interfaces.

I am running a single vlan on this trunk. So on the F5 side, I have set the
same vlan on the trunk but the trunk is "untagged". Does it have to be
tagged even if there's a single vlan active on the trunk?

I am not able to get the bigip_base.conf right now but will do so tomorrow
during business hours.

thanks for the help!!

On Wed, May 28, 2014 at 7:07 PM, Ryan West <rwest_at_zyedge.com> wrote:

> I assume you've set your vlan's to the new trunk to send traffic through
> the bundle. Can you post your bigip_base.conf with relevant data?
>
> I have this same config in multiple environments, one with an 8900 as
> well. I'll share that section when I'm near a computer again.
>
> Sent from handheld.
>
> > On May 28, 2014, at 6:52 PM, "Jersey Guy" <guy.jersey_at_gmail.com> wrote:
> >
> > 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!
> >>
> >>
> >> Blogs and organic groups at http://www.ccie.net
> >>
> >> _______________________________________________________________________
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> >
> >
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> >
> > _______________________________________________________________________
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Received on Wed May 28 2014 - 19:28:12 ART

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