Re: encapsulation failed? forus FALSE? sendself FALSE? Huh?

Is ARP getting through?

On Wed, Jul 8, 2009 at 1:02 PM, Hammer <bhmccie_at_gmail.com> wrote:

> Agreed. The debug implies the correct VLAN is getting flagged. And, What
> I'm having trouble understanding is why changing the cost of the interface
> (forcing STP down the opposite path) would allow the encapsulation to
> function.
>
> Should I be looking for errdisable ports? I'm not seeing any.....
>
> *Mar 1 03:53:21.660: IP: tableid=0, s=4.8.24.2 (local), d=4.8.24.24
> (Vlan824), routed via FIB
> *Mar 1 03:53:21.660: IP: s=4.8.24.2 (local), d=4.8.24.24 (Vlan824), len
> 100, sending
> *Mar 1 03:53:21.660: IP: s=4.8.24.2 (local), d=4.8.24.24 (Vlan824), len
> 100, output feature, Check hwidb(63), rtype 1, forus FALSE, sendself FALSE,
> mtu 0
> *Mar 1 03:53:21.660: IP: s=4.8.24.2 (local), d=4.8.24.24 (Vlan824), len
> 100, encapsulation failed
>
>
> -Hammer
>
>
>
> On Wed, Jul 8, 2009 at 1:51 PM, Darby Weaver <ccie.weaver_at_gmail.com>wrote:
>
>> If encapsulation is failing then ask yourself why it is not leaving (being
>> encapsulated) the device correctly. Why is the packet not getting
>> encapsulated in the correct vlan is a better way to put it.
>>
>>
>>
>>
>>
>>
>> On Wed, Jul 8, 2009 at 2:31 PM, Hammer <bhmccie_at_gmail.com> wrote:
>>
>>> Sorry for the confusion Academy Lab 3 is IPExperts One Week Lab
>>> Experience -
>>> Lab 3
>>>
>>> This is what I'm seeing. I understand it's a L2 issue and I understand
>>> what
>>> is occuring and why. But I can't figure out how to fix the issue w/o
>>> breaking up my VLANs into multiple MST instances or what. I jacked up the
>>> cost on the port channel to force the direct links to be used and I
>>> thought
>>> I was good to go. However, the lab specifically calls for ONE instance of
>>> spanning tree for all VLANs and I can't figure out how to force this to
>>> work.
>>>
>>>
>>> AcadLab3-Cat2(config-if)#
>>> AcadLab3-Cat2(config-if)#do siib
>>> Interface IP-Address OK? Method Status
>>> Protocol
>>> Vlan812 4.8.12.2 YES NVRAM up
>>> up
>>> Vlan824 4.8.24.2 YES NVRAM up
>>> up
>>> Vlan862 4.8.62.4 YES NVRAM up
>>> up
>>> Loopback0 12.12.12.12 YES NVRAM up
>>> up
>>> AcadLab3-Cat2(config-if)#
>>> AcadLab3-Cat2(config-if)#do sho spanni
>>>
>>> MST0
>>> Spanning tree enabled protocol mstp
>>> Root ID Priority 32768
>>> Address 0011.9368.a0d0
>>> Cost 200000
>>> Port 25 (FastEthernet0/23)
>>> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>>>
>>> Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
>>> Address 001b.d4c8.3d00
>>> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>>>
>>> Interface Role Sts Cost Prio.Nbr Type
>>> ------------------- ---- --- --------- --------
>>> --------------------------------
>>> Fa0/1 Desg FWD 200000 128.3 P2p
>>> Fa0/6 Desg FWD 200000 128.8 P2p
>>> Fa0/7 Desg FWD 200000 128.9 P2p
>>> Fa0/9 Desg FWD 200000 128.11 P2p
>>> Fa0/12 Desg FWD 2000000 128.14 Shr
>>> Fa0/13 Desg FWD 2000000 128.15 Shr
>>> Fa0/21 Altn BLK 200000 128.23 P2p
>>> Fa0/22 Altn BLK 200000 128.24 P2p
>>>
>>> Interface Role Sts Cost Prio.Nbr Type
>>> ------------------- ---- --- --------- --------
>>> --------------------------------
>>>
>>> Fa0/23 Root FWD 200000 128.25 P2p
>>> Fa0/24 Desg FWD 200000 128.26 P2p
>>> Po23 Altn BLK 600000 128.232 P2p
>>>
>>>
>>> AcadLab3-Cat2(config-if)#do sho int trunk
>>>
>>> Port Mode Encapsulation Status Native vlan
>>> Fa0/21 on 802.1q trunking 1
>>> Fa0/22 on 802.1q trunking 1
>>> Fa0/23 on 802.1q trunking 1
>>> Po23 on 802.1q trunking 1
>>>
>>> Port Vlans allowed on trunk
>>> Fa0/21 1-4094
>>> Fa0/22 1-4094
>>> Fa0/23 1-4094
>>> Po23 1-4094
>>>
>>> Port Vlans allowed and active in management domain
>>> Fa0/21
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812,824,841,843,847,857,862,864,2829
>>> Fa0/22
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812,824,841,843,847,857,862,864,2829
>>> Fa0/23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812,824,841,843,847,857,862,864,2829
>>> Po23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812,824,841,843,847,857,862,864,2829
>>>
>>> Port Vlans in spanning tree forwarding state and not pruned
>>> Fa0/21 none
>>> Fa0/22 none
>>> Fa0/23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812,824,841,843,847,857,862,864,2829
>>> Po23 none
>>> AcadLab3-Cat2(config-if)#
>>>
>>>
>>> ##########################################################################################################
>>>
>>>
>>>
>>> AcadLab3-Cat4(config)#do siib
>>> Interface IP-Address OK? Method Status
>>> Protocol
>>> Vlan824 4.8.24.4 YES NVRAM up
>>> up
>>> Vlan834 4.8.34.4 YES NVRAM up
>>> up
>>> Vlan847 4.8.47.4 YES NVRAM up
>>> up
>>> Vlan864 4.8.64.4 YES NVRAM up
>>> up
>>> Loopback0 14.14.14.14 YES NVRAM up
>>> up
>>> AcadLab3-Cat4(config)#
>>> AcadLab3-Cat4(config)#
>>> AcadLab3-Cat4(config)#do sho spannin
>>>
>>> MST0
>>> Spanning tree enabled protocol mstp
>>> Root ID Priority 32768
>>> Address 0011.9368.a0d0
>>> Cost 200000
>>> Port 25 (FastEthernet0/23)
>>> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>>>
>>> Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
>>> Address 0019.2f02.ee80
>>> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>>>
>>> Interface Role Sts Cost Prio.Nbr Type
>>> ------------------- ---- --- --------- --------
>>> --------------------------------
>>> Fa0/6 Desg FWD 200000 128.8 P2p
>>> Fa0/7 Desg FWD 200000 128.9 P2p
>>> Fa0/8 Desg FWD 200000 128.10 P2p
>>> Fa0/9 Desg FWD 200000 128.11 P2p
>>> Fa0/21 Desg FWD 200000 128.23 P2p
>>> Fa0/22 Desg FWD 200000 128.24 P2p
>>> Fa0/23 Root FWD 200000 128.25 P2p
>>> Fa0/24 Desg FWD 200000 128.26 P2p
>>> Po14 Altn BLK 600000 128.160 P2p
>>>
>>>
>>> AcadLab3-Cat4(config)#
>>> AcadLab3-Cat4(config)#
>>> AcadLab3-Cat4(config)#do sho int trunk
>>>
>>> Port Mode Encapsulation Status Native vlan
>>> Fa0/21 on 802.1q trunking 1
>>> Fa0/22 on 802.1q trunking 1
>>> Fa0/23 on 802.1q trunking 1
>>> Po14 on 802.1q trunking 1
>>>
>>> Port Vlans allowed on trunk
>>> Fa0/21 1-2888,2890-4094
>>> Fa0/22 1-2888,2890-4094
>>> Fa0/23 1-2888,2890-4094
>>> Po14 1-2888,2890-4094
>>>
>>> Port Vlans allowed and active in management domain
>>> Fa0/21
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>> Fa0/22
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>> Fa0/23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>> Po14
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>>
>>> Port Vlans in spanning tree forwarding state and not pruned
>>> Fa0/21
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>> Fa0/22
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>> Fa0/23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,824,834,841,843,847,857,862,864,2829
>>> Po14 none
>>> AcadLab3-Cat4(config)#
>>>
>>>
>>>
>>> #######################################################################################################
>>>
>>>
>>>
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#do siib
>>> Interface IP-Address OK? Method Status
>>> Protocol
>>> Vlan812 4.8.12.1 YES NVRAM up
>>> up
>>> Vlan813 4.8.13.1 YES NVRAM up
>>> up
>>> Vlan841 4.8.41.1 YES NVRAM up
>>> up
>>> Loopback0 11.11.11.11 YES NVRAM up
>>> up
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#do sho spannin
>>>
>>> MST0
>>> Spanning tree enabled protocol mstp
>>> Root ID Priority 32768
>>> Address 0011.9368.a0d0
>>> Cost 200000
>>> Port 21 (FastEthernet0/21)
>>> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>>>
>>> Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
>>> Address 0012.01b0.f100
>>> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>>>
>>> Interface Role Sts Cost Prio.Nbr Type
>>> ------------------- ---- --- --------- --------
>>> --------------------------------
>>> Fa0/1 Desg FWD 200000 128.1 P2p
>>> Fa0/2 Desg FWD 200000 128.2 P2p
>>> Fa0/4 Desg FWD 200000 128.4 P2p
>>> Fa0/5 Desg FWD 200000 128.5 P2p
>>> Fa0/11 Desg FWD 2000000 128.11 Shr
>>> Fa0/21 Root FWD 200000 128.21 P2p
>>> Fa0/22 Altn BLK 200000 128.22 P2p
>>> Fa0/23 Desg FWD 200000 128.23 P2p
>>>
>>> Interface Role Sts Cost Prio.Nbr Type
>>> ------------------- ---- --- --------- --------
>>> --------------------------------
>>>
>>> Fa0/24 Desg FWD 200000 128.24 P2p
>>> Po14 Desg FWD 600000 128.65 P2p
>>>
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#do sho int tu
>>> sho int tu
>>> % Incomplete command.
>>>
>>> AcadLab3-Cat1(config)#do sho int tru
>>>
>>> Port Mode Encapsulation Status Native vlan
>>> Fa0/21 on 802.1q trunking 1
>>> Fa0/22 on 802.1q trunking 1
>>> Fa0/23 on 802.1q trunking 1
>>> Po14 on 802.1q trunking 1
>>>
>>> Port Vlans allowed on trunk
>>> Fa0/21 1-840,842-4094
>>> Fa0/22 1-840,842-4094
>>> Fa0/23 1-840,842-4094
>>> Po14 1-840,842-4094
>>>
>>> Port Vlans allowed and active in management domain
>>> Fa0/21
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>> Fa0/22
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>> Fa0/23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>> Po14
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>>
>>> Port Vlans in spanning tree forwarding state and not pruned
>>> Fa0/21
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>> Fa0/22 none
>>> Fa0/23
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>> Po14
>>>
>>> 1,7,40-41,50,60,70,80-81,86,90,100,110,120,200,300,812-813,843,847,857,862,864,2829
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#
>>> AcadLab3-Cat1(config)#
>>>
>>>
>>>
>>> -Hammer
>>>
>>>
>>> On Wed, Jul 8, 2009 at 1:09 PM, Hammer <bhmccie_at_gmail.com> wrote:
>>>
>>> > Acadamy Lab 3. Good stuff.
>>> >
>>> > Give me a few minutes and I'll post relevant output.
>>> >
>>> > -Hammer
>>> >
>>> >
>>> >
>>> > On Wed, Jul 8, 2009 at 1:06 PM, Bryan Bartik <bbartik_at_ipexpert.com>
>>> wrote:
>>> >
>>> >> What lab is this? Spanning-tree topology shouldn't matter since only
>>> >> redundant paths are blocked. If there was a misconfiguration with MST,
>>> >> perhaps it could be an issue. Can you post relevant parts of the
>>> configs
>>> >> (SVIs, trunk ports, MST config), "sho interface trunk".
>>> >>
>>> >>
>>> >> On Wed, Jul 8, 2009 at 11:42 AM, Hammer <bhmccie_at_gmail.com> wrote:
>>> >>
>>> >>> I'm using a proctorlabs rack. S1 is a 3550. Everything is using SVIs.
>>> >>>
>>> >>> 3550 - 12.2.(44)
>>> >>> and
>>> >>> 3560s - 12.2.(25r)SEC
>>> >>>
>>> >>> The tasks of the lab require one instance of spanning tree (MST 0) so
>>> all
>>> >>> my
>>> >>> vlans are going from S2 to S1. If I tamper with the cost of the
>>> >>> interface, I
>>> >>> can bring up the S2 to S4 leg but I kill the S2 to S1 leg. So I can
>>> make
>>> >>> it
>>> >>> work but only by sacrificing another path.
>>> >>>
>>> >>> -Hammer
>>> >>>
>>> >>>
>>> >>> On Wed, Jul 8, 2009 at 12:34 PM, Ryan West <rwest_at_zyedge.com> wrote:
>>> >>>
>>> >>> > Hi,
>>> >>> >
>>> >>> > Do you have a 3550 in the mix with a physical interface that has an
>>> IP
>>> >>> > address assigned to it or is everything using SVIs? If that is the
>>> >>> case,
>>> >>> > just move the address to an SVI. Verify your VLAN allow list and
>>> check
>>> >>> your
>>> >>> > trunk links to make sure the VLAN you're trying to reach is showing
>>> up
>>> >>> in
>>> >>> > the list.
>>> >>> >
>>> >>> > The first issue that I mentioned is detailed in this post:
>>> >>> >
>>> >>> >
>>> >>> >
>>> >>>
>>> http://forum.internetworkexpert.com/ubbthreads.php/ubb/showflat/Number/14757/page/1#Post14757
>>> >>> >
>>> >>> > -ryan
>>> >>> >
>>> >>> > -----Original Message-----
>>> >>> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>>> Behalf
>>> >>> Of
>>> >>> > Hammer
>>> >>> > Sent: Wednesday, July 08, 2009 1:15 PM
>>> >>> > To: ccielab_at_groupstudy.com
>>> >>> > Subject: encapsulation failed? forus FALSE? sendself FALSE? Huh?
>>> >>> >
>>> >>> > I am trying to bring up ip over a VLAN between two switches. It's a
>>> >>> typical
>>> >>> > vendor lab with 4 switches and way too many connections.
>>> >>> >
>>> >>> > 1X = 1 wire trunking all vlans
>>> >>> > 2X = 2 wires trunking all vlans
>>> >>> > EC = EtherChannel trunking all vlans
>>> >>> >
>>> >>> > S1---------1x-----------S2
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > 2x EC EC 2x
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > | \ / |
>>> >>> > | X |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > | / \ |
>>> >>> > S3-------1X-----------S4
>>> >>> >
>>> >>> > So I need OSPF in this little party but IP first. I can ping
>>> east/west
>>> >>> > (from
>>> >>> > 1-2 and from 3-4) and I can ping north/south (from 1-3) but I
>>> cannot
>>> >>> ping
>>> >>> > from 2-4. The vlan they need is active. The vlan interface is up/up
>>> on
>>> >>> each
>>> >>> > of the switches. But I can't reach the other side of the VLAN. So
>>> first
>>> >>> I
>>> >>> > see that spanning tree is preferring my EC links. No problem. Jack
>>> up
>>> >>> the
>>> >>> > cost to oblivion and move on. Nope. Still no love. On a debug ip
>>> >>> packet, I
>>> >>> > come up with the below:
>>> >>> >
>>> >>> > BLAH BLAH BLAH, routed via FIB
>>> >>> > BLAH BLAH BLAH sending
>>> >>> > BLAH BLAH BLAH output feature, Check hwidb(63), rtype 1, forus
>>> FALSE,
>>> >>> > sendself FALSE, mtu 0
>>> >>> > BLAH BLAH BLAH encapsulation failed
>>> >>> >
>>> >>> > I only found two links on google and none for cco for the forus
>>> FALSE
>>> >>> > sendself FALSE. Both links were questions with no answers. Has
>>> anyone
>>> >>> seen
>>> >>> > this before? Is this part of my encapsulation failure? Or am I
>>> barking
>>> >>> up
>>> >>> > the wrong tree? My logic was that if I was dealing with a spanning
>>> tree
>>> >>> > issue the traffic would still exit the switch....
>>> >>> >
>>> >>> > Help?
>>> >>> >
>>> >>> >
>>> >>> >
>>> >>> > -Hammer
>>> >>> >
>>> >>> >
>>> >>> > Blogs and organic groups at http://www.ccie.net
>>> >>> >
>>> >>> >
>>> _______________________________________________________________________
>>> >>> > Subscription information may be found at:
>>> >>> > http://www.groupstudy.com/list/CCIELab.html
>>> >>>
>>> >>>
>>> >>> Blogs and organic groups at http://www.ccie.net
>>> >>>
>>> >>>
>>> _______________________________________________________________________
>>> >>> Subscription information may be found at:
>>> >>> http://www.groupstudy.com/list/CCIELab.html
>>> >>>
>>> >>>
>>> >>>
>>> >>>
>>> >>>
>>> >>>
>>> >>>
>>> >>>
>>> >>
>>> >>
>>> >> --
>>> >> Bryan Bartik
>>> >> CCIE #23707 (R&S), CCNP
>>> >> Sr. Support Engineer - IPexpert, Inc.
>>> >> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>

-- 
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net