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

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
Received on Wed Jul 08 2009 - 13:34:36 ART