[c-nsp] Input errors between PE - P

[Kike]

Well... I'm a little lost with the MTU concept here... because I
configured two different MTUs, but I don't understand which exactly is
the function of the following commands:

tag-switching mtu 1508  <-- P Router

mtu 1508     <-- PE Router
ip mtu 1500  <-- PE Router

IOS images:

P   <-- s72033-pk9sv-mz.122-18.SXD6.bin
PE <-- c7300-k91p-mz.122-27.SBC5.bin

Here are "sh run int" outputs

P#sh run int gi1/1
Building configuration...

Current configuration : 458 bytes
!
interface GigabitEthernet1/1
 description LAN-1
 ip address 10.9.128.161 255.255.255.248
 ip pim sparse-mode
 ip ospf network point-to-point
 wrr-queue bandwidth 56 43
 wrr-queue queue-limit 28 36
 wrr-queue random-detect min-threshold 2 100 100
 wrr-queue random-detect max-threshold 2 100 100
 tag-switching mtu 1508
 tag-switching ip
 mls qos trust dscp
  random-detect
  random-detect exponential-weighting-constant 9
end


PE#sh run int gi0/0
Building configuration...

Current configuration : 285 bytes
!
interface GigabitEthernet0/0
 description "LAN-1"
 mtu 1508
 ip address 10.9.128.162 255.255.255.248
 ip mtu 1500
 ip pim sparse-mode
 ip ospf network point-to-point
 negotiation auto
 mpls ip
 no clns route-cache
 service-policy output CORE-P-PE-LOCAL
end

Thanks,

On 11/7/07, Simon Lockhart <simon at slimey.org> wrote:
> On Wed Nov 07, 2007 at 09:00:19AM +0100, Kike wrote:
> > PE#sh int gi0/0
> > GigabitEthernet0/0 is up, line protocol is up
> > MTU 1508 bytes, BW 1000000 Kbit, DLY 10 usec,
> >
> > PE#sh int gi2/0
> > GigabitEthernet2/0 is up, line protocol is up
> > MTU 1508 bytes, BW 1000000 Kbit, DLY 10 usec,
> >
> > P#sh int gi1/1
> > GigabitEthernet1/1 is up, line protocol is up (connected)
> > MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
> >
> > P#sh int gi2/1
> > GigabitEthernet2/1 is up, line protocol is up (connected)
> > MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
>
> The errors are occuring on the interfaces with the smaller MTU - could this
> be
> the problem?
>
> Simon
> --
> Simon Lockhart | * Sun Server Colocation * ADSL * Domain Registration *
>    Director    |    * Domain & Web Hosting * Internet Consultancy *
>   Bogons Ltd   | * http://www.bogons.net/  *  Email: info at bogons.net  *
>


-- 
Kike


"the world is not a gift from our parents but a loan from our
children". Kenyan proverb.