From: Hobbs (deadheadblues@gmail.com)
Date: Wed Nov 12 2008 - 21:30:16 ARST
Hey Rich,
CEF was disabled on R5, that was my issue. I didn't even think about it
being a CEF issue...but that's about as basic as it gets. I read all the
time "you must have CEF enabled...etc,etc". And I always think "no kidding,
its enabled by default on all the routers I configure"
lesson learned, i should never forget that again. :)
On Wed, Nov 12, 2008 at 4:21 PM, Rich Collins <nilsi2002@gmail.com> wrote:
>
> So you definitely have under the global configuration: mpls traffic-eng
> tunnels?
>
> What does sh mpls traffic-eng topology and tunnels show? Can you show us
> what is configured under router ospf on R5
>
> -Rich
>
>
> On Tue, Nov 11, 2008 at 6:51 PM, Hobbs <deampls traffic-eng tunnels
> dheadblues@gmail.com> wrote:
>
>> Hello,
>>
>> I have:
>>
>> R1----R2----R5
>>
>> I have a tunnel that is up from R1 to R2 yet the tunnel to R2 to R5 (both
>> ways) won't come up. I believe it is because R5 is not sending/receiving
>> RSVP messages. I an using loopbacks as tunnel endpoints, here are some
>> show
>> commands:
>>
>> *Config for s2/0*
>>
>> R5#show run int s2/0
>> interface Serial2/0
>> ip address 192.168.25.5 255.255.255.0
>> mpls traffic-eng tunnels
>> fair-queue 64 256 37
>> ip rsvp bandwidth 1000 1000
>> end
>>
>> *NO RSVP messages:*
>>
>> R5#show ip rsvp counters summary
>> All Interfaces Recv Xmit Recv
>> Xmit
>> Path 0 0 Resv 0
>> 0
>> PathError 0 0 ResvError 0
>> 0
>> PathTear 0 0 ResvTear 0
>> 0
>> ResvConfirm 0 0 ResvTearConfirm 0
>> 0
>> UnknownMsg 0 0 Errors 0
>> 0
>> R5#
>>
>> *Tunnel config:*
>>
>> R5#show run int tun 2
>> interface Tunnel2
>> ip unnumbered Loopback0
>> tag-switching ip
>> tunnel destination 10.0.0.2
>> tunnel mode mpls traffic-eng
>> tunnel mpls traffic-eng path-option 1 dynamic
>> end
>>
>> R5#show mpls traffic-eng link-management int s2/0
>> System Information::
>> Links Count: 2
>> Link ID:: Se2/0 (192.168.25.5)
>> Link Status:
>> Physical Bandwidth: 1544 kbits/sec
>> Max Res Global BW: 1000 kbits/sec (reserved: 0% in, 0% out)
>> Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
>> MPLS TE Link State: MPLS TE on, RSVP on, admin-up
>> Inbound Admission: allow-all
>> Outbound Admission: allow-if-room
>> Admin. Weight: 64 (IGP)
>> IGP Neighbor Count: 0
>> Flooding Status for each configured area [1]:
>> IGP Area[1]: ospf area 0: not flooded
>> (Reason: Link has no IGP adjacencies for this area)
>> R5#
>>
>> R5#show ip ospf neighbor s2/0
>> Neighbor ID Pri State Dead Time Address
>> Interface
>> 10.0.0.2 1 FULL/ - 00:00:37 192.168.25.2
>> Serial2/0
>>
>> Any idea why the 4th command shows 0 as the IGP neighbor count?
>>
>> btw, I am following the troubleshooting chapter in Traffic Engineering
>> with
>> MPLS book. I have removed all constraints except dynamic path option and
>> shut down all redundant links.
>>
>> Thanks,
>>
>>
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>>
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