ATOM Cisco 7206VXR (NPE-G2)

Unanswered Question
May 27th, 2007

Dears

I try to configure ATOM in two routers 7206VXR (NPE-G2) with IOS c7200p-advipservicesk9-mz.124-11.T1.bin as the following :

-first router

interface ATM2/0.100 point-to-point

no snmp trap link-status

pvc 0/1234 l2transport

encapsulation aal5

xconnect 10.1.1.1 50 encapsulation mpls

-second router

interface ATM2/0.100 point-to-point

no snmp trap link-status

pvc 0/1234 l2transport

encapsulation aal5

xconnect 10.1.1.2 50 encapsulation mpls

But vc is down !!!

Local intf Local circuit Dest address VC ID Status

------------- -------------------------- --------------- ---------- ----------

AT2/0.100 ATM AAL5 0/100 10.1.1.1 50 DOWN

I need to know if 7206VXR (NPE-G2) support ATOM configuration or not

----------------------------------

I made the same configuration in 2 routers Cisco 7206VXR (NPE-G1) with IOS c7200-js-mz.123-8.T5.bin and vc is up

Local intf Local circuit Dest address VC ID Status

------------- -------------------- --------------- ---------- ----------

AT1/0.300 ATM AAL5 2/300 172.21.1.3 300 UP

Please advice

Thank you

I have this problem too.
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Harold Ritter Sun, 05/27/2007 - 09:39

Mohamed,

I should have asked for both sides to start with. Can you include the same command for the other PE.

Thanks,

Harold Ritter Sun, 05/27/2007 - 12:43

Mohamed,

Are these two routers directly connected? Can you do a "show mpls ldp bind 172.21.1.40 32" on PE1, a "show mpls ldp bind 172.21.1.30 32" on PE2 and a "show mpls ldp nei" on both.

Regards,

Harold Ritter Sun, 05/27/2007 - 13:37

Mohamed,

Could you include the "show mpls ldp bin 172.21.1.40 32" from PE1.

Also include a "show ip route 172.21.1.40" from PE1 and "show ip route 172.21.1.30" from PE2.

Regards,

mrcomm2000 Sun, 05/27/2007 - 13:46

Dear Sir

Please check the below informations

PE1#show mpls ldp bin 172.21.1.40 32

tib entry: 172.21.1.40/32, rev 1788

local binding: tag: 717

remote binding: tsr: 172.21.1.1:0, tag: 934

remote binding: tsr: 172.21.1.3:0, tag: 206

remote binding: tsr: 172.21.1.40:0, tag: imp-null

remote binding: tsr: 172.21.1.8:0, tag: 1680

PE1#show ip route 172.21.1.40

Routing entry for 172.21.1.40/32

Known via "ospf 201", distance 110, metric 5, type intra area

Last update from 172.21.2.29 on Serial1/1, 11:49:38 ago

Routing Descriptor Blocks:

* 172.21.2.29, from 172.21.1.40, 11:49:38 ago, via Serial1/1

Route metric is 5, traffic share count is 1

172.21.2.25, from 172.21.1.40, 11:49:38 ago, via Serial1/0

Route metric is 5, traffic share count is 1

PE2#show ip route 172.21.1.30

Routing entry for 172.21.1.30/32

Known via "ospf 201", distance 110, metric 5, type intra area

Last update from 172.21.2.133 on Serial4/1, 11:50:12 ago

Routing Descriptor Blocks:

172.21.2.133, from 172.21.1.30, 11:50:12 ago, via Serial4/1

Route metric is 5, traffic share count is 1

* 172.21.2.129, from 172.21.1.30, 11:50:12 ago, via Serial4/0

Route metric is 5, traffic share count is 1

regards,

Rahul Kachalia Sun, 05/27/2007 - 15:06

not sure if I followed complete thread properly to understand which VC (0/100 or 0/1234?) we are troubleshooting. From some of the outputs PVC, VCID and Remotepeer ID is vs cfgs are different. If its possible pls provide following additional outputs to debug further from both side of PE & do u have ppt/visio topology describing your network?!...

s run

s int atx/y

s mpls l2 vc det

s mpls for detail

s mpls int

ping mpls ipv4 verbose

Turn on following debugs ONLY if its not going to impact your network, if yes then only provide show cmds output and ignore following request:

- debug mpls l2 vc event

- debug mpls l2 sig event

- debug mpls l2 sig fsm

int atmx/y.z

sh

no sh

thanks,

rahul.

Harold Ritter Sun, 05/27/2007 - 15:30

Mohamed,

Can you do a "sh ip cef 172.21.1.40" on PE1 and a "show ip cef 172.21.1.30" on PE2.

Regards,

Harold Ritter Sun, 05/27/2007 - 16:48

Mohamed,

I have a feeling the issue is that CEF is not enabled on one of the two PEs, hence me asking for the "show ip cef". That is the only thing I can see that would be causing the VC to stay down even though the labels (IGP and VC labels) are being exhanged properly. Make sure you enable CEF on both PEs.

Hope this helps,

mrcomm2000 Sun, 05/27/2007 - 23:18

Dear sir

IP CEF enabled in the two routers

PE2#show ip cef 172.21.1.40

172.21.1.40/32, version 11166, epoch 0, per-packet sharing

0 packets, 0 bytes

tag information set, shared

local tag: 717

via 172.21.2.29, Serial1/1, 420 dependencies

traffic share 1

next hop 172.21.2.29, Serial1/1

valid adjacency

tag rewrite with Se1/1, point2point, tags imposed: {934}

via 172.21.2.25, Serial1/0, 426 dependencies

traffic share 1, current path

next hop 172.21.2.25, Serial1/0

valid adjacency

tag rewrite with Se1/0, point2point, tags imposed: {934}

0 packets, 0 bytes switched through the prefix

tmstats: external 0 packets, 0 bytes

internal 0 packets, 0 bytes

PE1#show ip cef 172.21.1.30

172.21.1.30/32, version 822, epoch 0, per-packet sharing

0 packets, 0 bytes

tag information set, shared

local tag: 54

via 172.21.2.133, Serial4/1, 287 dependencies

traffic share 1, current path

next hop 172.21.2.133, Serial4/1

valid adjacency

tag rewrite with Se4/1, point2point, tags imposed: {128}

via 172.21.2.129, Serial4/0, 285 dependencies

traffic share 1

next hop 172.21.2.129, Serial4/0

valid adjacency

tag rewrite with Se4/0, point2point, tags imposed: {128}

0 packets, 0 bytes switched through the prefix

tmstats: external 0 packets, 0 bytes

internal 0 packets, 0 bytes

regards,

Harold Ritter Mon, 05/28/2007 - 07:33

Mohamed,

Interesting. Could you please provide the full config for both PEs.

Regards,

pankajkulkarni Mon, 05/28/2007 - 08:17

Hi Mohammed,

Could you try with the advance enterprise feature set.

The "Feature Navigator" tool suggests ATOM" AAL5oMPLS is suggested with either Enterprise or Service Provider feature set.

HTH,

Pankaj

Harold Ritter Mon, 05/28/2007 - 09:39

Mohamed,

Could you also provide us with a "show xconnect all detail"

Regards,

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