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Cisco 7609-S - ME3600 / xconnect up - ac down

avosdo
Level 1
Level 1

‎04-08-2013 03:28 AM

Hello

We are trying to set up a pseudowire connection between a Cisco 7609-S and ME3600.

When xconnect is applied on physical interface or service instance there is no problem.

When we are moving to interface vlan xconnect is up but ac is down.

Cisco 7609 is using a 7600-ES+20G3CXL gigabit port NOT RSP720 and IOS version c7600rsp72043-advipservicesk9-mz.153-1.S.bin

ME3600 is using IOS version me360x-universalk9-mz.153-1.S1.bin

We have successfully set up the same scenario with 2 ME3600.

Please check attached files for sample configurations and show - debugs commands.

Regards

Antonis.

Labels:
15357881-xconn on vlan inter+sh comands.txt.zip
15357990-xconn on physical inter+sh comands.txt.zip
15357991-debugs.txt.zip
0 Helpful
13 Replies 13

avosdo
Level 1
Level 1

‎04-08-2013 04:42 AM

I forgot to mention that in 7609-S show mpls forwarding-table Outgoing interface is none.

Network Topology

7609----------ME3600---------ME3600

   |                                                       |

   |                                                       |

interface                                        interface

vlan20                                             vlan20

0 Helpful

Vivek Ruhil
Cisco Employee
Cisco Employee

‎04-08-2013 05:18 AM

Hi Antonis

Could you try with any other encapsulation rather than the "default" on 7600 because it looks like that 7600 AC is not showing up probably because of this.

Regards

0 Helpful

avosdo
Level 1
Level 1
In response to Vivek Ruhil

‎04-08-2013 05:41 AM

Hi

I have change the configuration in both with the same results

ME3600

interface GigabitEthernet0/23

switchport trunk allowed vlan none

switchport mode trunk

service instance 20 ethernet  

encapsulation dot1q 20  

rewrite ingress tag pop 1 symmetric  

bridge-domain 20

interface Vlan20

no ip address

xconnect 172.16.0.1 20 encapsulation mpls

Cisco 7609-S

interface GigabitEthernet1/18

description TEST_MPLS_PSEUDOWIRE

no ip address

load-interval 30

speed 1000

no cdp enable

service instance 20 ethernet  

encapsulation dot1q 20  

rewrite ingress tag pop 1 symmetric  

bridge-domain 20

interface Vlan20

no ip address

xconnect 172.18.0.17 20 encapsulation mpls

Antonis.

0 Helpful

Muhammad Thanveer
Level 5
Level 5
In response to avosdo

‎04-08-2013 10:09 PM

Hello Antonis,

Please look in to this area.

http://www.cisco.com/en/US/docs/routers/7600/install_config/ES40_config_guide/es40_chap4.html#wp1561204

I think you already have done with the above problem here

http://www.gossamer-threads.com/lists/cisco/nsp/169757

Regards
Thanveer
"Everybody is genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is a stupid."

0 Helpful

avosdo
Level 1
Level 1
In response to Muhammad Thanveer

‎04-10-2013 02:31 AM

Cisco 7906 have 2 mpls enabled interfaces one L3 and one L2+SVI. The label-switched path was through L2 interface. When we route the path through L3 core facing mpls interface the pseudowire was came up.

Our initial thought for bringing up the pseudowire through an SVI was to replace the following scenario

7609 <---------- ME3600-B <--------- ME3600-A <------- BGP SESSION

We have a BGP session with a carrier delivered on ME3600-A. Because ME3600 is not able to carry bgp table we have create vlan 100 and we and made the gigabit port access to vlan 100.

ME3600-A

vlan 100

name BGP_PEERING

interface GigabitEthernet0/1

description BGP_PEERING

switchport access vlan 100

ME3600-A and ME3600-B are interconnected with a trunk port.

ME3600-B

vlan 100

name BGP_PEERING

ME3600-B and 7609 are also interconnected with a trunk port

CISCO 7609-S

vlan 100

name BGP_PEERING

interface Vlan128

description BGP_PEERING

ip address XXX.XXX.XXX.XXX 255.255.255.248

So the vlan 100 travels all the way from ME3600-A to 7609 and the bgp session is running on 7609.

I am trying to say is possible to replace the vlan with EoMPLS ?

Best Regards

Antonis.

0 Helpful

Vivek Ruhil
Cisco Employee
Cisco Employee
In response to avosdo

‎04-10-2013 02:42 AM

Yes you can do that by enabling MPLS on the 3600's and on 7600 using routed PW concept.

So, your config on 7609 will look like:

interface Vlan128

description BGP_PEERING

ip address XXX.XXX.XXX.XXX 255.255.255.248

xconnect encapsulation mpls

!

On the ME3600-A simply use EVC and run a EoMPLS.

0 Helpful

avosdo
Level 1
Level 1
In response to Vivek Ruhil

‎04-10-2013 07:06 AM

For some reason ME3600 is sending packets but is not receiving

3600#show mpls l2transport vc 250 detail

VC statistics:    

     transit packet totals: receive 0, send 593    

     transit byte totals:  receive 0, send 45388    

     transit packet drops:  receive 0, seq error 0, send 0

7609#show mpls l2transport vc 250 detail

VC statistics

     transit packet totals: receive 1030, send 0    

     transit byte totals:  receive 63730, send 0    

     transit packet drops:  receive 0, seq error 0, send 0

7609 configuration

interface Vlan250

ip address 192.168.33.2 255.255.255.0

xconnect 172.18.0.17 250 encapsulation mpls

3600 configuration

interface GigabitEthernet0/23

switchport trunk allowed vlan none

switchport mode trunk

service instance 250 ethernet  

encapsulation untagged  

bridge-domain 250

interface Vlan250

no ip address

xconnect 172.16.0.0 250 encapsulation mpls

I have tried several ways on 3600 xconnect under L3 physical interface, xconnect under L2 service instance physical interface but same behavior in all cases.

Any ideas ?

0 Helpful

Vivek Ruhil
Cisco Employee
Cisco Employee
In response to avosdo

‎04-10-2013 07:33 AM

On ME 3600 use xconnect under the service instance and also if possible try a tagged encapsulation.

Also on 7600 what is the mpls enabled interface. Is it a Vlan ?

0 Helpful

Vivek Ruhil
Cisco Employee
Cisco Employee
In response to Vivek Ruhil

‎04-10-2013 07:36 AM

With tagged encap you muat also use "rewrite ingress tag pop 1 symmetric"

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avosdo
Level 1
Level 1
In response to Vivek Ruhil

‎04-12-2013 12:59 AM

I cannot add tagget encapsulation since traffic from carrier will be untagget.

Regards

Antonis.

0 Helpful

avosdo
Level 1
Level 1
In response to avosdo

‎04-15-2013 12:53 AM

Any suggestions?

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avosdo
Level 1
Level 1
In response to avosdo

‎04-15-2013 05:40 AM

Lets make a recap

HOST(192.168.33.2/24)----->ME3600------>7609(SVI:192.168.33.1/24)

ME3600

vlan 250

name RPW

      

interface GigabitEthernet0/23

switchport trunk allowed vlan none

switchport mode trunk

service instance 250 ethernet  

encapsulation untagged  

bridge-domain 250

interface Vlan250

no ip address

xconnect 172.16.0.0 250 encapsulation mpls

7609

vlan 250

name RPW

interface Vlan250

ip address 192.168.33.2 255.255.255.0

xconnect 172.18.0.17 250 encapsulation mpls

Keep in mind 7609 has only one core facing L3 interface.

From mpls l2 detailed

7609

VC statistics:    

transit packet totals: receive 29, send 0    

transit byte totals:  receive 4252, send 0    

transit packet drops:  receive 0, seq error 0, send 0

3600

VC statistics:    

transit packet totals: receive 0, send 31    

transit byte totals:  receive 0, send 4496    

transit packet drops:  receive 0, seq error 0, send 0

Packet recieved from 3600 no packets send from 7609.

Any ideas? I have read that this is a working scenario.

0 Helpful

Vivek Ruhil
Cisco Employee
Cisco Employee
In response to avosdo

‎04-28-2013 10:14 PM

Hi

On ME3600, instead of the configuration you have could you try the below:

interface GigabitEthernet0/23

switchport trunk allowed vlan none

switchport mode trunk

!

service instance 250 ethernet 

encapsulation untagged 

xconnect 172.16.0.0 250 encapsulation mpls

!

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