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Community Member

MPLS - Problem in Local Connect on Cisco 7609

Hi All,

I have been experiencing a difficulty in configuring a L2 bridging/local connect on a SPA-2X1GE-V2 card in a 7600-SIP-400. [12.2(33) SRD]

Pl refer the attached solution diagram.(MPLS Local Connect.jpg)

MPLS Local Connect.jpg

My requirement is to provide a L2 connection to one of our customers whrere both locations report to a single Radio base station. We cannot configure same VLAN in both radio links due to a limitation in the base station itself.(Then we could have switch traffic from the Ethernet Aggrigation Switch ). CPE-1 tag VLAN 155 & CPE-2 tag VLAN 156 and  send frames to MPLS PE. At the MPLS PE both links terminate on a Gigi Ethernet port as service instances where we need to "hair Pin".

Below given the configurations.

Option -1

interface GigabitEthernet8/0/1

description ##### Connection to MAB002-SW1 - Gi 1/1/1 - MTU 1600 #####

mtu 1600

no ip address

negotiation auto

cdp enable

service instance 155 ethernet

  encapsulation dot1q 155

  rewrite ingress tag translate 1-to-1 dot1q 156 symmetric

  bridge-domain 10

!

service instance 156 ethernet

  encapsulation dot1q 156

  bridge-domain 10

!

End

!

bridge-domain 10

!        

bridge irb

!

************************************************

MAB002-PE#show bridge-domain stats

Maximum allowed bridge-domains : 0

Maximum allowed ports per bridge-domain : 0

Maximum allowed split horizon groups : 0

MAB002-PE#show bridge-domain     

Bridge-domain 10  (2 ports in all)

State: UP

    GigabitEthernet8/0/1 service instance 100

    GigabitEthernet8/0/1 service instance 200

MAB002-PE#

################################################

Option - 2

interface GigabitEthernet8/0/1

description ##### Connection to MAB002-SW1 - Gi 1/1/1 - MTU 1600 #####

mtu 1600

no ip address

negotiation auto

cdp enable

service instance 155 ethernet

  encapsulation dot1q 155

  rewrite ingress tag pop 1 symmetric

!

service instance 156 ethernet

  encapsulation dot1q 156

  rewrite ingress tag pop 1 symmetric

!

!

connect TEST_L2 GigabitEthernet8/0/1 155 GigabitEthernet8/0/1 156

!

*************************************************

MAB002-PE#show connection

ID   Name            Segment 1              Segment 2                  State  

================================================================================

15   TEST_L2         Gi8/0/1:100            Gi8/0/1:200                UP     

MAB002-PE#

HOWEVER WE COULDN'T "PING" EITHER DIRECTION ON BOTH CONFIGURATIONS OPTIONS.

(ping 10.10.10.1 or 10.10.10.2)

Hope an expert will assist us to resolve this issue.

Note: Option two works in Cisco GSR routers. (12406 on SPA-2X1GE-V1 on a 12000-SIP-401 - IOS12.0(32)SY7)

Thank You in advance,

Chaminda.

2 REPLIES
Cisco Employee

Re: MPLS - Problem in Local Connect on Cisco 7609

I have not tested it myself but try the following configuration instead:

nterface GigabitEthernet8/0/1

description ##### Connection to MAB002-SW1 - Gi 1/1/1 - MTU 1600 #####

mtu 1600

no ip address

negotiation auto

cdp enable

service instance 155 ethernet

  encapsulation dot1q 155

rewrite ingress tag translate 1-to-1 dot1q 156 symmetric

!

service instance 156 ethernet

  encapsulation dot1q 156

!

!

connect TEST_L2 GigabitEthernet8/0/1 155 GigabitEthernet8/0/1 156

Community Member

Re: MPLS - Problem in Local Connect on Cisco 7609

Hi Atif,

Thank you for adding your valuable suggestion for my question.

I tried the configuraton you suggested; but no luck.

Chaminda.

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