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diegosaav
Beginner

cisco & juniper l2circuit interoperability issue

Hi folks,

After reading some docs about configuration options between them I have not connectivity yet.

My topology is as follow:

CEside <> JuniperM20 <> JuniperM20 <> Cisco7606 <> CEside

The configs:

neighbor y.y.y.y {

    interface ge-2/0/0.1950 {

        virtual-circuit-id 1950;

        no-control-word;

        mtu 1500;

        ignore-encapsulation-mismatch;

        ignore-mtu-mismatch;

    }

show configuration interfaces ge-2/0/0.1950

encapsulation vlan-ccc;

vlan-id 1950;

family ccc;

sh run int g1/14.1950

interface GigabitEthernet1/14.1950

description PW-TEST-ING

encapsulation dot1Q 1950

xconnect x.x.x.x 1950 encapsulation mpls

end

Some troubleshooting commands:

Cisco side:

sh mpls l2transport vc detail

Local interface: Gi1/14.1950 up, line protocol up, Eth VLAN 1950 up

  Destination address: x.x.x.x, VC ID: 1950, VC status: down

    Output interface: none, imposed label stack {}

    Preferred path: not configured 

    Default path: no route

    No adjacency

  Create time: 1d18h, last status change time: 1d18h

  Signaling protocol: LDP, peer x.x.x.x: up

    Targeted Hello: y.y.y.y(LDP Id) -> x.x.x.x

    MPLS VC labels: local 1697, remote unassigned

    Group ID: local 0, remote unknown

    MTU: local 1500, remote unknown

    Remote interface description:

  Sequencing: receive disabled, send disabled

  VC statistics:

    packet totals: receive 0, send 0

    byte totals:   receive 0, send 0

    packet drops:  receive 0, send 0

Juniper side:

show l2circuit connections neighbor y.y.y.y | find ^Neighbor   

Neighbor: y.y.y.y

    Interface                 Type  St     Time last up          # Up trans

    ge-2/0/0.1950(vc 1950)    rmt   VC-Dn  -----                          0

      Remote PE: y.y.y.y, Negotiated control-word: No Encapsulation: ETHERNET

      Incoming label: 589520, Outgoing label: 1697

      Local interface: ge-2/0/0.1950, Status: Up, Encapsulation: VLAN

Juniper logs:

Jul 26 15:09:16.063733 [add] l2circuit VC l2ckt_vc_adv_recv (cw-bit 0, encaps ETHERNET, vc-id 1950,label 1697, mtu 1500, cb-size 0, no vlan-id, TDM payload size 0 bytes,  TDM bitrate 0 (xDS0)) received from PE y.y.y.y

Jul 26 15:09:16.063823 [l2ckt_vc_adv_recv] Intf ge-2/0/0.1950 (VC-ID 1950) updated from signalled info: label 1697, encaps ETHERNET, cw-bit 0, mtu 1500, cb-size 0,  TDM payload size 0 (bytes), TDM bitrate 0 (xDS0) no vlan-id

Jul 26 15:09:16.065538        Triggering VC status update timer for intf ge-2/0/0.1950

Jul 26 15:09:16.114307 [vc_intf_vc_status_update] Recomputing the status of the VC for interface : ge-2/0/0.1950

Jul 26 15:09:16.114335 vc_intf_vc_status_update] interface : ge-2/0/0.1950 vc status = intf Up : intf_up = TRUE

Jul 26 15:09:16.114360 [vc_intf_vc_status_update] interface : ge-2/0/0.1950 UP adv_down = 0 : vc_down = 0, ccc_up = 1

Jul 26 15:09:16.114383 vc_intf_vc_status_update] interface : ge-2/0/0.1950 VC PRESENT

Jul 26 15:09:16.114453 [vc_intf_vc_status_update] interface : ge-2/0/0.1950 Done Computing adv, vc down and ccc_up status adv_down = 1, vc_down = 1, ccc_up = 0

Any ideas would be appreciated.

Thx!

-d

8 REPLIES 8
Harold Ritter
Cisco Employee

Hi Diego,

Do you have an functionning LSP from the Cisco to the Juniper? Can you do a "show ip cef x.x.x.x int" from the Cisco side.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Hi Harold,

There is the output of "show ip cef x.x.x.x int" command from the Cisco rtr.

#sh ip cef x.x.x.x internal

x.x.x.x/32, epoch 9, RIB[S], refcount 6, per-destination sharing

  sources: RIB

  feature space:

   LFD: x.x.x.x/32 1 local label

   local label info: global/1699

        contains path extension list

        disposition chain 0x547E5088

        label switch chain 0x547E5088

   IPRM: 0x00058000

   Broker: linked

  ifnums:

   GigabitEthernet2/15(35): y.y.y.y <<<< /30 link between c7606 <> jm20

   path_list contains at least one resolved destination(s). HW not notified

  path 53503608, path list 4571D938, share 1/1, type recursive, for IPv4

  recursive via y.y.y.y[IPv4:Default], fib 45615D2C, 1 terminal fib

    path 53504244, path list 4571DD58, share 1/1, type adjacency prefix, for IPv4

      MPLS long path extensions: MOI flags = 0x0 label 300512

    attached to GigabitEthernet2/15 label 300512, adjacency IP adj out of GigabitEthernet2/15, addr y.y.y.y

53747800

  long extension for path if GigabitEthernet2/15 next hop y.y.y.y:

    MPLS long path extensions: MOI flags = 0x0 label 300512

  output chain: label 300512 TAG adj out of GigabitEthernet2/15, addr y.y.y.y 53745E80

and...

#show mpls forwarding-table x.x.x.x

Local  Outgoing      Prefix            Bytes Label   Outgoing   Next Hop   

Label  Label or VC   or Tunnel Id      Switched      interface             

1699   300512        x.x.x.x/32   51172         Gi2/15     y.y.y.y

Many thx for your time!

-d

Hi Diego,

What IOS version do you run on the 7606?

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Hi Harold,

Sorry for the delay, the IOS version that we're running on the C7606 is:

#sh ver | i IOS

Cisco IOS Software, c7600s3223_rp Software (c7600s3223_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRB7, RELEASE SOFTWARE (fc1)

Thx,

-d

Hi Diego,

This is a pretty old version of IOS. I would recommend you upgrade to something more recent before proceeding with more troubleshooting.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Hi Harold,

Which version of IOS do you recommend to upgrade based on the following features of the box?

cisco CISCO7606-S (R7000) processor (revision 1.1) with 983040K/65536K bytes of memory.

Processor board ID FOX1340GJxx

R7000 CPU at 300Mhz, Implementation 0x27, Rev 3.3, 256KB L2, 1024KB L3 Cache

Last reset from power-on

35 Virtual Ethernet interfaces

146 Gigabit Ethernet interfaces

1915K bytes of non-volatile configuration memory.

65536K bytes of Flash internal SIMM (Sector size 512K).

Configuration register is 0x2102

Thx,

-d

Hi Diego,

I would recommend the latest version (15.3(1)S2). You currently do not have enough flash memory and will therefore need to upgarde.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Thx Harold, we'll be upgrading to the latest version and keep you posted.

-d