[j-nsp] L2VPN on LT interfaces

Nikolay Abromov nabromov at gmail.com
Wed Jul 25 07:58:18 EDT 2012


Dear All,

I have L2VPN between two PEs and I am using LT interfaces on logical
systems. Looks like the control plain operations are working
correctly,however, the forwarding plain doesn't seem to work.  It could be
a bug or limitation of the LT interfaces. I will be glad if you can verify
that for me.

CE1 interface facing PE1 is configured with 10.0.10.1 and CE2 interface
facing PE2 is confgured with 10.0.10.5.

Thank you in advance.





(topology)
CE1 - PE1 -- PE2 - CE2


NO* ARP* on the CE's.



PE-CE interface
[edit logical-systems pe1 interfaces lt-2/2/0 unit 50]

description to-ceX_1;
encapsulation ethernet-ccc;
peer-unit 51;


[edit logical-systems pe1 routing-instances vpn-1]
root at jnlab# show
instance-type l2vpn;
interface lt-2/2/0.50;
route-distinguisher 192.168.1.1:1;
vrf-target target:65512:1;
protocols {
    l2vpn {
        encapsulation-type ethernet;
        site ceX_1 {
            site-identifier 1;
            interface lt-2/2/0.50 {
                remote-site-id 3;
            }
        }
    }
}

[edit logical-systems pe1 routing-instances vpn-1]




[edit logical-systems pe2 interfaces lt-2/2/0 unit 52]

encapsulation ethernet-ccc;
peer-unit 53;

[edit logical-systems pe2 routing-instances vpn-1]
instance-type l2vpn;
interface lt-2/2/0.52;
route-distinguisher 192.168.1.2:1;
vrf-target target:65512:1;
protocols {
    l2vpn {
        encapsulation-type ethernet;
        site ceX_2 {
            site-identifier 3;
            interface lt-2/2/0.52 {
                remote-site-id 1;
            }
        }
    }
}

[edit logical-systems pe2 routing-instances vpn-1]


show bgp summary on pe1
192.168.1.2           65512       3319       3305       0       2  1d
0:50:52 Establ
  inet.0: 2/2/2/0
  bgp.l3vpn.0: 6/6/6/0
  vpn-1.l2vpn.0: 1/1/1/0
  bgp.l2vpn.0: 1/1/1/0



show bgp summary on pe2
192.168.1.1           65512       3307       3318       0       0  1d
0:51:11 Establ
  inet.0: 2/2/2/0
  bgp.l3vpn.0: 6/6/6/0
  bgp.l2vpn.0: 1/1/1/0
  vpn-1.l2vpn.0: 1/1/1/0




root at jnlab# run show l2vpn connections extensive logical-system pe1
Layer-2 VPN connections:


Instance: vpn-1
  Local site: ceX_1 (1)
    Number of local interfaces: 1
    Number of local interfaces up: 1
    lt-2/2/0.50         3
    Label-base        Offset     Size  Range     Preference
    800002            3          2      1         100
      status-vector:  0
    connection-site           Type  St     Time last up          # Up trans
    3                         rmt   Up     Jul 25 09:11:10 2012           1
      Remote PE: 192.168.1.2, Negotiated control-word: Yes (Null)
      Incoming label: 800002, Outgoing label: 800002
      Local interface: lt-2/2/0.50, Status: Up, Encapsulation: ETHERNET
    Connection History:
        Jul 25 09:11:10 2012  status update timer
        Jul 25 09:11:09 2012  PE route changed
        Jul 25 09:11:09 2012  Out lbl Update                    800002
        Jul 25 09:11:09 2012  In lbl Update                     800002
        Jul 25 09:11:09 2012  loc intf up                  lt-2/2/0.50

[edit logical-systems pe2 interfaces lt-2/2/0 unit 52]

root at jnlab# run show l2vpn connections extensive logical-system pe2
Layer-2 VPN connections:

Instance: vpn-1
  Local site: ceX_2 (3)
    Number of local interfaces: 1
    Number of local interfaces up: 1
    lt-2/2/0.52         1
    Label-base        Offset     Size  Range     Preference
    800002            1          2      1         100
      status-vector:  0
    connection-site           Type  St     Time last up          # Up trans
    1                         rmt   Up     Jul 25 09:11:10 2012           1
      Remote PE: 192.168.1.1, Negotiated control-word: Yes (Null)
      Incoming label: 800002, Outgoing label: 800002
      Local interface: lt-2/2/0.52, Status: Up, Encapsulation: ETHERNET
    Connection History:
        Jul 25 09:11:10 2012  status update timer
        Jul 25 09:11:10 2012  PE route changed
        Jul 25 09:11:10 2012  Out lbl Update                    800002
        Jul 25 09:11:10 2012  In lbl Update                     800002
        Jul 25 09:11:10 2012  loc intf up                  lt-2/2/0.52

[edit logical-systems pe2 interfaces lt-2/2/0 unit 52]



root at jnlab# run show route table inet.3 logical-system pe1

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

192.168.1.2/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.210.2 via lt-2/2/0.7, Push 301232
                      to 172.22.211.2 via lt-2/2/0.11, Push 301424
192.168.5.1/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.210.2 via lt-2/2/0.7
192.168.5.2/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.210.2 via lt-2/2/0.7, Push 301152
192.168.5.3/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.210.2 via lt-2/2/0.7, Push 301200
192.168.5.4/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.211.2 via lt-2/2/0.11
192.168.5.5/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.211.2 via lt-2/2/0.11, Push 301376
192.168.5.6/32     *[LDP/6] 01:11:58, metric 1
                    > to 172.22.211.2 via lt-2/2/0.11, Push 301392

[edit logical-systems pe2 interfaces lt-2/2/0 unit 52]
root at jnlab# run show route table inet.3 logical-system pe2

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

192.168.1.1/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.222.2 via lt-2/2/0.33, Push 301600
                      to 172.22.223.2 via lt-2/2/0.37, Push 301648
192.168.5.1/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.222.2 via lt-2/2/0.33, Push 301584
192.168.5.2/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.222.2 via lt-2/2/0.33, Push 301568
192.168.5.3/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.222.2 via lt-2/2/0.33
192.168.5.4/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.223.2 via lt-2/2/0.37, Push 301632
192.168.5.5/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.223.2 via lt-2/2/0.37, Push 301584
192.168.5.6/32     *[LDP/9] 01:11:59, metric 1
                    > to 172.22.223.2 via lt-2/2/0.37

[edit logical-systems pe2 interfaces lt-2/2/0 unit 52]


Model: m120
JUNOS Base OS boot [11.4R3.7]
JUNOS Base OS Software Suite [11.4R3.7]
JUNOS Kernel Software Suite [11.4R3.7]
JUNOS Crypto Software Suite [11.4R3.7]
JUNOS Packet Forwarding Engine Support (M/T Common) [11.4R3.7]
JUNOS Packet Forwarding Engine Support (M120) [11.4R3.7]
JUNOS Online Documentation [11.4R3.7]
JUNOS Voice Services Container package [11.4R3.7]
JUNOS Border Gateway Function package [11.4R3.7]
JUNOS Services AACL Container package [11.4R3.7]
JUNOS Services LL-PDF Container package [11.4R3.7]
JUNOS Services PTSP Container package [11.4R3.7]
JUNOS Services Stateful Firewall [11.4R3.7]
JUNOS Services NAT [11.4R3.7]
JUNOS Services Application Level Gateways [11.4R3.7]
JUNOS Services Captive Portal and Content Delivery Container package
[11.4R3.7]
JUNOS Services RPM [11.4R3.7]
JUNOS Services HTTP Content Management package [11.4R3.7]
JUNOS AppId Services [11.4R3.7]
JUNOS IDP Services [11.4R3.7]
JUNOS Services Crypto [11.4R3.7]
JUNOS Services SSL [11.4R3.7]
JUNOS Services IPSec [11.4R3.7]
JUNOS Runtime Software Suite [11.4R3.7]
JUNOS Routing Software Suite [11.4R3.7]



----
Best Regards,
Nikolay Abromov


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