[f-nsp] l2 pseudowire with between ASNs

chip chip.gwyn at gmail.com
Tue Aug 21 16:24:35 EDT 2012


Hi all,

  I have a situation in which I'd like to encapsulate packets coming
in on an 802.1q sub int on a Cisco 7600 and drop them into a VLAN on a
Brocade XMR.  The two routers are in two different ASNs and do not
have an IGP.  The two routers are directly connected to each other and
only speak via eBGP.    I've got  the "send-label" on the cisco side
and "next-hop-mpls" on the brocade side.   It appears that I have and
LDP session but I'm not seeing labels and the
vll/xconnect/vc/pseudowire isn't up.   The interface e1/1 on the
brocade side is a trunked port going down to other distribution
switches and eventually a server that sits in vlan 3000.  I apologize
for my ignorance here, still learning all the moving pieces.

Thoughts?

Thanks!

--chip

On the cisco side I have:
-------------------------------------------
mpls label protocol ldp
mpls ldp router-id Loopback0 force
!
interface Loopback0
 ip address 10.100.119.134 255.255.255.255
 logging event link-status
end
!
interface GigabitEthernet4/48
 description l2-test
 no ip address
 no keepalive
!
interface GigabitEthernet4/48.3000
 encapsulation dot1Q 3000
 xconnect 192.168.8.1 100 encapsulation mpls
end
!
router bgp 64600
 bgp log-neighbor-changes
 neighbor 10.100.117.18 remote-as 64606
 neighbor 10.100.117.18 description voxlab-2
 address-family ipv4
  no synchronization
  neighbor 10.100.117.18 activate
  neighbor 10.100.117.18 send-community
  neighbor 10.100.117.18 prefix-list routes-64606 in
  neighbor 10.100.117.18 distribute-list 102 out
  neighbor 10.100.117.18 route-map TEST-IN in
  neighbor 10.100.117.18 route-map EBGP-STD out
  neighbor 10.100.117.18 send-label
  neighbor 10.100.117.18 maximum-prefix 250 80
!


On the brocade side I have:
-------------------------------------------
interface loopback 1
 ip address 192.168.8.1/32
!
interface ethernet 1/1
 enable
 load-interval 30
 no fdp enable
!
interface ethernet 1/3
 enable
 ip address 10.100.117.18/30
 ip mtu 9000
!
router bgp
 local-as 64606
 next-hop-mpls
 neighbor as64600 peer-group
 neighbor as64600 remote-as 64600
 neighbor 10.100.117.17 peer-group as64600
 neighbor 192.168.8.2 remote-as 64606
 neighbor 192.168.8.2 description tsr2
 neighbor 192.168.8.2 update-source loopback 1
 address-family ipv4 unicast
 network 192.168.8.1/32
neighbor as64600 prefix-list 64606-nets-nap006 out
 neighbor 10.100.117.17 route-map out comm_test
 neighbor 10.100.117.17 send-community
 exit-address-family
!
router mpls
 mpls-interface e1/3
  ldp-enable
 !
 vll b1_tsr1 100
  vll-mtu 1500
  vll-peer 10.100.119.134
  vlan 3000
   tagged e 1/1
 !
!



--------------------------
Various outputs:
--------------------------

telnet at tsr1.TEST006#sho mpls ldp
Label Distribution Protocol version 1
  LSR ID: 192.168.8.1, using Loopback 1 (deleting it will stop LDP)
  Hello interval: Link 5 sec, Targeted 15 sec
  Hold time value sent in Hellos: Link 15 sec, Targeted 45 sec
  Keepalive interval: 6 sec, Hold time multiple: 6 intervals
  Load sharing: 1
  Tunnel metric: 0
  FEC used for auto discovered peers: current 129, configured 129
  Graceful restart: disabled



telnet at tsr1.TEST006#sho mpls ldp neighbor
 Number of link neighbors: 1
 Number of targeted neighbors: 1

Nbr Transport       Interface         Nbr LDP ID          Max Hold  Time Left
10.100.119.134       e1/3  (Trunk1)    10.100.119.134:0     15        11
10.100.119.134       (targeted)        10.100.119.134:0     45        41



telnet at tsr1.TEST006#sho mpls vll
* - Active VLL Peer; U - UP; D - DOWN

Vll-Peer           Vll-Peer           MCT
Name      VC-ID       End-Point
(State)            (State)            state
----      -----       ---------
--------           --------           -----
b1_tsr1   100         tag vlan 3000 e 1/1(U)
10.100.119.134(D)*  --                 None



telnet at tsr1.TEST006#sho mpls vll detail
VLL b1_tsr1, VC-ID 100, VLL-INDEX 0

  End-point        : tagged  vlan 3000  e 1/1
  End-Point state  : Up
  MCT state        : None
  IFL-ID           : --
  Local VC type    : tag
  Local VC MTU     : 1500
  COS              : --
  Extended Counters: Enabled

  Vll-Peer         : 10.100.119.134
    State          : DOWN - no tunnel LSP to vll-peer
    Remote VC type : --                Remote VC MTU  : --
    Local label    : --                Remote label   : --
    Local group-id : 0                 Remote group-id: --
    Tunnel LSP     : --
    MCT Status TLV : --


telnet at tsr1.TEST006#sho mpls forwarding
Total number of MPLS forwarding entries: 0
      Dest-prefix        In-lbl Out-lbl Out-intf      Sig Next-hop








border1.TEST001# sho mpls forwarding-table 192.168.8.1
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
None       No Label   192.168.8.1/32     0             Po61       10.100.117.18



border1.TEST001#  sho mpls l2transport vc

Local intf     Local circuit              Dest address    VC ID      Status
-------------  -------------------------- --------------- ---------- ----------
Gi4/48.3000    Eth VLAN 3000              192.168.8.1       100
DOWN



border1.TEST001#  sho mpls l2transport vc  detail
Local interface: Gi4/48.3000 up, line protocol up, Eth VLAN 3000 up
  Destination address: 192.168.8.1, VC ID: 100, VC status: down
    Output interface: none, imposed label stack {}
    Preferred path: not configured
    Default path: no route
    No adjacency
  Create time: 00:50:29, last status change time: 00:16:27
  Signaling protocol: LDP, peer 192.168.8.1:0 up
    Targeted Hello: 10.100.119.134(LDP Id) -> 192.168.8.1, LDP is
DOWN, no binding
    Status TLV support (local/remote)   : enabled/None (no remote binding)
      LDP route watch                   : enabled
      Label/status state machine        : local ready, LruRnd
      Last local dataplane   status rcvd: No fault
      Last local SSS circuit status rcvd: No fault
      Last local SSS circuit status sent: Not sent
      Last local  LDP TLV    status sent: No fault
      Last remote LDP TLV    status rcvd: None (no remote binding)
      Last remote LDP ADJ    status rcvd: None (no remote binding)
    MPLS VC labels: local 60, remote unassigned
    Group ID: local 0, remote unknown
    MTU: local 1500, remote unknown
    Remote interface description:
  Sequencing: receive disabled, send disabled
  Control Word: Off (configured: autosense)
  VC statistics:
    transit packet totals: receive 0, send 0
    transit byte totals:   receive 0, send 0
    transit packet drops:  receive 0, seq error 0, send 0







-- 
Just my $.02, your mileage may vary,  batteries not included, etc....


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