[f-nsp] CER2000 VLL interop with Coriant 8602

[Daniel Hooper]

Hi,

I'm trying to setup VLL's between a CER2000 running code version 5.9 and a Tellabs / Coriant 8602 router.

I can get the VLL's up ok, what is confusing on the brocade side is raw-mode and raw-pass-through-mode.

Essentially on my Coriant device I am accepting SVLAN 0x88a8 tagged frames and stripping the outer tag off before pushing them down the VLL, I'm simply using SVLAN's to be the service identifier on the AC interface.

I want to be able to transparently pass inner 0x8100 tags over the VLL, it appears though no matter what I do on the CER2000 it seems to strip the inner tags off.

I've tried raw-mode and raw-pass-through-mode on the VLL configuration, specifying 'untag e 1/1' inside the VLL configuration, I've also tried changing the tag value of tag2 to 9100 and configuring tag-type tag2 on port e 1/1 (uplink to customer CPE)

Has anyone got any idea's on what I can try?

If I do this same setup with coriant routers back to back it works ok as expected.

This is info and config I currently have on the Brocade:

!
router mpls
policy
  traffic-eng isis level-2
  handle-isis-neighbor-down
rsvp
  rsvp-hello acknowledgements
ldp
  lsr-id 10.0.0.10
mpls-interface e1/48
  ldp-enable

vll moo 100 raw-mode
  vll-peer 10.0.0.3
  untag e 1/1
!
!

Brocade-sw#  show mpls vll detail
VLL moo, VC-ID 100, VLL-INDEX 1

  End-point        : untagged  e 1/1
  End-Point state  : Up
  MCT state        : None
  Local VC type    : untag
  Local VC MTU     : 9190
  COS              : --
  Extended Counters: Disabled
  Counter          : disabled

  Vll-Peer         : 10.0.0.3
    State          : UP
    Remote VC type : untag             Remote VC MTU  : 9190
    Local label    : 851968            Remote label   : 1286
    Local group-id : 0                 Remote group-id: 5010
    Tunnel LSP     : LDP (tnl2)
    MCT Status TLV : Active
    LSPs assigned  : No LSPs assigned


Some further info from the Coriant:

!
pwe3 circuit MOO 100 mpls ldp 10.0.0.10
!
# Interfaces and their configuration:
interface ge0/0
    mtu 9216
    ip mtu 9190
    mpls mtu 9190
    no shutdown
    qos mapping enable
!
interface ge0/0#svlan#4000
    ip mtu 9190
    pwe3 circuit MOO encapsulation ethernet untagged
    no shutdown
!

Router3#show ldp pwe3 detail
vcid: 100, name: MOO, type: ethernet, local groupid: 5010, remote groupid: 0 (vc is UP)
destination: 10.0.0.10, Peer LDP Ident: 10.0.0.10
Local label: 1286, remote label: 851968
PSN tunnel to 10.0.0.10: present
VC QoS: none contraints: include-any 0x0 include-all 0x0 exclude-any 0x0
Client IF: ge0/0#svlan#4000
Local Control Word: pref 0 sent 0, Remote Control Word: rcvd 0, Result: not used
Local PW status: supported, Remote PW status: not supported, Method used: label-withdraw
Remote interface status: UP
Local interface status: UP



Kind Regards,

Daniel Hooper
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