Panasonic NN46240-710 - Manual (Page 121)

Nortel Secure Router 8000 Series
Troubleshooting - VPN___________ 4 MPLS L2VPN troubleshooting
Item Subitem Notes
Configuring
BGP
(remote
connection
using BGP as
the signaling)
AS You must specify the same AS for all related PEs and
Ps.
Interface used
for BGP
connection
You must specify the loopback interface (with a 32-bit
mask) as the egress interface of the session that is used
to establish an IBGP connection between PEs.
Enabling a
specified peer
In the Layer 2 VPN address family view, you need to
specify a peer or peer group between which the routing
information is exchanged.
Enabling
MPLS Layer 2
VPN
MPLS Layer 2
VPN
Whatever MPLS Layer 2 VPN mode you choose, you
must enable MPLS Layer 2 VPN globally.
Configuring
AC (Attached
Circuit)
Encapsulation
type, MTU and
interface
parameters of
the specific link
type
The Layer 2 VPN can be in the Up state only when the
status of AC is Up.
• If the AC type is VLAN, the subinterface can be
either the one based on the Ethernet or the VLANIF
interface based on the port.
• If the AC type is ATM, configure the VC.
Configuring a
connection
Creating a
connection
• For the SVC mode, create the static Layer 2 VC in the
interface view.
• For the Martini mode, create the Layer 2 VC in the
interface view.
• For the CCC mode, create the CCC connection in the
system view.
• For the Kompella mode, create the CE connection.
Specifying an
encapsulation
type for the
interface
For a Layer 2 VC connection the encapsulation type
must be consistent on the interface at both VC ends.
Configuring the
VC ID
The VC IDs of the SVC on S-PE can be the same.
However, the VC ID of the same encapsulation type on
U-PE must be unique. Changing the encapsulation type
on U-PE can lead to the collision of the VC ID.
For the static PW, the default VC ID is 0. If the static
PW is used in the switching, a non-zero VC ID must be
configured.
Specifying the
MTU size for
the interface
For an LDP VC, the MTU is one of the key parameters
to be negotiated. The MTU size must be the same on
both ends of a VC; otherwise, the VC will not go up.
For U-PE, the MTU is specified in the interface view.
For S-PE, the MTU is specified when switching VCs is
configured.
Issue 5.3 (30 March 2009) Nortel Networks Inc. 4-11