qtechMplsPsType

The MPLS PS architecture can be a 1+1 type, a 1:1 type, a shared mesh type,
or a packet 1+1 type.
1. In the 1+1 architecture type, a protection LSP is dedicated to each working
   LSP with the working LSP bridged onto the protection LSP at the source of
   the protection domain.
2. In the 1:1 architecture type, a protection LSP is dedicated to each working LSP.
3. In the shared mesh architecture type, possible sharing of protection capacity
   between disjoint link, node, or SRG failures in the network is achieved while
   guaranteeing recovery from a single failure. For each link in the network, it
   keeps track of all the working paths whose traffic will be switched onto it
   after a given failure. By keeping track of this, it only needs to reserve the
   maximum of the protection capacity required to protect a single failure in the
   network.
4. In the packet 1+1 architecture type, the traffic is transmitted simultaneously
   onto two possibly disjoint routed LSPs to the sink of the protection domain. 
   Each pair of duplicate transmitted packets is assigned the same identifier(sequence number)
   but distinct from the other pairs of duplicate packets. At the sink of the 
   protection domain, packet level selection mechanism is employed to select one
   of the two possibly received copies of each packet. The following list provides
   principles for MPLS protection architectures and mechanisms development.
1: 1:1 protection switching;
2: 1+1 protection switching;
3: shared mesh protection swiching;
4: packet 1+1 protection switching.

MIB

QTECH-MPLSOAM-MIB

OID

.1.3.6.1.4.1.27514.1.1.10.2.93.1.3.1.1.3

Type

column

Access

readonly

Status

current

Parent

qtechMplsPsEntry

Table

qtechMplsPsTable

Siblings

14