Table 3: Mapping From Rsvp-Te To Mpls-Tp Maintenance Identifiers; Figure 13: Mpls-Tp Lsp And Tunnel Information Model - Alcatel-Lucent 7450 Manual

MPLS-TP Maintenance Identifiers
control plane for MPLS-TP LSPs, although this is not supported in Release 11.0 of the 7750. PWs
are identified using a PW Path ID which has the same structure as FEC129 AII Type 2.
SR OS derives the identifiers for MEPs and MIPs on LSPs and PWs based on the configured
identifiers for the MPLS-TP Tunnel, LSP or PW Path ID, for use in MPLS-TP OAM and
protection switching, as per RFC6370.
The information models for LSPs and PWs supported in Release 11.0 are illustrated in
and Figure
if_id =
node_id::if_num
MEPs
LER X
global_id
node_id
x-tunnel_id =
global_id::node_id::tunnel_num
x-tunnel if_id = node_id::if_num
The MPLS-TP Tunnel ID and LSP ID are not to be confused with the RSVP-TE tunnel id
implemented on the 7x50 system.
shown in the above figure for the case of co-routed bidirectional LSPs.

Table 3: Mapping from RSVP-TE to MPLS-TP Maintenance Identifiers

RSVP-TE Identi-
fier
Tunnel Endpoint
Address
Tunnel ID (X)
Extended Tunnel ID
Tunnel Sender
Address
LSP ID
Page 66
14. The figures use the terminology defined in RFC6370.
isp_id =
x-tunnel_id::y-tunnel_id::isp_num
MIP
LSP_a
Working
LSR A
MIP
LSP_b
Protect
LSR C

Figure 13: MPLS-TP LSP and Tunnel Information Model

Table 3
MPLS-TP Maintenance Identifier
Node ID (Y)
Tunnel Num (X)
Node ID (X)
Node ID (X)
LSP Num
MIP
mip_id =
node_id::0
LSR B
MIP
LSR D
shows how these map to the X and Y ends of the tunnel
7450 ESS MPLS Guide
Figure 13
MEG
MEPs
meg_id =
isp_id
mep_id =
global_id::node_id::
tunnel_id::isp_num
LER Y
al_0227