George Swallow
Mar 27, 2015
George Swallow
Current Status: Two formatsGlobal-ID as per RFC5003ITU Carrier Code
Issue:Should these be combinable with all other
identifiers that need global uniquenessOr should some limits exist on mixing and matching
ITU and IP style IDs?Needs to be sorted for ACH-TLV draftBalance of presentation using “SP-ID” as
placeholder without specifying which one(s)
Need IF-ID on TunnelTunnelWorking Label-Switched PathProtection Label-Switched Path
MEP
MIP
Link InterfaceTunnel Interface
Node IDs◦ 32-bit ID assigned by operator◦ Need not be an IP Address, but◦ Can be auto-generated from an IPv4 address
Interface IDs◦ Logical Interface Handle
32-bit ID that is assigned from a space local to a particular node
◦ IF-ID ::= Node-id::LIH◦ Only needed on tunnels and links
Tunnel-ID formed as local{[Sp-ID]::node::tunnel-num}
+remote{[Sp-ID]::node::tunnel-num}◦ Tunnel-num is unique within scope of Node-ID◦ Addresses issue of independent destination tunnel
space◦ Canonical Format of Tunnel-ID
lower ([Sp-ID]::Node-ID) goes first
LSP-num – 16 bit identifier as in RFC3209Unique within scope of tunnel
LSP-ID formed as local{[Sp-ID]::node::Tun-ID::LSP-ID}
+remote{[Sp-ID]::node::Tun-ID::LSP-ID}◦ Canonical Format of LSP-ID
lower ([Sp-ID]::Node-ID) goes first◦ Compatible with GMPLS signaling
MEP – Maintenance Endpoint◦ Management function associated with an Tunnel,
LSP, or PW endpoint MEG - Maintenance entity group
◦ A set of peer MEPs ME - Maintenance entity
◦ A relationship between two MEPs within a MEG A MEP belongs to one and only one MEG A MEP may belong to multiple MEs
This is normal for P2MP objects
TunnelWorking (Label-Switched) PathProtection (Label-Switched) Path
MEP
MEG
ME
Working Path being rerouted
TunnelWorking (Label-Switched) PathProtection (Label-Switched) Path
MEP
MEG
ME
Working Path being rerouted
Note: MEG & ME for Tunnel or Protect LSPsnot shown
MEG-ID◦ 13 byte character string
MEP-ID ◦ 13 bit-id unique within MEG-ID
Tunnels◦ MEG-ID = Tunnel-ID◦ MEP-ID ::= [SP-ID]::Node-ID::Tunnel-num
LSPs◦ MEG-ID – TBD (was = LSP-ID)◦ MEP-ID::= [SP-ID]::Node-ID::Tunnel-num::LSP-
Num
Update draft according to this presentation + notes from MEAD team meeting
Working group draft (not necessarily in this order)