Lmp And Ipcc Configuration; Configuration Of Ip Communication Channels For Lmp And Rsvp; Configuring Lmp - Alcatel-Lucent 7450 Manual

LMP and IPCC Configuration

Configuration of IP Communication Channels for LMP and RSVP

Configuration starts with enabling the IP communication channel (IPCC) between the 7x50
UNI-C and the adjacent UNI-N. The IPCC is a data communication channel for LMP and
RSVP. For each different 7x50 and UNI-N adjacency, a different IPCC must be configured.
In release 13.0, a numbered network IP interface is bound to the port connected to the DCN or
directly to the 1830 PSS.
GMPLS protocols use a new loopback address type, called a gmpls-loopback, on the IPCC.
The address of this loopback is termed the local GMPLS router ID. Packets that do not belong
to a GMPLS protocol that are destined for this loopback address will be dropped. An interface
is configured as a GMPLS Loopback using the gmpls-loopback keyword.
config
The destination address of the LMP and RSVP control plane packets should be set to the
LMP/GMPLS loopback of the 1830 PSS. The 1830 PSS does that via a dedicated subnet on a
VLAN interface on the management port. Another VLAN extends a separate subnet for
management purposes. On the 7x50 LMP and RSVP control plane packets should be sent to
the next-hop for the GMPLS/LMP loopback address of the neighboring 1830 PSS. This is
achieved via a static route in Release 13.0. The 1830 PSS and 7x50 GMPLS Router IDs must
be in the same subnet. It may be possible to operate over a routed DCN network if the RSVP
control plane messages will not set the IP router alert bit. Otherwise only direct IP
connectivity, via a L2 network, will work.
If the IPCC goes down, then an existing TE Link or gLSP to a given peer UNI-N node is not
torn down just because the IPCC is down. However, if the IPCC is down, then it is not possible
to establish new gLSPs or TE Links, and a trap indicating a degraded state is raised.

Configuring LMP

LMP is used to establish and maintain an IPCC between adjacent peers, as well as to correlate
the local and remote identifiers for the TE Links that it controls. Some attributes must be
configured locally on a per-peer basis, such as the LMP peer information, te-link information,
and per-peer protocol related parameters.
The config>router>lmp>lmp-peer peer-cp-node-id command creates a context per LMP
peer. The entry peer-cp-node-id is the control plane identifier of of the adjacent UNI-N. It is an
IPv4 or unsigned integer-formatted address that is used by the UNI-C for LMP and RSVP-TE
7450 ESS MPLS Guide
router
interface local-gmpls-router-id-name
gmpls-loopback
address local-gmpls-loopback-address //Local LmpNodeId
GMPLS
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