Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 152)

128 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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Setting up signaled LSPs
1
To allow changes to be automatically applied, the user can use the implicit-commit command
under the MPLS policy command to enable certain types of events to trigger implicit commit. When
there are any changes to the configuration of the LSP, the make-before-break operation is not
triggered.
Brocade(config-mpls-policy)# implicit-commit autobw-adjustment
Syntax: [no] implicit-commit [all | autobw-adjustment | lsp-reoptimize-timer]
The autobw-adjustment parameter configures an implicit commit to be performed for the
uncommitted changes before adjusting the bandwidth of an auto bandwidth LSP. Default is
changes are not committed and bandwidth adjustment is skipped.
When the lsp-reoptimize-timer parameter is set, upon the reoptimization timer expiry, uncommitted
changes are applied before initiating make-before-break procedure. Default is changes are not
committed and reoptimization is skipped.
When the all parameter is set, an implicit commit is performed in all conditions before initiating
make-before-break.
Creating an LSP
To create a signaled LSP and enter the LSP configuration level, enter commands such as the
following.
Brocade(config-mpls)# lsp tunnel1
Brocade(config-mpls-lsp)#
Syntax: [no] lsp name
Specifying the egress LER
Each LSP requires one and only one egress LER. The egress LER is the router from which packets
exit the MPLS domain in this LSP. After the LSP is successfully established, the address of the
egress LER is installed as an internal host route on the ingress LER, allowing the ingress LER to
direct BGP next-hop traffic into the LSP. The destination address does not necessarily have to be
the final node in the primary path specified for the LSP. When the final node in the path differs from
the destination address, the hop between the final node in the path and the egress LER is treated
as a loose hop.
To specify 10.100.1.1 as the address of the egress LER for LSP tunnel1.
Brocade(config-mpls)# lsp tunnel1
Brocade(config-mpls-lsp)# to 10.100.1.1
Syntax: to ip address
The egress LER is the only required parameter in an LSP. All other parameters are optional.
NOTE
When OSPF is used as the IGP, the egress LER advertises the tunnel destination in type 1 (router)
LSA in order for the LSP to be properly mapped by CSPF. To ensure that this happens, connect to the
egress LER and enable OSPF on the interface which has the IP address of the tunnel destination.
When none of the interfaces on the egress LER has the IP address of the tunnel destination
(example, when the tunnel destination address is the egress LERs router ID rather than an interface