[no] interface ip-int-name
config>router>mpls
Supported on all 7210 SAS platforms as described in this document
This command configures MPLS protocol support on an IP interface. No MPLS commands are executed on an IP interface where MPLS is not enabled. An MPLS interface must be explicitly enabled (no shutdown).
The no form of this command deletes all MPLS commands, such as label-map, that are defined under the interface. The MPLS interface must be shut down first to delete the interface definition. If the interface is not shut down, the no interface ip-int-name command does nothing except issue a warning message on the console indicating that the interface is administratively up.
shutdown
Specifies the name of the network IP interface, up to 32 alphanumeric characters. An interface name cannot be in the form of an IP address. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes.
[no] admin-group group-name [group-name...(up to 5 max)]
config>router>mpls>interface
Supported on all 7210 SAS platforms as described in this document
This command associates admin groups with the interface.
The user can apply admin groups to an IES, VPRN, network IP, or MPLS interface. Each single operation of the admin-group command allows a maximum of five groups to be specified at a time. However, a maximum of 32 groups can be added to a specific interface through multiple operations.
After an admin group is bound to one or more interfaces, its value cannot be changed until all bindings are removed. The configured admin-group membership is applied in all levels and areas the interface is participating in. The same interface cannot have different memberships in different levels or areas.
Only the admin groups bound to an MPLS interface are advertised in TE link TLVs and sub-TLVs when the traffic-engineering option is enabled in IS-IS or OSPF. IES and VPRN interfaces do not have their attributes advertised in TE TLVs.
The user can also delete all memberships of an interface by not specifying a group name.
The no form of this command deletes the association of this interface with one or more of the admin groups.
no admin-group
Specifies the name of the group, up to 32 characters. The association of group name and value should be unique within an IP/MPLS domain.
[no] srlg-group group-name [group-name...(up to 5 max)]
config>router>mpls>interface
Supported on all 7210 SAS platforms as described in this document
This command defines the association of RSVP interface to an SRLG group. An interface can belong to up to 64 SRLG groups. However, each single operation of the srlg-group command allows a maximum of five groups to be specified at a time.
The no form of this command deletes the association of the interface to the SRLG group.
Specifies the name of the SRLG group within a virtual router instance, up to 32 characters.
te-metric value
no te-metric
config>router>mpls>interface
Supported on all 7210 SAS platforms as described in this document
This command configures the traffic engineering metric used on the interface. This metric is in addition to the interface metric used by IGP for the shortest path computation.
This metric is flooded as part of the TE parameters for the interface using an opaque LSA or an LSP. The IS-IS TE metric is encoded as sub-TLV 18 as part of the extended IS reachability TLV. The metric value is encoded as a 24-bit unsigned integer. The OSPF TE metric is encoded as a sub-TLV Type 5 in the link TLV. The metric value is encoded as a 32-bit unsigned integer.
When the use of the TE metric is enabled for an LSP, CSPF first prunes all links in the network topology that do not meet the constraints specified for the LSP path. Such constraints include bandwidth, admin-groups, and hop limit. Then, CSPF runs an SPF on the remaining links. The shortest path among the all SPF paths is selected based on the TE metric instead of the IGP metric, which is used by default.
The TE metric in CSPF LSP path computation can be configured by entering the config router mpls lsp cspf use-te-metric command.
The TE metric is only used in CSPF computations for MPLS paths and not in the regular SPF computation for IP reachability. The value of the IGP metric is advertised in the TE metric sub-TLV by IS-IS and OSPF.
The no form of this command reverts to the default value.
no te-metric
Specifies the metric value.