Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 257)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 233
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Displaying the Traffic Engineering database
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The name variable specifies LSP that the user wants to clear byte and packet counters for. When
the user does not specify an LSP name, byte and packet counters is cleared for all RSVP-signaled
LSPs.
Byte and packet counters can be cleared for LDP-signaled LSPs using the following commands.
Syntax: clear mpls statistics ldp tunnel [tunnel-index]
The tunnel-index variable specifies the index number of the MPLS tunnel for which the user wants
to clear byte and packet counters. When the user does not specify an index number, byte and
packet counters are cleared for all LDP-signaled LSPs.
Displaying MPLS summary information
The user can display a summary of MPLS information, including the number of configured paths
and signaled LSPs for which this device is the ingress LER.
Example
Brocade# show mpls summary
Path:
Paths configured = 0
Signaled LSPs:
LSPs configured = 1
LSPs enabled = 1
LSPs operational = 0
Syntax: show mpls summary
Displaying the Traffic Engineering database
An LSRs Traffic Engineering Database (TED) contains topology information about nodes in an MPLS
domain and the links that connect them. This topology information is obtained from either the
OSPF traffic engineering (OSPF-TE) LSAs or IS-IS LSPs with traffic engineering extensions. OSPF-TE
LSAs and IS-IS LSPs with TE extensions have special extensions that contain information about an
MPLS-enabled interface’s traffic engineering metric, bandwidth reservations, and administrative
group memberships.
An LSR, when configured to do so, floods OSPF-TE LSAs or IS-IS LSPs with TE extensions for its
MPLS-enabled interfaces to its neighboring routers in the OSPF or IS-IS area. Other LSRs store the
information from the OSPF-TE LSAs or IS-IS LSPs with TE extensions in their own Traffic Engineering
Databases, allowing each LSR in the area to maintain an identical TED describing the MPLS
topology. The topology information in the TED is used by the CSPF process when it calculates
traffic-engineered paths for signaled LSPs.
The user can display the contents of an LSRs TED. The following example is for a router where
OSPF-TE LSAs are enabled for MPLS interfaces.