Brocade Communications Systems IP250 user manual Mpls overview, Configuring LDP

MPLS overview 28

The following conditions must be met for inclusion in the MPLS Licensed and Configured Products product group:

•Your version of the Management application supports MPLS.

•Adding the product does not exceed the MPLS product license limit.

For more information about how the Management application counts MPLS products, refer to Brocade Network Advisor Software Licensing Guide.

When the license limit is at 90%, when launching a VLL, VPLS or LSP, the following message is displayed:

Managed MPLS count has crossed 90% of licensed MPLS count.

This is shown once per session.

If the MPLS product license limit is reached, when an MPLS capable product is discovered with a configuration, those MPLS configurations (VLL, VPLS or LSPs) will not be discovered, and the following message is logged in Master Log:

Managed MPLS count exceeds the licensed MPLS count.

When a network discovery is performed and if the network contains many MPLS-licensed products, there is no particular order in which the products are added to the MPLS Licensed and Configured Products product group. Any products in that group may be used in VLL, Local-VLL, VPLS or LSP configurations.

It is possible to add an MPLS-capable product that is not in the product group when configuring a VLL, Local-VLL or VPLS if the license limit is not exceeded. When the license limit is reached, an add/edit/duplicate/delete operation can be performed only on the products in the product group.

MPLS overview

Multi-protocol Label Switching (MPLS) is a packet-switching protocol that handles packet forwarding decisions based on the content of a label assigned to the packet. Label-based switching provides independence from the underlying data link layer protocol, allowing MPLS to carry traffic that uses different underlying structures and protocols, such as SONET frames, ATM frames, Ethernet frames, and IP packets. MPLS provides the basis for the following:

•Label-switched paths (LSPs).

•Virtual Leased Line (VLL) implementations.

•Virtual Private Line Services (VPLS).

For more information about MPLS, refer to your product’s Configuration Guide.

Configuring LDP

LDP is configured from the Configuration wizard Product Payload - LDP Settings dialog box.

Brocade Network Advisor IP User Manual	845
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