From the course: Cisco Catalyst SD-WAN Foundations

TLOC colors - Cisco Switches Tutorial

From the course: Cisco Catalyst SD-WAN Foundations

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TLOC colors

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- [Instructor] TLOC color is used to identify a specific WAN transport that connects to a vantage device. The color is a keyword that distinguish a particular WAN transport as either public or private, and is globally significant across the Cisco Catalysts Event Fabric. This vantage has three interfaces connected to three different providers. From the perspective of vantage, the only way to distinguish which interface is connected to which cloud is through the concept of colors. Colors are utilized to mark or categorize a specific transport. The network administrator will assign transports their respective colors when provisioning the routers. Policies can then be defined that control how data traffic flows across the overlay between these colors. Currently there are 22 pre-built colors broken into two categories, public and private. Private colors are only to be used when there is no NAT between devices on the overlay. If there is a NAT device between vantage devices, then use a public color. Public colors include 3g, biz-internet, public-internet, lte, blue, bronze, gold, green, red, silver. Custom1, custom2, custom3. Private colors include metro-ethernet, mpls, private1, private2, private3, private4, private5, private6. If there is no color defined, then default is the color that will be advertised with the TLOC route. When establishing the IPSec data plane, routers will attempt to establish full mesh connectivity between all routers in the fabric by default. If two colors have IP shapability, they will establish the data plane no matter what the color is.

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