This blog was originally started to better help me understand the technologies in the CCIE R&S blueprint; after completing the R&S track I have decided to transition the blog into a technology blog.
CCIE #29033
This blog will continue to include questions, troubleshooting scenarios, and references to existing and new technologies but will grow to include a variety of different platforms and technologies. Currently I have created over 185 questions/answers in regards to the CCIE R&S track!! Note: answers are in the comment field or within "Read More" section.
You can also follow me on twitter @FE80CC1E
What does "mpls ldp autoconfig" and "mpls ldp autoconfig area #" accomplish?
2 comments:
mpls ldp autoconfig
The following command globally configures the LDP (Label Dirtibution Protocol) on interfaces associated with an IGP routing protocol like OSPF or IS-IS. Manually configuring LDP can be time consuming and error prone which is why Cisco has introduce a auto-configuration option.
mpls ldp autoconfig area #
The following command auto-configures LDP for a given OSPF area. If no area number is specified the command will auto-configure LDP for all OSPF areas on the switch.
Additional Notes: You must ensure "mpls ip" is enabled in global config.
Example
To enable with OSPF do the following:
Note: OPSF must be enabled for that interface
Global Config
"mpls ip" (enables MPLS IP)
"mpls label protocol ldp" (specifies the default labeling protocol)
Router OSPF
"mpls ldp autoconfig area (num)" - this ensures it is enabled for interfaces in an area
"network (IP_ADD_Interface) 0.0.0.0 area (num)"
To disable ldp autoconfig on a per interface
"no mpls ldp igp autoconfig"
Show commands
"show mpls interfaces"
"show mpls interfaces detail"
"show mpls discovery"
"show mpls discovery detail"
Post a Comment